Products
Circuit Protection
Semtech SRDA70-4
RailClamp® 500 Watt Low-Capacitance 15 pF / Line Array
RailClamps are surge rated diode arrays designed to protect high speed data interfaces. The SRDA70-4 has been specifically designed to protect sensitive components which are connected to data and transmission lines from overvoltage caused by electrostatic discharge (ESD), electrical fast transients (EFT), and lightning.
Overview
Features
- Transient protection for high-speed data lines to
- IEC 61000-4-2 (ESD) ± 15 kV (air), ± 8 kV (contact)
- IEC 61000-4-4 (EFT) 40 A (5/50 ns)
- IEC 61000-4-5 (lightning) 1 kV, 24 A (8/20 µs)
- Array of surge-rated diodes
- Protects four I/O lines
- Low capacitance for high-speed interfaces
- High surge capability
- Low forward voltage characteristics
- Solid-state silicon-avalanche technology
Applications
- Latch-up protection
- Microcontroller input protection
- Token ring
- I2C bus protection
- Video line protection
- Set-top box I/O
- LAN/WAN equipment
Packaging
- IEC 61000-4-2 (ESD) ± 15 kV (air), ± 8 kV (contact)
- IEC 61000-4-4 (EFT) 40 A (5/50 ns)
- IEC 61000-4-5 (lightning) 1 kV, 24 A (8/20 µs)
- Latch-up protection
- Microcontroller input protection
- Token ring
- I2C bus protection
- Video line protection
- Set-top box I/O
- LAN/WAN equipment
Packaging
SO-8
Order Codes
- SRDA70-4.T: Lead-free, RoHS and WEEE compliant, 95 pcs. Tube
- SRDA70-4.TBT: Lead-free, RoHS and WEEE compliant, 500 pcs. Tape & Reel
Diagrams and Specs
Block Diagram
Click diagram to enlarge
Datasheets and Resources
Restricted
Application Matrices
- TVS Applications Matrix - Computers
- TVS Applications Matrix - Portables
- TVS Applications Matrix - Standards
- TVS Applications Matrix - Telecom
Application Notes
- Calculating Clamping Voltage at Different Peak Pulse Currents - SI97-03
- Calculating Transient Energy - SI97-02
- Disadvantage of On-Chip Transient Protection - SI97-04
- ESD Protection -SI96-12
- ESD Threat to Semiconductor Devices - SI96-11
- Low Capacitance Devices - SI96-07
- PCB Design Guidelines for ESD Suppression - SI99-01
- RailClamp® TVS Diodes for High-Speed Interfaces - SI99-02
- Sources of Transients: Lightning - SI96-09
- Transient Immunity Standards: IEC 61000-4-x - AN96-07
- TVS Diode Loading Capacitance vs. Data Transmission Rate - SI96-08
- TVS Diode Selection - SI96-02
- TVS Peak Pulse Power vs. Pulse Duration - SI96-03
- TVS Power Derating vs. Temperature - SI96-04
- Unidirectional and Bidirectional Operation - SI96-05
- What are TVS Diodes? - SI96-01
Datasheets
Tools and Resources
TVS Protection Selector Guide
Download Free Copy
