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.


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Beskrivning Pris Diode Configuration Maximum Regulator Current Number of Elements per Chip Maximum Peak Operating Voltage Maximum Limiting Voltage Mounting Type Package Type Pin Count Dimensions Length Width Height Maximum Operating Temperature Minimum Operating Temperature
RS-artikelnummer 761-8627
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VarumärkeAnalog Devices
57,49 kr
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Single - 1 40V - Surface Mount SOT-23 8 2.9 x 1.75 x 0.9mm 2.9mm 1.75mm 0.9mm +125 °C -40 °C
RS-artikelnummer 858-0898
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VarumärkeAnalog Devices
38,402 kr
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Single - 1 40V - Surface Mount TSOT-23 8 2.9 x 1.75 x 0.9mm 2.9mm 1.75mm 0.9mm +125 °C -40 °C
RS-artikelnummer 919-9238
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VarumärkeAnalog Devices
44,745 kr
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Single - 1 40V - Surface Mount SOT-23 8 2.9 x 1.75 x 0.9mm 2.9mm 1.75mm 0.9mm +125 °C -40 °C
RS-artikelnummer 156-5698
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VarumärkeAnalog Devices
40,569 kr
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Single - 1 40V - Surface Mount TSOT-23 8 2.9 x 1.75 x 0.9mm 2.9mm 1.75mm 0.9mm +125 °C -40 °C
RS-artikelnummer 920-0060
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VarumärkeAnalog Devices
45,936 kr
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Single - 1 - - Surface Mount SOT-223 3 + Tab 6.71 x 3.71 x 1.6984mm 6.71mm 3.71mm 1.698mm +125 °C -40 °C
RS-artikelnummer 822-5869
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VarumärkeAnalog Devices
50,565 kr
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Single - 1 - - Surface Mount SOT-223 3 + Tab 6.71 x 3.71 x 1.6984mm 6.71mm 3.71mm 1.698mm +125 °C -40 °C
RS-artikelnummer 779-9615
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VarumärkeAnalog Devices
45,705 kr
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Single - 1 - - Surface Mount SOT-223 3 + Tab 6.71 x 3.71 x 1.8mm 6.71mm 3.71mm 1.8mm +125 °C -40 °C
RS-artikelnummer 822-5901
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VarumärkeAnalog Devices
47,875 kr
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Single - 1 - - Surface Mount DFN 8 3 x 3 x 0.75mm 3mm 3mm 0.75mm +125 °C -40 °C
RS-artikelnummer 145-0208
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VarumärkeAnalog Devices
41,562 kr
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Single - 1 - - Surface Mount SOT-223 3 + Tab 6.71 x 3.71 x 1.8mm 6.71mm 3.71mm 1.8mm +125 °C -40 °C
RS-artikelnummer 155-7505
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VarumärkeAnalog Devices
43,552 kr
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Single - 1 - - Surface Mount DFN 8 3 x 3 x 0.75mm 3mm 3mm 0.75mm +125 °C -40 °C