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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 1EZ170DE3/TR12 is a single Zener diode manufactured by Microsemi Corporation. It features a nominal Zener voltage of 170 V with a power dissipation rating of 3 W. The device utilizes a DO-204AL (DO-41) axial leaded package for through-hole mounting. Electrical characteristics include a maximum impedance of 650 Ohms and a reverse leakage current of 500 nA at 130.4 V. The forward voltage is specified as 1.2 V at 200 mA. The component operates within a temperature range of -65°C to 150°C and carries an RoHS compliance designation.
Feature Summary
- Provides stable voltage regulation in the 170 V range for circuit protection applications
- Constructed with a glass body encapsulation suitable for high-temperature environments
- Designed for through-hole mounting using standard axial lead terminals
Applications
- Voltage reference circuits requiring 170 V stabilization
- Overvoltage protection in industrial electronic systems
- Power supply regulation modules
Procurement Notes
Verify the specific manufacturer source, as Microsemi's semiconductor assets were acquired by Microchip Technology. Confirm that the part number suffix corresponds to the correct tape-and-reel packaging format. Ensure compatibility with existing design specifications regarding thermal resistance and lead configuration before finalizing procurement orders.
Selection Notes
Select this component when a 3 W axial Zener diode is required for high-voltage regulation tasks. Compare the 650 Ohm impedance against load requirements to ensure adequate regulation performance. Verify that the DO-41 package dimensions fit the target PCB layout and that the operating temperature range meets environmental constraints.
Part Context
This component belongs to the Microsemi 3EZ series of 3-watt Zener diodes. These devices are engineered for robust performance in demanding electronic applications. The series offers various voltage options within the same physical footprint, allowing for flexible design integration while maintaining consistent electrical characteristics across the product line.
Replacement Considerations
Direct substitutes may include other 170 V, 3 W axial Zener diodes from manufacturers such as Vishay or ON Semiconductor. Verify pinout compatibility and thermal ratings when considering alternative brands.
