world

leader in

temperature

sensingt e l e c o m m u n i c a t i o n s

b i o m e d i c a l

w h i t e g o o d s

a u t o m o t i v e

h v a c

Our mission is... to be the leadingglobal provider of solutions forTemperature sensing.

2

Our commitment to excellence is

reflected in our wide range of

international approvals including

QS9000, ISO 9001, Ford Q1, EQ Net,

BS CECC, BS IEQ and UL.

Thermometrics products play a vital

role in the measurement, control and

protection of automobiles, medical

devices, telecommunications systems,

fluorescent lights, domestic appliances

and countless other applications.

Constant investment in developing

new materials and production methods

means Thermometrics is continually

improving its performance across a

wide range of products from

components to higher level assemblies.

Competitively priced components are

developed in partnership with our

customers’ ever increasing demands in

terms of quality, reliability and

performance.

The Thermometrics Group is a

major global provider of solutions

to customers’ temperature

sensing problems. With nearly 60

years experience, Thermometrics

leads the way in the design and

manufacture of high quality

thermistors. It is part of the

multi-national Spirent plc,

specialists in electronic and

electrical products with over 100

companies in 19 countries

throughout the world.

Thermometrics is globally based with

major manufacturing facilities in the

USA, Europe, Japan, Korea, India,

Puerto Rico, Mexico and China with

regional technical applications and

prototyping facilities throughout the

world. The four key facilities are in

New Jersey, Pennsylvania, England,

and Korea.

With this capability,

customers can benefit from

excellent local service and

manufacturing, backed by

international expertise.

Global provider of solutions 3

Automotive Applications

Climate Control

Circuit Protection

Information Display

Safety

Environmental Protection

4

Engine Management

Innovative designs include a unique

patented composite sensor for coolant

temperature gauges. It combines the

characteristics of both Negative

Temperature Coefficient (NTC) and

Positive Temperature Coefficient (PTC)

thermistors to provide users with their

own custom designed resistance versus

temperature curve.

We offer one of the most

comprehensive ranges of products in

the world today, including high

temperature thermistors, gauge drivers

and lead frame technology. We are a

one stop supplier and provide our

customers with total capability. With

manufacturing facilities in North

America, Europe and Asia we are well

placed to provide global and regional

solutions.

In this industry, the importance of

engine management, safety, fuel

economy and control of exhaust

emissions is growing rapidly. As

a result, there is an increasing

use of electronic systems which

depend on sensors to help

monitor, measure and control the

performance of vehicles.

Thermometrics is a world class solver

of customers’ problems in temperature

measurement and surge protection,

working with major automotive

manufacturers on all continents. Our

thermistors are widely used in

automobiles and can be found in

engine management, information

display, circuit protection, climate

control, environmental protection and

safety systems.

Automotive Expertise

InnovativeThermometrics has pioneered lead

frame technology used by major

temperature probe suppliers in the USA

and is set to revolutionize production

lines around the rest of the world. The

probe terminal and thermistor lead

wire are constructed of a single piece of

metal, reducing the number of intercon-

nections and ensuring a more reliable

device. The design allows for the entire

production process to be fully

automated providing for a more

consistent product at competitive prices.

5

TelecommunicationsApplications

Battery Feed

Line Protection

Battery Recharge

6

Simplicity atits best

For the protection of exchanges,

manufacturers want a device that is

compact and easy to assemble.

Working closely with our customers,

we have designed a unique surface

mount PTC device, type YSM. This

patented design incorporates a

unique surface mount lead frame

construction to provide the

performance of a wired device. The

result is a simple to assemble, cost-

saving and space-saving device that

meets our customers needs.

against high voltages, short circuits and

other hazards. In office equipment

thermistors are used to control critical

process temperature.

With deregulation and new markets

emerging around the world,

Thermometrics is producing sensors

suitable for the global market and has

established manufacturing facilities to

meet local content requirements. To

satisfy these rapidly changing demands,

the company is investing heavily in R &

D to develop new products that will

reach and exceed the requirements of

our customers today and tomorrow.

Thermometrics’ sensors are used

to control and protect vital

telecom equipment and other

office machines. These include

telephone exchanges, telephone

ancillary equipment, computers,

fax machines, photocopiers,

battery packs, switching power

supplies, printers and pagers.

