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Product Detailed Parameters
- Description：DIODE ZENER 8.4V 500MW DO7
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- 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：-55°C ~ 100°C
- Mounting Type：Through Hole
- Package / Case：DO-204AA, DO-7, Axial
- Voltage - Forward (Vf) (Max) @ If：-
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Overview
The 1N3155AE3/TR is a temperature-compensated Zener reference diode manufactured by Microchip Technology. It features an 8.4 V nominal Zener voltage with a tight tolerance of 5%. Designed for precision applications, it exhibits a low voltage temperature coefficient of 0.005 %/°C when operated at a test current of 10 mA. The device has a maximum power dissipation of 500 mW and operates within a wide temperature range from -65°C to +175°C. It utilizes a DO-204AA-2 axial leaded package and is supplied in a reel format.
Feature Summary
- Temperature compensated design ensures minimal voltage change across varying thermal conditions
- Hermetically sealed glass construction provides environmental protection
- Low voltage temperature coefficient supports high precision reference requirements
Applications
- Precision voltage reference circuits
- Temperature compensated oscillator references
- High stability power supply regulation
Procurement Notes
Verify the specific suffix configuration against official datasheets to confirm RoHS compliance and packaging type. Ensure the ordering quantity aligns with the manufacturer's reel multiples. Confirm that the intended operating environment falls within the specified temperature range and power dissipation limits before finalizing procurement.
Selection Notes
Select this component when a stable 8.4 V reference is required with superior thermal stability compared to standard Zener diodes. Consider the 500 mW power rating and axial package constraints during PCB layout. Verify compatibility with the target circuit's current drive capabilities to maintain the specified temperature coefficient performance.
Part Context
This part belongs to the 1N3154 through 1N3157A series of Zero-TC Reference Diodes. These devices are engineered to provide a nominal 8.4 V output with exceptionally low temperature coefficients. The series includes various military and commercial qualifications, with the e3 suffix indicating RoHS compliance for the commercial variant.
Replacement Considerations
Direct replacements include other parts from the 1N3154-1N3157A series or equivalent temperature-compensated Zener diodes from Microchip. Verify pinout compatibility and ensure the substitute meets the 8.4 V nominal voltage and low temperature coefficient specifications.
