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
THB71.05
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
THB278.46
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. 253-768
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.E-102
Brand :SEMITEC
THB71.99
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. 464-5326
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.E-153
Brand :SEMITEC
THB72.196
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. 693-4013
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.S-153T
Brand :SEMITEC
THB71.257
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. 253-796
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.E-272
Brand :SEMITEC
THB71.99
Each: (In a Pack of 5)
Units
Single - 1 100V 0.15MΩ 2.7V Through Hole - 2 3.9 x 1.8 x 1.8mm 3.9mm 1.8mm 1.8mm +150 °C
RS Stock No. 156-5698
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LT3092ETS8#TRMPBF
THB105.366
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
RS Stock No. 170-5384
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PSSI2021SAY,115
Brand :Nexperia
THB10.59
Each: (In a Pack of 25)
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. 133-3331
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AL5809-120QP1-7
Brand :DiodesZetex
THB15.80
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. 253-724
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.E-101
Brand :SEMITEC
THB71.99
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. 121-8833
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM334Z/NOPB
THB23.333
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. 168-9539
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AL5809-30QP1-7
Brand :DiodesZetex
THB10.536
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. 253-831
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.E-822
Brand :SEMITEC
THB71.99
Each: (In a Pack of 5)
Units
Single - 1 30V 0.32MΩ 3.1V Through Hole - 2 3.9 x 1.8 x 1.8mm 3.9mm 1.8mm 1.8mm +150 °C
RS Stock No. 465-0003
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.E-103
Brand :SEMITEC
THB70.78
Each: (In a Pack of 5)
Units
Single - 1 30V 0.17MΩ 3.5V 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. 693-4031
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.S-103T
Brand :SEMITEC
THB71.05
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. 168-9536
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AL5809-120QP1-7
Brand :DiodesZetex
THB11.914
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
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LT3092IST#PBF
THB141.83
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. 253-825
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.E-562
Brand :SEMITEC
THB71.99
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. 155-7505
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LT3092IDD#PBF
THB113.736
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
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