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Product Detailed Parameters
- Description：DIODE ZENER 14V 5W T18
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：14 V
- Tolerance：±2%
- Power - Max：5 W
- Impedance (Max) (Zzt)：2.5 Ohms
- Current - Reverse Leakage @ Vr：1 µA @ 10.1 V
- Operating Temperature：-65°C ~ 150°C
- Mounting Type：Through Hole
- Package / Case：T-18, Axial
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 1 A
- Grade：-
- Qualification：-
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Overview
The Microchip Technology 1N5351C/TR8 is a silicon 5-watt Zener diode with a nominal voltage of 14V and a tight tolerance of ±2%. It operates within a temperature range of -65°C to +150°C. The device features a maximum reverse current of 1.0 µA, a dynamic impedance of 2.5 Ω, and a maximum regulator current of 10.6 A. Packaged in the T-18 axial lead format on a reel, it provides stable voltage regulation for high-power applications.
Feature Summary
- Provides precise voltage regulation with a tight ±2% tolerance
- Capable of handling high surge stresses and steady-state power dissipation up to 5 watts
- Features flexible axial-lead mounting terminals for through-hole integration
Applications
- High-power voltage regulation circuits
- Overvoltage protection systems
- Reference voltage generation in industrial equipment
Procurement Notes
Verify the specific suffix 'TR8' indicates tape and reel packaging configuration. Confirm that the component is sourced from authorized channels due to potential discontinuation or supply constraints associated with legacy JEDEC registered series. Ensure compatibility with existing thermal management designs given the 5W power rating.
Selection Notes
Select this component when a 14V reference requires tighter than standard tolerances. The C suffix ensures ±2% accuracy compared to the standard B (±5%) or A (±10%) variants. Consider the T-18 package size and thermal resistance characteristics for PCB layout and heat sinking requirements.
Part Context
This part belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes originally developed by Microsemi Scottsdale Division. The series offers a wide selection of voltages from 3.3V to 200V with various tolerance options identified by suffix letters.
Replacement Considerations
Compatible equivalents include other 14V 5W Zener diodes with ±2% tolerance such as the 1N5351B (±5%) if looser tolerance is acceptable, or military screened versions like 1N5351C/MQ. Verify pinout and thermal specifications match.
