B–23

Dimensions are shown: Inch (mm)

Specifications and dimensions subject to change

www.ck-components.com

B

KSC Series

Sealed 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 place it in the appropriate box.

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

Features/Benefits

Mechanical

Specification

FUNCTION: Momentary action

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

TERMINALS: J bend & Gullwing type for SMT

A detect switch version is available KSC4D1J and KSC4D1G.

Please see Detect chapter.

KSC vertical series have an IP40 sealing level.

Actuator

K

S

C

Operating Force

(160 grams)/(170 grams)

(300 grams)/(400 grams)

(450 grams)/(800 grams)

Contact Material

Operating life

Termination

(available in KSC421V)

Operating

Operating

Type

force FA

life

Travel

(Newtons)

(operations)

(mm)

Min/Max

KSC121J

1.2 / 2.5

200,000

0.3 ± 0.15

KSC141J

2.25 / 3.75

200,000

0.3 ± 0.15

KSC151J

4.1 / 6.9

100,000

0.35 ± 0.15

KSC201J

0.9 / 2.0

300,000

0.3 +0.2 /-0.15

KSC221J

1.5 / 2.5

500,000

0.35 +0.3 /-0.1

KSC222J

1.5 / 2.5

1,000,000

0.35 +0.3 /-0.1

KSC241J

2.6 / 4.4

300,000

0.5 ± 0.2

KSC251J

4.1 / 7.0

300,000

0.5 ± 0.2

KSC321J

1.6 / 2.4

300,000

0.2 +0.3 /0

KSC341J

2.25 / 3.75

300,000

0.2 +0.3 /0

KSC351J

4.0 / 6.0

100,000

0.25 +0.3 /0

KSC401J 50SH

0.82 / 1.38

1,000,000

0.3 ± 0.15

KSC411J 70SH

1.05 / 1.75

1,000,000

0.35 ± 0.20

KSC421J 70SH

1.25 / 2.12

300,000

0.5 ± 0.25

KSC422J 70SH

1.25 / 2.12

1,000,000

0.5 ± 0.25

KSC441J 70SH

3.0 / 5.0

300,000

0.75 ± 0.25

KSC442J 70SH

3.0 / 5.0

1,000,000

0.75 ± 0.25

KSC621J

1.0 / 1.65

300,000

0.5 ± 0.2

KSC641J

2.25 / 3.75

300,000

0.5 ± 0.2

KSC421V

1.4 / 2.2

300,000

0.375 ± 0.225

KSC721 J

1.7 / 2.8

300,000

0.3 ± 0.15

KSC741J

2.9 / 4.9

300,000

0.4 ± 0.20

Typical Applications

Electrical

Silver

Gold

MAXIMUM POWER:

1 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 (50 Hz, 1 min.): 250 V

CONTACT RESISTANCE: < 100 m

Ω

Ω

BOUNCE TIME: < 1 ms

Environmental

Silver

Gold

OPERATING TEMPERATURE:

-40˚C to 85˚C

-40˚C to 125˚C

STORAGE TEMPERATURE:

-55˚C to 85˚C

-55˚C to 125˚C

Process

SOLDERING: Depending on the application, this component is

suited to the following methods:

– Terminals being silver or gold plated over a nickel barrier, the

use of slightly activated flux is suitable.

– Soldering on double wave machine for vertical versions:

soldering time < 5 sec.

– Cleaning according to typical washing processes.

– Infrared Reflow Soldering in accordance with IEC 61760-1.

Packaging

KSC1, KSC2 and KSC3 are delivered on continuous tape and reels of

2,000 pieces, KSC4 in reels of 1,000 pieces. KSC 6 in reels of 750

pieces. KSC7 in reels of 1,000 pieces. KSCV in boxes of 500 pieces.

Dimensions of reels according to EIA RS481 or IEC 2863. External

diameter 330 mm ± 2 mm.

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

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

Other versions in terms of force, termination length and corrosion protection available.

Please contact your sales representative.

This data sheet does not provide enough information for applications which require a

certain level of quality or safety such as automotive, medical systems, safety equipment.

Please contact your sales representative to get contractual specification package.

*

See Mechanical chart above to confirm specifications.

**

Applies to KSC401J50SH only.

*** Applies to KSC 411J70SH, KSC421J70SH,KSC441J70SH

**** KSC7 offered with blue actuator as standard

S

H

Rubber Hardness Indication