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Product Detailed Parameters
- Description：100V 1.6MA TH DIODE-CURRENT LIMI
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Tape & Reel (TR)
- Voltage - Anode - Cathode (Vak)(Max)：100V
- Regulator Current (Max)：1.84mA
- Voltage - Limiting (Max)：1.65V
- 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 1N5303 TR TIN/LEAD is a silicon current regulator diode manufactured by Central Semiconductor Corp. It features a regulated current of 1.6mA and a limiting voltage of 1.65V. The device is housed in a hermetically sealed DO-35 glass package with two terminals. It operates within a temperature range of -65°C to 200°C. This component is classified as high reliability and is not RoHS compliant.
Feature Summary
- Hermetically sealed glass construction for environmental protection
- High reliability design suitable for demanding applications
- Constant current regulation capability
Applications
- Current limiting circuits
- Biasing networks for transistors and integrated circuits
- Constant current sources for LED drivers
Procurement Notes
Verify the specific suffix 'TR' against the manufacturer's official datasheet to confirm tape-and-reel packaging versus bulk supply. Confirm that the tin/lead composition aligns with project requirements, as this variant is explicitly non-RoHS compliant. Ensure the DO-35 package dimensions match the PCB footprint design before ordering.
Selection Notes
Select this component when a stable 1.6mA current reference is required in harsh environments. The wide operating temperature range up to 200°C supports high-heat applications. Verify that the 1.65V limiting voltage is compatible with the downstream circuit's headroom requirements. Consider the hermetic seal if moisture resistance is critical.
Part Context
This part belongs to the 1N5303 series of current regulator diodes from Central Semiconductor. These devices are designed to maintain a constant current over a wide range of voltages. The tin/lead finish indicates a traditional plating option, distinct from lead-free alternatives. The DO-35 package is a standard axial-leaded form factor for through-hole mounting.
Replacement Considerations
Check for equivalents such as the CRD1.6 or similar 1.6mA current regulator diodes in DO-35 packages. Ensure replacement parts meet the same hermetic sealing and high-reliability standards if applicable. Verify thermal characteristics and voltage limits match the original design specifications.
