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Product Detailed Parameters
- Description：DIODE CUR REG 100V 1.98MA 475MW
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Anode - Cathode (Vak)(Max)：100V
- Regulator Current (Max)：1.98mA
- Voltage - Limiting (Max)：1.75V
- Power - Max：475mW
- Applications：-
- Operating Temperature：-55°C ~ 175°C
- Mounting Type：Through Hole
- Package / Case：DO-204AA, DO-7, Axial
- Supplier Device Package：DO-7
- Grade：-
- Qualification：-
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Overview
The Microchip Technology 1N5304/TR is a current regulator diode designed for stable current control across varying voltage conditions. It operates within a peak working voltage of 100 V and maintains a maximum regulator current of 1.98 mA. The device features a power dissipation rating of 475 mW and utilizes a DO-7 (DO-204AA) axial through-hole package. It supports an extended operating temperature range from -55 °C to +175 °C. Key electrical characteristics include a maximum limiting voltage of 1.75 V, a minimum dynamic impedance of 420 µΩ, and it is supplied in a reel packaging format.
Feature Summary
- Provides constant current regulation over a broad voltage range
- Utilizes double-plug internal bond connection for reliability
- Supports high-temperature operation up to 175 °C
Applications
- Current limiting circuits
- Biasing elements for active components
- Constant current sources for LED or transistor drives
Procurement Notes
Verify the specific ordering suffix against official Microchip documentation to confirm package type and tape-and-reel specifications. Ensure the component meets required MIL-PRF-19500/463 qualification levels if applicable to the design. Confirm RoHS status and lead-free availability directly with the manufacturer or authorized distributors prior to procurement.
Selection Notes
Select this component when a stable current source is required independent of voltage fluctuations within the specified limits. Consider the 1.98 mA nominal current and 475 mW power dissipation for thermal management. Evaluate the DO-7 package constraints for PCB layout and ensure the operating temperature range aligns with environmental requirements.
Part Context
This part belongs to the 1N5283-1 through 1N5314-1 series of 0.5 W current regulators offered by Microchip. These devices serve as counterparts to Zener diodes, regulating current rather than voltage. The series provides various current options in standard axial-leaded packages suitable for general-purpose and military applications.
Replacement Considerations
Consult official cross-reference data for compatible parts. Verify that substitute components match the 1.98 mA current rating, 100 V peak voltage, and DO-7 package dimensions. Ensure equivalent impedance and temperature performance characteristics are maintained.
