Datasheet > 1949MST

1949MST

更新时间： 2024-11-20 23:18:11

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其他 - ETC		/
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Interface IC

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中文翻译

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数据手册

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1949MST 数据手册

Series 194/195 DIP

Side actuated,

through hole

DIP switches

Features

Optimized Mechanical Features

• SPST switching functions

• Enclosed actuators shield contacts from

foreign particles throughout life of switch

• Reliable tape top seal optional/bottom epoxy seal

standard

• Standard 2.54mm (.100") x 7.62mm (.300") DIP centers

• Complete marking on front side includes all information: ON

direction, pole number, logo, part number and date code

Optimized Contact System

• Contact wiping on make and break

• Lock-over-center design provides positive detent action

• Optimized, active contact design incorporating a dimple-

to-flat surface wiping interface with high contact force

• Insert molded base halves, of high temperature plastic,

ensure mechanical integrity of contacts and terminals

through soldering operations

Materials

U.S. Patent # 4,389,549

• All U.L. 94 V-O plastics used

• Series 194 – gold plated contacts

• Series 195 – tin-lead plated contacts

Series 194 – Premium Gold Plated Contacts

Series 195 – Economical Tin-Lead Plated Contacts

Electrical and Mechanical Specifications

Switch Function

Actuation Life

Single pole single throw

Series 194 – 7,000 cycles switching 50 mA @ 24 VDC

Series 195 – 2,000 cycles switching 50 mA @ 24 VDC

Switch Contact Resistance

Allowable Solder Time

Switch Series

Initial, max.

End of life, max.

100 millohms

500 millohms

194

195

50 milliohms

100 milliohms

Up to 4 seconds with 260°C solder

Vibration

Insulation Resistance

No mechanical damage or changes of switch

settings during or after testing, when tested

in three mutually perpendicular planes at

10-50 Hz sweep or at 60 Hz constant vibration

1,000 megohms minimum across open switch

1,000 megohms minimum between adjacent

closed switches

Dielectric Strength

Shock

500 VAC minimum for 1 minute between adjacent

switches

No mechanical damage or changes of switch

settings with 25 G applied

Nonswitching Rating

Sealing

100 mA or 50 VDC

Bottom epoxy seal standard

Top tape seal optional

Switch Capacitance

5.0 pF maximum between adjacent switches

Marking

Special side or top marking available-consult CTS

Operating Temperature

–40°C to +85°C

Technical Data Sheet 4194/195

C T S C O R P O R A T I O N / M A N U F A C T U R E R O F R E L I A B L E E L E C T R O N I C C O M P O N E N T S

中文翻译

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