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 Minimum Dynamic Impedance Maximum Limiting Voltage Mounting Type Package Type Pin Count Dimensions Length Width Height Maximum Operating Temperature
RS-artikelnummer 461-9434
Tillv. art.nrREF200AU
VarumärkeTexas Instruments
81,38 kr
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Complex Array - 3 - - - Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm +85 °C
RS-artikelnummer 761-5472
Tillv. art.nrLM234Z-3/NOPB
VarumärkeTexas Instruments
24,486 kr
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Single - 1 40V - - Through Hole TO-92 3 5.2 x 4.19 x 5.2mm 5.2mm 4.19mm 5.2mm +100 °C
RS-artikelnummer 921-6819
Tillv. art.nrLM234Z-3/NOPB
VarumärkeTexas Instruments
20,602 kr
Each (On a Reel of 1800)
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Single - 1 40V - - Through Hole TO-92 3 5.2 x 4.19 x 5.2mm 5.2mm 4.19mm 5.2mm +100 °C
RS-artikelnummer 121-8832
Tillv. art.nrLM334M/NOPB
VarumärkeTexas Instruments
10,939 kr
Each (In a Tube of 95)
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Single - 1 40V - - Surface Mount SOIC 8 4.9 x 3.9 x 1.45mm 4.9mm 3.9mm 1.45mm +70 °C
RS-artikelnummer 921-6813
Tillv. art.nrLM234Z-6/NOPB
VarumärkeTexas Instruments
9,072 kr
Each (In a Tube of 1800)
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Single - 1 40V - - Through Hole TO-92 3 5.2 x 4.19 x 5.2mm 5.2mm 4.19mm 5.2mm +100 °C
RS-artikelnummer 535-9082
Tillv. art.nrLM334M/NOPB
VarumärkeTexas Instruments
9,574 kr
Each (In a Pack of 5)
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Single - 1 40V - - Surface Mount SOIC 8 4.9 x 3.9 x 1.45mm 4.9mm 3.9mm 1.45mm +70 °C
RS-artikelnummer 121-8833
Tillv. art.nrLM334Z/NOPB
VarumärkeTexas Instruments
3,886 kr
Each (In a Box of 1800)
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Single - 1 40V - - Through Hole TO-92 3 5.2 x 4.19 x 5.2mm 5.2mm 4.19mm 5.2mm +70 °C
Nytt
RS-artikelnummer 197-7487
Tillv. art.nrREF200AU
VarumärkeTexas Instruments
79,82 kr
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Single 100µA 3 40V 500MΩ 40V - SOIC 8 - - - - -
RS-artikelnummer 761-5476
Tillv. art.nrLM234Z-6/NOPB
VarumärkeTexas Instruments
12,304 kr
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Single - 1 30V - - Through Hole TO-92 3 5.2 x 4.19 x 5.2mm 5.2mm 4.19mm 5.2mm +100 °C
RS-artikelnummer 535-9098
Tillv. art.nrLM334Z/NOPB
VarumärkeTexas Instruments
8,086 kr
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Single 10mA 1 40V - - Through Hole TO-92 3 5.2 x 4.19 x 5.2mm 5.2mm 4.19mm 5.2mm +70 °C
Nytt
RS-artikelnummer 197-7486
Tillv. art.nrREF200AU
VarumärkeTexas Instruments
66,07 kr
Each (In a Tube of 75)
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Single 100µA 3 40V 500MΩ 40V - SOIC 8 - - - - -