Overview
The World Magnetics PSF100A is a military-approved DesignFlex pressure sensor switch engineered for demanding industrial and aerospace applications. Featuring patented shock and vibration protection, this miniature switch handles pressure, vacuum, and differential pressure sensing in harsh environments. The dual diaphragm, dual contact design with gold-plated terminals delivers reliable switching performance across thousands of duty cycles without false actuation.
Key Features
- Patented shock and vibration resistance—will not false trigger at 50G shock or 10G continuous vibration (50–2000 Hz)
- Dual diaphragm with dual make/double-break contact points, gold-plated for low contact resistance
- Mechanical life rated to 20+ million cycles for extended equipment uptime
- Set point range from 0.1″ to 50.0″ Hâ‚‚O with standard tolerance ±20%
- Three-mode operation: pressure sensing, vacuum sensing, and differential pressure measurement
- Polycarbonate case with barbed porting for 1/8″–3/16″ ID tubing
Technical Specifications
- Model: PSF100A (6C-H3 configuration)
- Electrical Rating: 100A maximum amperage
- Switch Type: SPST normally open, dual-make/double-break
- Operating Temperature: +40°F to +150°F (standard); extended range –46°F to +205°F available
- Set Point Range: 0.1″ to 50.0″ Hâ‚‚O, ±20% standard tolerance
- Proof Pressure: 8 psi (≤3.0″ Hâ‚‚O set point); 15 psi (>3.0″ Hâ‚‚O set point)
- Contact Material: Gold-plated dual contacts
- Diaphragm: Polyurethane (Teflon® optional)
- Case Material: Polycarbonate
- Porting: Two .200″ diameter barbed ports for low/high side
- Certifications: Military Standard (MIL-SPEC) approved
- Mechanical Life: 20+ million cycles
Typical Applications
The PSF100A excels in demanding industrial, aerospace, and medical environments requiring precision pressure control with immunity to shock and vibration. Common applications include aircraft airspeed measurement, medical equipment (sip & puff wheelchair controllers), HVAC monitoring, hydraulic system pressure detection, pneumatic equipment control, and industrial filtration systems requiring low false-actuation rates.
Compatibility & Replacements
Compatible With
- HVAC and pneumatic control systems requiring low-pressure switching
- Hydraulic systems rated for 0.1″ to 50″ Hâ‚‚O pressure ranges
- Medical and mobility equipment with sip & puff control modules
- Aircraft and aerospace instrumentation for airspeed and cabin pressure monitoring
- Industrial filtration and separation equipment
Replaces / Drop-In Replacement For
The PSF100A 6C-H3 is a direct replacement for earlier PSF100A series pressure switches with identical footprint, porting, and electrical ratings. Verify pressure set point, diaphragm material, and temperature range against your original unit specifications before ordering.
Works With
- Pneumatic and hydraulic tubing (1/8″–3/16″ ID compatible with barbed ports)
- Standard 24 VDC and 120 VAC industrial control circuits
- Solenoid valves, relays, and PLC input modules
- Compressed air and inert gas systems
