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

AED 2,696.40

AED 0.899 Each (On a Reel of 3000) (ex VAT)

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

AED 21.35

AED 1.067 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
-
150°C
3.1mm
1.3mm
BCR421
No
1.7 mm
-55°C
AEC-Q100
1.2mA

AED 21.06

AED 4.213 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
70°C
5.2mm
5.2mm
LM334
No
4.19 mm
0°C
No
10mA

AED 76.40

AED 15.28 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
100°C
5.2mm
5.2mm
LM234
No
4.19 mm
-25°C
No
10mA
Power Integrations LNK302GN Buck Converter 8-Pin SMD
RS Stock No.146-5623BrandPower IntegrationsManufacturers Part No.LNK302GN

AED 132.01

AED 2.64 Each (In a Tube of 50) (ex VAT)

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

AED 31.46

AED 1.573 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
150°C
3mm
1mm
AL5809
No
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

AED 3,016.60

AED 40.221 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
85°C
5mm
1.75mm
REF200
No
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

AED 48.31

AED 2.415 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
150°C
3mm
1mm
AL5809Q
TS16949, AEC-Q100, Halogen and Antimony Free, RoHS
1.93 mm
-40°C
AEC-Q100 Grade 3
150mA

AED 54.21

AED 54.21 Each (ex VAT)

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

AED 25.00

AED 5.00 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
100°C
5.2mm
5.2mm
LM234
No
4.19 mm
-25°C
No
10mA

AED 28.09

AED 5.618 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
70°C
4.9mm
1.45mm
LM334
No
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

AED 2,527.88

AED 0.842 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
-
150°C
3.1mm
1.3mm
BCR421
No
1.7 mm
-55°C
AEC-Q100
1.2mA
DiodesZetex 150 mA Constant Current Diode 2-Pin PDI123 60 V
RS Stock No.168-9539BrandDiodesZetexManufacturers Part No.AL5809-30QP1-7

AED 4,550.18

AED 1.516 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
150°C
3mm
1mm
AL5809
No
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

AED 4,550.18

AED 1.516 Each (On a Reel of 3000) (ex VAT)

Add to basket
DiodesZetex
Constant Current Diode
±5 %
Constant Current Regulator (CCR)
Surface
PDI123
2
2.5V
60V
High Side, Low Side
150°C
3mm
1mm
AL5809Q
TS16949, AEC-Q100, Halogen and Antimony Free, RoHS
1.93 mm
-40°C
AEC-Q100 Grade 3
150mA
DiodesZetex 150 mA Constant Current Diode 2-Pin PDI123 60 V
RS Stock No.168-9536BrandDiodesZetexManufacturers Part No.AL5809-120QP1-7

AED 5,055.75

AED 1.685 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
150°C
3mm
1mm
AL5809
No
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

AED 2,359.35

AED 0.786 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
-
85°C
3.02mm
1.3mm
AP2502
No
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

AED 33.70

AED 1.685 Each (In a Pack of 20) (ex VAT)

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

AED 37.08

AED 1.236 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
-
85°C
3.02mm
1.3mm
AP2502
No
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

AED 22.47

AED 0.899 Each (In a Pack of 25) (ex VAT)

Add to basket
Nexperia
Constant Current Diode
-
Constant Current Source
Surface
SC-88
5
-
75V
-
150°C
2.2mm
1mm
PSSI2021SAY
No
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

AED 4,752.40

AED 2.64 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
70°C
5.2mm
5.2mm
LM334
No
4.19 mm
0°C
No
10mA