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Product Detailed Parameters
- Description：DIODE ZENER 56V 5W T18
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：56 V
- Tolerance：±2%
- Power - Max：5 W
- Impedance (Max) (Zzt)：35 Ohms
- Current - Reverse Leakage @ Vr：500 nA @ 40.3 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 1N5370CE3/TR12 is a silicon 5-watt Zener diode with a nominal voltage of 56 V and a tight tolerance of ±2%. It operates within a temperature range of -65°C to +150°C. The device features a maximum reverse leakage current of 0.5 µA at 42.6 V, a dynamic impedance of 35 Ω, and a maximum regulator current of 2.3 A. Packaged in the T-18 axial lead format, it is supplied in tape and reel configurations.
Feature Summary
- Provides stable voltage regulation across a broad operating current and temperature range
- Withstands high surge stresses and exhibits minimal voltage change versus current
- Features flexible axial-lead mounting terminals for secure installation
Applications
- Voltage regulation circuits requiring high power dissipation
- Protection against overvoltage conditions in industrial systems
- Reference voltage sources in precision measurement equipment
Procurement Notes
Verify the specific suffix 'C' confirms the ±2% tolerance requirement and 'e3' indicates RoHS compliance before procurement. Confirm the 'TR12' designation matches the required tape and reel packaging specifications for automated assembly processes. Ensure the component meets all environmental standards relevant to the intended deployment environment.
Selection Notes
Select this component when precise voltage regulation is critical due to its tight ±2% tolerance. The 5-watt power rating allows operation at high DC currents provided adequate heat sinking is implemented. Verify that the thermal resistance characteristics align with the system's cooling capabilities to maintain performance within the specified temperature limits.
Part Context
This part belongs to the JEDEC registered 1N5333B through 1N5388B series of 5-watt Zener diodes. The series offers a wide selection of voltages from 3.3V to 200V. The 'C' suffix specifically denotes the tighter ±2% tolerance variant compared to standard B or A suffixes.
Replacement Considerations
Equivalent parts include 1N5370B and 1N5370A, though these offer wider tolerances of ±5% and ±10% respectively. Direct functional substitutes must match the 56V nominal voltage and 5W power dissipation rating.
