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. 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. 168-9550
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BCR421UW6Q-7
Brand :DiodesZetex
THB3.866
Each (On a Reel of 3000)
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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. 921-6819
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM234Z-3/NOPB
THB78.632
Each (On a Reel of 1800)
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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. 465-0003
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.E-103
Brand :SEMITEC
THB70.78
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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. 693-4025
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.S-562T
Brand :SEMITEC
THB71.05
Each: (In a Pack of 10)
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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. 693-4035
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.S-123T
Brand :SEMITEC
THB71.05
Each: (In a Pack of 10)
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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. 761-8627
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THB152.84
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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. 921-6813
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LM234Z-6/NOPB
THB20.672
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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. 133-3334
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AL5809-30QP1-7
Brand :DiodesZetex
THB14.37
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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. 170-4833
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PSSI2021SAY,115
Brand :Nexperia
THB3.774
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
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