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Model Description
Kofu lead switch
・ World's largest production volume> 500m/y
・ The most wide -range product group 7-21mm
・ In the industry's highest quality/long life
・ Appropriate for high reliability vehicles & ATE
・ Satisfied with high voltage/destructive voltage request
You can search for other models from each index. The displayed value is the value of the currently selected part number.
Dimension MM (inch) unit
A-full length
34.5 (1.358) | KSK-1A04
35.8 (1.410) | KSK-1A80
12.3 (0.484) ~ 13.35 (0.525) | MK23-80 (SMD)
54 (2.125) | GP400
35.7 (1.405) | KSK-1A87
14.9 (0.586) to 16.6 (0.653) | MK23-87 (SMD)
34.5 (1.358) | KSK-1A35
15.75 (0.620) -19.9 (0.775) | MK23-35 (SMD)
34.5 (1.358) | KSK-1A35/1
41.0 (1.614) | KSK-1A31
44.3 (1.744) | KSK-1A46
16.9 (0.665) to 18.55 (0.730) | MK23-46 (SMD)
54 (2.125) | GR501
44.3 (1.744) | KSK-1A66
44.3 (1.744) | KSK-1E66
44.3 (1.744) | KSK-1A66/3
18.8 (0.740) to 20.55 (0.809) | MK23-66 (SMD)
55.1 (2.169) | KSK-1b90U
55.1 (2.169) | KSK-1C90U
54.5 (2.145) | KSK-1C90F
24.9 (0.980) to 25.9 (1.019) | MK23-90 (SMD)
54 (2.125) | GR560
54 (2.125) | PR560
44.1 (1.736) | KSK-1A55
44.1 (1.736) | KSK-1A82
54 (2.125) | GR100
54 (2.125) | NL126
54 (2.125) | PR126
55 (2.165) | KSK-1A53
55.4 (2.181) | KSK-1A52
Dimension MM (inch) unit
B-Glass Manager MAX
3.95 (0.155) | KSK-1A04
7.0 (0.275) | KSK-1A80
7.0 (0.275) | MK23-80 (SMD)
10.0 (0.393) | GP400
10.0 (0.393) | KSK-1A87
10.0 (0.393) | MK23-87 (SMD)
10.5 (0.413) | KSK-1A35
10.5 (0.413) | MK23-35 (SMD)
10.5 (0.413) | KSK-1A35/1
11.0 (0.433) | KSK-1A31
12.0 (0.472) | KSK-1A46
12.0 (0.472) | MK23-46 (SMD)
12.7 (0.5) | GR501
14.0 (0.551) | KSK-1A66
14.0 (0.551) | KSK-1E66
14.0 (0.551) | KSK-1A66/3
14.0 (0.551) | MK23-66 (SMD)
14.0 (0.551) | KSK-1b90U
14.0 (0.551) | KSK-1C90U
14.0 (0.551) | KSK-1C90F
14.0 (0.551) | MK23-90 (SMD)
14.2 (0.559) | GR560
14.2 (0.559) | PR560
16.5 (0.649) | KSK-1A55
16.5 (0.649) | KSK-1A82
20.3 (0.799) | GR100
20.3 (0.799) | NL126
20.3 (0.799) | PR126
20.5 (0.807) | KSK-1A53
21.0 (0.826) | KSK-1A52
Dimension MM (inch) unit
C -Glass pipe diameter MAX
1.5 (0.059) | KSK-1A04
1.8 (0.070) | KSK-1A80
1.8 (0.070) | MK23-80 (SMD)
1.9 (0.075) | GP400
2.0 (0.078) | KSK-1A87
2.0 (0.078) | MK23-87 (SMD)
2.1 (0.082) | KSK-1A35
2.1 (0.082) | MK23-35 (SMD)
2.1 (0.082) | KSK-1A35/1
2.5 (0.098) | KSK-1A31
2.0 (0.078) | KSK-1A46
