The N/O Reed Switch is a hermetically sealed magnetic induction switch featuring a 2x14mm glass body and normally open (N/O) contacts. This reliable sensor activates when exposed to a magnetic field from a permanent magnet or electromagnet, making it ideal for position sensing, proximity detection, and security applications.
| Parameter | Value |
|---|---|
| Contact Type | Normally Open (N/O) |
| Contact Form | 1A (SPST) |
| Body Dimensions | 2mm x 14mm |
| Glass Type | Hermetically Sealed |
| Contact Life | Up to 10³-10⁵ operations |
| Insulation Resistance | ≥100MΩ |
| Withstand Voltage | DC 200V |
| Contact Capability | 10W |
| Switching Voltage | ≤100V |
| Switching Current | ≤0.5A |
| Carry Current | ≤1.0A |
| Operate Time | ≤1.0ms |
| Release Time | ≤0.5ms |
| Operating Temp | -30°C to +80°C |
= Key Features =
Normally Open Contact - Contacts remain open until magnetic field is applied. Circuit closes when magnet approaches.
Hermetically Sealed Glass - Provides moisture and contamination protection for reliable operation in harsh environments.
Compact Size - 2x14mm glass body fits into tight spaces and miniature assemblies.
Low Power Consumption Passive component draws no power when idle ideal for battery-powered applications.
Fast Response - Operates and releases in milliseconds for quick detection cycles.
Versatile Applications - Suitable for position sensing, proximity detection, counting, and automation.
# Simple Switch Connection
| Reed Switch Wire | Connection |
|---|---|
| One Side | Signal Input (Digital Pin) |
| Other Side | GND |
> No polarity requirement - works in either direction
# Typical Arduino Configuration