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Product Detailed Parameters
- Description：DIODE ZENER 8.4V 500MW DO7
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：8.4 V
- Tolerance：±5%
- Power - Max：500 mW
- Impedance (Max) (Zzt)：15 Ohms
- Current - Reverse Leakage @ Vr：10 µA @ 5.5 V
- Operating Temperature：-65°C ~ 175°C
- Mounting Type：Through Hole
- Package / Case：DO-204AA, DO-7, Axial
- Voltage - Forward (Vf) (Max) @ If：-
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Overview
The Microchip Technology 1N3156A is a temperature compensated Zener reference diode featuring an 8.4 V nominal voltage with a maximum temperature coefficient of 0.002 %/°C. It operates at a test current of 10 mA, providing minimal voltage change across a -55°C to +150°C range. The device utilizes a hermetically sealed glass DO-7 (DO-204AA) axial-lead package and supports internal metallurgical bonds.
Feature Summary
- Provides stable voltage reference with low temperature drift
- Hermetically sealed glass construction for reliability
- Internal metallurgical bonding for structural integrity
Applications
- Precision instrumentation circuits
- Voltage reference sources requiring thermal stability
- Temperature-compensated measurement systems
Procurement Notes
Verify the specific suffix requirements for military or RoHS compliance when ordering. Confirm that the selected variant matches the required temperature coefficient and tolerance specifications for your application environment. Ensure proper handling procedures are followed due to the hermetic glass packaging.
Selection Notes
Select this component when a stable 8.4 V reference is needed with tight thermal stability. Compare against other series members like 1N3155A or 1N3157A if different temperature coefficients are required. Verify operating current constraints to ensure optimal voltage-temperature stability within the specified power dissipation limits.
Part Context
Part of the 1N3154 through 1N3157A series of Zero-TC Reference Diodes designed for applications demanding minimal voltage change over broad temperature ranges. The series offers various temperature coefficients and tighter voltage tolerances via specific ordering suffixes.
Replacement Considerations
Direct substitutes include other members of the 1N315x series such as 1N3155A or 1N3157A, provided their respective temperature coefficients meet the design requirements. Military equivalents may require JAN prefixes.
FAQ
What is the maximum temperature coefficient for the 1N3156A?
The maximum temperature coefficient is 0.002 %/°C.
What is the recommended operating current for optimal stability?
Optimal voltage-temperature stability is achieved when operated at a test current of 10.0 mA.
