C&K E020 series sealed snap-acting momentary pushbutton switches have the following features: waterproof, oil-resistant, long life, snap-fitting plunger available, RoHS compliant models available, widely used in instrumentation, telecommunications and networking equipment, computers and peripherals
The E020 Series from C&K offers sealed snap‑acting momentary pushbutton switches designed for process‑sealed, splash‑proof applications such as instrumentation, telecommunications, networking equipment, and computers. Features include long‑life contacts, RoHS‑compliant models, and a variety of plunger and terminal options.
The leaflet lists detailed electrical and mechanical specifications, material constructions, and part numbers for different configurations. It also includes ordering guidance, RoHS compliance notes, and options for panel inserts with LED indicators.
| Contact rating | 0.4 VA max @ 20 V AC/DC (EX25) or 1 A @ 120 V AC / 28 V DC (EX21) |
|---|---|
| Electrical life | 60,000 make‑and‑break cycles at full load |
| Contact resistance | Below 50 mΩ typical at 2‑4 V DC, 100 mA |
| Dielectric strength | ≥1000 Vrms min. at sea level |
| Operating temperature | -30 °C to 75 °C |
| Cap installation force | 10 lbs max permissible |
| Solderability | Per MIL‑STD‑202F method 208D or EIA RS‑186E method 9 |
The switches are rated for 60,000 make‑and‑break cycles at full load.
Yes, any models supplied with P, R, B or G contact material are RoHS compliant.
The case and bushing are made of glass‑filled nylon 6/6, flame‑retardant (UL 94V‑0).