As the benchmark model of Yueqing Tongda Cable Power Plant's micro switch series, the HK-14 features "high sensitivity, ultra-long lifespan, and multi-scenario adaptability" as its core advantages. Integrating the company's 35 years of switch manufacturing expertise, it has become a key control component in household appliances, automotive electronics, industrial automation, and other fields, thanks to its minimal contact gap and rapid action mechanism. Its performance and reliability have been certified by multiple authoritative organizations worldwide, securing its mainstream position in the niche market.
Micro Switch Introduction
Millisecond-Precise Triggering: Utilizes a snap-action fast mechanism with a short travel of 0.5-1.6mm and adjustable operating force of 0.25-4N, providing rapid and delay-free response to effectively prevent "false triggers." Suitable for high-precision scenarios such as microwave oven door controls and industrial sensors.
Ultra-Durable Quality: High-conductivity alloy contacts paired with reinforced structure offer a mechanical lifespan exceeding 1 million cycles and an electrical lifespan of over 50,000 cycles. Ideal for long-term stable operation in high-frequency use environments like automotive electronics and power tools.
Wide Environmental Adaptability: Operates under a wide temperature range of -25℃ to 125℃, withstands high-frequency vibrations of 10-55Hz, features an insulation resistance ≥100MΩ, and terminal withstand voltage of 1000V AC. Reliable performance in harsh conditions such as industrial workshop vibrations and high temperatures in automobile engine compartments.
Micro Switch Parameter (Specification)
| Switch Technical Characteristics: | |||
| ITEM | Technical Parameter | Value | |
| 1 | Electrical Rating | 5(2)A/10A/16(3)A/21(8)A 250VAC | |
| 2 | Contact Resistance | ≤30mΩ Initial value | |
| 3 | Insulation Resistance | ≥100MΩ (500VDC) | |
| 4 |
Dielectric Voltage |
Between non-connected terminals |
1000V/0.5mA/60S |
|
Between terminals and the metal frame |
3000V/0.5mA/60S | ||
| 5 | Electrical Life | ≥50000 cycles | |
| 6 | Mechanical Life | ≥1000000 cycles | |
| 7 | Operating Temperature | -25~125℃ | |
| 8 | Operating Frequency |
electrical :15 cycles Mechanical :60 cycles |
|
| 9 | Vibration Proof |
Vibration Frequency : 10~55HZ; Amplitude :1.5mm; Three directions :1H |
|
| 10 |
Solder Ability : More than 80% of immersed part shall be covered with solder |
Soldering Temperature :235±5℃ Immersing Time :2~3S |
|
| 11 | Solder Heat Resistance |
Dip Soldering :260±5℃ 5±1S Manual Soldering : 300±5℃ 2~3S |
|
| 12 | Safety Approvals | UL、CSA、VDE、ENEC、TUV、CE、KC、CQC | |
| 13 | Test Conditions |
Ambient Temperature :20±5℃ Relative Humidity :65±5%RH Air Pressure :86~106KPa |
|
Micro Switch Feature and Application
Micro Switch Details


