

The P4SMA series is designed specifically to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events.
- 400W peak pulse power capability at 10/1000μs waveform, repetition rate (duty cycles): 0.01%
- Excellent clamping capability
- Typical IR less than 1μA when VBR min>12V
- Surface mount footprint for compact PCB layout
- Low profile package
- Typical failure mode due to exceeding maximum ratings is a short circuit condition
- Whisker test conducted based on Table 4a and 4c of JEDEC JESD201A
- IEC 61000-4-2 ESD 30kV(Air), 30kV (Contact)
- Built-in strain relief
- Fast response time: typically less than 1.0ps from 0V to BV min
P4SMA Parts
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Showing 1 to 2 of 2 Total Results
Part Number | Actions | VR (Vstandoff) | Watts (W) | I PP 10x1000µs (A) | MIN VBR@IT (V) | MAX VBR@IT (V) | Vc (V) | IT (mA) | Ir@Vr(µA) | Operating Temperature Max (°C) | Polarity | Package | Agency Approvals |
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Part Number | Actions | VR (Vstandoff) | Watts (W) | I PP 10x1000µs (A) | MIN VBR@IT (V) | MAX VBR@IT (V) | Vc (V) | IT (mA) | Ir@Vr(µA) | Operating Temperature Max (°C) | Polarity | Package | Agency Approvals | |
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P4SMA Applications
- Consumer electronics
- Computers
- Industrial controls
- I/O interfaces
- Telecom equipment
- VCC buses
Series: P4SMA Resources

Circuit Protection Selection Guide
Consult this guide to learn about circuit protection considerations and the solutions Littelfuse offers. Tables help match products with applications.