High-reliability tactical switches that resist corrosion, thermal shock, and vibration offered by Littelfuse

IP67 momentary action switches use an extended-cage design to simplify the potting process and improve long-term durability in harsh environments.
July 15, 2025

Summary points:

  • KSC PF series tactile switches feature an IP67-rated, potting-friendly architecture to protect against moisture, dust, and vibration.
  • Extended-cage design simplifies potting and enhances durability in aerospace, automotive, medical, and industrial applications.
  • Switches measure 6.2 by 6.2 by 5.2 millimeters, provide tactile feedback, and is engineered for long-term reliability in mission-critical applications.

ROSEMONT, Ill. – Littelfuse Inc. in Rosemont, Ill., is introducing the KSC PF series sealed tactile switches for surface-mount technology (SMT) in aerospace, automotive, medical, and industrial applications.

These compact IP67-rated momentary action switches use an extended-cage design that simplifies the potting process and improves long-term durability in harsh environments.

The high-reliability KSC PF series measures 6.2 by 6.2 by 5.2 millimeters, and offers a soft actuator with positive tactile feedback and protection against moisture, dust, and vibration. Its potting-friendly architecture offers engineers flexibility when designing electronics for outdoor and mission-critical environments.

Optimized for potting

The KSC PF series is optimized explicitly for potting -- a process gaining traction across several industries. Potting involves encapsulating sensitive circuit board-mounted components in resin to protect components from corrosion, thermal shock, and vibration.

For more information contact Littelfuse online at www.littelfuse.com.

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