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1N4747P/TR12
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Product Detailed Parameters
- Description：DIODE ZENER 20V 1W DO204AL
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：20 V
- Tolerance：±10%
- Power - Max：1 W
- Impedance (Max) (Zzt)：22 Ohms
- Current - Reverse Leakage @ Vr：5 µA @ 15.2 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 1N4747P/TR12 is a silicon 1.0-watt Zener diode in the 1N4728AP through 1N4764AP series, featuring a plastic encapsulated DO-41 or DO-204AL axial-lead package. It provides voltage regulation with a nominal Zener voltage of 20V and a standard tolerance of ±5%. The device operates within a temperature range of -65°C to +150°C and includes a tape and reel option indicated by the TR suffix.
Feature Summary
- Provides stable voltage regulation across a broad operating current and temperature range
- Features flexible axial-lead mounting terminals for standard through-hole applications
- Constructed with a void-free transfer molded thermosetting epoxy body meeting UL94V-0 standards
- Non-sensitive to electrostatic discharge (ESD) per MIL-STD-750 Method 1020
Applications
- Voltage regulation circuits requiring 1W power dissipation
- Reference voltage sources in electronic systems
- Overvoltage protection applications
Procurement Notes
Verify that the part number matches the specific manufacturer's datasheet for the 1N4747P variant. Confirm the presence of the TR suffix indicates tape and reel packaging. Ensure compliance requirements align with the specified material composition and moisture classification level.
Selection Notes
Select this component when a 20V Zener voltage with 5% tolerance is required. Consider the 1.0-watt power rating and the plastic package thermal resistance characteristics. Verify that the axial lead form factor fits the intended PCB layout constraints.
Part Context
This component belongs to the popular 1N4728A through 1N4764A series of 1.0-watt Zener diodes. The series offers an extensive voltage selection from 3.3 to 100 volts. The P suffix designates plastic construction, which provides lower thermal resistance compared to glass-body options for the same JEDEC part numbers.
Replacement Considerations
Surface mount equivalents are available as SMAJ4747A or MLL4747A. Consult the factory for other surface mount options or military screening levels with different prefixes.
