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

BD 298.320

BD 0.099 Each (On a Reel of 3000) (Exc. Vat)

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

BD 2.362

BD 0.118 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
-
150°C
BCR421
3.1mm
1.3mm
1.7 mm
No
-55°C
AEC-Q100
1.2mA

BD 2.331

BD 0.466 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
70°C
LM334
5.2mm
5.2mm
4.19 mm
No
0°C
No
10mA

BD 8.452

BD 1.691 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
100°C
LM234
5.2mm
5.2mm
4.19 mm
No
-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

BD 3.480

BD 0.174 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
150°C
AL5809
3mm
1mm
1.93 mm
No
-40°C
No
150mA
Texas Instruments Constant Current Diode 8-Pin SOIC 40 V
RS Stock No.197-7486BrandTexas InstrumentsManufacturers Part No.REF200AU

BD 333.745

BD 4.450 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
85°C
REF200
5mm
1.75mm
3.98 mm
No
-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

BD 5.345

BD 0.267 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
150°C
AL5809Q
3mm
1mm
1.93 mm
TS16949, AEC-Q100, Halogen and Antimony Free, RoHS
-40°C
AEC-Q100 Grade 3
150mA

BD 5.997

BD 5.997 Each (Exc. Vat)

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

BD 2.765

BD 0.553 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
100°C
LM234
5.2mm
5.2mm
4.19 mm
No
-25°C
No
10mA

BD 3.107

BD 0.621 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
70°C
LM334
4.9mm
1.45mm
3.9 mm
No
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

BD 279.675

BD 0.093 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
-
150°C
BCR421
3.1mm
1.3mm
1.7 mm
No
-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

BD 503.415

BD 0.168 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
150°C
AL5809
3mm
1mm
1.93 mm
No
-40°C
No
150mA
DiodesZetex 150 mA Constant Current Diode 2-Pin PDI123 60 V
RS Stock No.168-9536BrandDiodesZetexManufacturers Part No.AL5809-120QP1-7

BD 559.350

BD 0.187 Each (On a Reel of 3000) (Exc. 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
AL5809
3mm
1mm
1.93 mm
No
-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

BD 503.415

BD 0.168 Each (On a Reel of 3000) (Exc. 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
AL5809Q
3mm
1mm
1.93 mm
TS16949, AEC-Q100, Halogen and Antimony Free, RoHS
-40°C
AEC-Q100 Grade 3
150mA
DiodesZetex 20 mA Constant Current Diode 6-Pin SOT-23 6 V
RS Stock No.165-8354BrandDiodesZetexManufacturers Part No.AP2502KTR-G1

BD 261.030

BD 0.087 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
-
85°C
AP2502
3.02mm
1.3mm
1.7 mm
No
-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

BD 3.729

BD 0.187 Each (In a Pack of 20) (Exc. 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
AL5809
3mm
1mm
1.93 mm
No
-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

BD 4.102

BD 0.136 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
-
85°C
AP2502
3.02mm
1.3mm
1.7 mm
No
-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

BD 2.486

BD 0.099 Each (In a Pack of 25) (Exc. Vat)

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

BD 525.789

BD 0.293 Each (In a Box of 1800) (Exc. Vat)

Add to basket
Texas Instruments
Constant Current Diode
±3 %
Current Regulator
Through Hole
TO-92
3
1V
40V
Current
70°C
LM334
5.2mm
5.2mm
4.19 mm
No
0°C
No
10mA
Texas Instruments 10 mA Constant Current Diode 8-Pin SOIC 40 V
RS Stock No.208-8575BrandTexas InstrumentsManufacturers Part No.LM334MX/NOPB

BD 730.263

BD 0.293 Each (On a Reel of 2500) (Exc. Vat)

Add to basket
Texas Instruments
Constant Current Diode
±3 %
Current Regulator
Surface
SOIC
8
1V
40V
Current
70°C
LM334
5mm
1.75mm
3.98 mm
No
0°C
No
10mA