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Product Detailed Parameters
- Description：100V .27MA TH DIODE-CURRENT LIMI
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Tape & Reel (TR)
- Voltage - Anode - Cathode (Vak)(Max)：100V
- Regulator Current (Max)：311µA
- Voltage - Limiting (Max)：1V
- Power - Max：600mW
- Applications：LED Driver
- Operating Temperature：-65°C ~ 200°C (TJ)
- Mounting Type：Through Hole
- Package / Case：DO-204AH, DO-35, Axial
- Supplier Device Package：DO-35
- Grade：-
- Qualification：-
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Overview
The Central Semiconductor Corp 1N5285 TR TIN/LEAD is a silicon current regulator diode housed in a DO-35 glass package. It provides a nominal regulation current of 0.27 mA with a maximum limiting voltage of 1 V and a peak operating voltage of 100 V. The device dissipates up to 600 mW and operates within a temperature range of -55 °C to +175 °C. This tin/lead plated variant is supplied in reel packaging for automated surface-mount or through-hole processing.
Feature Summary
- Maintains constant current output independent of voltage fluctuations
- Hermetically sealed glass construction for environmental protection
- Tin/lead plating compatible with traditional soldering processes
Applications
- Constant current sources for LED driving circuits
- Biasing elements in transistor amplifier stages
- Current limiting protection in sensitive electronic loads
Procurement Notes
Verify the specific ordering suffix requirements for tin/lead plating directly with Central Semiconductor Corp, as standard RoHS-compliant versions may differ. Confirm that the reel quantity matches your assembly line specifications. Ensure the DO-35 package dimensions align with your PCB footprint design before finalizing procurement orders to avoid mechanical integration issues.
Selection Notes
Select this component when a stable low-current reference of 0.27 mA is required without complex circuitry. The DO-35 package suits applications where hermetic sealing is critical. Consider the 100 V peak voltage rating for high-voltage biasing scenarios. Tin/lead plating is necessary only if lead-free compliance is not mandated by regulatory standards for the target market.
Part Context
This part belongs to the 1N52xx series of current regulator diodes manufactured by Central Semiconductor Corp. These devices utilize silicon junction technology to provide reliable current regulation. The series offers various current ratings, with the 1N5285 specifically targeting the 0.27 mA niche. The tin/lead variant serves legacy manufacturing environments requiring non-RoHS compliant terminations.
Replacement Considerations
Equivalent parts include the Microchip 1N5285 and Aeroflex 1N5285CO. Verify pinout compatibility and thermal characteristics when substituting. Note that some alternatives may offer lead-free terminations instead of tin/lead.
