Overview
The SM712.TCT is a transient voltage suppressor (TVS) diode designed by Semtech Corporation for asymmetrical protection in multi-point data transmission standard RS-485 applications. This component is engineered to safeguard devices from transient voltages resulting from electrostatic discharge (ESD), electrical fast transients (EFT), and lightning. The SM712.TCT is particularly useful in environments where data integrity and system reliability are critical.
Key Specifications
| Attribute | Value |
|---|---|
| Breakdown Voltage (Min) | 7.5 V |
| Clamping Voltage (Max) | 12 V |
| Directional | Bi-Directional |
| Peak Pulse Power | 400 W (tp = 8/20 μs) |
| Peak Output Current | 17 A |
| Reverse Leakage Current | 1 μA |
| Standoff Voltage | 12 V |
| Operating Temperature Range | -55°C to +125°C |
| Storage Temperature Range | -55°C to +150°C |
| Capacitance | 75 pF |
| Package Style | SOT-23 (SC-59, TO-236) |
| Mounting Method | Surface Mount |
Key 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), and IEC 61000-4-5 (Lightning) 12 A (8/20 μs)
- Protects two +12 V to -7 V lines
- Low capacitance and low clamping voltage
- Solid-state silicon avalanche technology
- Lead-free, RoHS, and WEEE compliant
Applications
- Protection of RS-485 transceivers with extended common-mode range
- Security systems
- Automatic Teller Machines
- HFC systems
- Networks
Q & A
- What is the primary function of the SM712.TCT? The SM712.TCT is a transient voltage suppressor (TVS) diode designed to protect devices from transient voltages resulting from ESD, EFT, and lightning.
- What are the key protection standards met by the SM712.TCT? The SM712.TCT meets IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and IEC 61000-4-5 (Lightning) standards.
- What is the peak pulse power of the SM712.TCT? The peak pulse power is 400 watts (tp = 8/20 μs).
- What is the operating temperature range of the SM712.TCT? The operating temperature range is -55°C to +125°C.
- What package style is the SM712.TCT available in? The SM712.TCT is available in a SOT-23 (SC-59, TO-236) package.
- Is the SM712.TCT lead-free and RoHS compliant? Yes, the SM712.TCT is lead-free, RoHS, and WEEE compliant.
- What are some common applications of the SM712.TCT? Common applications include protection of RS-485 transceivers, security systems, automatic teller machines, HFC systems, and networks.
- What is the capacitance of the SM712.TCT? The capacitance is 75 pF.
- What is the reverse leakage current of the SM712.TCT? The reverse leakage current is 1 μA.
- How many units are typically packaged in a reel? 3000 units are typically packaged in a reel.
