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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รายละเอียดสินค้า / Description ราคา / 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. 693-4022
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.S-183T
Brand :SEMITEC
THB16.96
Each: (In a Pack of 10)
Units
Single 20mA 1 40V - 4.6V Surface Mount SMD 2 2.6 x 1.6 x 0.7mm 2.6mm 1.6mm 0.7mm +150 °C
RS Stock No. 461-9434
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.REF200AU
THB260.96
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
RS Stock No. 693-4013
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.S-153T
Brand :SEMITEC
THB18.844
Each: (In a Pack of 10)
Units
Single 18mA 1 50V - 4.3V Surface Mount SMD 2 2.6 x 1.6 x 0.7mm 2.6mm 1.6mm 0.7mm +150 °C
RS Stock No. 464-5326
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.E-153
Brand :SEMITEC
THB33.462
Each: (In a Pack of 5)
Units
Single - 1 25V 0.03MΩ 4.3V Through Hole - 2 3.9 x 1.8 x 1.8mm 3.9mm 1.8mm 1.8mm +150 °C
RS Stock No. 253-768
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.E-102
Brand :SEMITEC
THB32.068
Each: (In a Pack of 5)
Units
Single - 1 100V 0.65MΩ 1.7V Through Hole - 2 3.9 x 1.8 x 1.8mm 3.9mm 1.8mm 1.8mm +150 °C
RS Stock No. 253-724
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.E-101
Brand :SEMITEC
THB28.644
Each: (In a Pack of 5)
Units
Single - 1 100V 6MΩ 0.5V Through Hole - 2 3.9 x 1.8 x 1.8mm 3.9mm 1.8mm 1.8mm +150 °C
RS Stock No. 824-6831
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM334SM/NOPB
THB84.616
Each: (In a Pack of 5)
Units
Single - 1 40V - - Surface Mount SOIC 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm +70 °C
RS Stock No. 253-780
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.E-202
Brand :SEMITEC
THB33.372
Each: (In a Pack of 5)
Units
Single - 1 100V 0.25MΩ 2.3V Through Hole - 2 3.9 x 1.8 x 1.8mm 3.9mm 1.8mm 1.8mm +150 °C
RS Stock No. 693-4035
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.S-123T
Brand :SEMITEC
THB18.295
Each: (In a Pack of 10)
Units
Single 14.4mA 1 50V - 3.8V Surface Mount SMD 2 2.6 x 1.6 x 0.7mm 2.6mm 1.6mm 0.7mm +150 °C
RS Stock No. 253-847
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.E-123
Brand :SEMITEC
THB39.656
Each: (In a Pack of 5)
Units
Single - 1 30V 0.08MΩ 3.8V Through Hole - 2 3.9 x 1.8 x 1.8mm 3.9mm 1.8mm 1.8mm +150 °C
RS Stock No. 145-0208
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LT3092EST#PBF
THB86.657
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
RS Stock No. 693-4031
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.S-103T
Brand :SEMITEC
THB15.885
Each: (In a Pack of 10)
Units
Single 12mA 1 50V - 3.5V Surface Mount SMD 2 2.6 x 1.6 x 0.7mm 2.6mm 1.6mm 0.7mm +150 °C
RS Stock No. 168-9550
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BCR421UW6Q-7
Brand :DiodesZetex
THB6.419
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. 170-4833
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PSSI2021SAY,115
Brand :Nexperia
THB5.764
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
RS Stock No. 822-5869
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LT3092IST#PBF
THB130.76
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. 253-746
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.E-501
Brand :SEMITEC
THB39.656
Each: (In a Pack of 5)
Units
Single - 1 100V 2MΩ 1.1V Through Hole - 2 3.9 x 1.8 x 1.8mm 3.9mm 1.8mm 1.8mm +150 °C
RS Stock No. 253-825
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.E-562
Brand :SEMITEC
THB33.372
Each: (In a Pack of 5)
Units
Single - 1 100V 0.04MΩ 4.5V Through Hole - 2 3.9 x 1.8 x 1.8mm 3.9mm 1.8mm 1.8mm +150 °C
RS Stock No. 253-730
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.E-301
Brand :SEMITEC
THB39.656
Each: (In a Pack of 5)
Units
Single - 1 100V 4MΩ 0.8V Through Hole - 2 3.9 x 1.8 x 1.8mm 3.9mm 1.8mm 1.8mm +150 °C
RS Stock No. 779-9615
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LT3092EST#PBF
THB130.41
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
RS Stock No. 761-8627
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LT3092ITS8#TRMPBF
THB144.90
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
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