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1N4898A/TR
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Product Detailed Parameters
- Description：DIODE ZENER 12.8V 400MW DO7
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：12.8 V
- Tolerance：±5%
- Power - Max：400 mW
- Impedance (Max) (Zzt)：400 Ohms
- Current - Reverse Leakage @ Vr：-
- Operating Temperature：-55°C ~ 100°C
- Mounting Type：Through Hole
- Package / Case：DO-204AA, DO-7, Axial
- Voltage - Forward (Vf) (Max) @ If：-
- Grade：-
- Qualification：-
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Overview
The 1N4898A/TR is a temperature-compensated Zener diode manufactured by Microchip Technology. It features a nominal Zener voltage of 12.8 V with a tolerance of ±5%. The device has a maximum power dissipation of 400 mW and a maximum Zener impedance of 400 Ohms. It operates within a temperature range of -65°C to +175°C. The component utilizes a DO-7 axial through-hole package and is supplied in a reel format.
Feature Summary
- Temperature compensated design for stable voltage regulation across wide thermal ranges
- Single configuration suitable for precision reference applications
- Through-hole mounting capability for robust mechanical integration
Applications
- Precision voltage reference circuits
- Temperature-stable voltage regulation systems
- Overvoltage protection in sensitive electronic equipment
Procurement Notes
Verify the specific suffix TR indicates tape and reel packaging when ordering. Confirm the manufacturer part number matches exactly, as variations may exist. Check RoHS compliance status if required for your assembly process. Ensure the supplier provides valid traceability documentation for quality assurance purposes.
Selection Notes
Select this component when a stable 12.8 V reference is required under varying thermal conditions. The low temperature coefficient makes it superior to standard Zener diodes for precision analog circuits. Ensure the circuit current does not exceed the maximum power dissipation limits for the chosen operating environment.
Part Context
This component belongs to the 1N489x series of temperature-compensated Zener diodes from Microchip Technology. These devices are engineered to minimize voltage drift over temperature, offering higher accuracy than conventional Zener diodes. The series is widely used in instrumentation and measurement applications requiring high stability.
Replacement Considerations
Direct substitutes include other temperature-compensated Zener diodes with similar voltage and power ratings. Verify pinout compatibility and package dimensions before substitution. Cross-reference specifications such as impedance and leakage current to ensure functional equivalence.