2.0 (0.078) | MK23-46 (SMD)
2.3 (0.090) | GR501
2.2 (0.086) | KSK-1A66
2.2 (0.086) | KSK-1E66
2.2 (0.086) | KSK-1A66/3
2.2 (0.086) | MK23-66 (SMD)
2.54 (0.1) | KSK-1b90U
2.54 (0.1) | KSK-1C90U
2.54 (0.1) | KSK-1C90F
2.54 (0.1) | MK23-90 (SMD)
2.3 (0.090) | GR560
2.3 (0.090) | PR560
2.8 (0.110) | KSK-1A55
2.8 (0.110) | KSK-1A82
2.5 (0.098) | GR100
2.5 (0.098) | NL126
2.5 (0.098) | PR126
2.8 (0.110) | KSK-1A53
2.75 (0.108) | KSK-1A52
Dimension MM (inch) unit
D-lead wire diameter
0.8 (0.031) x 0.15 (0.006) MAX | KSK-1A04
X 0.3 (0.011) | KSK-1A80
0.3 (0.011) | MK23-80 (SMD)
0.43 (0.017) | GP400
0.4 (0.015) | KSK-1A87
0.4 (0.015) | MK23-87 (SMD)
1.2 (0.047) x 0.2 (0.008) | KSK-1A35
1.2 (0.047) x 0.2 (0.008) | MK23-35 (SMD)
1.2 (0.047) x 0.2 (0.008) | KSK-1A35/1
0.5 (0.019) | KSK-1A31
0.5 (0.019) | KSK-1A46
0.5 (0.019) | MK23-46 (SMD)
0.45 (0.017) | GR501
0.5 (0.019) | KSK-1A66
0.5 (0.019) | KSK-1E66
0.5 (0.019) | KSK-1A66/3
0.5 (0.019) | MK23-66 (SMD)
0.5 (0.019) | KSK-1b90U
0.5 (0.019) | KSK-1C90U
0.5 (0.019) | KSK-1C90F
0.5 (0.019) | MK23-90 (SMD)
0.6 (0.023) | GR560
0.6 (0.023) | PR560
0.6 (0.023) | KSK-1A55
0.6 (0.023) | KSK-1A82
0.6 (0.023) | GR100
0.7 (0.027) | NL126
0.7 (0.027) | PR126
0.6 (0.023) | KSK-1A53
0.6 (0.023) | KSK-1A52
Impressive value range
5-30 at | KSK-1A04
10-40 at | KSK-1A80
10-40 at | MK23-80 (SMD)
7-30 at | GP400
10-40 at | KSK-1A87
10-40 at | MK23-87 (SMD)
10-40 at | KSK-1A35
10-30 at | MK23-35 (SMD)
10-40 at | KSK-1A35/1
10-40 at | KSK-1A31
10-40 at | KSK-1A46
10-40 at | MK23-46 (SMD)
10-35 at | GR501
10-40 at | KSK-1A66
30-40 at | KSK-1E66
10-40 at | KSK-1A66/3
10-40 at | MK23-66 (SMD)
15-45 AT | KSK-1b90U
15-45 AT | KSK-1C90U
15-45 AT | KSK-1C90F
15-45 AT | MK23-90 (SMD)
10-50 at | GR560
20-40 at | PR560
15-60 at | KSK-1A55
30-40 at | KSK-1A82
10-40 at | GR100
20-50 AT | NL126
20-50 AT | PR126
- | KSK-1A53
15-70 at | KSK-1A52
Opening and closing current
0.3A DC | KSK-1A04
0.5A DC | KSK-1A80
0.5A DC | MK23-80 (SMD)
0.5A DC/AC | GP400
0.4a DC | KSK-1A87
0.4a DC | MK23-87 (SMD)
1A DC | KSK-1A35
1A DC | MK23-35 (SMD)
2.0A DC | KSK-1A35/1
2.0A DC | KSK-1A31
0.5A DC | KSK-1A46
0.5A DC | MK23-46 (SMD)
0.5A DC/AC | GR501
0.5A DC | KSK-1A66
0.5A DC | KSK-1E66
0.5A DC | KSK-1A66/3
0.5A DC | MK23-66 (SMD)
0.5A DC | KSK-1b90U
0.5A DC | KSK-1C90U
0.5A DC | KSK-1C90F
0.5A DC | MK23-90 (SMD)
1.0A DC/AC | GR560
1.0A DC/AC | PR560
0.5A DC | KSK-1A55
2.0A DC | KSK-1A82
