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1N4690 (DO35)
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Product Detailed Parameters
- Description：DIODE ZENER 5.6V 500MW DO204AH
- Series：-
- Mfr：Microsemi Corporation
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：5.6 V
- Tolerance：±5%
- Power - Max：500 mW
- Impedance (Max) (Zzt)：-
- Current - Reverse Leakage @ Vr：10 µA @ 4 V
- Operating Temperature：-65°C ~ 175°C
- Mounting Type：Through Hole
- Package / Case：DO-204AH, DO-35, Axial
- Voltage - Forward (Vf) (Max) @ If：1.1 V @ 200 mA
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Overview
The Microsemi 1N4690 is a silicon Zener diode with a nominal voltage of 5.6V and a power dissipation rating of 0.5W. It utilizes the DO-35 (DO-204AH) glass axial-leaded package. The device features a unidirectional configuration and isolated case connection. Standard tolerance variants include 5%, 2%, and 1% options, while the -1 suffix denotes an internal metallurgical bond construction.
Feature Summary
- Internal metallurgical bond construction for enhanced reliability
- Hermetically sealed glass axial-leaded DO-35 package
- Wide selection of standard and tight voltage tolerances
Applications
- Voltage regulation in broad operating current ranges
- Temperature compensation circuits
- Reference voltage generation in high-reliability systems
Procurement Notes
Verify the specific suffix to confirm tolerance and construction type. The base part number indicates standard commercial specifications. Suffixes such as -1 denote metallurgically bonded versions suitable for military qualification. Confirm RoHS compliance status based on the e3 suffix if required. Ensure the package code matches the DO-35 requirement for your assembly process.
Selection Notes
Select the appropriate tolerance suffix based on circuit precision requirements. Choose the -1 variant when metallurgical bonding is necessary for environmental stability. Verify that the 0.5W power rating accommodates the maximum expected dissipation at elevated temperatures. Consider the DO-35 package dimensions for board layout constraints.
Part Context
This component belongs to the 1N4678 through 1N4717 series of 0.5-watt Zener voltage regulators. The series provides voltages from 1.8 to 43 volts. These devices are designed for applications requiring stable reference voltages in compact axial packages. The manufacturer offers screening options for military qualifications upon request.
Replacement Considerations
Equivalent parts include the 1N4690B for tighter tolerance requirements. The 1N4690C variant offers a 2% tolerance option. For surface mount applications, consider the 1N4690DUR in the MELF package. Verify pinout compatibility before substitution.
