SPECIFICATIONS

51W FormC Series

The 51W FormC Series consists of a mercury switch and operates

without switch bounsing. This series is suitable for applications

requiring stable contact resistance and high carry current capacity.

The dielectric strength between contacts is rated 1KV as a standard

catalog item, and ideal for applications requiring a higher degree of

dielectric strength. We also provide a wide range of support to high

-load environment.

The switch configuration shown here is Form C.

PRODUCT DESCRIPTIONS

PCB Mount

51W FormC Series

51W-1C□□N0

51W-2C□□N0

Wetted Mercury

Parameters

Units

1 Form C

2 Form C

Test Conditions

Coil Specifications

Nominal Coil Voltage

Coil Resistance

Operate Voltage

Release Voltage

VDC

Ω

VDC Max

VDC Min

5.0

100

4.0

0.7

12.0

400

9.6

1.2

24.0

1600

19.2

2.4

5.0

80

4.0

0.7

12.0

300

9.6

1.2

±10% @ 20˚C

15˚C to 35˚C

15˚C to 35˚C

Contact Ratings

Switching Voltage

Switching Current

Carry Current

Contact Rating

Life Expectancy

Contact Resistance

Contact Resistance Stability

Volts

Amps

Amps

Watts

mΩ

mΩ

350

1.0

2.0

50

1000

100

2.0

Max DC/Peak AC resistance

Max DC/Peak AC resistance

Max DC/Peak AC resistance

Max DC/Peak AC resistance

@ 1V 10mA

Max initial @ operate voltage

Max initial @ operate voltage

Relay Specifications

Insulation Resistance

Dielectric Strength

Operate Time

(No Bounce)

Release Time

Ω Min

VDC Min

VDC Min

VDC Min

msec Max

msec Max

1000

3.0

3.0

Between all isolated pins

@ 500V 20˚C 40%RH

Between contacts

Contacts to shield

Contacts/Shield to coil

@ nominal coil voltage

50Hz square wave

Diode suppression

Environmental Ratings

Measurement Reference Conditions

Temp: 15˚C to 35˚C

Humidity: 25% to 75%RH

Atmospheric Pressure: 860 to 1060hpa

Storage temp: -20˚C to +80˚C

Operate temp: -10˚C to +60˚C

Vibration: 20G’s to 2000Hz

Shock: 50G’s

Ordering Code:

=1 (5.0VDC), 2 (12.0VDC), 3 (24.0VDC)

=0 (No shield)

*

, 1 (Electrostatic)

=1 (5.0VDC), 2 (12.0VDC)

=0 (No shield)

*

, 1 (Electrostatic)