E-101

Current Regulation - Diodes, Transistors Overview

The Semitec E-101 is a leaded current regulating diode (CRD) designed to maintain a constant current flow despite voltage fluctuations. It operates within a temperature range of -30°C to +150°C and features a rated power of 300 mW with a maximum rated voltage of 100 V. The device exhibits a typical pinch-off current of 0.10 mA, with a minimum limit of 0.05 mA and a maximum of 0.21 mA at 10 V. The limiting current ratio (I100V/Ip) ranges from 0.8 to 1.1, and the temperature coefficient varies between +0.10% and -0.10% per °C.

Current Regulation - Diodes, Transistors Feature Summary

• Maintains constant current output across a wide voltage range from less than 1V to 100V
• Simplifies circuit design by replacing multiple components required for constant current generation
• Operates reliably under varying load resistance changes and ripple voltage conditions

Current Regulation - Diodes, Transistors Applications

• Constant current source for LED brightness stabilization
• Battery charge and discharge circuits
• Telecommunications line interface
• Current source for piezoelectric actuators

Current Regulation - Diodes, Transistors Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packaging type, as standard bulk products lack markings while taped versions utilize specific width and folding configurations. Confirm compliance requirements such as RoHS status directly from the manufacturer's datasheet before procurement.

Current Regulation - Diodes, Transistors Selection Notes

Select the E-101 when a low pinch-off current near 0.1 mA is required for precision applications. Ensure the operating environment stays within the -30°C to +150°C range and that the applied voltage does not exceed the 100 V rating. Consider thermal derating if ambient temperatures approach the upper operational limits.

Current Regulation - Diodes, Transistors Part Context

The E-101 belongs to Semitec’s E series of axial leaded current regulating diodes. This series is engineered for stable current regulation in compact electronic designs. It serves as a direct component alternative to more complex multi-component constant current circuits, offering a simplified solution for various industrial and consumer electronics applications.

Current Regulation - Diodes, Transistors Replacement Considerations

The S-101T is the surface-mount equivalent of the E-101. Verify pinout orientation and mounting dimensions when transitioning between leaded and SMD packages. Ensure the replacement part meets the same electrical specifications for pinch-off current and voltage ratings.