製品
回路保護
Semtech SM712
12 V TVS Diode Array For ESD and Latch-Up Protection
The SM712 transient voltage suppressor (TVS) diode is designed for asymmetrical (12V to -7V) protection in multi-point data transmission standard RS-485 applications. The SM712 may be used to protect devices from transient voltages resulting from electrostatic discharge (ESD), electrical fast transients (EFT) and lightning.
概要
Features
- 400 watts peak pulse power (tp = 8/20 µs)
- Transient protection for asymmetrical 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) 12 A (8/20 µs)
- Protects two +12 V – -7 V lines
- Low capacitance
- Low clamping voltage
- Solid-state silicon-avalanche technology
- Lead-free, RoHS and WEEE compliant
アプリケーション
- Protection of RS-485 transceivers with extended common-mode range
- Security systems
- Automatic teller machines
- HFC systems
- ネットワーク
Packaging
- SOT-23
- 3000 pcs. Tape & Reel
Order Codes
- SM712.TCT
Datasheets and Resources
Application Notes
- Calculating Clamping Voltage at Different Peak Pulse Currents
- Calculating Transient Energy
- Disadvantages of On-Chip Transient Protection
- ESD保護
- ESD Threat to Semiconductor Devices
- PCB Design Guidelines for ESD Suppression
- Transient Immunity Standards: IEC 61000-4-x
- TVS Diode Selection
- TVS Peak Pulse Power vs. Pulse Duration
- TVS Power Derating vs. Temperature
- Unidirectional and Bidirectional Operation
- What are TVS Diodes?
