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1N4911/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)：50 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 1N4911/TR is a temperature-compensated Zener diode designed for precision voltage regulation applications. It features a nominal Zener voltage of 12.8 V with a tight tolerance of 5%. The device operates in the DO-7-2 through-hole package and dissipates up to 400 mW of power. Key electrical characteristics include a maximum reverse leakage current of 15 uA, a Zener impedance of 50 Ohms, and a test current of 4 mA. It supports an extended operating temperature range from -65 C to +175 C.
Feature Summary
- Temperature compensated design ensures stable voltage regulation across wide thermal variations
- High reliability construction suitable for demanding industrial and aerospace environments
- Precision voltage reference capability with tight manufacturing tolerances
Applications
- Precision voltage reference circuits requiring low temperature drift
- Industrial control systems operating under extreme thermal conditions
- Aerospace and defense electronic instrumentation
Procurement Notes
Verify the specific suffix designation against official Microchip documentation to confirm tape-and-reel packaging configuration. Ensure the procurement order explicitly matches the required Zener voltage tolerance and package type specifications. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability before finalizing purchase orders.
Selection Notes
Select this component when precise voltage stability is critical over a broad temperature spectrum. The DO-7-2 through-hole format facilitates standard PCB mounting techniques. Evaluate the 400 mW power dissipation limit against circuit load requirements to ensure safe operational margins during continuous use.
Part Context
This device belongs to Microchip's specialized line of temperature-compensated Zener diodes. These components are engineered to minimize voltage drift caused by thermal changes, distinguishing them from standard Zener diodes. The product line targets high-reliability sectors where consistent performance under environmental stress is mandatory.
Replacement Considerations
Consult official Microchip substitution guides for verified equivalent parts. Do not assume functional compatibility with generic Zener diodes lacking temperature compensation features.
