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 diodes constant 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 drivers and 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 761-8627
Tillv. art.nrLT3092ITS8#TRMPBF
VarumärkeAnalog Devices
42,98 kr
Each
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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
RS-artikelnummer 921-6819
Tillv. art.nrLM234Z-3/NOPB
VarumärkeTexas Instruments
12,315 kr
Each (On a Reel of 1800)
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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 +100 °C
RS-artikelnummer 761-5472
Tillv. art.nrLM234Z-3/NOPB
VarumärkeTexas Instruments
25,358 kr
Each (In a Pack of 5)
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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 +100 °C
RS-artikelnummer 168-9539
Tillv. art.nrAL5809-30QP1-7
VarumärkeDiodesZetex
3,42 kr
Each (On a Reel of 3000)
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Single 30mA 1 60V - - Surface Mount PDI123 2 3 x 1.93 x 1mm 3mm 1.93mm 1mm +150 °C
RS-artikelnummer 121-8832
Tillv. art.nrLM334M/NOPB
VarumärkeTexas Instruments
10,643 kr
Each (In a Tube of 95)
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Single 10mA 1 40V - - Surface Mount SOIC 8 4.9 x 3.9 x 1.45mm 4.9mm 3.9mm 1.45mm +70 °C
RS-artikelnummer 168-9536
Tillv. art.nrAL5809-120QP1-7
VarumärkeDiodesZetex
3,867 kr
Each (On a Reel of 3000)
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Single 120mA 1 60V - - Surface Mount PDI123 2 3 x 1.93 x 1mm 3mm 1.93mm 1mm +150 °C
RS-artikelnummer 535-9098
Tillv. art.nrLM334Z/NOPB
VarumärkeTexas Instruments
8,276 kr
Each (In a Pack of 5)
Enheter
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
RS-artikelnummer 197-7486
Tillv. art.nrREF200AU
VarumärkeTexas Instruments
70,633 kr
Each (In a Tube of 75)
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Single 100µA 3 40V 500MΩ 40V - SOIC 8 - - - - -
RS-artikelnummer 121-8833
Tillv. art.nrLM334Z/NOPB
VarumärkeTexas Instruments
3,679 kr
Each (In a Box of 1800)
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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
RS-artikelnummer 168-9540
Tillv. art.nrAL5809-50QP1-7
VarumärkeDiodesZetex
3,42 kr
Each (On a Reel of 3000)
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Single 50mA 1 60V - - Surface Mount PDI123 2 3 x 1.93 x 1mm 3mm 1.93mm 1mm +150 °C
RS-artikelnummer 133-3335
Tillv. art.nrAL5809-50QP1-7
VarumärkeDiodesZetex
3,951 kr
Each (In a Pack of 20)
Enheter
Single 50mA 1 60V - - Surface Mount PDI123 2 3 x 1.93 x 1mm 3mm 1.93mm 1mm +150 °C
RS-artikelnummer 779-9615
Tillv. art.nrLT3092EST#PBF
VarumärkeAnalog Devices
39,725 kr
Each (In a Pack of 2)
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Single 200mA 1 - - - Surface Mount SOT-223 3 + Tab 6.71 x 3.71 x 1.8mm 6.71mm 3.71mm 1.8mm +125 °C
RS-artikelnummer 535-9082
Tillv. art.nrLM334M/NOPB
VarumärkeTexas Instruments
9,662 kr
Each (In a Pack of 5)
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Single 10mA 1 40V - - Surface Mount SOIC 8 4.9 x 3.9 x 1.45mm 4.9mm 3.9mm 1.45mm +70 °C
RS-artikelnummer 919-9238
Tillv. art.nrLT3092ITS8TRMPBF
VarumärkeAnalog Devices
25,573 kr
Each (On a Reel of 500)
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Single 200mA 1 40V - - Surface Mount SOT-23 8 2.9 x 1.75 x 0.9mm 2.9mm 1.75mm 0.9mm +125 °C
RS-artikelnummer 133-3345
Tillv. art.nrBCR421UW6Q-7
VarumärkeDiodesZetex
2,997 kr
Each (In a Pack of 20)
Enheter
Single 10mA 1 40V - - Surface Mount SOT-26 6 3.1 x 1.7 x 1.3mm 3.1mm 1.7mm 1.3mm +150 °C
RS-artikelnummer 165-8354
Tillv. art.nrAP2502KTR-G1
VarumärkeDiodesZetex
1,195 kr
Each (On a Reel of 3000)
Enheter
Single - 1 6V - - Surface Mount SOT-23 6 3.02 x 1.7 x 1.3mm 3.02mm 1.7mm 1.3mm +85 °C
RS-artikelnummer 133-3331
Tillv. art.nrAL5809-120QP1-7
VarumärkeDiodesZetex
4,346 kr
Each (In a Pack of 20)
Enheter
Single 120mA 1 60V - - Surface Mount PDI123 2 3 x 1.93 x 1mm 3mm 1.93mm 1mm +150 °C
RS-artikelnummer 168-9550
Tillv. art.nrBCR421UW6Q-7
VarumärkeDiodesZetex
2,083 kr
Each (On a Reel of 3000)
Enheter
Single 10mA 1 40V - - Surface Mount SOT-26 6 3.1 x 1.7 x 1.3mm 3.1mm 1.7mm 1.3mm +150 °C
RS-artikelnummer 170-5384
Tillv. art.nrPSSI2021SAY,115
VarumärkeNexperia
2,977 kr
Each (In a Pack of 25)
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Single 50mA 2 75V - 73V Surface Mount SC-88A 5 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm +150 °C
RS-artikelnummer 761-5476
Tillv. art.nrLM234Z-6/NOPB
VarumärkeTexas Instruments
12,306 kr
Each (In a Pack of 5)
Enheter
Single 10mA 1 30V - - Through Hole TO-92 3 5.2 x 4.19 x 5.2mm 5.2mm 4.19mm 5.2mm +100 °C