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Product Detailed Parameters
- Description：DIODE ZENER 25V 5W T18
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：25 V
- Tolerance：±20%
- Power - Max：5 W
- Impedance (Max) (Zzt)：4 Ohms
- Current - Reverse Leakage @ Vr：500 nA @ 18 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 1N5360/TR8 is a silicon 5.0-watt Zener diode from the JEDEC registered 1N5333B through 1N5388B series. It provides voltage regulation with a nominal Zener voltage of 25 V and a ±5% tolerance, indicated by the B suffix. The device operates within a temperature range of -65°C to +150°C and features a T-18 axial-lead package. Electrical characteristics include a maximum dynamic impedance of 4.0 ohms at a test current of 50 mA, a maximum reverse current of 0.5 µA, and a maximum regulator current of 4.3 A.
Feature Summary
- Provides stable voltage regulation across a broad operating current and temperature range
- Withstands high surge stresses and exhibits minimal changes in voltage versus current
- Features flexible axial-lead mounting terminals for secure installation
- Non-sensitive to electrostatic discharge (ESD) per MIL-STD-750 Method 1020
Applications
- Voltage regulation in power supply circuits
- Overvoltage protection for sensitive electronic components
- Reference voltage generation in measurement systems
Procurement Notes
Verify the specific suffix letter on the part number to confirm the exact voltage tolerance required for the application. Confirm that the TR8 designation aligns with the tape and reel packaging option specified in the datasheet. Ensure the component meets all environmental and screening requirements before procurement.
Selection Notes
Select this component when a 5-watt power dissipation rating and a 25-volt regulation point are necessary. Consider the T-18 package dimensions and thermal resistance characteristics for adequate heat sinking. Evaluate the maximum regulator current and surge current capabilities against the circuit's peak load requirements.
Part Context
This component belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes manufactured by Microsemi, now part of Microchip Technology. The series offers a wide selection of voltages from 3.3V to 200V with various tolerance options identified by suffix letters. These devices are designed for applications requiring robust voltage regulation and high surge current handling.
Replacement Considerations
Surface mount equivalents such as SMBJ5333 to SMBJ5388B or SMBG5333B to SMBG5388B are available. RoHS compliant versions can be identified by adding the e3 suffix to the part number.
