EJF SERIES
MICRO SWITCH
EJF SERIES

FEATURES

  • 1-piece spring mechanism design offering durable acute operation and nice touch feeling
  • Heavy/Light operation force specifications
  • High flux-tight structure
  • High solder reliability
  • RoHS Compliant

APPLICATIONS

  • Communication equipment
  • Security systems
  • Office automation appliances
  • General industrial machines

SPECIFICATIONS

Ratings

125VAC 3A; 125VAC 1A; 30VDC 0.05A

Circuit arrangement

Single pole Double throw (1c), snap action

Pitch between terminals

5.08mm

1.ELECTRICAL PERFORMANCE

Insulation resistance

100MΩ Min. at 500VDC

Dielectric strength

1000VAC Min. for 60sec

Initial contact resistance

100mΩ Max.

2.MECHANICAL PERFORMANCE

Operating Force (OF)
Release Force (RF)
Pre-travel (PT)
Operating Position (OP)
Free Position (FP)

see attached drawing

Vibration Resistance (Without lever)

10 to 55 Hz amplitude of 1.5mm

Terminal strength

1.2Kg(1 minute) in the direction of the axis of solder terminals

3.ENVIRONMENTAL

Ambient temperature

-25℃ ~ +65℃ (60%RH Max. with no icing)

Ambient humidity

+5℃ ~ +35℃ (85%RH Max.)

4.DURABILITY

Mechanical life

1,000,000 cycles Operations

Electrical life

30,000 cycles Operations

5.CORRECT USE

5-1.Terminal Connection:

When soldering a lead wire to the terminal, first insert the lead wire conductor into the terminal hole and then perform soldering.
Make sure that the capacity of the soldering iron is 30W maximum and that the temperature of the soldering iron tip is approximately 300°C. (350°C maximum) Complete the soldering within 3s.
Using a switch with improper soldering may result in abnormal heating, possibly resulting in burn.
Applying a soldering iron for more than 3s or using one that is rated at more than 30W may deteriorate the switch characteristics.
When soldering the lead wire to the PCB terminal, pay careful attention so that the flux and solder liquid level does not exceed the PCB level.
 
5-2.Operating Stroke Setting:

Take particular care in setting the operating stroke for the pin plunger models. Make sure that the operating stroke is 70% to 100% of the rated OT distance. Do not operate the actuator exceeding the OT distance, otherwise the durability of the Switch may be shortened.

PART NUMBERING SYSTEM

  EJF-1 1 1 1 0 X X
   |  | | | | | | |
   |  | | | | | | +--- Special Number 2
   |  | | | | | +--- Special Number 1:
   |  | | | | |      1:Tropical Version
   |  | | | | +--- Package Form:
   |  | | | |      0:Tray
   |  | | | +--- Terminal Form:
   |  | | |      1:Straight Type
   |  | | |      2:Self-Standing Type
   |  | | |      3:Right-Angle Type
   |  | | |      4:Left-Angle Type
   |  | | |      5:Solder Type
   |  | | +--- Actuator Type:
   |  | |      1:Pin Plunger
   |  | |      2:Straight Lever
   |  | |      3:Roller Lever
   |  | |      4:Simulated Roller Lever
   |  | |      5:Bend Lever
   |  | |      6:Long Straight Lever
   |  | +--- Contact Rating Form:
   |  |      1:1A/125VAC
   |  |      2:3A/125VAC
   |  |      3:0.05A/30VDC
   |  +--- Operation Force:
   |       1:Low-Operation Force
   |       2:Standard-Operation Force
   |       *Low-OF not Available on 3A/125VAC
   +--- Series Name:
        EJF:J Type Micro Switch, Ultra Miniature

Terminal Form
1

Straight Type

 2

Self-Standing Type
3 Right-Angle Type 4 Left-Angle Type
5 Solder Type      
Actuator Type
1

Pin Plunger

 2 Straight Lever
3

Roller Lever

 4 Simulated Roller Lever
5

Bend Lever

 6 Long straight Lever

DIMENSIONS