Magnat Audio Markası'nın Ürünleri

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

Thru-Hole DIP Switches

DIP Switches

SERIES 79B

Linear Action, Coded Output

FEATURES

•ReliableSwitching,PositiveDetent

•CodesinBCDandHexadecimal

•TrueZeroOutput

•10Positions

•2000CycleLife

•Upto60,000DetentOperations

•RoHsCompliant

DIMENSIONS Ininches(andmillimeters)

CIRCUITRY

SPECIFICATIONS

Electrical Ratings

Make-and-break Current Rating:2,000cycles

at10mA,50mVdc;2,000cyclesat125mA,6

Vdc;2,000cyclesat50mA,30Vdc.

Contact Resistance: 100 mohms maximum

afterlife,measuredat10mAdcand50mV(open

circuit).Initialvaluesare60mohmsmaximum

forcodedswitches.

Insulation Resistance (at 100 Vdc):

Betweenadjacentisolatedcontacts:Initial:

5,000Mohmsminimum;AfterLife:1,000

Mohmsminimum

Acrossopencontacts:Initial:5,000Mohms

minimum;AfterLife:1,000Mohmsminimum

Dielectric Strength:Betweenadjacentisolated

contactsandacrossopencontacts.Initial:750

Vac;AfterLife:500Vac

Contact Carry Rating:2ampswithamaximum

contacttemperatureriseof20°C.

Mechanical Ratings

Mechanical Life:4,000cyclesmaximum.Note:

acycleisonecompleteoperation,backandforth

throughallswitchpositions.

Vibration Resistance:10to2,000Hzat15G

or0.060"doubleamplitude;nodamageandno

contact openings exceeding 10 mS (Method

204,TestConditionB).

Shock Resistance: 509, 11 mS, half sine;

no damage and no openings exceeding 10

microseconds(Method213,TestConditionA).

Environmental Ratings

RefertoMIL-STD-202FperMIL-S-83504

Operating Temperature:-40°Cto+85°C

Storage Temperature:-55°Cto+85°C

Moisture Resistance: 240 hours with

temperaturecyclingandpolarization,perMIL-

STD-202F,Method305

Materials and Finishes

Nonconductive Parts:PlasticUL94V-O

Shorting Arm: Phosphor bronze, gold plate

overnickelplate

Base Contacts:Copperalloy,goldplateover

nickelplate

Terminals:Copperalloy,mattetinplatedover

nickelbarrier

Potting Material:Epoxy

Tape Seal and Packaging

Tape Seal:Polyesterlm

*Atoptapesealisrequiredforswitchesthataremachinesolderedorheavilycleanedafterhand

soldering.Toordertopsealversions,add"S"beforethe"T"intheGrayhillpartnumber.

Available from your lo ca l Gray hill

Distributor.

For prices and discounts, contact a local

Sales Ofce, an authorized local Distributor

orGrayhill.

Alldimensionsnotshownherearethesameasthoseonthefacingpage.

Number of Positions Type of Circuit Code Number per Tube Part Number*

 10 BinaryCodeDecimal 9 79B10T

ORDERING INFORMATION