Product Details Portlet

D2FS Ultra Subminiature Basic Switch

Simple Construction and High Reliability for Long Time

  • Developed for a few number of operations during a long period of use such as door-detection to avoid sabotage on meters.
  • Simple construction with a single-leaf movable spring realizes reasonable cost.
  • Self-clinching, right-angled and left-angled PCB terminals are also available.
Pin plunger
PCB terminals (Straight)D2FS-F-N
PCB terminals (Self-clinching)D2FS-F-N-T
PCB terminals (Right-angled)D2FS-F-N-A
PCB terminals (Left-angled)D2FS-F-N-A1
Hinge lever
PCB terminals (Straight)D2FS-FL-N
PCB terminals (Self-clinching)D2FS-FL-N-T
PCB terminals (Right-angled)D2FS-FL-N-A
PCB terminals (Left-angled)D2FS-FL-N-A1

Contact Form

Rated voltageResistive load
6 VDC0.1A
The ratings values apply under the following test conditions:
Ambient temperature: 20± 2º C
Ambient humidity: 65± 5%
Operating frequency: 20 operations/min

operating speed
Pin plunger models: 1 mm to 500 mm/s,
Lever models: 5 mm to 500 mm/s
operating frequency
Mechanical:Pin plunger models: 200 operations/min max,
Lever models: 100 operations/min max
Electrical:30 operations/min max.
Insulation resistance
100 MΩ min. (at 500 VDC)
Contact resistance (initial value)
100 mΩ max.
Dielectric Strength
Between terminals of same polarity600 VAC 50/60 Hz 1 min
Between current carrying
metal parts and ground
1,500 VAC 50/60 Hz 1 min
Between each terminal and non-current carrying metal part:
Vibration resistance
Malfunction *110 to 55 Hz, 1.5 mm double amplitude
Shock resistance
Destruction1,000 m/s2 max.
Malfunction *1300 m/s2 max.
Durability *2
Mechanical100,000 operations min. (at 30 ops./min.)
Electrical10,000 operations min. (at 30 ops./min.)
Degree of protection
Ambient operating temperature
-20ºC to +70ºC(at 60%RH Max.)(with no icing or condensation)
Ambient operating humidity
85% RH max. (for +5ºC to +35ºC)
Approx. 0.5 g(pin plunger models)
Note:The data given above are initial values.
 * 1.The values are at Free Position and Total Travel Position values for pin plunger, and Total Travel Position value for lever.
Close or open circuit of the contact is 1ms max.

* 2.For testing conditions, consult your OMRON sales representative.

The following illustrations and drawings are for D2FS models with PCB terminals (straight). Self-clinching, and right-angled, left angled terminals are omitted from the following drawings. Refer to the above for these terminals. When ordering, replace with the code for the terminal that you need. See the "List of Models" for available combinations of models.

Pin Plunger Models D2F:dimensions1
OF max.
RF min.
0.85 N {87 gf}
0.05 N {5 gf}
PT max.
OT min.
MD max.
0.5 mm
0.25 mm
0.12 mm
FP max.
7.5 mm

Hinge Lever Models
OF max.
RF min.
0.25 N {25 gf}
0.02 N {2 gf}
OT min.
MD max.
0.55 mm
0.5 mm
FP max.
11.5 mm

Note: 1. Unless otherwise specified, a tolerance of 0.4 mm applies to all dimensions.
2. The operating characteristics are for operation in the A direction ().



•When using automatic soldering baths, we recommend soldering at 260°C within 5 seconds. Make sure that the liquid surface of the solder does not flow over the edge of the board.
•When soldering terminals manually, perform soldering within 3 seconds at iron tip temperature not higher than 350°C. Do not apply any external force for at least 1 minute after soldering. When applying solder, keep the solder away from the case of the Switch and do not allow solder or flux to flow into the case.

●Side-actuated (Cam/Dog) Operation

•When using a cam or dog to operate the Switch, factors such as the operating speed, operating frequency, push-button indentation, and material and shape of the cam or dog will
affect the durability of the Switch. Confirm performance specifications under actual operating conditions before using the Switch in applications.

Correct Use


•When handling the Switch, ensure that uneven pressure or, as shown in the following diagram, pressure in a direction other than the operating direction is not applied to the Actuator, otherwise the Actuator or Switch may be damaged, or durability may be decreased.

●Using Micro Loads

•Even when using micro load models within the operating range, inrush currents or surges may decrease the life expectancy of the Switch. Therefore, insert a contact protection circuit where necessary.

●Application Environment

•Do not use the Switch in locations that are subject to toxic gas, silicon, excessive dust, excessive dirt, high temperatures, high humidity, sudden temperature changes, water splashes, or oil splashes.
Otherwise, damage resulting by faulty contact of the Switch contacts, corrosion, or other causes, or other functional faults may occur.