BZG03C39TR – VISHAY
Zener Diode, 39V, 1.25W, SMA (DO-214AC), Surface Mount
Stock Quantity: 74
Selling Unit: Each
| Quantity | Price (ex VAT) |
|---|---|
| 1+ | 0.29 |
| 10+ | |
| 50+ | |
| 100+ |
74 in stock
Contact us for volume pricing
- Same day shipping if ordered before 14.00 GMT
- 6 month warranty on all stock items
- All stock held and shipped from our UK warehouse
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Overview
The Vishay BZG03C39TR is a 39V Zener diode designed for robust voltage regulation and transient suppression in demanding electronic systems. Its primary function is to maintain a stable voltage reference by shunting excess current, a critical role in protecting sensitive downstream circuitry. A key design consideration for Zener diodes of this power rating (1.25W) is the thermal management; while it offers substantial power handling, designers must ensure adequate heatsinking to prevent exceeding the 150°C maximum operating temperature, which could lead to parametric drift or premature failure, especially in high-current surge scenarios.
Key Features
- Zener Voltage (Vz): 39 V
- Maximum Power Dissipation: 1.25 W
- Maximum Zener Impedance (Zzt): 40 Ohms
- Low Reverse Leakage: 1 µA @ 30 V
- Forward Voltage (Vf) Max: 1.2 V @ 500 mA
- Package: DO-214AC (SMA), Surface Mount
Applications
The component is engineered for deployment in systems requiring high reliability and performance under specific operating conditions. It provides functional stability across the stated design envelope.
- Voltage clamping in power supply input stages
- Transient voltage suppression (TVS) for sensitive ICs
- Reference voltage generation in analog circuits
- Protection against ESD events in connector interfaces