Using high performance ceramics and

the latest technology, Thermometrics

provides solutions that offer long-term

reliability. In telephone exchanges

these state of the art ceramics protect

Protecting Telecommunication Systems 7

Medical ApplicationsOral Temperature

Esophageal Catheter

Thermal Dilution. Heart Catheter

Kidney Dialysis

Urinary Catheter

Rectal Temperature

Skin Temperature

8

Whenprecisioncounts

Thermometrics has developed

remarkably small, high performance

sensors. Applications include the

thermodilution catheter fitted with a

biomedical thermistor for the

measurement of blood temperature.

A recent new development is a sensor

for portable blood analyzers that

accurately measures blood

temperature providing immediate

results right at the patient’s bedside.

Other innovative work carried out

includes small precision sensors for

cancer research. Thermistors are being

used to measure the temperature of

cells. By monitoring this precisely,

doctors can use heat to destroy

diseased cells in tumors.

Our facility in Edison, New Jersey is a

center of excellence. Here, state of the

art thermistors are developed, tested

and screened to ensure they meet the

ever challenging demands of the

medical market.

Thermometrics is the world

leader in thermistor temperature

sensors for medical applications.

Our NTC thermistors are

renowned for their accuracy,

reliability and small size.

These products are used extensively

for heart catheters, esophageal

stethoscopes, fever thermometers, skin

sensors, blood analyzers, incubators,

respiration monitors, hypodermic

needle sensors and many other

applications.

Thermometrics offers customers more

than just sensors. Our success results

from our expertise in solving

customers’ temperature related

problems.

Precision in the Medical Field 9

Electronic circuitry and sensitive

system components in heating,

ventilation and air conditioning

applications need thermistor

protection and control. The

sensors are used extensively

in process control energy

management, HVAC-systems,

power supplies, transformers,

motor soft start and general time

delay units.

Efficient Heating & Ventilation

Easy to useThermometrics has designed a

thermistor that represents a significant

advance in the accurate measuring

of water temperature. The probe

combines fast response with

mechanical robustness. This unique

product is increasingly used in critical

applications such as electrical showers.

Our custom-design capability and

problem solving expertise means that

we can provide innovative solutions in

circuit protection, temperature

measurement and control, liquid level

detection and gas flow measurement.

We have one of the most extensive

product ranges in the world.

10

ReliableThe measuring and control of

temperatures in refrigeration

equipment until recently has been

unreliable because of moisture

ingress, causing components to fail.

Thermometrics refrigeration probes

are specially designed to be resistant

to moisture ingress. Highly accurate

and reliable, these can now

increasingly be found in domestic and

commercial refrigerators.

Around the Home

Today’s consumers expect their every

day appliances to be very reliable

and efficient. Electronic sensors offer

improved accuracy over electro-

mechanical solutions and can be

designed to perform over very wide

ranges of temperatures and

specifications. Our sensors play a

vital part in measuring and

controlling the temperature of water,

steam, air and food. They are also

used for flow measurement, level

control, overload protection and in

combination with other sensors for

multiple functions.

Temperature sensors can be found all

around the home in washing machines,

dishwashers, cookers, microwave ovens,

irons, toasters, refrigerators and deep

freezers.

11

12

Thermometrics’ commitment to

excellence is evident at every stage. It

starts with listening to and

understanding customer needs,

through to development, production

and on-time delivery.

Thermometrics is at the forefront

of thermistor technology. Our

continuous investment in both

R & D and production equipment

enables us to provide unrivalled

customized solutions.

Total control at all stages of production

allows us to build in specific customer

requirements in the most economic

way. We have designed and developed

our own manufacturing and test

equipment to ensure that the highest

standards are maintained. Quality is

further assured through SPC

techniques and use of independent

test and calibration facilities.

Manufacturing processes and quality

procedures are designed in line with

ISO 9001 and QS9000.

Commitment to Excellence 13

In addition to ISO 9001 and QS9000,

we have over 100 quality approvals

from recognized bodies around the

world.

Around the world, Thermometrics has

local Sales and Applications Centers to

offer you first-line application support.

We aim to work closely with our

customers and form long-term

partnerships so we can provide high

quality solutions that match your needs.

Customers can further benefit from

our 24 hour worldwide resource based

in North America, Europe and Asia.

Global provider of Local Services

14 NTC or PTC

NTC ThermistorsNTC thermistors are manufactured from the oxides oftransition metals and can operate over the range of-196oC to + 1000oC.

When should you choose an NTC Thermistor?

When a continuous change of resistance withtemperature is required.

Thermistors are thermally sensitive resistors with either a negative (NTC) or positive (PTC) resistance/temperaturecoefficient. Thermometrics offers a wide range of both types of thermistors from component level through tocomplete assemblies.

Both thermistors are solid state ceramic components, known for their exceptional reliability and long life.

