Grayhill Pushbutton switches: Butt Contact 38BC Series Manuel d'utilisateur télécharger pdf

Pushbutton Switches

Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com

Butt Contact Pushbutton Switches

Series:38BT=SPST,Momentary,Thru-Hole

 Series:38BC=SPDT,Momentary,Thru-Hole

 Dimension A:0=0.020"4=0.215"

38BT-4-V-3-S

 Seal:S=O-RingSeal,N=NoSeal

 Contact Material:1=SolderDipoverGold

 2=SolderDipoverSilver

 3=Gold-RoHSCompliant

 4=Silver-RoHSCompliant

 Orientation:V=VerticaltoPCB

38BC

SPDT

38BT

SERIES 38BT and 38BC

Sub-Miniature Vertical PC Mount

FEATURES

•ActuatesatRightAngletoPrintedCircuitBoard

•Drop-InReplacementforIndustryStandard

•SPSTandSPDT,MomentaryContact

•SealedPlungerOption

Unlessotherwiseindicated,tolerancesare±.010(0,25)

CIRCUITRY

SPST–N.O.

SPST N.O.

ORDERING INFORMATION

DIMENSIONS ininches(andmillimeters)

SPECIFICATIONS

Electrical Ratings

Operating Life:80,000make-and-break

cyclesatfullload

Contact Rating (resistive load):

Gold Contacts:0.4VAmaximumat20Vacor

Vdc

Silver Contacts:1.0Ampmaximumat120

Vacor28Vdc

Contact Resistance:Below20milliohms

typicalinitialat2-4Vdc,100mA,forboth

silverandgold-platedcontacts

Insulation Resistance:1000megaohms

minimum

Voltage Breakdown:1000Vrmsminimumat

sealevel

Operating Temperature:-30°C.to+85°C.

Solderability:PerMIL-STD-202F,Method

208D,orEIARS-186E,Method9(1hour

steamaging)

Materials and Finishes

Base and Cover:Thermoplastic(UL94V-0)

Plunger:Thermoplastic(UL94V-0),(S

versionsincludeaninternalo-ringseal)

Terminals:Copperalloy,goldorsilverplate

(asspecied)overnickelplate

Spring:Platedmusicwire

Contact System:Copperalloy,goldorsilver

plate(asspecied)overnickelplate

SPDT–N.O.

N.O.

TERM.3

N.C.

TERM.1

COMM

TERM.2

SPST

.190(4,83)

DIA.

Dim.

.177

(4,50)

.527(13,39)

.130(3,30)TYP.

.200

(5,08)

.200

(5,08)

.320

(8,13)

.020(0,51)

SQUARE

.180(4,57)

DIA.

.100(2,54)

DIA.

.200

(5,08)

.200

.177

(4,50)

.527(13,39)

.130

(3,30)

TYP.

DIM"A"

.100

(2,54)

DIA.

.180

(4,57)

DIA.

.020(0,51)

SQ.TYP.

.320

(8,13)

.100

(2,54)

TYP.

.190

(4,83)

DIA.

SERIES 38BT and 38BC 1

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Page 1 - SERIES 38BT and 38BC

Pushbutton SwitchesGrayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354

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