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.170-4833BrandNexperiaManufacturers Part No.PSSI2021SAY,115

€ 658.44

€ 0.219 Each (On a Reel of 3000) (Exc. Vat)

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

€ 6.37

€ 0.319 Each (In a Pack of 20) (Exc. Vat)

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

€ 5.06

€ 1.012 Each (In a Pack of 5) (Exc. Vat)

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

€ 18.29

€ 3.658 Each (In a Pack of 5) (Exc. Vat)

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Texas Instruments
Programmable Current Source
Current Regulator
±3 %
Through Hole
TO-92
3
1V
40V
Current
5.2mm
LM234
100°C
No
5.2mm
4.19 mm
-25°C
No
10mA
DiodesZetex AL5809-30QP1-7 150 mA Constant Current Diode 2-Pin PDI123 60 V
Also available in industry standard packaging
RS Stock No.133-3334BrandDiodesZetexManufacturers Part No.AL5809-30QP1-7

€ 8.13

€ 0.407 Each (In a Pack of 20) (Exc. Vat)

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

€ 837.00

€ 11.16 Each (In a Tube of 75) (Exc. Vat)

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Texas Instruments
Constant Current Diode
-
±0.5 %
Surface
SOIC
8
2.5V
40V
Current
5mm
REF200
85°C
No
1.75mm
3.98 mm
-25°C
No
-
DiodesZetex AL5809-50QP1-7 150 mA Constant Current Diode 2-Pin PDI123 60 V
Also available in industry standard packaging
RS Stock No.133-3335BrandDiodesZetexManufacturers Part No.AL5809-50QP1-7

€ 11.61

€ 0.58 Each (In a Pack of 20) (Exc. Vat)

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

€ 13.02

€ 13.02 Each (Exc. Vat)

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

€ 7.44

€ 1.488 Each (In a Pack of 5) (Exc. Vat)

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

€ 6.82

€ 1.364 Each (In a Pack of 5) (Exc. Vat)

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

€ 613.80

€ 0.205 Each (On a Reel of 3000) (Exc. Vat)

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

€ 1,253.64

€ 0.418 Each (On a Reel of 3000) (Exc. Vat)

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

€ 1,104.84

€ 0.368 Each (On a Reel of 3000) (Exc. Vat)

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DiodesZetex
Constant Current Diode
Constant Current Regulator (CCR)
±5 %
Surface
PDI123
2
2.5V
60V
High Side, Low Side
3mm
AL5809Q
150°C
TS16949, AEC-Q100, Halogen and Antimony Free, RoHS
1mm
1.93 mm
-40°C
AEC-Q100 Grade 3
150mA
DiodesZetex 150 mA Constant Current Diode 2-Pin PDI123 60 V
RS Stock No.168-9539BrandDiodesZetexManufacturers Part No.AL5809-30QP1-7

€ 1,078.80

€ 0.36 Each (On a Reel of 3000) (Exc. Vat)

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DiodesZetex
Constant Current Diode
2-Terminal Constant Current LED Driver
±5 %
Surface
PDI123
2
2.5V
60V
Low Side, High Side
3mm
AL5809
150°C
No
1mm
1.93 mm
-40°C
No
150mA
DiodesZetex 20 mA Constant Current Diode 6-Pin SOT-23 6 V
RS Stock No.165-8354BrandDiodesZetexManufacturers Part No.AP2502KTR-G1

€ 624.96

€ 0.208 Each (On a Reel of 3000) (Exc. Vat)

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DiodesZetex
Constant Current Diode
4-Channel Linear Constant Current Sink
-
Surface
SOT-23
6
2V
6V
-
3.02mm
AP2502
85°C
No
1.3mm
1.7 mm
-40°C
No
20mA
DiodesZetex AL5809-120QP1-7 150 mA Constant Current Diode 2-Pin PDI123 60 V
Also available in industry standard packaging
RS Stock No.133-3331BrandDiodesZetexManufacturers Part No.AL5809-120QP1-7

€ 9.25

€ 0.463 Each (In a Pack of 20) (Exc. Vat)

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DiodesZetex
Constant Current Diode
2-Terminal Constant Current LED Driver
±5 %
Surface
PDI123
2
2.5V
60V
Low Side, High Side
3mm
AL5809
150°C
No
1mm
1.93 mm
-40°C
No
150mA
DiodesZetex AP2502KTR-G1 20 mA Constant Current Diode 6-Pin SOT-23 6 V
Also available in industry standard packaging
RS Stock No.921-0477BrandDiodesZetexManufacturers Part No.AP2502KTR-G1

€ 9.00

€ 0.30 Each (In a Pack of 30) (Exc. Vat)

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DiodesZetex
Constant Current Diode
4-Channel Linear Constant Current Sink
-
Surface
SOT-23
6
2V
6V
-
3.02mm
AP2502
85°C
No
1.3mm
1.7 mm
-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.170-5384BrandNexperiaManufacturers Part No.PSSI2021SAY,115

€ 6.08

€ 0.243 Each (In a Pack of 25) (Exc. Vat)

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

€ 1,336.97

€ 0.743 Each (In a Box of 1800) (Exc. Vat)

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Texas Instruments
Constant Current Diode
Current Regulator
±3 %
Through Hole
TO-92
3
1V
40V
Current
5.2mm
LM334
70°C
No
5.2mm
4.19 mm
0°C
No
10mA
Texas Instruments 10 mA Constant Current Diode 8-Pin SOIC 40 V
RS Stock No.121-8832BrandTexas InstrumentsManufacturers Part No.LM334M/NOPB

€ 86.47

€ 0.91 Each (In a Tube of 95) (Exc. Vat)

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Texas Instruments
Constant Current Diode
Current Regulator
±3 %
Surface
SOIC
8
1V
40V
Current
4.9mm
LM334
70°C
No
1.45mm
3.9 mm
0°C
No
10mA