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High-precision Switch


High-precision Switch for Detecting Micron-unit Displacement


Item Electrical ratings
Contact output models M5, M8, M16 Type: 10 mA at 24 VAC, 10 mA at 12 VDC
Solid-state output models 100 mA at 5 to 24 VDC ± 10%
Leakage current: 0.15 mA max.
Residual voltage: 3 V max.
Power consumption: 3 mW max.


Degree of protection D5A-1[], D5A-2[]: IP40
Other than the above models: IP67
Repeat accuracy *1 M5 (D5A-1[][][] series), M8, slim type:1 μm max.
M5 (D5A-2[][][] series), M16, limit type:3 μm max.
Durability *2 Mechanical 10,000,000 operations min.
Electrical 1,000,000 operation min. (Contact output models: 24 VAC, 10 mA, resistive load,
Solid-state output models: 24 VAC, 100 mA, resistive load)
Deviation in electrical durability
after 1,000,000 operations
M5, M8, M16, slim type: 10 μm max.
Limit type: 20 μm max.
Operating speed 1 μm/s to 0.5 m/s
Rated frequency 50/60 Hz
Insulation resistance 100 MΩ min. (at 250 VDC) between each terminal and non-current-carrying metal part
Contact resistance
(Initial value) *4
800 mΩ max. (initial) with 1 m cable,
2.4 Ω max. (initial) with 3 m cable,
4 Ω max. (initial) with 5 m cable
Dielectric strength 1,000 VAC, 50/60 Hz for 1 min between each terminal and non-current-carrying metal part
Malfunction 10 to 55 Hz, 1.5-mm double amplitude
Mechanical 1,000 m/s2 max.
Malfunction 300 m/s2 max.
Temperature coefficient *3 M5, M8, slim type: ± 20 × 10-6/ ° C max.
M16 type: ± 40 × 10-6/ ° C max.
Limit type: ± 50 × 10-6/ ° C max.
Ambient operating temperature -20°C to +75°C (with no icing)
Ambient operating humidity 35% to 85% RH (35% to 95% RH with the seal rubber)

Note: The above figures are initial values.
*1. Contact your OMRON sales representative for measurement conditions of the repeat accuracy.
*2. Durability values are calculated at an operating temperature of +5°C to +35°C, and an operating humidity of 40% to
       70%RH. Contact your OMRON sales representative for more detailed information on other operating environments.
*3. The value indicates the operating position change rate for a change of 1°C in the ambient temperature. The
       specifications depend on the model.
       Contact your OMRON sales representative for details.
*4. Values for contact output models.