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...

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Nexperia 370 μA Constant Current Diode 5-Pin SC-88 75 V
RS Stock No.: 170-4833Brand: NexperiaManufacturers Part No.: PSSI2021SAY,115

AED 2,527.88

AED 0.842 Each (On a Reel of 3000) (ex VAT)

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Nexperia
Constant Current Diode
-
Constant Current Source
Surface
SC-88
5
-
75V
-
2.2mm
1.35 mm
1mm
150°C
No
PSSI2021SAY
-65°C
No
370μA

AED 20.22

AED 1.011 Each (In a Pack of 20) (ex VAT)

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DiodesZetex
Constant Current Diode
-
Linear LED CONSTANT CURRENT REGULATOR
Surface
SOT-26
6
-
40V
-
3.1mm
1.7 mm
1.3mm
150°C
No
BCR421
-55°C
AEC-Q100
1.2mA

AED 19.66

AED 3.932 Each (In a Pack of 5) (ex VAT)

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Texas Instruments
Constant Current Diode
±3 %
Current Regulator
Through Hole
TO-92
3
1V
40V
Current
5.2mm
4.19 mm
5.2mm
70°C
No
LM334
0°C
No
10mA

AED 71.62

AED 14.324 Each (In a Pack of 5) (ex VAT)

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Texas Instruments
Programmable Current Source
±3 %
Current Regulator
Through Hole
TO-92
3
1V
40V
Current
5.2mm
4.19 mm
5.2mm
100°C
No
LM234
-25°C
No
10mA
Power Integrations LNK302GN Buck Converter 8-Pin SMD
RS Stock No.: 146-5623Brand: Power IntegrationsManufacturers Part No.: LNK302GN

AED 123.58

AED 2.472 Each (In a Tube of 50) (ex VAT)

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Power Integrations
Buck Converter
-
-
-
SMD
8
-
-
-
9.83mm
3.68 mm
3.68mm
150°C
-
-
-40°C
-
-

AED 29.21

AED 1.461 Each (In a Pack of 20) (ex VAT)

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DiodesZetex
Constant Current Diode
±5 %
2-Terminal Constant Current LED Driver
Surface
PDI123
2
2.5V
60V
Low Side, High Side
3mm
1.93 mm
1mm
150°C
No
AL5809
-40°C
No
150mA
Texas Instruments Constant Current Diode 8-Pin SOIC 40 V
RS Stock No.: 197-7486Brand: Texas InstrumentsManufacturers Part No.: REF200AU

AED 2,885.99

AED 38.48 Each (In a Tube of 75) (ex VAT)

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Texas Instruments
Constant Current Diode
±0.5 %
-
Surface
SOIC
8
2.5V
40V
Current
5mm
3.98 mm
1.75mm
85°C
No
REF200
-25°C
No
-

AED 44.94

AED 2.247 Each (In a Pack of 20) (ex VAT)

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DiodesZetex
Constant Current Diode
±5 %
Constant Current Regulator (CCR)
Surface
PDI123
2
2.5V
60V
High Side, Low Side
3mm
1.93 mm
1mm
150°C
TS16949, AEC-Q100, Halogen and Antimony Free, RoHS
AL5809Q
-40°C
AEC-Q100 Grade 3
150mA

AED 50.84

AED 50.84 Each (ex VAT)

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Texas Instruments
Constant Current Diode
±0.5 %
-
Surface
SOIC
8
2.5V
40V
Current
5mm
3.98 mm
1.75mm
85°C
No
REF200
-25°C
No
-

AED 23.59

AED 4.719 Each (In a Pack of 5) (ex VAT)

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Texas Instruments
Programmable Current Source
±3 %
Current Regulator
Through Hole
TO-92
3
1V
30V
Current
5.2mm
4.19 mm
5.2mm
100°C
No
LM234
-25°C
No
10mA

AED 26.40

AED 5.28 Each (In a Pack of 5) (ex VAT)

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Texas Instruments
Constant Current Diode
±3 %
Current Regulator
Surface
SOIC
8
1V
40V
Current
4.9mm
3.9 mm
1.45mm
70°C
No
LM334
0°C
No
10mA
DiodesZetex 1.2 mA Constant Current Diode 6-Pin SOT-26 40 V
RS Stock No.: 168-9550Brand: DiodesZetexManufacturers Part No.: BCR421UW6Q-7

AED 2,359.35

AED 0.786 Each (On a Reel of 3000) (ex VAT)