To help you choose between NTC or PTC, you will find a comparison of the two types of thermistors on these pages.

Temperature

Res

ista

nce

Volts

Current

What are the key characteristics of NTCs?

● Defined sensitivity to temperature

● Sensitivity to electrical power input

● Sensitivity to changes in thermal conductivity

What are the main applications for NTCthermistors?

Temperature measurement and control

Temperature compensation

Surge suppression

Power measurement

Fluid level - flow detection

15

PTC ThermistorsPTC Thermistors are temperature dependent resistorsmanufactured from doped barium titanate and areavailable with transition temperatures from 30o to 250oC

When should you use a PTC Thermistors?

When a drastic change of resistance is required at aspecific temperature or current level.

NTC or PTC

Temperature

Res

ista

nce

Volts

Cur

rent

What are the key characteristics of PTCs?

● Large change in resistance at a preset temperature

● Ability to self-regulate temperature

● Current-limiting capability

● Sensitivity to changes in thermal conductivity

What are the main applications for PTC thermistors?

Over temperature protection

Over current protection

Surge generation

Current stabilisation

Fluid level - flow detection

Self regulating heaters

On the following pages, you will find an overview of the NTC and PTC products covering components, probes andassemblies. Also included are laboratory standards and instruments for precision temperature measurement.

To complement our range of thermistors, we also offer other types of temperature sensors including thermocouplesand RTDs. In addition to temperature sensors, we have extensive ranges of pressure, gas and humidity sensors.

For more detailed information about the variety and capability of our product range, ask about our full productcatalogue now available on the internet and on CD-Rom. See the back page for an office near you.

NTC Thermistors16

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Glass encapsulated DO-35 package

Glass encapsulated chips with leads

Discs with radial leads

Discs for inrush currentlimiting

Key Features Typical Uses

● Interchangeability options down to ±0.1oC accuracy 0-100oC range.

● Head size 0.8 - 2.4mm

● Tmax 300˚C. ● Hermetic seal● High voltage insulation. ● Bandoliered for auto PCB

insertion.

● Head size down to 0.8mm. ● Time constant down to

4.5secs. ● Tmax 300oC. ● Tolerances down to ±1%.● Hermetic seal● High voltage insulation. ● Radial wires suitable for

probe assembly.

● Operation at high currents.● Wide range of resistance vs

temperature curves. ● Custom design.

● Continuous current ratings 1.1 to 16A.

● Cold resistances 0.7 to120 ohm

●

●

●

●

●

●

●

●

●

●

●

●

●

●

Automotive enginemanagement, airconditioning, medical

Battery packs,toasters, hair dryers

Office equipment,automotive enginemanagement systems,self heated applicationeg liquid level sensing,gas flow measurement

Automotive enginetemperature,compensation of woundcomponents

Soft start for switchmode power supplies,filament lamp circuits

Unleaded discs

● Operation at high currents.

● Wide range of resistance vs temperature curves.

● Custom design.

Automotive enginetemperature sensing

Epoxy-coated chipthermistors TK95, KSP,

SA, DC95,EC95,MC65, MF65,SC30, SC50,ND NK, MS,C100, NDK,NDP, NDM,NDL

DK, GE, TH

GC32, NG

KE, KS, RL10,RL14, RL20,RL30,RL5/40/45

CL, TP

KU, UD20,TD, T3D,T5D

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Glass-encapsulated surfacemount chips

Leadless chip thermistors

Bare bead thermistor

Glass-coated beads

Key Features Typical Uses

● 0603, 0805, 1206 sizes. ● Ni barrier terminations. ● Resistance tolerances

down to ±1%.

● Tmax 250oC. ● Suitable for harsh

environments and soldering profiles.

● Silver or gold electrodes suitable for wire bonding.

● Small size

● Fast time constant 0.11secs.

● Extremely small size 0.13- 0.25mm

● Hermetically sealed. ● Small size

0.13mm-1.1mm. ● Tmax 300oC.

●

●

●

●

●

● ●

●

●

●

●

●

●

●

●

●

●

●

Rechargeable batterypacks, LCDtemperaturecompensation.

SMD circuitry

Hybrid circuits

RF & microwavepower measurements

Gas chromatography,thermal conductivityanalysis, gas flowmeasurement, liquidlevel sensing

Glass-encapsulated beads,rods, probes

● Robust.● Hermetically sealed. ● Tmax 300oC. ● Interchangeable matched

pairs available.

Liquid level sensing,gas flow measurement,fluid temperature,pulse suppression.

