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1N4751P/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：±10%
- 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 1N4751P/TR12 is a silicon 1.0-watt Zener diode in the 1N4728A through 1N4764A series, housed in a plastic DO-41 (DO-204AL) axial-lead package. It provides voltage regulation at a nominal Zener voltage of 30V with a standard tolerance of ±10%. The device operates within a temperature range of -65°C to +150°C and features flexible mounting terminals. The TR12 suffix indicates tape and reel packaging compliant with EIA-296 standards.
Feature Summary
- Provides stable voltage regulation across a broad operating current and temperature range
- Features flexible axial-lead terminals for versatile mounting configurations
- Constructed with a void-free transfer molded thermosetting epoxy body meeting UL94V-0 standards
- Non-sensitive to electrostatic discharge per MIL-STD-750 Method 1020
Applications
- Voltage regulation in power supply circuits
- Reference voltage generation in electronic systems
- Overvoltage protection applications
Procurement Notes
Verify that the ordering suffix matches the required packaging configuration, as the TR12 designation specifically indicates tape and reel supply. Confirm compliance requirements such as RoHS status, which may require an additional e3 suffix on the part number. Ensure the specific manufacturer prefix aligns with intended screening levels if military-grade specifications are necessary for the application.
Selection Notes
Select this component when a 30V regulation point is required with a 10% tolerance. Consider the plastic DO-41 package for lower thermal resistance compared to glass-body options. Evaluate the maximum regulator current and dynamic impedance characteristics against circuit load requirements. Verify that the operating temperature range meets the environmental conditions of the target system.
Part Context
This component belongs to the widely used 1N4728A through 1N4764A series of 1.0-watt Zener diodes manufactured by Microsemi, now part of Microchip Technology. The series offers extensive voltage selection from 3.3V to 100V. The 1N4751 variant specifically targets the 30V regulation segment within this established JEDEC registered lineup.
Replacement Considerations
Surface mount equivalents are available as SMAJ4751A or MLL4751A. Other manufacturers producing JEDEC registered 1N4751 devices may serve as functional substitutes provided electrical parameters and package dimensions are compatible.
