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 29 products
Results per page
Description Price Diode Configuration Maximum Regulator Current Number of Elements per Chip Maximum Peak Operating Voltage Maximum Limiting Voltage Mounting Type Package Type Pin Count Dimensions Length Width Height Maximum Operating Temperature Minimum Operating Temperature
RS stock no. 779-9615
Mfr. Part No.LT3092EST#PBF
R 64.40
Each (In a Pack of 2)
units
Single - 1 - - Surface Mount SOT-223 3 + Tab 6.71 x 3.71 x 1.8mm 6.71mm 3.71mm 1.8mm +125 °C -40 °C
RS stock no. 145-0208
Mfr. Part No.LT3092EST#PBF
R 53.04
Each (In a Tube of 78)
units
Single - 1 - - Surface Mount SOT-223 3 + Tab 6.71 x 3.71 x 1.8mm 6.71mm 3.71mm 1.8mm +125 °C -40 °C
RS stock no. 461-9434
Mfr. Part No.REF200AU
R 115.50
Each
units
Complex Array - 3 - - Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm +85 °C -40 °C
RS stock no. 121-8832
Mfr. Part No.LM334M/NOPB
R 13.589
Each (In a Tube of 95)
units
Single - 1 40V - Surface Mount SOIC 8 4.9 x 3.9 x 1.45mm 4.9mm 3.9mm 1.45mm +70 °C 0 °C
RS stock no. 535-9082
Mfr. Part No.LM334M/NOPB
R 16.018
Each (In a Pack of 5)
units
Single - 1 40V - Surface Mount SOIC 8 4.9 x 3.9 x 1.45mm 4.9mm 3.9mm 1.45mm +70 °C 0 °C
RS stock no. 121-8833
Mfr. Part No.LM334Z/NOPB
R 5.804
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 0 °C
RS stock no. 535-9098
Mfr. Part No.LM334Z/NOPB
R 17.208
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 0 °C
RS stock no. 156-5698
Mfr. Part No.LT3092ETS8#TRMPBF
R 37.238
Each (On a Reel of 500)
units
Single - 1 40V - Surface Mount TSOT-23 8 2.9 x 1.75 x 0.9mm 2.9mm 1.75mm 0.9mm +125 °C -40 °C
RS stock no. 858-0898
Mfr. Part No.LT3092ETS8#TRMPBF
R 66.464
Each (In a Pack of 5)
units
Single - 1 40V - Surface Mount TSOT-23 8 2.9 x 1.75 x 0.9mm 2.9mm 1.75mm 0.9mm +125 °C -40 °C
RS stock no. 822-5901
Mfr. Part No.LT3092IDD#PBF
R 63.925
Each (In a Pack of 2)
units
Single - 1 - - Surface Mount DFN 8 3 x 3 x 0.75mm 3mm 3mm 0.75mm +125 °C -40 °C
RS stock no. 155-7505
Mfr. Part No.LT3092IDD#PBF
R 39.972
Each (In a Tube of 121)
units
Single - 1 - - Surface Mount DFN 8 3 x 3 x 0.75mm 3mm 3mm 0.75mm +125 °C -40 °C
RS stock no. 826-9288
Mfr. Part No.BCR410WH6327XTSA1
BrandInfineon
R 1.832
Each (In a Pack of 100)
units
Single - 1 - - Surface Mount SOT-343 4 2 x 1.25 x 0.8mm 2mm 1.25mm 0.8mm +150 °C -
RS stock no. 165-5616
Mfr. Part No.BCR410WH6327XTSA1
BrandInfineon
R 1.308
Each (On a Reel of 3000)
units
Single - 1 - - Surface Mount SOT-343 4 2 x 1.25 x 0.8mm 2mm 1.25mm 0.8mm +150 °C -
RS stock no. 920-0060
Mfr. Part No.LT3092IST#PBF
R 51.371
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 -40 °C
RS stock no. 133-3331
Mfr. Part No.AL5809-120QP1-7
R 7.192
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 -40 °C
RS stock no. 168-9540
Mfr. Part No.AL5809-50QP1-7
R 2.938
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 -40 °C
RS stock no. 822-5869
Mfr. Part No.LT3092IST#PBF
R 77.475
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 -40 °C
RS stock no. 165-8354
Mfr. Part No.AP2502KTR-G1
R 1.943
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 -40 °C
RS stock no. 761-8627
Mfr. Part No.LT3092ITS8#TRMPBF
R 92.41
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 -40 °C
RS stock no. 133-3335
Mfr. Part No.AL5809-50QP1-7
R 2.877
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 -40 °C