reed switch

Reed Switch: Ultra‑Compact, Wireless‑Enabled Sensor for Fast, Reliable Contact

Reed switches are miniature magnetic contact relays that change state when a magnetic field is applied to their internal core. With no moving pins and only a tiny ferrite reed, they offer lightning‑fast response, exceptional durability, and whisper‑quiet operation. Ideal for low‑power circuits, these switches enable instant detection of door opens, proximity alarms, and page‑triggered requests without the need for batteries or complex wiring.

The design incorporates a standard 30 VDC rating, a coil current of 5 mA, and a proven 10^7 contact cycle life, making it dependable for both consumer and industrial applications. The low contact resistance (≤10 mΩ) and small footprint (5 mm diameter shroud) reduce power consumption and simplify integration into compact PCB designs.

• Voltage Rating: 30 VDC
• Coil Current: 5 mA
• Contact Life: 10⁷ cycles, 250 mA rating
• Common Use Case: Door‑and‑window integrity monitoring, proximity triggers in HVAC controls, and high‑speed data collection in industrial sensor networks.