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1N4912A/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)：25 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 1N4912A/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 operates in a through-hole DO-7-2 package and dissipates up to 400 mW. Key electrical parameters include a maximum reverse leakage current of 15 uA, a Zener impedance of 25 Ohms, and a test current of 7.5 mA. It supports an operating temperature range from -65 C to +175 C and has a voltage temperature coefficient of 0.005 %/C.
Feature Summary
- Temperature compensated design for stable voltage regulation across wide thermal ranges
- High reliability construction suitable for demanding industrial environments
- Low leakage current characteristics for efficient power management
Applications
- Precision voltage reference circuits requiring thermal stability
- Industrial control systems operating under extreme temperatures
- Automotive electronics applications
Procurement Notes
Verify the specific suffix /TR indicates reel packaging when ordering. Confirm the manufacturer part number matches exactly to ensure the correct temperature compensation specifications are met. Check current availability status as production cycles may vary. Ensure the procurement channel provides authentic Microchip Technology components to guarantee performance reliability.
Selection Notes
Select this component when a stable 12.8 V reference is needed with minimal drift over temperature. The DO-7-2 through-hole package suits standard PCB mounting techniques. Consider the 400 mW power dissipation limit during circuit design. Verify that the 5% voltage tolerance meets the system requirements for precision applications.
Part Context
This part belongs to Microchip's discrete diode portfolio, specifically within the Zener diode category. It is designed for applications requiring robust voltage regulation. The product line emphasizes durability and consistent performance in harsh conditions, supporting various electronic industries including automotive and industrial sectors.
Replacement Considerations
Consult official substitution guides for compatible alternatives. Ensure any replacement maintains the same voltage, package type, and temperature compensation characteristics.
