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Product Detailed Parameters
- Description：DIODE CUR REG 100V 517UA 500MW
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Anode - Cathode (Vak)(Max)：100V
- Regulator Current (Max)：517µA
- Voltage - Limiting (Max)：1.05V
- Power - Max：500mW
- Applications：-
- Operating Temperature：-65°C ~ 175°C (TJ)
- Mounting Type：Through Hole
- Package / Case：DO-204AA, DO-7, Axial
- Supplier Device Package：DO-7
- Grade：-
- Qualification：-
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Overview
The 1N5290-1/TR is a current regulator diode manufactured by Microchip Technology. It provides a regulated current of 517 µA with a maximum power dissipation of 500 mW. The device supports a maximum anode-to-cathode voltage (Vak) of 100 V and has a maximum limiting voltage of 1.05 V. It operates within a junction temperature range of -65°C to 175°C. The component is housed in a DO-7 axial leaded package, suitable for through-hole mounting.
Feature Summary
- Provides stable current regulation across a wide voltage range
- Military-grade qualification per MIL-PRF-19500/463 standards
- DO-7 package design features double-plug internal bond connection
Applications
- Constant current sources for LED biasing
- Current limiting protection circuits
- Biasing networks for transistor amplifiers
Procurement Notes
Verify the JAN prefix indicates military grade compliance when sourcing. Confirm the /TR suffix denotes tape and reel packaging. Ensure the manufacturer is identified as Microchip Technology or its predecessor Microsemi for accurate datasheet retrieval. Check specific lot traceability requirements if applicable to the end application.
Selection Notes
Select this component when a precise 517 µA current is required independent of supply voltage variations. The 100 V reverse voltage rating allows flexibility in circuit design compared to lower voltage regulators. Consider the DO-7 package dimensions for PCB layout constraints and thermal management needs in high-temperature environments.
Part Context
This part belongs to the 1N5283-1 through 1N5314-1 series of 0.5 W current regulators. These devices serve as counterparts to Zener diodes, regulating current over a broad voltage range rather than voltage over a broad current range. The series offers various current values from 0.22 mA to 4.7 mA in standard tolerances.
Replacement Considerations
- JAN1N5290-1/TR
FAQ
What is the maximum operating junction temperature?
The maximum operating junction temperature is 175°C.
Does the DO-7 package offer specific internal construction benefits?
Yes, the DO-7 package offers a double-plug internal bond connection with a larger active die element for its unique function as a current limiter.
What is the typical tolerance for the regulated current?
The series typically provides standard 10% tolerances for the regulated current values.
