B–9

Dimensions are shown: mm

Specifications and dimensions subject to change

www.ck-components.com

Features/Benefits

KMR 2 Series

Microminiature SMT Top Actuated

Typical Applications

Electrical

Silver

Gold

MAXIMUM POWER:

1 VA

0.2 VA

MAXIMUM VOLTAGE:

32 VDC

32 VDC

MINIMUM VOLTAGE:

20 mVDC

20 mVDC

MAXIMUM CURRENT:

50 mA

10 mA

MINIMUM CURRENT:

1 mA*

1 mA*

DIELECTRIC STRENGTH:

≥ 250 Vrms

CONTACT RESISTANCE:

≤ 100 mΩ

INSULATION RESISTANCE:

≥ 1GΩ

BOUNCE TIME:

≤ 3 ms

*For ULC version minimum current is 1µA at 1.8 VDC

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

Infrared Reflow Soldering in accordance with IEC61760-1

Packaging

In reels of 7,000 pieces for KMR 2

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.

Specification

FUNCTION: momentary action

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

TERMINALS: Gullwing type for SMT

Mechanical

Total height

Actuation Force

K

M

R

N

G

2

3

1

Contact Material

Grounding option

Low Current capability

Part Number Description

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

KMR211 LFS

1.2 (120) ± 0.30

200 000

0.20 mm ± 0.1

KMR213 LFG

1.2 (120) ± 0.30

200 000

0.20 mm ± 0.1

KMR221 LFS

2.0 (200) ± 0.50

200 000

0.25 mm ± 0.1

KMR223G LFG

2.0 (200) ± 0.50

200 000

0.25 mm ± 0.1

KMR231 LFS

3.0 (300) ± 0.75

150 000

0.25 mm ± 0.1

KMR233G LFG

3.0 (300) ± 0.75

150 000

0.25 mm ± 0.1

KMR231 ULC LFS

3.0 (300) ± 0.75

150 000

0.25 mm ± 0.1

KMR232 LFS

3.0 (300) ± 0.75

300 000

0.25 mm ± 0.1

KMR232 ULC LFS

3.0 (300) ± 0.75

300 000

0.25 mm ± 0.1

KMR241 LFS

4.0 (400) ± 1.00

100 000

0.30 mm ± 0.1

KMR243G LFG

4.0 (400) ± 1.00

100 000

0.30 mm ± 0.1

KMR241 ULC LFS

4.0 (400) ± 1.00

100 000

0.30 mm ± 0.1

KMR242 LFS

4.0 (400) ± 1.00

200 000

0.30 mm ± 0.1

KMR242 ULC LFS

4.0 (400) ± 1.00

200 000

0.30 mm ± 0.1

Type G and NG

(except gold

version G only)

See description

below

Operating

force

N (grs)

Operating

life

(cycles)

Travel (mm)

TACTILE FEELING: for KMR 2 series:

≥ 30% (1.2N at 20%)

U

L

C

L

F

S

9 aug 12

B