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
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
THB71.05
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. 253-768
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. 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. 464-5326
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.E-153
Brand :SEMITEC
THB69.364
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. 822-5869
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LT3092IST#PBF
THB140.825
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. 133-3334
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AL5809-30QP1-7
Brand :DiodesZetex
THB14.37
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. 919-9238
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LT3092ITS8TRMPBF
THB110.468
Each (On a Reel of 500)
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. 693-4025
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.S-562T
Brand :SEMITEC
THB71.05
Each: (In a Pack of 10)
Units
Single 6.5mA 1 100V - 4.5V Surface Mount SMD 2 2.6 x 1.6 x 0.7mm 2.6mm 1.6mm 0.7mm +150 °C
RS Stock No. 535-9082
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM334M/NOPB
THB30.752
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
RS Stock No. 253-746
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.E-501
Brand :SEMITEC
THB71.99
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
ใหม่ / New
RS Stock No. 197-7486
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.REF200AU
THB245.865
Each (In a Tube of 75)
Units
Single 100µA 3 40V 500MΩ 40V - SOIC 8 - - - - -
RS Stock No. 535-9098
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM334Z/NOPB
THB25.478
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. 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. 822-5901
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LT3092IDD#PBF
THB136.89
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
RS Stock No. 165-8354
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AP2502KTR-G1
Brand :DiodesZetex
THB4.26
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. 465-0003
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.E-103
Brand :SEMITEC
THB69.364
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. 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. 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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