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.


...
Read more Read less

Filters

Viewing 1 - 20 of 33 products
Results per page
Description Price 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 Stock No. 761-5476
Mfr. Part No.LM234Z-6/NOPB
kr 11,864
Each (In a Pack of 5)
Units
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 Stock No. 921-6813
Mfr. Part No.LM234Z-6/NOPB
kr 8,748
Each (In a Tube of 1800)
Units
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 Stock No. 761-8627
Mfr. Part No.LT3092ITS8#TRMPBF
kr 47,46
Each
Units
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 Stock No. 168-9540
Mfr. Part No.AL5809-50QP1-7
kr 1,792
Each (On a Reel of 3000)
Units
Single - 1 60V - - Surface Mount PDI123 2 3 x 1.93 x 1mm 3mm 1.93mm 1mm +150 °C
RS Stock No. 133-3335
Mfr. Part No.AL5809-50QP1-7
kr 3,968
Each (In a Pack of 20)
Units
Single - 1 60V - - Surface Mount PDI123 2 3 x 1.93 x 1mm 3mm 1.93mm 1mm +150 °C
RS Stock No. 761-5472
Mfr. Part No.LM234Z-3/NOPB
kr 23,608
Each (In a Pack of 5)
Units
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 Stock No. 535-9098
Mfr. Part No.LM334Z/NOPB
kr 7,796
Each (In a Pack of 5)
Units
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 Stock No. 121-8833
Mfr. Part No.LM334Z/NOPB
kr 3,621
Each (In a Box of 1800)
Units
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 Stock No. 165-8354
Mfr. Part No.AP2502KTR-G1
kr 1,172
Each (On a Reel of 3000)
Units
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 Stock No. 921-0477
Mfr. Part No.AP2502KTR-G1
kr 3,413
Each (In a Pack of 30)
Units
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 Stock No. 921-6819
Mfr. Part No.LM234Z-3/NOPB
kr 19,865
Each (On a Reel of 1800)
Units
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 Stock No. 168-9536
Mfr. Part No.AL5809-120QP1-7
kr 2,112
Each (On a Reel of 3000)
Units
Single - 1 60V - - Surface Mount PDI123 2 3 x 1.93 x 1mm 3mm 1.93mm 1mm +150 °C
RS Stock No. 168-9550
Mfr. Part No.BCR421UW6Q-7
kr 1,099
Each (On a Reel of 3000)
Units
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 Stock No. 133-3345
Mfr. Part No.BCR421UW6Q-7
kr 3,011
Each (In a Pack of 20)
Units
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 Stock No. 133-3334
Mfr. Part No.AL5809-30QP1-7
kr 4,018
Each (In a Pack of 20)
Units
Single - 1 60V - - Surface Mount PDI123 2 3 x 1.93 x 1mm 3mm 1.93mm 1mm +150 °C
RS Stock No. 920-0060
Mfr. Part No.LT3092IST#PBF
kr 27,293
Each (In a Tube of 78)
Units
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 Stock No. 133-3331
Mfr. Part No.AL5809-120QP1-7
kr 4,407
Each (In a Pack of 20)
Units
Single - 1 60V - - Surface Mount PDI123 2 3 x 1.93 x 1mm 3mm 1.93mm 1mm +150 °C
RS Stock No. 168-9539
Mfr. Part No.AL5809-30QP1-7
kr 1,868
Each (On a Reel of 3000)
Units
Single - 1 60V - - Surface Mount PDI123 2 3 x 1.93 x 1mm 3mm 1.93mm 1mm +150 °C
RS Stock No. 822-5869
Mfr. Part No.LT3092IST#PBF
kr 48,755
Each (In a Pack of 2)
Units
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 Stock No. 170-4833
Mfr. Part No.PSSI2021SAY,115
BrandNexperia
kr 1,129
Each (On a Reel of 3000)
Units
Single 50mA 2 75V - 73V Surface Mount SC-88A 5 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm +150 °C
Related Products
A range of general purpose Schottky Rectifiers from ...
Description:
A range of general purpose Schottky Rectifiers from Comchip. These diodes exhibit low forward voltage drop with a fast switching action. The reverse recovery times of Schottky diodes are extremely short and they are suitable for applications requiring fast switching ...
High efficiency. Ultra-small, low-profile surface-mount packages. Optimized for ...
Description:
High efficiency. Ultra-small, low-profile surface-mount packages. Optimized for Low forward voltage drop and high junction temperature. Low capacitance. Negligible power switching losses. Low leakage current.
High efficiency. Ultra-small, low-profile surface-mount packages. Optimized for ...
Description:
High efficiency. Ultra-small, low-profile surface-mount packages. Optimized for Low forward voltage drop and high junction temperature. Low capacitance. Negligible power switching losses. Low leakage current.
Medium power low VF Schottky rectifiers single ≥ ...
Description:
Medium power low VF Schottky rectifiers single ≥ 200 mA, Helping you extend battery life with essential solutions, Our AEC-Q101 qualified low voltage-drop MEGA (Maximum Efficiency General Application) Schottky diodes offer high performance and high efficiency. Space saving in small ...