MK33-66 Series Surface-mount Reed Switch
The MK33-66 Series is an ultra-miniature, automotive-grade SPST-NO (Form A) reed switch designed for surface mount applications. Engineered with a unique barrel lead design, it offers enhanced stability, coplanarity, and solderability—making it ideal for high-volume, automated PCB assembly.
With a glass body length of 14 mm and diameter of 2.2 mm, the MK33-66 delivers reliable switching performance in a compact footprint. Its low-profile construction and self-aligning leads allow for precise placement in tight PCB layouts, including ladder arrays for multi-point sensing. The switch is capable of handling up to 200 VDC, 0.5 A, and 10 W, and is supplied in Tape & Reel packaging per IEC 60286-3 standards.
- Compact & Low Profile: Fits tight PCB layouts and ladder arrays
- Automated Assembly Ready: Self-aligning leads for pick-and-place efficiency
- Robust & Reliable: Hermetically sealed for long-term durability
- Versatile Use: Suitable across multiple industries and environments
- Packaging: Tape & Reel (IEC 60286-3)
- Design: Bare glass construction with barrel leads for optimal coplanarity and solderability
| Rated Power Max. | 10W/200VDC/0.5A |
| Contact Form | 1A (SPST) Normally Open (N.O.) |
| Operating Range | 10-60 AT |
- Industrial Automation: Fluid level sensors, metering systems
- Transportation: Automotive-grade reliability for harsh environments
- Alarm & Security: Smoke detectors, fire alarms, intrusion sensors
- Smart Home Devices: Battery-powered door/window sensors, water level monitoring
- Medical Equipment: Compact sensing in diagnostic and monitoring devices
- Test & Measurement (ATE): Precision switching in compact test setups
- Telecommunications: Signal routing and proximity detection
- Battery-Powered Devices: Low power consumption ideal for wireless systems