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Product Detailed Parameters
- Description：DIODE ZENER 19V 5W T18
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：19 V
- Tolerance：±2%
- Power - Max：5 W
- Impedance (Max) (Zzt)：3 Ohms
- Current - Reverse Leakage @ Vr：500 nA @ 13.7 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
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Overview
The Microchip Technology 1N5356CE3/TR13 is a silicon 5-watt Zener diode in the JEDEC registered 1N5333-5388B series. It provides voltage regulation at a nominal Zener voltage of 19V with a ±5% tolerance, indicated by the 'B' suffix. The device operates within a temperature range of -65°C to +150°C and features an axial lead T-18 package. Electrical characteristics include a maximum dynamic impedance of 3.0 ohms and a maximum reverse current of 0.5 µA. The component is RoHS compliant (e3) and available in tape and reel packaging (TR).
Feature Summary
- Provides stable voltage regulation across a broad operating current and temperature range.
- Withstands high surge stresses and offers minimal changes in voltage versus current.
- Features flexible axial-lead mounting terminals for standard through-hole integration.
Applications
- Voltage regulation circuits requiring 5W power dissipation.
- Power supply protection against transient overvoltages.
- Reference voltage generation in electronic systems.
Procurement Notes
Verify the specific manufacturer origin, as the datasheet identifies Microsemi Scottsdale Division while the model prefix indicates Microchip Technology. Confirm that the 'e3' suffix denotes RoHS compliance and the 'TR' suffix confirms tape and reel packaging. Ensure the B suffix corresponds to the required ±5% voltage tolerance for your design specifications.
Selection Notes
Select this component when a 19V regulated reference is needed with a 5W power rating. Consider the T-18 axial package for through-hole applications. Evaluate thermal management requirements, as steady-state power dissipation depends on heat sinking or PCB copper pad area. Verify compatibility with the specified -65°C to +150°C operating temperature range.
Part Context
This part belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. The series covers a wide voltage selection from 3.3V to 200V. The 1N5356 variant specifically targets the 19V regulation point within this extensive lineup, offering standardized electrical parameters for industrial and commercial electronics.
Replacement Considerations
Surface mount equivalents are available in SMBJ5356B or SMBG5356B packages. Other manufacturers may offer direct replacements within the 1N53xx series, but verification of pinout, power derating curves, and tolerance levels is required.
