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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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. 779-9615
FabrikantnummerLT3092EST#PBF
FabrikantAnalog Devices
€ 3,705
Each (In a Pack of 2)
Aantal stuks
Single - 1 - - - Surface Mount SOT-223 3 + Tab 6.71 x 3.71 x 1.8mm 6.71mm 3.71mm 1.8mm +125 °C
RS-stocknr. 921-6813
FabrikantnummerLM234Z-6/NOPB
€ 0,543
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. 921-6819
FabrikantnummerLM234Z-3/NOPB
€ 1,201
Each (On a Reel 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. 535-9082
FabrikantnummerLM334M/NOPB
€ 0,906
Each (In a Pack of 5)
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. 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. 822-5901
FabrikantnummerLT3092IDD#PBF
FabrikantAnalog Devices
€ 3,69
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. 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. 121-8833
FabrikantnummerLM334Z/NOPB
€ 0,35
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. 133-3345
FabrikantnummerBCR421UW6Q-7
FabrikantDiodesZetex
€ 0,275
Each (In a Pack of 20)
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. 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. 919-9238
FabrikantnummerLT3092ITS8TRMPBF
FabrikantAnalog Devices
€ 2,418
Each (On a Reel of 500)
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. 168-9540
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. 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. 761-8627
FabrikantnummerLT3092ITS8#TRMPBF
FabrikantAnalog Devices
€ 4,05
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. 822-5869
FabrikantnummerLT3092IST#PBF
FabrikantAnalog Devices
€ 4,12
Each (In a Pack of 2)
Aantal stuks
Single - 1 - - - Surface Mount SOT-223 3 + Tab 6.71 x 3.71 x 1.6984mm 6.71mm 3.71mm 1.698mm +125 °C
RS-stocknr. 133-3335
FabrikantnummerAL5809-50QP1-7
FabrikantDiodesZetex
€ 0,363
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. 165-8354
FabrikantnummerAP2502KTR-G1
FabrikantDiodesZetex
€ 0,112
Each (On a Reel of 3000)
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. 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
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