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Product Detailed Parameters
- Description：DIODE ZENER 16V 5W T18
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：16 V
- Tolerance：±20%
- Power - Max：5 W
- Impedance (Max) (Zzt)：2.5 Ohms
- Current - Reverse Leakage @ Vr：1 µA @ 11.5 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 1N5353/TR12 is a silicon 5.0-watt Zener diode from the JEDEC registered 1N5333B through 1N5388B series. It provides voltage regulation at a nominal Zener voltage of 16 V with a standard ±5% tolerance. 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 2.5 Ohms, a maximum reverse current of 1.0 µA, and a maximum regulator current of 6.0 A when adequately heat sunk.
Feature Summary
- Provides stable voltage regulation across a broad operating current and temperature range
- Withstands high surge stresses and offers flexible axial-lead mounting terminals
- Features minimal changes in voltage versus current as specified by voltage regulation parameters
Applications
- Voltage regulation in power supply circuits
- Reference voltage generation for electronic systems
- Overvoltage protection applications
Procurement Notes
Verify the specific suffix configuration against official datasheets to confirm RoHS compliance status and packaging type. The TR12 designation indicates tape and reel packaging; ensure this aligns with automated assembly requirements. Confirm availability and lifecycle status directly with the manufacturer or authorized distributors prior to procurement.
Selection Notes
Select this component for applications requiring 5-watt power dissipation and precise 16 V regulation. Ensure adequate heat sinking is provided to maintain performance within the specified thermal resistance limits. Verify that the required surge current handling and dynamic impedance specifications meet the circuit design constraints.
Part Context
This part belongs to the 1N5333B through 1N5388B series of silicon Zener diodes manufactured by Microsemi (now Microchip Technology). The series covers a wide voltage selection from 3.3 V to 200 V. These devices are designed for high-power applications and offer various tolerance options and screening levels depending on the specific suffix codes used.
Replacement Considerations
Consult the official datasheet for equivalent surface mount alternatives such as the SMBJ5353B or SMBG5353B series. Verify pinout compatibility and thermal management requirements when substituting with other manufacturers' parts.
