Technical Parameters
| Specification | |
| Operating Temperature | -25°C to +55°C (no freezing) |
| Operating Humidity | 45–85% RH |
| Contact Resistance | ≤50 mΩ |
| Insulation Resistance | >1000 MΩ |
| Maximum Withstand Voltage | 1890 VAC/50 Hz/60 s |
| Vibration Resistance | Amplitude approx. 1.0 mm/50 Hz |
| Shock Resistance | >10 g |
| Solder Heat Resistance | At 320°C (or with a 30-watt soldering iron) for no more than 3 seconds |
| Electrical Life | ≥200,000 cycles |
The YJ139-LA38 Series is a the operating mechanism is secured to the center housing with screws, making it resistant to impact, drops, and vibration, and suitable for use
Product Advantage
Made from high-quality flame-retardant engineering materials, it offers excellent insulation and reliable contact;
the product complies with standards such as IEC 60947-5-1 and GB 14048.5.
The switch elements feature a self-cleaning, flat-press, snap-action mechanism;
the switch bases can be assembled in a modular, building-block style, with each base capable of accommodating two switch elements. Up to eight switch elements can be combined as required to meet the needs of various specific control circuits.
Mounting hole diameter: Φ22 mm
Functions: Reset buttons, latching buttons, illuminated buttons, rotary knobs,
key switches, emergency stop buttons, mushroom-head buttons.
Switch contact configurations: 1NO 1NC / 2NO / 2NC / 1NO / 1NC
Product Uses
Medical equipment, industrial equipment