Constant Current Diodes

A constant current diode, also called a current limiting diode (CLD), is an electronic device that regulates or limits current to a maximum value. This is important as it protects your circuit from harmful effects in the event of a short-circuit.

How do constant current diodes work?

Constant current diodes are made from a junction field effect transistor, the simplest type of three-terminal semiconductor transistor which functions like a current limiter. They allow the current running through them to rise to a certain point and level off at a specific value. Unlike zener diodesconstant current diodes maintain a constant current instead of the constant voltage.

Applications for constant current diodes

Constant current diodes can be used in several circuit applications. Examples of devices using constant current diodes include waveform generator circuits, timing circuits and battery chargers. Constant current diodes can also be used as a constant current source for LED driversand can be used to replace holding coils in telephone connection devices.


...
Read more Read less

Filters

Viewing 41 - 49 of 49 products
Results per page
Description Price Diode Configuration Maximum Regulator Current Number of Elements per Chip Maximum Peak Operating Voltage Minimum Dynamic Impedance Maximum Limiting Voltage Mounting Type Package Type Pin Count Dimensions Length Width Height Maximum Operating Temperature
RS Stock No. 168-9536
Mfr. Part No.AL5809-120QP1-7
MYR1.483
Each (On a Reel of 3000)
units
Single - 1 60V - - Surface Mount PDI123 2 3 x 1.93 x 1mm 3mm 1.93mm 1mm +150 °C
RS Stock No. 121-8832
Mfr. Part No.LM334M/NOPB
MYR4.733
Each (In a Tube of 95)
units
Single - 1 40V - - Surface Mount SOIC 8 4.9 x 3.9 x 1.45mm 4.9mm 3.9mm 1.45mm +70 °C
RS Stock No. 464-5326
Mfr. Part No.E-153
BrandSEMITEC
MYR9.262
Each (In a Pack of 5)
units
Single - 1 25V 0.03MΩ 4.3V Through Hole - 2 3.9 x 1.8 x 1.8mm 3.9mm 1.8mm 1.8mm +150 °C
RS Stock No. 253-847
Mfr. Part No.E-123
BrandSEMITEC
MYR9.262
Each (In a Pack of 5)
units
Single - 1 30V 0.08MΩ 3.8V Through Hole - 2 3.9 x 1.8 x 1.8mm 3.9mm 1.8mm 1.8mm +150 °C
RS Stock No. 133-3345
Mfr. Part No.BCR421UW6Q-7
MYR1.40
Each (In a Pack of 20)
units
Single - 1 40V - - Surface Mount SOT-26 6 3.1 x 1.7 x 1.3mm 3.1mm 1.7mm 1.3mm +150 °C
RS Stock No. 133-3335
Mfr. Part No.AL5809-50QP1-7
MYR1.85
Each (In a Pack of 20)
units
Single - 1 60V - - Surface Mount PDI123 2 3 x 1.93 x 1mm 3mm 1.93mm 1mm +150 °C
RS Stock No. 168-9539
Mfr. Part No.AL5809-30QP1-7
MYR1.312
Each (On a Reel of 3000)
units
Single - 1 60V - - Surface Mount PDI123 2 3 x 1.93 x 1mm 3mm 1.93mm 1mm +150 °C
RS Stock No. 858-0898
Mfr. Part No.LT3092ETS8#TRMPBF
MYR17.592
Each (In a Pack of 5)
units
Single - 1 40V - - Surface Mount TSOT-23 8 2.9 x 1.75 x 0.9mm 2.9mm 1.75mm 0.9mm +125 °C
RS Stock No. 693-4031
Mfr. Part No.S-103T
BrandSEMITEC
MYR2.719
Each (In a Pack of 10)
units
Single 12mA 1 50V - 3.5V Surface Mount SMD 2 2.6 x 1.6 x 0.7mm 2.6mm 1.6mm 0.7mm +150 °C
Related Products
A range of Schottky Rectifiers from Vishay Semiconductor. ...
Description:
A range of Schottky Rectifiers from Vishay Semiconductor. These diodes exhibit very low forward voltage drop with a very fast switching action. The reverse recovery times of Schottky diodes are extremely short and they are suitable for applications requiring fast ...
Schottky Rectifiers are semiconductor diodes that exhibit very ...
Description:
Schottky Rectifiers are semiconductor diodes that exhibit very low forward voltage drop with a very fast switching action. The reverse recovery times of Schottky diodes are extremely quick. Schottky diodes are suitable for applications requiring fast switching and low power ...
Schottky Rectifiers are semiconductor diodes that exhibit very ...
Description:
Schottky Rectifiers are semiconductor diodes that exhibit very low forward voltage drop with a very fast switching action. The reverse recovery times of Schottky diodes are extremely quick. Schottky diodes are suitable for applications requiring fast switching and low power ...
Schottky Rectifiers are semiconductor diodes that exhibit very ...
Description:
Schottky Rectifiers are semiconductor diodes that exhibit very low forward voltage drop with a very fast switching action. The reverse recovery times of Schottky diodes are extremely quick. Schottky diodes are suitable for applications requiring fast switching and low power ...