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 461-9434
Référence fabricantREF200AU
7,72 €
Each
Unité
Complex Array - 3 - - - Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm +85 °C
N° de stock RS 121-8833
Référence fabricantLM334Z/NOPB
0,358 €
Each (In a Box of 1800)
Unité
Single - 1 40V - - Through Hole TO-92 3 5.2 x 4.19 x 5.2mm 5.2mm 4.19mm 5.2mm +70 °C
N° de stock RS 535-9098
Référence fabricantLM334Z/NOPB
0,782 €
Each (In a Pack of 5)
Unité
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
N° de stock RS 761-5476
Référence fabricantLM234Z-6/NOPB
1,19 €
Each (In a Pack of 5)
Unité
Single - 1 30V - - Through Hole TO-92 3 5.2 x 4.19 x 5.2mm 5.2mm 4.19mm 5.2mm +100 °C
N° de stock RS 921-6813
Référence fabricantLM234Z-6/NOPB
0,877 €
Each (In a Tube of 1800)
Unité
Single - 1 40V - - Through Hole TO-92 3 5.2 x 4.19 x 5.2mm 5.2mm 4.19mm 5.2mm +100 °C
N° de stock RS 168-9539
Référence fabricantAL5809-30QP1-7
MarqueDiodesZetex
0,177 €
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
0,177 €
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 156-5698
Référence fabricantLT3092ETS8#TRMPBF
2,297 €
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 168-9550
Référence fabricantBCR421UW6Q-7
MarqueDiodesZetex
0,11 €
Each (On a Reel of 3000)
Unité
Single - 1 40V - - Surface Mount SOT-26 6 3.1 x 1.7 x 1.3mm 3.1mm 1.7mm 1.3mm +150 °C
N° de stock RS 168-9536
Référence fabricantAL5809-120QP1-7
MarqueDiodesZetex
0,20 €
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 121-8832
Référence fabricantLM334M/NOPB
1,058 €
Each (In a Tube of 95)
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 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 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
Nouveau
N° de stock RS 197-7487
Référence fabricantREF200AU
7,72 €
Each
Unité
Single 100µA 3 40V 500MΩ 40V - SOIC 8 - - - - -
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 145-0208
Référence fabricantLT3092EST#PBF
2,415 €
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 761-8627
Référence fabricantLT3092ITS8#TRMPBF
5,64 €
Each
Unité
Single - 1 40V - - Surface Mount SOT-23 8 2.9 x 1.75 x 0.9mm 2.9mm 1.75mm 0.9mm +125 °C
N° de stock RS 921-0477
Référence fabricantAP2502KTR-G1
MarqueDiodesZetex
0,334 €
Each (In a Pack of 30)
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 779-9615
Référence fabricantLT3092EST#PBF
3,695 €
Each (In a Pack of 2)
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