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

€ 666.40

€ 0.222 Each (On a Reel of 3000) (Exc. Vat)

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

€ 6.45

€ 0.323 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
-
1.7 mm
No
3.1mm
BCR421
1.3mm
150°C
-55°C
1.2mA
AEC-Q100

€ 5.12

€ 1.024 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
4.19 mm
No
5.2mm
LM334
5.2mm
70°C
0°C
10mA
No

€ 18.51

€ 3.702 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
4.19 mm
No
5.2mm
LM234
5.2mm
100°C
-25°C
10mA
No
Power Integrations LNK302GN Buck Converter 8-Pin SMD
RS Stock No.146-5623BrandPower IntegrationsManufacturers Part No.LNK302GN

€ 28.43

€ 0.569 Each (In a Tube of 50) (Exc. Vat)

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

€ 8.23

€ 0.412 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
1.93 mm
No
3mm
AL5809
1mm
150°C
-40°C
150mA
No
Texas Instruments Constant Current Diode 8-Pin SOIC 40 V
RS Stock No.197-7486BrandTexas InstrumentsManufacturers Part No.REF200AU

€ 847.12

€ 11.295 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
3.98 mm
No
5mm
REF200
1.75mm
85°C
-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

€ 11.75

€ 0.587 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
1.93 mm
TS16949, AEC-Q100, Halogen and Antimony Free, RoHS
3mm
AL5809Q
1mm
150°C
-40°C
150mA
AEC-Q100 Grade 3

€ 13.18

€ 13.18 Each (Exc. Vat)

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

€ 7.53

€ 1.506 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
4.19 mm
No
5.2mm
LM234
5.2mm
100°C
-25°C
10mA
No

€ 6.90

€ 1.38 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
3.9 mm
No
4.9mm
LM334
1.45mm
70°C
0°C
10mA
No
DiodesZetex 1.2 mA Constant Current Diode 6-Pin SOT-26 40 V
RS Stock No.168-9550BrandDiodesZetexManufacturers Part No.BCR421UW6Q-7

€ 621.22

€ 0.207 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
-
1.7 mm
No
3.1mm
BCR421
1.3mm
150°C
-55°C
1.2mA
AEC-Q100
DiodesZetex 150 mA Constant Current Diode 2-Pin PDI123 60 V
RS Stock No.168-9536BrandDiodesZetexManufacturers Part No.AL5809-120QP1-7

€ 1,268.80

€ 0.423 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
1.93 mm
No
3mm
AL5809
1mm
150°C
-40°C
150mA
No
DiodesZetex 150 mA Constant Current Diode 2-Pin PDI123 60 V
RS Stock No.168-9539BrandDiodesZetexManufacturers Part No.AL5809-30QP1-7

€ 1,091.85

€ 0.364 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
1.93 mm
No
3mm
AL5809
1mm
150°C
-40°C
150mA
No
DiodesZetex 150 mA Constant Current Diode 2-Pin PDI123 60 V
RS Stock No.168-9540BrandDiodesZetexManufacturers Part No.AL5809-50QP1-7

€ 1,118.20

€ 0.373 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
1.93 mm
TS16949, AEC-Q100, Halogen and Antimony Free, RoHS
3mm
AL5809Q
1mm
150°C
-40°C
150mA
AEC-Q100 Grade 3
DiodesZetex 20 mA Constant Current Diode 6-Pin SOT-23 6 V
RS Stock No.165-8354BrandDiodesZetexManufacturers Part No.AP2502KTR-G1

€ 632.52

€ 0.211 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
-
1.7 mm
No
3.02mm
AP2502
1.3mm
85°C
-40°C
20mA
No
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

€ 7.53

€ 0.376 Each (In a Pack of 20) (Exc. Vat)

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

€ 9.11

€ 0.304 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
-
1.7 mm
No
3.02mm
AP2502
1.3mm
85°C
-40°C
20mA
No
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

€ 6.15

€ 0.246 Each (In a Pack of 25) (Exc. Vat)

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

€ 1,353.14

€ 0.752 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
4.19 mm
No
5.2mm
LM334
5.2mm
70°C
0°C
10mA
No