KSK-1A87 Series Reed Switch
The KSK-1A87 Series is a miniature, long-life reed switch designed for precision switching in compact and demanding environments. With a glass body length of 10.0 mm and diameter of 2.0 mm, this SPST-NO (Form A) switch supports switching voltages up to 200 VDC, currents up to 0.5 A, and a rated power of 10 W.
Its hermetically sealed construction ensures consistent performance in harsh conditions, while a wide operate range (10–40 AT) allows for flexible magnetic actuation. The KSK-1A87 is ideal for general-purpose, automotive, and test & measurement applications, offering high reliability and fast response times.
Standards and Certifications
- Miniature form factor ideal for space-constrained designs
- Hermetically sealed glass body for protection against moisture and contaminants
- Fast switching performance with operating time as low as 0.6 ms
- Wide operating temperature range from –40°C to +130°C
- Shock and vibration resistant for rugged environments
- UL-approved for compliance in regulated applications
| Overall Length mm (inches) | 35.5 (1.397) |
| Glass Length Max. mm (inches) | 10.0 (0.394) |
| Glass Dia. Max. mm (inches) | 2.00 (0.078) |
| Lead Dia. mm (inches) | 0.4 (0.015) |
| Contact Form | 1A (SPST) Normally Open (N.O.) |
| Pull-In Range | 10-40 AT |
| Rated Power Max. | 10W/200VDC/0.5 Amp DC |
- Position detection
- Fluid level sensing
- Metering and flow monitoring
- Automotive sensors and controls
- Test and measurement equipment (ATE)
- Consumer electronics and appliances