Overview
The SM15T39CAHE3/57T is a surface mount transient voltage suppressor (TVS) diode produced by Vishay General Semiconductor - Diodes Division. This component is part of the SM15T series, designed to protect sensitive electronics from voltage transients induced by inductive load switching, lightning, and other transient events. The SM15T39CAHE3/57T is available in both unidirectional and bidirectional configurations, making it versatile for various applications.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Stand-off Voltage | VWM | 5.8 V to 188 V | V |
| Breakdown Voltage (Unidirectional) | VBR | 6.8 V to 220 V | V |
| Breakdown Voltage (Bidirectional) | VBR | 6.8 V to 220 V | V |
| Peak Pulse Power Dissipation (10/1000 μs) | PPPM | 1500 W | W |
| Power Dissipation on Infinite Heatsink | PD | 6.5 W | W |
| Peak Pulse Current (10/1000 μs) | IPPM | See datasheet for specific values | A |
| Peak Forward Surge Current (10 ms single half sine-wave) | IFSM | 200 A (unidirectional only) | A |
| Operating Junction and Storage Temperature Range | TJ, TSTG | -65 to +150 °C | °C |
| Package | SMC (DO-214AB) | ||
| Lead Finishing | Matte tin plated leads |
Key Features
- Low Profile Package: Ideal for automated placement and space-saving designs.
- Glass Passivated Chip Junction: Enhances reliability and stability.
- Unidirectional and Bidirectional Options: Versatile for different application needs.
- High Peak Pulse Power Capability: 1500 W with a 10/1000 μs waveform.
- Excellent Clamping Capability: Effective in protecting against voltage transients.
- Low Inductance: Minimizes interference and ensures efficient performance.
- RoHS-compliant and AEC-Q101 Qualified: Meets environmental and automotive standards.
Applications
The SM15T39CAHE3/57T is used in various applications to protect sensitive electronics against voltage transients. These include:
- Consumer Electronics: Protects ICs, MOSFETs, and signal lines from transient voltages.
- Computer Systems: Safeguards against switching transients and lightning-induced surges.
- Industrial Equipment: Protects against transients induced by large coils or industrial motors.
- Automotive Systems: Meets AEC-Q101 standards for automotive applications.
- Telecommunications: Ensures reliable operation in communication systems.
Q & A
- What is the peak pulse power dissipation of the SM15T39CAHE3/57T?
The peak pulse power dissipation is 1500 W with a 10/1000 μs waveform. - What are the operating junction and storage temperature ranges for this component?
The operating junction and storage temperature ranges are -65 to +150 °C. - Is the SM15T39CAHE3/57T RoHS-compliant?
Yes, it is RoHS-compliant and also meets AEC-Q101 automotive standards. - What is the package type of the SM15T39CAHE3/57T?
The package type is SMC (DO-214AB). - What is the lead finishing of the SM15T39CAHE3/57T?
The lead finishing is matte tin plated. - Can the SM15T39CAHE3/57T be used in automotive applications?
Yes, it is AEC-Q101 qualified for automotive use. - What are the typical applications of the SM15T39CAHE3/57T?
It is used in consumer electronics, computer systems, industrial equipment, automotive systems, and telecommunications. - Does the SM15T39CAHE3/57T come in both unidirectional and bidirectional configurations?
Yes, it is available in both unidirectional and bidirectional configurations. - What is the maximum forward surge current for the SM15T39CAHE3/57T?
The maximum forward surge current is 200 A for unidirectional types. - Is the SM15T39CAHE3/57T suitable for automated placement?
Yes, it has a low profile package ideal for automated placement.
