As a representative product of Yueqing Tongda Cable Power Plant that embodies the integration of core standardization and customization, the HK-04G-L switch is designed with the core principles of "stability, reliability, and scene compatibility." It incorporates 35 years of the company's switch manufacturing expertise, achieving multiple optimizations in electrical performance, protection levels, and user experience. The switch is widely applicable to scenarios such as smart home power distribution, industrial auxiliary equipment, and small medical instruments, making it a preferred circuit control component that balances universality with customization potential.
Micro Switch Introduction
The HK-04G-L switch fully adheres to Yueqing Tongda's "Three-Layer Quality Control System": Raw material stage. Each batch of silver-tin alloy contacts must undergo spectral component testing, and the casing must pass a 72-hour aging resistance test. Production stage, Relying on fully automated assembly lines, precise component fitting is achieved, with dimensional errors controlled within 0.02mm. Finished product stage: 100% of products undergo push-button lifespan testing, high and low-temperature cycling tests (-40°C to 85°C), and insulation resistance testing (≥100MΩ), maintaining a 100% factory pass rate.At the same time, the product enjoys a unified one-year warranty service from the company. If non-human-caused faults occur during use, customers can receive free replacement and technical support. Currently, the HK-04G-L switch has an annual sales volume of over 200,000 units. In addition to the domestic market, it is also exported to Europe and Southeast Asia with UL and VDE certifications, becoming a representative model of Yueqing Tongda's standardized products that combines both reputation and market competitiveness.Whether for basic circuit control requirements or mild customization scenarios, the HK-04G-L switch, with "stable performance and flexible adaptation" as its core, demonstrates Yueqing Tongda's technical strength in switch manufacturing and provides reliable circuit control support for equipment across various industries.
Micro Switch Application
In basic general scenarios, the HK-04G-L switch can be directly applied to smart home distribution boxes, small industrial fans, and auxiliary power supply devices for medical monitors, meeting circuit on/off control requirements without additional modifications. It has already become a standard component for Midea's smart home sub-brand and domestic small medical device manufacturers.
For special requirements, this product also has customization potential. Yueqing Tongda can customize based on the basic HK-04G-L model for clients, such as LED status indicator lights (supporting red-green dual-color switching to indicate circuit on/off status), anti-mistouch locking structures (suitable for child contact scenarios), and low-power standby versions (standby power consumption ≤3μA, suitable for wireless control devices). Previously, the "HK-04G-L with light" version customized for a smart home company used visual light design to help users quickly troubleshoot circuit issues, reducing product failure rates by 30%.
Micro Switch Specification
Switch Technical Characteristics: | |||
ITEM | Technical Parameter | Value | |
1 | Electrical Rating | 5(2)A 125V/250VAC 10(3)125V/250VAC | |
2 | Contact Resistance | ≤50mΩ Initial value | |
3 | Insulation Resistance | ≥100MΩ (500VDC) | |
4 |
Dielectric Voltage |
Between non-connected terminals |
500V/0.5mA/60S |
Between terminals and the metal frame |
1500V/0.5mA/60S | ||
5 | Electrical Life | ≥10000 cycles | |
6 | Mechanical Life | ≥100000 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、CE | |
13 | Test Conditions |
Ambient Temperature :20±5℃ Relative Humidity :65±5%RH Air Pressure : 86~106KPa |
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