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

€ 665.88

€ 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
-
PSSI2021SAY
1.35 mm
150°C
No
1mm
2.2mm
-65°C
370μA
No

€ 6.45

€ 0.322 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
-
BCR421
1.7 mm
150°C
No
1.3mm
3.1mm
-55°C
1.2mA
AEC-Q100

€ 5.11

€ 1.023 Each (In a Pack of 5) (Exc. Vat)

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

€ 18.60

€ 3.72 Each (In a Pack of 5) (Exc. Vat)

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

€ 28.40

€ 0.568 Each (In a Tube of 50) (Exc. Vat)

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

€ 8.23

€ 0.412 Each (In a Pack of 20) (Exc. 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
AL5809
1.93 mm
150°C
No
1mm
3mm
-40°C
150mA
No
Texas Instruments Constant Current Diode 8-Pin SOIC 40 V
RS Stock No.: 197-7486Brand: Texas InstrumentsManufacturers Part No.: REF200AU

€ 846.30

€ 11.284 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
REF200
3.98 mm
85°C
No
1.75mm
5mm
-25°C
-
No

€ 11.73

€ 0.587 Each (In a Pack of 20) (Exc. Vat)

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

€ 13.14

€ 13.14 Each (Exc. Vat)

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

€ 7.44

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

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

€ 6.82

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

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

€ 621.24

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

€ 1,089.96

€ 0.363 Each (On a Reel of 3000) (Exc. 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
AL5809
1.93 mm
150°C
No
1mm
3mm
-40°C
150mA
No
DiodesZetex 150 mA Constant Current Diode 2-Pin PDI123 60 V
RS Stock No.: 168-9540Brand: DiodesZetexManufacturers Part No.: AL5809-50QP1-7

€ 1,119.72

€ 0.373 Each (On a Reel of 3000) (Exc. Vat)

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

€ 1,268.52

€ 0.423 Each (On a Reel of 3000) (Exc. 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
AL5809
1.93 mm
150°C
No
1mm
3mm
-40°C
150mA
No
DiodesZetex 20 mA Constant Current Diode 6-Pin SOT-23 6 V
RS Stock No.: 165-8354Brand: DiodesZetexManufacturers Part No.: AP2502KTR-G1

€ 632.40

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

€ 7.54

€ 0.377 Each (In a Pack of 20) (Exc. 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
AL5809
1.93 mm
150°C
No
1mm
3mm
-40°C
150mA
No

€ 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
-
AP2502
1.7 mm
85°C
No
1.3mm
3.02mm
-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.: 170-5384Brand: NexperiaManufacturers Part No.: PSSI2021SAY,115

€ 6.17

€ 0.247 Each (In a Pack of 25) (Exc. Vat)

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

€ 1,354.82

€ 0.753 Each (In a Box of 1800) (Exc. Vat)

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