Description
Vishay BZT03C91-TAP 91V 1.3W Zener Diode
The Vishay BZT03C91-TAP is a high-reliability 91V 1.3W Zener Diode engineered for voltage regulation, overvoltage protection, and transient suppression in demanding electronic circuits. Built with Vishay’s superior semiconductor technology, this axial-leaded Zener diode provides tight voltage clamping, low dynamic impedance, and excellent thermal stability, ensuring long-term protection for sensitive electronic components and power electronics.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Vishay |
| Part Number | BZT03C91-TAP |
| Zener Voltage (Vz) | 91 V |
| Power Dissipation | 1.3 W |
| Diode Type | Zener Voltage Regulator / Suppressor |
| Package / Case | SOD-57 (Axial Lead) |
Key Performance Advantages
- High 1.3W power handling capacity delivers robust surge protection and stable voltage regulation
- Precise 91V nominal Zener breakdown voltage ensures reliable overvoltage clamping
- Hermetically sealed axial package provides superior reliability against environmental stressors
- Low dynamic resistance ensures consistent performance across varying operating current levels
- High junction temperature rating ideal for harsh industrial operating conditions
Typical Applications
- Overvoltage protection and transient suppression in switch-mode power supplies (SMPS)
- DC-to-DC converters and voltage stabilization circuits
- Industrial control systems, relays, and automation equipment
- Telecommunications and automotive electronic control units (ECUs)





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