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1N4751AP/TR12
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Product Detailed Parameters
- Description：DIODE ZENER 30V 1W DO204AL
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：30 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：40 Ohms
- Current - Reverse Leakage @ Vr：5 µA @ 22.8 V
- Operating Temperature：-65°C ~ 150°C
- Mounting Type：Through Hole
- Package / Case：DO-204AL, DO-41, Axial
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 200 mA
- Grade：-
- Qualification：-
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Overview
The Microchip Technology 1N4751AP/TR12 is a silicon 1.0-watt Zener diode housed in a plastic DO-41 (DO-204AL) axial-lead package. It provides voltage regulation with a nominal Zener voltage of 30V and a standard tolerance of ±5%. The device operates within a temperature range of -65°C to +150°C and features a maximum dynamic impedance of 40 ohms at a test current of 8.5 mA. It is supplied in tape and reel packaging.
Feature Summary
- Provides stable voltage regulation across a broad operating current and temperature range
- Features flexible axial-lead mounting terminals for through-hole applications
- Constructed with a void-free transfer molded thermosetting epoxy body meeting UL94V-0 standards
- Moisture classification is Level 1 per IPC/JEDEC J-STD-020B, requiring no dry pack
Applications
- Voltage regulation circuits
- Reference voltage sources
- Overvoltage protection
Procurement Notes
Verify the specific suffix configuration against official documentation to confirm exact electrical tolerances and packaging details. Ensure compatibility with existing thermal management designs, as power dissipation requires derating above 25°C ambient temperature. Confirm that the tape and reel format aligns with automated assembly equipment specifications.
Selection Notes
Select this component when a 30V reference with 5% tolerance is required in a high-power 1W axial package. Consider the plastic construction for lower thermal resistance compared to glass-body options. Verify that the operating environment stays within the specified -65°C to +150°C range and that surge current limits are respected during transient events.
Part Context
This part belongs to the 1N4728A through 1N4764A series of silicon Zener diodes manufactured by Microsemi, now part of Microchip Technology. The series offers an extensive voltage selection from 3.3V to 100V. The 'P' suffix indicates plastic encapsulation, while the 'TR' suffix denotes tape and reel packaging. These devices are JEDEC registered and available in various military screening levels upon request.
Replacement Considerations
Surface mount equivalents include SMAJ4751A and MLL4751A. Other manufacturers producing JEDEC registered 1N4751A parts may serve as functional substitutes if electrical parameters match.
