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1N4907/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)：100 Ohms
- Current - Reverse Leakage @ Vr：-
- Operating Temperature：-25°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 Microchip Technology 1N4907/TR is a temperature-compensated Zener diode housed in a DO-7 (DO-204AA) axial through-hole package. It features a nominal Zener voltage of 12.8 V with a tolerance of ±5%. The device is rated for a maximum power dissipation of 400 mW and exhibits a Zener impedance of 100 Ohms. It operates reliably within an ambient temperature range from -65°C to +175°C, ensuring stable voltage regulation across wide thermal variations.
Feature Summary
- Temperature compensated design for stable voltage regulation across varying thermal conditions
- Single configuration suitable for precision reference applications
- Robust axial leaded construction for reliable through-hole mounting
Applications
- Precision voltage reference circuits requiring thermal stability
- Temperature compensation networks in analog systems
- Overvoltage protection in sensitive electronic components
Procurement Notes
Verify the specific suffix TR indicates tape and reel packaging when ordering. Confirm RoHS compliance status as some variants may be non-RoHS. Ensure the DO-7 package dimensions match your PCB footprint requirements. Check for any country-of-origin restrictions if applicable to your supply chain policies.
Selection Notes
Select this component when a stable 12.8 V reference is needed under fluctuating temperatures. The 400 mW rating supports moderate current loads. Compare against standard Zener diodes if thermal drift is a critical design constraint. Ensure the operating temperature range meets the environmental demands of the final assembly.
Part Context
This part belongs to Microchip's discrete semiconductor diode portfolio, specifically within the Zener diode category. It is manufactured by Microchip Technology, which acquired Micrel. The 1N4907 series is designed for applications demanding higher stability than standard Zener diodes provide.
Replacement Considerations
Direct substitutes must match the 12.8 V Zener voltage, 400 mW power rating, and temperature-compensated characteristic. Verify pinout compatibility for DO-7 packages. Cross-reference with other manufacturers' temperature-compensated Zener diodes if Microchip availability is limited.
