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1N4930A/TR
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Product Detailed Parameters
- Description：DIODE ZENER 19.2V 500MW DO204AH
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：19.2 V
- Tolerance：±5%
- Power - Max：500 mW
- Impedance (Max) (Zzt)：36 Ohms
- Current - Reverse Leakage @ Vr：-
- Operating Temperature：-55°C ~ 100°C
- Mounting Type：Through Hole
- Package / Case：DO-204AH, DO-35, Axial
- Voltage - Forward (Vf) (Max) @ If：-
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Overview
The Microchip Technology 1N4930A/TR is a temperature-compensated Zener diode designed for precision voltage reference applications. It features a nominal Zener voltage of 19.2 V with a tight tolerance of ±5%. The device operates in the DO-204AH (DO-35) axial through-hole package and dissipates up to 500 mW of power. Key electrical parameters include a maximum reverse leakage current of 15 µA, a Zener impedance of 25 Ohms at a test current of 7.5 mA, and a low voltage temperature coefficient of 0.005 %/°C. It functions within an operating temperature range of -55°C to +100°C.
Feature Summary
- Temperature compensated design ensures stable voltage regulation across varying thermal conditions
- Low voltage temperature coefficient provides high precision for sensitive reference circuits
- Robust axial leaded construction supports reliable through-hole mounting
Applications
- Precision voltage reference sources
- Temperature compensated regulator circuits
- Test and measurement instrumentation
Procurement Notes
Verify the specific suffix TR indicates tape and reel packaging configuration. Confirm RoHS compliance status as documentation may vary by production batch. Ensure the DO-204AH footprint matches the target PCB layout requirements before finalizing procurement orders.
Selection Notes
Select this component when precise voltage stability over temperature is critical. The 19.2 V rating suits mid-range reference needs. Verify that the 500 mW power dissipation capability meets the circuit's thermal load requirements under worst-case operating conditions.
Part Context
This part belongs to the 1N49xx series of temperature-compensated Zener diodes manufactured by Microchip Technology. These components are engineered to minimize drift caused by thermal changes, distinguishing them from standard Zener diodes used in basic clipping or protection roles.
Replacement Considerations
The 1N4930A is the direct equivalent part number. Check datasheets for alternative manufacturers offering matching 19.2 V Zener voltage and similar temperature coefficients.
