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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Omschrijving Prijs 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-stocknr. 121-8833
FabrikantnummerLM334Z/NOPB
0,329 €
Each (In a Box of 1800)
Aantal stuks
Single - 1 40V - - Through Hole TO-92 3 5.2 x 4.19 x 5.2mm 5.2mm 4.19mm 5.2mm +70 °C
RS-stocknr. 535-9098
FabrikantnummerLM334Z/NOPB
0,752 €
Each (In a Pack of 5)
Aantal stuks
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-stocknr. 921-6813
FabrikantnummerLM234Z-6/NOPB
0,594 €
Each (In a Tube of 1800)
Aantal stuks
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-stocknr. 761-5476
FabrikantnummerLM234Z-6/NOPB
1,154 €
Each (In a Pack of 5)
Aantal stuks
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-stocknr. 170-5384
FabrikantnummerPSSI2021SAY,115
FabrikantNexperia
0,279 €
Each (In a Pack of 25)
Aantal stuks
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-stocknr. 133-3334
FabrikantnummerAL5809-30QP1-7
FabrikantDiodesZetex
0,371 €
Each (In a Pack of 20)
Aantal stuks
Single - 1 60V - - Surface Mount PDI123 2 3 x 1.93 x 1mm 3mm 1.93mm 1mm +150 °C
Nieuw
RS-stocknr. 208-8576
FabrikantnummerLM334MX/NOPB
0,627 €
Each (In a Pack of 25)
Aantal stuks
- 1mA 1 40V - 0.8V - SOIC 8 - - - - -
RS-stocknr. 761-8627
FabrikantnummerLT3092ITS8#TRMPBF
FabrikantAnalog Devices
4,03 €
Each
Aantal stuks
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-stocknr. 168-9536
FabrikantnummerAL5809-120QP1-7
FabrikantDiodesZetex
0,203 €
Each (On a Reel of 3000)
Aantal stuks
Single - 1 60V - - Surface Mount PDI123 2 3 x 1.93 x 1mm 3mm 1.93mm 1mm +150 °C
RS-stocknr. 133-3331
FabrikantnummerAL5809-120QP1-7
FabrikantDiodesZetex
0,408 €
Each (In a Pack of 20)
Aantal stuks
Single - 1 60V - - Surface Mount PDI123 2 3 x 1.93 x 1mm 3mm 1.93mm 1mm +150 °C
RS-stocknr. 168-9539
FabrikantnummerAL5809-30QP1-7
FabrikantDiodesZetex
0,18 €
Each (On a Reel of 3000)
Aantal stuks
Single - 1 60V - - Surface Mount PDI123 2 3 x 1.93 x 1mm 3mm 1.93mm 1mm +150 °C
RS-stocknr. 921-0477
FabrikantnummerAP2502KTR-G1
FabrikantDiodesZetex
0,322 €
Each (In a Pack of 30)
Aantal stuks
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-stocknr. 761-5472
FabrikantnummerLM234Z-3/NOPB
2,378 €
Each (In a Pack of 5)
Aantal stuks
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-stocknr. 168-9550
FabrikantnummerBCR421UW6Q-7
FabrikantDiodesZetex
0,11 €
Each (On a Reel of 3000)
Aantal stuks
Single - 1 40V - - Surface Mount SOT-26 6 3.1 x 1.7 x 1.3mm 3.1mm 1.7mm 1.3mm +150 °C
RS-stocknr. 822-5901
FabrikantnummerLT3092IDD#PBF
FabrikantAnalog Devices
3,62 €
Each (In a Pack of 2)
Aantal stuks
Single - 1 - - - Surface Mount DFN 8 3 x 3 x 0.75mm 3mm 3mm 0.75mm +125 °C
RS-stocknr. 168-9540
FabrikantnummerAL5809-50QP1-7
FabrikantDiodesZetex
0,18 €
Each (On a Reel of 3000)
Aantal stuks
Single - 1 60V - - Surface Mount PDI123 2 3 x 1.93 x 1mm 3mm 1.93mm 1mm +150 °C
RS-stocknr. 197-7486
FabrikantnummerREF200AU
6,623 €
Each (In a Tube of 75)
Aantal stuks
Single 100µA 3 40V 500MΩ 40V - SOIC 8 - - - - -
RS-stocknr. 133-3335
FabrikantnummerAL5809-50QP1-7
FabrikantDiodesZetex
0,371 €
Each (In a Pack of 20)
Aantal stuks
Single - 1 60V - - Surface Mount PDI123 2 3 x 1.93 x 1mm 3mm 1.93mm 1mm +150 °C
RS-stocknr. 121-8832
FabrikantnummerLM334M/NOPB
1,029 €
Each (In a Tube of 95)
Aantal stuks
Single - 1 40V - - Surface Mount SOIC 8 4.9 x 3.9 x 1.45mm 4.9mm 3.9mm 1.45mm +70 °C
RS-stocknr. 170-4833
FabrikantnummerPSSI2021SAY,115
FabrikantNexperia
0,114 €
Each (On a Reel of 3000)
Aantal stuks
Single 50mA 2 75V - 73V Surface Mount SC-88A 5 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm +150 °C