B–43

Dimensions are shown: Inch (mm)

Specifications and dimensions subject to change

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B

KST Series

Long Travel Tact Switch for SMT

How To Order

Our easy build-a-switch concept allows you to mix and match options to create the switch you need. To order, select

desired option from each category and and place it in the appropriate box.

However, please note that all the combinations of these options are not feasible.

For any part number different from those listed above, please consult your local representative.

Packaging

Switches are delivered on continuous tape and reels of 1,000 pieces,

330 (12.992) external diameter. Other dimensions according to

EIA-RS-481 standard.

Specification

FUNCTION: Momentary

CONTACT ARRANGEMENT: 1 make contact = SPST N.O.

TERMINALS: J Bend or Gullwing type for SMT

Mechanical

MAXIMUM APPLIED FORCE: 40 N (400 grams)

Electrical

Silver

Gold

SWITCHING POWER MAX.:

1.0 VA

0.50 VA

MAXIMUM POWER:

1.0 VA

0.2 VA

MAXIMUM VOLTAGE:

32 VDC

32 VDC

MINIMUM VOLTAGE:

20 mV

20 mV

MAXIMUM CURRENT:

50 mA

10 mA

MINIMUM CURRENT:

1 mA

1 mA

DIELECTRIC STRENGTH:

≥

250 Vrms

CONTACT RESISTANCE: < 100m

Ω

INSULATION RESISTANCE: Initial measurement:

≥

1G

Ω

After damp heat:

≥

10M

Ω

BOUNCE TIME: < 5 ms

Environmental

OPERATING TEMPERATURE:

-40˚C to +85˚C (Silver)

-40˚C to +125˚C (Gold)

STORAGE TEMPERATURE:

-40˚C to +85˚C (Silver)

-40˚C to +125˚C (Gold)

Process

Compatible with the lead free reflow soldering process.

NOTE: Specifications listed above are for switches with standard options.

For information on specific and custom switches, consult Customer Service Center.

Features/Benefits

machines

Typical Applications

Operating force

Operating life

Travel to

Type

Fa N (grams)±30%

(operations)

make

KST221G / J

1,6-3,2

100,000

1,3+0,3/-0.2

KST241G / J

2,45-4,55

100,000

1,3+0,3/-0.2

Actuator

Actuation Force

K

S

T

2

Contact Material

Termination