Micro Switch DMS03
Compact 3A micro switch (DMS03) with 200,000-cycle mechanical life for low-power precision control in office equipment, appliances and instruments.

Order Support
- Typical production lead time: 20 working days
- Free samples — send us your express shipping account
- Technical documents checked for the requested model
- Pre-shipment inspection options can be agreed before ordering
- OEM and private-label requirements are reviewed case by case
Compact 3A micro switch (DMS03) with 200,000-cycle mechanical life for low-power precision control in office equipment, appliances and instruments.
Overview
The DMS03 is the precision-control option in the general-purpose range: 3(1)A at 125/250VAC or 1A 30VDC in a compact body, with a 200,000-operation mechanical life. Its 10,000-operation electrical life suits signal circuits and light loads rather than power switching — typical fits include vending controls, instruments and office equipment.
Key Features
- Compact body for tight mounting spaces
- 200,000-operation mechanical life
- 3(1)A 125/250VAC for precision control
- Multiple actuator shapes
- Gold-plated terminals optional
Technical Specifications
| Rated Values | 3(1)A 125/250VAC T85µ; 3A 125/250VAC T85µ; 1A 125/250VAC T85µ; 1A 30VDC T85µ |
| Contact Resistance | ≤50 mΩ (single switch, without wiring harness) |
| Insulation Resistance | ≥100 MΩ 500V DC |
| Withstanding Voltage | 600V AC 1min between terminals; 1000V AC 1min terminal-to-actuator |
| Electrical Life | 10,000 operations |
| Mechanical Life | 200,000 operations |
| Operating Temperature | -25°C to +85°C |
| Vibration Resistance | Frequency 55Hz, amplitude 1.5mm, duration 2 hours |
| Shock Resistance | Endurance 1000 m/s² (approx. 100G) max; malfunction 300 m/s² (approx. 30G) max |
| Electric Shock Protection Class | Class I |
| Ingress Protection (IP) Rating | — |
| Product Certification | — |
Selection Table & Outline Drawing


Typical Applications
- Office and commercial equipment
- Automobiles
- Vending machines
- Refrigerators and ice makers
- Sanitary ware and water heaters
- Air conditioners
- Outdoor equipment and instruments
Frequently Asked Questions
What loads can the DMS03 switch?
The DMS03 is rated 3A at 125/250VAC, suitable for low-power precision control in appliances and instruments.
How long does the DMS03 last?
Mechanical life is 200,000 operations and electrical life is 10,000 operations at rated load.
Is the DMS03 available with gold-plated terminals?
Yes, gold-plated terminal material is available as an option. Confirm the exact variant with your order.
Request Quotation
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