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DiodesZetex
Constant Current Diode
-
Linear LED CONSTANT CURRENT REGULATOR
Surface
SOT-26
6
-
40V
-
3.1mm
1.7 mm
1.3mm
150°C
No
BCR421
-55°C
AEC-Q100
1.2mA
DiodesZetex 150 mA Constant Current Diode 2-Pin PDI123 60 V
RS Stock No.: 168-9536Brand: DiodesZetexManufacturers Part No.: AL5809-120QP1-7

AED 4,887.22

AED 1.63 Each (On a Reel of 3000) (ex VAT)

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DiodesZetex
Constant Current Diode
±5 %
2-Terminal Constant Current LED Driver
Surface
PDI123
2
2.5V
60V
Low Side, High Side
3mm
1.93 mm
1mm
150°C
No
AL5809
-40°C
No
150mA
DiodesZetex 150 mA Constant Current Diode 2-Pin PDI123 60 V
RS Stock No.: 168-9539Brand: DiodesZetexManufacturers Part No.: AL5809-30QP1-7

AED 4,381.65

AED 1.461 Each (On a Reel of 3000) (ex VAT)

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DiodesZetex
Constant Current Diode
±5 %
2-Terminal Constant Current LED Driver
Surface
PDI123
2
2.5V
60V
Low Side, High Side
3mm
1.93 mm
1mm
150°C
No
AL5809
-40°C
No
150mA
DiodesZetex 150 mA Constant Current Diode 2-Pin PDI123 60 V
RS Stock No.: 168-9540Brand: DiodesZetexManufacturers Part No.: AL5809-50QP1-7

AED 4,381.65

AED 1.461 Each (On a Reel of 3000) (ex VAT)

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DiodesZetex
Constant Current Diode
±5 %
Constant Current Regulator (CCR)
Surface
PDI123
2
2.5V
60V
High Side, Low Side
3mm
1.93 mm
1mm
150°C
TS16949, AEC-Q100, Halogen and Antimony Free, RoHS
AL5809Q
-40°C
AEC-Q100 Grade 3
150mA
DiodesZetex 20 mA Constant Current Diode 6-Pin SOT-23 6 V
RS Stock No.: 165-8354Brand: DiodesZetexManufacturers Part No.: AP2502KTR-G1

AED 2,190.82

AED 0.731 Each (On a Reel of 3000) (ex VAT)

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DiodesZetex
Constant Current Diode
-
4-Channel Linear Constant Current Sink
Surface
SOT-23
6
2V
6V
-
3.02mm
1.7 mm
1.3mm
85°C
No
AP2502
-40°C
No
20mA

AED 32.58

AED 1.63 Each (In a Pack of 20) (ex VAT)

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DiodesZetex
Constant Current Diode
±5 %
2-Terminal Constant Current LED Driver
Surface
PDI123
2
2.5V
60V
Low Side, High Side
3mm
1.93 mm
1mm
150°C
No
AL5809
-40°C
No
150mA

AED 35.39

AED 1.18 Each (In a Pack of 30) (ex VAT)

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DiodesZetex
Constant Current Diode
-
4-Channel Linear Constant Current Sink
Surface
SOT-23
6
2V
6V
-
3.02mm
1.7 mm
1.3mm
85°C
No
AP2502
-40°C
No
20mA
Nexperia PSSI2021SAY,115 370 μA Constant Current Diode 5-Pin SC-88 75 V
Also available in industry standard packaging
RS Stock No.: 170-5384Brand: NexperiaManufacturers Part No.: PSSI2021SAY,115

AED 21.06

AED 0.842 Each (In a Pack of 25) (ex VAT)

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Nexperia
Constant Current Diode
-
Constant Current Source
Surface
SC-88
5
-
75V
-
2.2mm
1.35 mm
1mm
150°C
No
PSSI2021SAY
-65°C
No
370μA
Texas Instruments 10 mA Constant Current Diode 3-Pin TO-92 40 V
RS Stock No.: 121-8833Brand: Texas InstrumentsManufacturers Part No.: LM334Z/NOPB

AED 4,550.18

AED 2.528 Each (In a Box of 1800) (ex VAT)

Add to basket
Texas Instruments
Constant Current Diode
±3 %
Current Regulator
Through Hole
TO-92
3
1V
40V
Current
5.2mm
4.19 mm
5.2mm
70°C
No
LM334
0°C
No
10mA