The 7914 4 mm SMD & Through-hole Sealed Key Switch is a sealed key switch from Renesas. The switch is waterproof, dustproof and corrosion resistant, making it suitable for use in harsh environments.
The 7914 series is a 4 mm sealed key switch available in both surface‑mount (SMD) and through‑hole (THT) configurations. It offers a normally‑open contact with a 100 mA maximum current rating, 16 V maximum voltage, 100 mΩ contact resistance, and 100 MΩ insulation resistance. Mechanical data include a 300 ± 100 g actuator force, 2 kg minimum pushover strength, and a cycle life of 100,000 actuations. The switch is rated for operation from –55 °C to +125 °C and meets RoHS requirements.
Packaging options include reels (500 pcs/reel for J‑hook and gull‑wing styles, 200 pcs/reel for right‑angle) and tubes (50 pcs/tube). Detailed dimensions, recommended PCB layout, and reflow soldering profiles are provided to aid assembly and design integration. This manual is written in Chinese.
| Contact Rating (Maximum Current) | 100 mA max |
|---|---|
| Maximum Voltage | 16 V |
| Contact Resistance | 100 mΩ max |
| Insulation Resistance | 100 MΩ min |
| Dielectric Strength | 250 VAC |
| Operating Temperature Range | -55 °C to +125 °C |
| Seal Test Temperature | 85 °C |
| Vibration Rating | 20 G |
| Shock Rating | 100 G |
| Actuator Force | 300 ± 100 g |
| Pushover Strength (S Style) | 2 kg minimum |
| Cycle Life (loaded) | 100,000 actuations |
| Cover Material | Stainless steel |
| Base Material | Thermoplastic, UL94V‑0 |
| Terminal Material | Phosphor bronze |
| Dome Material | Stainless steel |
| Actuator Material | High temperature silicon rubber |
The switch is rated for a maximum current of 100 mA.
Packaging is offered as 500 pcs/reel for J‑hook and gull‑wing styles, 200 pcs/reel for right‑angle, and 50 pcs/tube for all styles.
Yes, the document states that the switch is RoHS compliant.
It operates from –55 °C up to +125 °C.