

The SP4022 series integrate low capacitance steering diodes with one or two avalanche breakdown diodes for unidirectional or bidirectional protection, respectively, to protect against ESD and lightning induced surge events. These devices can safely absorb up to 15A per IEC 61000-4-5 2nd Edition (tP=8/20μs) without performance degradation and a minimum ±30kV ESD per IEC61000-4-2 International Standard. The low loading capacitance and high surge capability make it ideal for protecting telecommunication ports such as xDSL and other high voltage, high speed legacy interfaces.
- ESD IEC61000-4-2,±30kV contact, ±30kV air
- EFT, IEC61000-4-4, 40A (5/50ns)
- Lightning, 15A (8/20μs as defined in IEC 61000-4-5 2nd edition)
- Low capacitance of 1.3pF (@ VR=0V)
- Low leakage current
- Unidirectional and Bidirectional configuration
- Small SOD323 package fits 0805 footprints
- AEC-Q101 qualified
- Moisture Sensitivity Level (MSL-1)
SP4022 Parts
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Showing 1 to 2 of 2 Total Results
Part Number | Actions | AEC-Q101 Qualified | VR (Vstandoff) | ILeak (µA) | ESD Contact (kV) | ESD Air (kV) | Lightning Immunity (8x20µs)(A) | Clamp Voltage | CI/O TYP (pF) | Polarity | Channels | MIN VBR@IT (V) | Package |
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Part Number | Actions | AEC-Q101 Qualified | VR (Vstandoff) | ILeak (µA) | ESD Contact (kV) | ESD Air (kV) | Lightning Immunity (8x20µs)(A) | Clamp Voltage | CI/O TYP (pF) | Polarity | Channels | MIN VBR@IT (V) | Package | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Yes | 12 | 0.1 | 30 | 30 | 15 | 19V@1A | 1.3 | Unidirectional | 1 | 13.3 | SOD323 | |||
Yes | 12 | 0.1 | 30 | 30 | 15 | 19V@1A | 1.3 | Bidirectional | 1 | 13.3 | SOD323 |
SP4022 Applications
- xDSL Interfaces
- RS-232
- RS-485
- Power Ports
- Security Equipment
- Instrumentation
- Medical Equipment
- Computers and Peripherals
Series: SP4022 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.