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Product Detailed Parameters
- Description：DIODE ZENER 190V 1W DO204AL
- Series：-
- Mfr：Microsemi Corporation
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：190 V
- Tolerance：±20%
- Power - Max：1 W
- Impedance (Max) (Zzt)：1700 Ohms
- Current - Reverse Leakage @ Vr：500 nA @ 144.8 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 1EZ190D/TR12 is a single Zener diode manufactured by Microsemi Corporation, designed for voltage regulation applications. It features a nominal Zener voltage of 190 V with a tolerance of ±20%. The device has a maximum power dissipation rating of 1 W and operates within a temperature range of -65°C to 150°C. It utilizes a DO-204AL (DO-41) axial leaded plastic package suitable for through-hole mounting. Key electrical characteristics include a reverse leakage current of 500 nA at 144.8 V, a forward voltage of 1.2 V at 200 mA, and a maximum impedance of 1700 Ohms.
Feature Summary
- Provides stable voltage regulation in the 190 V range with standard tolerance.
- Constructed with a silicon junction for reliable unidirectional operation.
- Encapsulated in a durable plastic DO-41 axial package for through-hole integration.
Applications
- Voltage reference circuits requiring 190 V stability
- Overvoltage protection for sensitive electronic components
- General-purpose voltage regulation in industrial equipment
Procurement Notes
Verify component authenticity against official Microsemi documentation due to discontinued status. Confirm package integrity and lead condition upon receipt. Ensure storage conditions maintain moisture sensitivity level 1 compliance. Cross-reference datasheet parameters for critical design requirements before implementation.
Selection Notes
Select this component when a 190 V Zener voltage with ±20% tolerance is required. Consider the 1 W power rating and axial DO-41 package for through-hole designs. Evaluate thermal management needs given the wide operating temperature range. Verify compatibility with circuit impedance and leakage current specifications.
Part Context
This part belongs to the 1EZ series of axial-leaded Zener diodes from Microsemi. The series offers various voltage options in a plastic DO-41 package. The 'D' suffix indicates a specific tolerance level, while '/TR12' denotes tape and reel packaging. This series supports general commercial and industrial voltage regulation tasks.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided source material. Consult Microsemi or authorized distributors for current equivalent recommendations.
