E-102

Current Regulation - Diodes, Transistors Overview

The Semitec E-102 is a leaded current regulating diode (CRD) designed to maintain a constant current flow despite voltage fluctuations. It operates within a wide voltage range from less than 1V to 100V, supplying constant current regardless of applied voltage changes, load resistance variations, or ripple voltage. The device features a pinch-off current of 1.0 mA at 10V, with a typical limiting current of 1.7 mA and a maximum reverse current of 50 mA. Rated for 300 mW power dissipation, it supports an operating temperature range of -30°C to 150°C and a junction temperature up to 150°C.

Current Regulation - Diodes, Transistors Feature Summary

• Maintains constant current across a wide voltage range without external components
• Provides stable current output independent of load resistance changes and ripple voltage
• Utilizes a construction similar to junction field-effect transistors for consistent regulation

Current Regulation - Diodes, Transistors Applications

• Constant current source for LED brightness stabilization
• LED street lights, fluorescent lamps, bulbs, and downlights
• Constant voltage circuit for supplying constant current to Zener diodes
• Battery charge and discharge circuits
• Current source for piezoelectric actuators

Current Regulation - Diodes, Transistors Procurement Notes

Verify the specific ordering suffix to confirm packaging type, as the E-series offers untaped bulk, axial taping in Z-fold or reel formats, and varying minimum order quantities based on the selected packing method. Ensure the component meets RoHS compliance requirements if applicable to your manufacturing standards. Cross-reference the lot number and pinout orientation during assembly to prevent installation errors.

Current Regulation - Diodes, Transistors Selection Notes

Select the E-102 when a 1.0 mA constant current is required in through-hole applications. Consider the 300 mW rated power and -30°C to 150°C operating temperature range for environmental compatibility. For higher power handling or surface-mount needs, evaluate the S-series counterparts like the S-102T, which offer 500 mW ratings and different thermal characteristics.