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Product Detailed Parameters
- Description：DIODE ZENER 170V 1W DO204AL
- Series：-
- Mfr：Microsemi Corporation
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：170 V
- Tolerance：±20%
- Power - Max：1 W
- Impedance (Max) (Zzt)：1450 Ohms
- Current - Reverse Leakage @ Vr：500 nA @ 130.4 V
- Operating Temperature：-65°C ~ 150°C
- Mounting Type：Through Hole
- Package / Case：DO-204AL, DO-41, Axial
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 200 mA
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Overview
The 1EZ170D/TR12 is a single Zener diode manufactured by Microsemi Corporation. It features a nominal Zener voltage of 170 V with a maximum power dissipation of 1 W. The device exhibits a reverse leakage current of 500 nA at 130.4 V and a forward voltage of 1.2 V at 200 mA. It has a tolerance of ±20% and operates within a temperature range of -65°C to 150°C. The component is housed in an axial DO-204AL (DO-41) package for through-hole mounting.
Feature Summary
- Provides stable voltage regulation at 170 V with high power handling capability of 1 W.
- Designed for robust operation across extreme temperatures ranging from -65°C to 150°C.
- Utilizes a standard axial DO-204AL through-hole package for reliable circuit integration.
Applications
- Voltage reference circuits requiring 170 V stability
- Overvoltage protection in industrial electronics
- Power supply regulation systems
Procurement Notes
Verify the specific suffix TR12 indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status as historical data suggests potential non-compliance for this series. Check manufacturer announcements for end-of-life notifications or obsolescence notices prior to procurement to ensure long-term availability.
Selection Notes
Select this component when a 170 V Zener voltage with 1 W power rating is required. Ensure the application supports through-hole assembly due to the DO-204AL package. Verify that the ±20% voltage tolerance meets the circuit's precision requirements. Consider thermal management capabilities given the 150°C maximum junction temperature limit.
Part Context
This part belongs to the Microsemi 1EZ series of single Zener diodes. These components are designed for general-purpose voltage regulation and protection applications. The series offers various voltage ratings and power dissipation levels, with the 1EZ170D variant specifically targeting higher voltage needs in through-hole designs.
Replacement Considerations
Check for direct substitutes such as 1EZ170D/TR8 which shares identical electrical specifications but differs in packaging format. Verify pinout compatibility and thermal characteristics before substituting any alternative Zener diode from other manufacturers.
