

The SR05 consists of four, low capacitance steering diodes and a low voltage TVS diode that provide protection against ESD and lightning surge events. Each channel or I/O pin can safely absorb up to 25A (tP=8/20μs) and repetitive ESD strikes above the maximum level (Level 4) specified in the IEC 61000-4-2 international standard without performance degradation.
The low loading capacitance makes it ideal for protecting high-speed telecommunication data lines.
- ESD, IEC61000-4-2 , ±30kV contact discharge, ±30kV air discharge
- EFT, IEC61000-4-4, 80A (tP=5/50ns)
- Lightning protection, IEC61000-4-5, 25A (tP=8/20μs)
- Low capacitance of 6.0pF (TYP) per I/O
- Low clamp voltage
- Small SOT143 (JEDEC TO-253) packaging
- Moisture Sensitivity Level (MSL-1)
SR05 Parts
Filters
Showing 1 to 12 of 314 Total Results
Part Number | Actions | 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 | 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 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
± 30 | ± 30 | 1.0 pF | No | SOD882 | |||||||||
22 | 20 | 1.0 | SOT523-3L | ||||||||||
22 | 20 | 1.0 | Yes | SOT723-3L | |||||||||
±30 | ±30 | 30 | Unidirectional | SOD882 | |||||||||
±30 | ±30 | 30 | Unidirectional | SOD523 | |||||||||
±30 | ±30 | 30pF@0.0V/23pF@2.5V | Bidirectional | SOD882 | |||||||||
±30 | ±30 | 25@0V/15@2.5V | Unidirectional | uDFN0603 | |||||||||
±30 | ±30 | 15@0V/12@2.5V | Bidirectional | uDFN0603 | |||||||||
30 | 30 | 7 | Bidirectional | SOD882 | |||||||||
±30 | ±30 | 7 | Bidirectional | ||||||||||
±30kV | ±30kV | 7 | Bidirectional | SOD523 | |||||||||
±30kV | ±30kV | 7 | Bidirectional | SOD523 |
SR05 Applications
- T1/E1 IC/Secondary Protection
- Ethernet 10BaseT
- WAN/LAN Equipment
- ISDN S/T Interface
- Video Lines
- Microcontroller Input Protection
Series: SR05 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.