Surface mount chips

NHQ,NHQM,NHQMM,NC08, NC12,NB

DKM, MELF

NDU, HM

BB05/07/11

B05/07/10/14,B35/43, U

F/FS, G/GL,GM, RA,BR11/14/16/23, BR32/42/55,P20/25/30,P60/65/85/100,R60/65/85/100,SP60/85/100,FP07/10/14

NTC Thermistors 17

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NTC Thermistors18

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Cryogenic thermistors

Thermoflakes

Glass coated beads onheaders

Key Features Typical Uses

● High temperatureoperation

● Tmax up to 1000oC

● Suitable for use at very low temperatures - down to -196oC

● Ultra-thin 0.5µm (0.025mm).

● Fast response time 0.035secs.

● High surface to mass ratio ● IR absorbent. ● Tmax 300oC

● Tmax 180oC. ● Time constant 1s

●

●

●

●

●

●

●

Automotive exhaust,self cleaning ovens,process control,soldering stations

Cryogenictemperaturemeasurement, fluidflow, liquid level ortemperature sensing

Infra-red detectionPower measurementand control

Fluid flowmeasurement,temperaturemeasurement.

High temperaturethermistors

MA354-100,MT250/HT1000,HTP

RL10, RL14,RL20, RL30,RL35/40/45CTP60 to 100,CTFP07 to 14

1F, 2F, FM

P, US2274

PTC Thermistors 19

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rren

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Motor protection

Surface sensors

Wired devices - general purpose

Surface mount devices

Key Features Typical Uses

● 0805 size. ● Ni barrier

termination ● Switch

temperatures 60-130oC

● Small insulated head.

● Long insulated flexible wire.

● Switch temperatures 30-180oC.

● DIN compliance. ● MOD approval

● Screw-in or bolt-on configurations

● Flexible or solid wire ● Switch temperature

30-140oC

● Ratings up to 1000Vrms.

● Switch Currents up to 2A.

● CECC approval. ● UL approval.

● High power SMD PTCs.

● Compatible with SMD assembly.

● Ratings up to 1000Vms.

● Switch currents up to 2A.

● Conformance toITU-T K20/21

●

●

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●

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Dc-dc converters,automotive airbagsystems.

Protection ofindustrial motors& transformers,submarine motors

Semi-conductorheat sinks,enclosure panels,power supplies

Transformerprotection,electronic lighting,instrument/DMMprotection

Telecom lineprotection, DMMinstrumentprotection,electronic lightingcontrol

Surface mount

YSC

YA, YB,YC, YD,YF, YG,PTD

YK, YR,PTA, PTE

YM120,YP,YS4019,YS4020,PTF,PTO,PTU

YSM,YSM4021,PTSM

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Liquid level sensing

Degaussing

Key Features Typical Uses

● Temperature regulation on range of supply voltage.

● Voltage ratings 12-240V.

● Reference temperatures 40-180oC

● Custom design

● Water resistant housing.

● High sensitivity. ● Axial & radial formats

● Fast response

●

●

●

●

●

●

Contact lens cleanerkits, medicalequipment, in-linediesel fuel heaters,LCD heaters,stabilisation ofelectroniccomponents, waxmotors, saw devices

Tea urns, fuelstorage systems,industrial plants,laboratory waterstills, vendingmachines

Colour TV andmonitors

Self-regulating heaters

YH, PTH

YL,YLS953,JYA

PT11,PT12

PTC Thermistors20

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ent S

tabi

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empe

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Telecom protection

● Custom designed for telecom applications

● Excellent thermal shock & power handling performance.

● Conformance to ITU-T K20/21

Telecom primary & secondaryprotection

YS

Probes & Assemblies 21

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Automotive assemblies

General purpose sensors

High temperature probes

Fast response chip onsubstrate

Key Features Typical Uses

● Designed for automated assembly.

● Reduces overall sensor cost.

● Enhanced reliability.

● Custom designed.

● Tmax 225oC. ● Range of fittings

● Tmax up to 1000oC. ● Rugged construction

● Response time down to 250ms.

● Voltage insulation 1500V.

● Environmental protection

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●

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Automotive enginetemperature.

Automotive coolanttemperature indication

Domestic ovens,combination microwaveovens, industrialprocess control.

Automotive exhaustDomestic ovensIndustrial furnaces

Gas boiler control,domestic water systems,air conditioners,showers, vendingmachines, radiator inlet-outlet, automotivetemperature sensing,aerospace de-icing.

