122

B8)T

MS(sehct iwS nottubhsuP erut ai ni

M-buS delaeS

SPECIFICATIONSCONTACT RATING: Dependent upon contact material See Page 125.MECHANICAL LIFE: 50,000 make-and-break cycles. CONTACT RESISTANCE: 20 m max. initial @ 2-4VDC 100mA for both silver and gold plated contacts.INSULATION RESISTANCE: 1,000 M min.DIELECTRIC STRENGTH: 1,000 Vrms min.@sea level.OPERATING TEMPERATURE: -30°C to 85°C.

MATERIALSCASE & BUSHING: Glass filled nylon 6/6,flame retardant, heat srabilized (UL94v-0).PLUNGER: Thermoplastic Polyester (UL 94V-0), with intenal O-ring seal.SWITCH SUPPORT: Brass,tin plated.CONTACT / TERMINALS: Silver or gold plated copper alloy. (See Page 125)

HOW TO ORDERMODEL NO. RoHS

SOLDERINGTERMINATIONS CONTACT

MATERIALSEAL

Model NO.8BS8 On-Mom.8BS9 Off-Mom.

E EPOXY (std)MTMZ

(STD) Right angle, surface mount.(STD)

Terminations RoHS solderingContact materialQ SilverR GoldC Gold over silver

Seal

E

Rohs CompliantRohs & Lead FreeHalogen Free+RoHS

SF

123

Sealed Sub-Miniature Pushbutton Switches(SMT)8B Series

B8seh cti

w S not tu bh su P

P.C. MOUNTING

Part No. Shown : 8BS8MTRE

Part No. Shown : 8BS8MZRE

Part No. Shown : 8BS9MTRE

MT

SPDT

MZ

SPDT

MT

SPST

POLE OPTIONS

SWITCH FUNCTION

2 (COMM)

NC 1 3 NO

Q28B19

Q28B18

UL/CSAMODEL

NO.

8BS9

8BS8

MODELNO.

SP

MOM=MOMENTARY

NO.POLES

OPEN

MOM

MOM

ON

OFF

2-1 2-3

POS.1POS.2SWITCH FUNCTIONPOS.1 POS.2

2 (COMM)

NC 1 3 NO

1-31 3

CONNECTED TERMINALS / SCHEMATIC

.0310.80

.2005.08

.1002.54

.0591.50

.2726.90

.0792.00

.3137.95

.0711.80

.2335.90

.1213.08

.0200.51

.2005.08

.1604.06 .325

8.23

1 2 3

.2345.94

.3208.13

.2767.00

EPOXY SEAL

Ø.100Ø2.54 .400

10.16

1 2 3

P.C. MOUNTING

.0802.03

.3468.8

23

1

.1503.81

.1283.25.040

1.02

.1403.56

.0701.78

.1433.63

.0300.77 .080

2.03

.0401.02

P.C. MOUNTING

.0802.03

.3468.8

31

.1503.81

.1283.25.040

1.02

.1403.56

.0701.78

.1433.63

.0300.77 .080

2.03

Ø.100Ø2.54

.2335.90

.41010.41MAX.

.2446.20

.3208.13

.0200.51

.3258.23

.2005.08.030

0.76

.1243.15

2 31

.3468.8

Ø.100Ø2.54

.2205.60

.41010.41MAX.

.2446.20

.3208.13

.0200.51

.3258.23

.2005.08.030

0.76

.1243.15

31

.3468.8

1.714.35

.0200.51

.0962.45

1.714.35

.0962.45

EPOXY SEAL

EPOXY SEAL

124

B8)T

MS(sehct iwS nottubhsuP erut ai ni

M-buS delaeS

PACKAGING

Part No. Shown : 8BS9MZRE

MZ

SPST

ELONGATED SPROCKETHOLES

.0792.00

.1574.00

.87322.18

1.11828.40

1.26032.00

.0681.75

.3508.90

Ø.061 DIA.Ø1.55

.63016.00

.2606.60

.63016.00

SCALE: 1 : 1

1.47637.50

1.23831.44.087

2.20

12.992330.00

.79520.20

SCALE: 10 : 1

REEL INFORMATION

QUANTITY PER REEL 500 / pcs

Switches available on embossed antistatic tape and reels.Tape and cover strip are conductive for use near statically sensitive components.

.2005.08

.3258.23

.1604.06.220

5.60.1213.08

1 3.2345.94

.3208.13

.2767.00

EPOXY SEAL

.40010.16

.0511.30

Ø.100Ø2.54

.0200.51

.0310.80

.2005.08

.0591.50

.2726.90

.0792.00

.3137.95

.0711.80

1 3

P.C. MOUNTING

125

Sealed Sub-Miniature Pushbutton Switches(SMT)8B Series

B8seh cti

w S not tu bh su P

CONTACT MATERIAL OPTIONS

MANUAL SOLDERING: Use soldering iron of 30 watts, controlled at 350°C approximately 5 seconds while applying solder.WAVE SOLDERING: Recommended Soldering Temperature: 260 ± 5°C Duration of Solder Immersion: Max 5 sec. (PCB is 1.6mm in thickness)SOLDERING: Vapor phase & IR-reflow soldering can be applied.

0.4 Volt - Amps ( VA ) max. @ 20V max. ( AC or DC )

3 Amps with resistant load @ 120VAC or 28VDC 1 Amps with resistant load @ 250VAC

QCR

CONTACT PLATING

SilverGold over Silver

Gold

RATINGS

Q = Gold flash over silver

C = Gold over silver

R = Gold

TERMINAL PLATING

Temperature Profile

(°C)25020015010050

RoomTemperature

Room TemperatureZone Time (Sec)

Time (Sec)

Pre-heat (A)

Soak (B)

Peak (C)

Peak (D)

Peak (E)

150°C

180°C ~ 200°C

200°C ~ 235°C

235°C ~ 260°C

260°C

Peak : 260°C

Min 120s

Min 150s

Min 30s

Min 40s

Max 5s

A B C D E

SOLDERING PROCESSES