The Semtech SM712 is a high-performance transient voltage suppressor (TVS) diode engineered for asymmetrical protection in RS-485 data transmission systems. Designed for extended common-mode ranges (12 V to –7 V), the SM712 shields your design from ESD, EFT, and lightning-induced surges. It delivers robust protection with peak pulse power up to 400-700 W (tp = 8/20 µs) and supports pulse currents up to 21 A (positive) / 38 A (negative) in a compact SOT-23 form factor. Integrated dual-element protection reduces component count, improves reliability, and minimizes overshoot from trace inductance. Ideal for high-sensitivity electronics in industrial networks, security systems, ATMs, HFC networks, and beyond.
| Parameter |
Value |
| Polarity |
Bidirectional |
| Number of Channels |
2 Channel |
| Working Voltage |
12 V |
| Termination Style |
SMD/SMT |
| Clamping Voltage |
26 V |
| Breakdown Voltage |
13.3 V |
| Package / Case |
SOT-23 |
| Ipp – Peak Pulse Current |
17 A |
| Pppm – Peak Pulse Power Dissipation |
400 W |
| Cd – Diode Capacitance |
75 pF |
| Vesd – ESD Contact Discharge Voltage |
8 kV |
| Vesd – ESD Air Gap Discharge Voltage |
15 kV |
| Product Type |
ESD Suppressors |
| Minimum Operating Temperature |
–55 °C |
| Maximum Operating Temperature |
+125 °C |
| Packaging Options |
Reel, Cut Tape |
| Brand |
Semtech |
| Current Rating |
1 µA |
| Operating Supply Voltage |
12 V |