Refrigeration, low temperature

● Low temperature. ● Resistant to moisture

ingress

Low temperatureappliances, airconditioningevaporators, industrial& domesticrefrigeration

Automotive subassemblies

LF, Leadframe etc

Brassassembliesetc

GT, JA, JB,JE, JF, JP, M series, T series

JA354,AUHT,INHT, OVHT

JC, JW, JD,JS2945,Substrate

JL, JM, JJ, JI, A-1424 - A-1428A-1447 - A-1450

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Probes & Assemblies22

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Eyelet

Composite NTC/PTC

Key Features Typical Uses

● 0.65mm max thickness. ● Custom designs

● Ease of installation. ● M3, M4, M5 eyelet sizes

● Constant resistance over normal operating temperature range.

●

●

●

●

●

Temperaturemeasurement inrechargeable batterypacks using prismaticcells, automotiveheated seats.

Semiconductorheatsinks, enclosurepanels, surfacetemperaturemeasurement, PC’sfan control, powersupplies

Automotive coolantdashboard sensor.

Flexible PCB

FL

JR, M2000

KY

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Medical products

● Clinically approved materials

Thermometer probes,catheters, skinsensors, fluid flow.

Other Products 23

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Standards and instruments

Thermocouples / RTDs/ Thermopiles

Pressure sensors & switches

Gas sensors

Key Features Typical Uses

● Operation up to 1150oC. ● Flexible sensor. ● Industry standard

connection

● Transistor outline (TO), dual in-line (DIL) & diaphragmed package for environmental protection.

● Rated pressures 0.1-500 kgf/cm2

● Sensors to detect hydrogen, carbon monoxide, cigarette smoke, methane, LP gas, alcohol, toluene, ethanol, water

●

●

●

●

Secondary or workingtemperature standardsfor all laboratorymetrology applications,medical, laboratory.

Production test,process monitoring, R& D, environmentalmonitoring.

Industrial process,food processing,automotive, microwave ovens

Automotive brake, oil& fuel systems,vacuum cleaners

Gas appliances, COalarms

Humidity sensors

● Polymer and ceramic types. 0-100% RH

Extractor fans, airconditioners

Standards and instruments

S/AS/ES, CSP

Smartlink,TS8504

JTC’s, JTR’s,LGTP

SD, SP, SM,CP10, A-1446

AF

HS12, HS15,HS30, HU10

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Thermometrics Germany Wittumstraße 10D-75181 PforzheimGERMANYTelephone: +49 (0) 7231 566990 Fax: +49 (0) 7231 564600E-mail: dirk.duester@thermometrics.com

Thermometrics St Marys967 Windfall Road, St. Marys Pennsylvania 15857-3397 USATelephone: +1 (814) 834 9140Fax: +1 (814) 781 7969Video 128: +1 (814) 781 8423/8427E-mail: sales-pa@thermometrics.com

Thermometrics India181, Lake Shore RoadBangalore - 560 076lINDIATelephone: +91 (0)80 6680533Fax: +91 (0)80 6681962

Thermometrics Hong Kong22A Way On Building500 Jaffe RoadCauseway Bay HONG KONGTelephone: +852 2552 1908Fax: +852 2871 0918E-mail: EL28@thermometrics.com.hk

Thermometrics Puerto RicoEduardo DevelopmentRoad 402 N Km10Zona Industrial AnascoAnasco, P.R. 00610Telephone: +1 (787) 826 0222Fax: +1 (787) 826 0366

Thermometrics Korea#302 3rd floor Bethel Bldg324-1, Yangjae-dongSeocho-Ku, Seoul KOREATelephone: +82 (0)2 576 5232, 5233Fax: +82 (0)2 576 5234

http://www.thermometrics.com Printed in the UK 2000© Thermometrics United Kingdom.

Thermometrics Japan Co., Ltd.5310 Mikajiri, Kumagaya-shi,Saitama-Ken, 360-0843 JAPANTelephone: +81 48 532 2200, 533 8612Fax: +81 48 532 5581, 8456

Thermometrics New Jersey808 U.S. Highway 1, EdisonNew Jersey 08817-4695 USATelephone: +1 (732) 287 2870Fax: +1 (732) 287 8847Video 128: +1 (732) 457 9322/9376E-mail: sales@thermometrics.com

Thermometrics United KingdomCrown Industrial Estate Priorswood Road, TauntonSomerset TA2 8QYUKGeneral Telephone: +44 (0) 1823 335200 Sales Telephone: +44 (0) 1823 336644Fax: +44 (0) 1823 332637Video 128: +44 (0) 1823 348389E-mail: info@thermometrics.com