KSK-1A54 Series Reed Switch



The KSK-1A54 Series is a high-frequency reed switch engineered for high-voltage and high-current applications. With a robust glass body measuring 53.4 mm in length and 5.4 mm in diameter, and an overall length of 81.6 mm, this SPST-NO (Form A) switch delivers reliable performance in demanding environments.
Rated for up to 25 W, 500 VDC, and 1.5 A DC, the KSK-1A54 is ideal for RF switching, medical equipment, and automated test systems. Its hermetically sealed contacts ensure long-term durability and consistent operation, even under harsh conditions.
Standards and Certifications
- High-frequency capability for RF and signal switching
- Robust construction suitable for high-voltage and high-current environments
- Hermetically sealed glass body protects against moisture and contaminants
- Flat lead design enables secure mounting and automated assembly
- No power required for actuation, supporting energy-efficient systems
- Reliable performance in vibration-prone and industrial settings
Overall Length mm (inches) | 81.6 (3.212) |
Glass Length Max. mm (inches) | 53.4 (2.102) |
Glass Dia. Max. mm (inches) | 5.40 (0.212) |
Lead Dia. mm (inches) | 1.3 (0.051) |
Contact Form | 1A (SPST) Normally Open (N.O.) |
Rated Power Max. | 25W/500VDC/1.5 Amp DC |
- RF signal switching in communication systems
- Medical equipment requiring precise and isolated switching
- Automated test equipment (ATE)
- High-voltage industrial control systems
- Power monitoring and metering devices