BZX84-C3V9 – NXP/PHILIPS
Zener Diode, 3.9V, 250mW, ±5%, SMT, TO-236AB
Stock Quantity: 4791
Selling Unit: Each
| Quantity | Price (ex VAT) |
|---|---|
| 1+ | 2.92 |
| 10+ | |
| 50+ | |
| 100+ |
4791 in stock
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- 6 month warranty on all stock items
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Overview
The NXP BZX84-C3V9 is a highly stable 3.9V Zener diode designed for precise voltage regulation in sensitive electronic circuits. Its critical operational characteristic lies in its tight voltage tolerance, ensuring consistent output voltage even under varying load conditions. A key design consideration when utilizing this component is managing its total power dissipation (Ptot ≤ 250 mW); exceeding this limit, particularly in compact SOT23 packages, can lead to thermal runaway and premature device failure, necessitating careful thermal management strategies in the PCB layout.
Key Features
- Nominal Zener Voltage (VZ): 3.9 V
- Maximum Continuous Power Dissipation (Ptot): 250 mW
- Non-repetitive Peak Reverse Power Dissipation (PZSM): 40 W
- Standard Tolerance: ±5%
- Maximum Forward Current (IF): 200 mA
- Package: SOT23 (2.9 x 1.3 x 1 mm)
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.
- Precision voltage reference generation for analog front-ends
- Overvoltage protection for sensitive digital ICs
- Low-power shunt regulation in battery-powered devices
- Stabilizing bias points in audio amplifier stages
