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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Description Prix 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
N° de stock RS 156-5698
Référence fabricantLT3092ETS8#TRMPBF
2,158 €
Each (On a Reel of 500)
Unité
Single - 1 40V - - Surface Mount TSOT-23 8 2.9 x 1.75 x 0.9mm 2.9mm 1.75mm 0.9mm +125 °C
N° de stock RS 155-7505
Référence fabricantLT3092IDD#PBF
2,317 €
Each (In a Tube of 121)
Unité
Single - 1 - - - Surface Mount DFN 8 3 x 3 x 0.75mm 3mm 3mm 0.75mm +125 °C
N° de stock RS 145-0208
Référence fabricantLT3092EST#PBF
3,241 €
Each (In a Tube of 78)
Unité
Single - 1 - - - Surface Mount SOT-223 3 + Tab 6.71 x 3.71 x 1.8mm 6.71mm 3.71mm 1.8mm +125 °C
N° de stock RS 822-5869
Référence fabricantLT3092IST#PBF
4,495 €
Each (In a Pack of 2)
Unité
Single - 1 - - - Surface Mount SOT-223 3 + Tab 6.71 x 3.71 x 1.6984mm 6.71mm 3.71mm 1.698mm +125 °C
N° de stock RS 168-9539
Référence fabricantAL5809-30QP1-7
MarqueDiodesZetex
0,187 €
Each (On a Reel of 3000)
Unité
Single - 1 60V - - Surface Mount PDI123 2 3 x 1.93 x 1mm 3mm 1.93mm 1mm +150 °C
N° de stock RS 168-9540
Référence fabricantAL5809-50QP1-7
MarqueDiodesZetex
0,268 €
Each (On a Reel of 3000)
Unité
Single - 1 60V - - Surface Mount PDI123 2 3 x 1.93 x 1mm 3mm 1.93mm 1mm +150 °C
N° de stock RS 858-0898
Référence fabricantLT3092ETS8#TRMPBF
4,064 €
Each (In a Pack of 5)
Unité
Single - 1 40V - - Surface Mount TSOT-23 8 2.9 x 1.75 x 0.9mm 2.9mm 1.75mm 0.9mm +125 °C
N° de stock RS 165-8354
Référence fabricantAP2502KTR-G1
MarqueDiodesZetex
0,118 €
Each (On a Reel of 3000)
Unité
Single - 1 6V - - Surface Mount SOT-23 6 3.02 x 1.7 x 1.3mm 3.02mm 1.7mm 1.3mm +85 °C
N° de stock RS 133-3331
Référence fabricantAL5809-120QP1-7
MarqueDiodesZetex
0,442 €
Each (In a Pack of 20)
Unité
Single - 1 60V - - Surface Mount PDI123 2 3 x 1.93 x 1mm 3mm 1.93mm 1mm +150 °C
N° de stock RS 133-3334
Référence fabricantAL5809-30QP1-7
MarqueDiodesZetex
0,403 €
Each (In a Pack of 20)
Unité
Single - 1 60V - - Surface Mount PDI123 2 3 x 1.93 x 1mm 3mm 1.93mm 1mm +150 °C
N° de stock RS 535-9082
Référence fabricantLM334M/NOPB
0,926 €
Each (In a Pack of 5)
Unité
Single - 1 40V - - Surface Mount SOIC 8 4.9 x 3.9 x 1.45mm 4.9mm 3.9mm 1.45mm +70 °C
N° de stock RS 170-4833
Référence fabricantPSSI2021SAY,115
MarqueNexperia
0,117 €
Each (On a Reel of 3000)
Unité
Single 50mA 2 75V - 73V Surface Mount SC-88A 5 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm +150 °C
N° de stock RS 822-5901
Référence fabricantLT3092IDD#PBF
3,91 €
Each (In a Pack of 2)
Unité
Single - 1 - - - Surface Mount DFN 8 3 x 3 x 0.75mm 3mm 3mm 0.75mm +125 °C