1.0A DC | GR100
1.5A DC/AC | NL126
1.5A DC/AC | PR126
1.0A DC | KSK-1A53
0.5A DC | KSK-1A52
Opening and closing voltage
30VDC | KSK-1A04
170VDC | KSK-1A80
170VDC | MK23-80 (SMD)
180VDC | GP400
200VDC | KSK-1A87
200VDC | MK23-87 (SMD)
200VDC | KSK-1A35
200VDC | MK23-35 (SMD)
500VDC | KSK-1A35/1
500VDC | KSK-1A31
200VDC | KSK-1A46
200VDC | MK23-46 (SMD)
200VDC | GR501
180VDC | KSK-1A66
100VDC | KSK-1E66
200VDC | KSK-1A66/3
180VDC | MK23-66 (SMD)
175VDC | KSK-1b90U
175VDC | KSK-1C90U
175VDC | KSK-1C90F
175VDC | MK23-90 (SMD)
200VDC | GR560
100VDC/250VAC | PR560
100VDC | KSK-1A55
150VDC | KSK-1A82
100VDC/150VAC | GR100
200VDC/150VAC | NL126
300VAC/200VDC | PR126
200VDC | KSK-1A53
350VDC | KSK-1A52
Rated power MAX
3W | KSK-1A04
10W | KSK-1A80
10W | MK23-80 (SMD)
10W | GP400
10W | KSK-1A87
10W | MK23-87 (SMD)
20W | KSK-1A35
20W | MK23-35 (SMD)
50W | KSK-1A35/1
50W | KSK-1A31
10W | KSK-1A46
10W | MK23-46 (SMD)
10W | GR501
10W | KSK-1A66
10W | KSK-1E66
10W | KSK-1A66/3
10W | MK23-66 (SMD)
10W | KSK-1b90U
10W | KSK-1C90U
10W | KSK-1C90F
10W | MK23-90 (SMD)
10W | GR560
10W | PR560
50W | KSK-1A55
120W | KSK-1A82
10W | GR100
50W | NL126
70W | PR126
10W | KSK-1A53
50W | KSK-1A52
UL certified NRNT2/8.E156887
◯ | KSK-1A04
◯ | KSK-1A80
◯ | MK23-80 (SMD)
◯ | GP400
◯ | KSK-1A87
◯ | MK23-87 (SMD)
◯ | KSK-1A35
◯ | MK23-35 (SMD)
◯ | KSK-1A35/1
◯ | KSK-1A31
◯ | KSK-1A46
◯ | MK23-46 (SMD)
◯ | GR501
◯ | KSK-1A66
◯ | KSK-1E66
◯ | KSK-1A66/3
◯ | MK23-66 (SMD)
◯ | KSK-1b90U
◯ | KSK-1C90U
◯ | KSK-1C90F
◯ | MK23-90 (SMD)
◯ | GR560
◯ | PR560
◯ | KSK-1A55
◯ | KSK-1A82
◯ | GR100
◯ | NL126
◯ | PR126
◯ | KSK-1A53
◯ | KSK-1A52
specification
Form A | KSK-1A04
Form A | KSK-1A80
Form A | MK23-80 (SMD)
Form A | GP400
Form A | KSK-1A87
Form A | MK23-87 (SMD)
Form A | KSK-1A35
Form A | MK23-35 (SMD)
Form A | KSK-1A35/1
Form A | KSK-1A31
Form A | KSK-1A46
Form A | MK23-46 (SMD)
Form A | GR501
Form A | KSK-1A66
Form E | KSK-1E66
Form A | KSK-1A66/3
Form A | MK23-66 (SMD)
Form B | KSK-1b90U
Form C | KSK-1C90U
Form C | KSK-1C90F
Form C | MK23-90 (SMD)
Form A | GR560
Form A | PR560
Form A | KSK-1A55
Form A | KSK-1A82
Form A | GR100
Form A | NL126
Form A | PR126
Form A | KSK-1A53
Form A | KSK-1A52
High power
◯ | KSK-1A35/1
◯ | KSK-1A55
◯ | KSK-1A82
◯ | NL126
◯ | PR126
◯ | KSK-1A52
Normal crosse
◯ | KSK-1b90U
SPDT switching
◯ | KSK-1C90U
◯ | KSK-1C90F
◯ | MK23-90 (SMD)
High -frequency
◯ | KSK-1A53
See all 58 models in list
