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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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Texas Instruments REF200AU Constant Current Diode, 100μA, 40V max, 8-Pin SOIC
RS Stock No. 197-7486
Brand Texas Instruments
Manufacturers Part No. REF200AU

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Texas Instruments
100µA
3
40V
40V
-
SOIC
8
-
-
-
-
-
-
Texas Instruments LM334MX/NOPB Constant Current Diode, 1mA, 0.8V max, 8-Pin SOIC
RS Stock No. 208-8575
Brand Texas Instruments
Manufacturers Part No. LM334MX/NOPB

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Texas Instruments
1mA
1
40V
0.8V
-
SOIC
8
-
-
-
-
-
-
Texas Instruments REF200AU Constant Current Diode, 100μA, 40V max, 8-Pin SOIC
RS Stock No. 197-7487
Brand Texas Instruments
Manufacturers Part No. REF200AU

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Texas Instruments
100µA
3
40V
40V
-
SOIC
8
-
-
-
-
-
-
Texas Instruments LM334MX/NOPB Constant Current Diode, 1mA, 0.8V max, 8-Pin SOIC
RS Stock No. 208-8576
Brand Texas Instruments
Manufacturers Part No. LM334MX/NOPB

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Texas Instruments
1mA
1
40V
0.8V
-
SOIC
8
-
-
-
-
-
-
Texas Instruments LM334Z/NOPB Constant Current Diode, 10mA, 3-Pin TO-92
Also available in industry standard packaging
RS Stock No. 535-9098
Brand Texas Instruments
Manufacturers Part No. LM334Z/NOPB

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Texas Instruments
10mA
1
40V
-
Through Hole
TO-92
3
5.2 x 4.19 x 5.2mm
5.2mm
4.19mm
5.2mm
+70 °C
0 °C

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Texas Instruments
10mA
1
40V
-
Through Hole
TO-92
3
5.2 x 4.19 x 5.2mm
5.2mm
4.19mm
5.2mm
+100 °C
-25 °C

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Analog Devices
200mA
1
-
-
Surface Mount
SOT-223
3 + Tab
6.71 x 3.71 x 1.8mm
6.71mm
3.71mm
1.8mm
+125 °C
-40 °C
Texas Instruments LM334M/NOPB Constant Current Diode, 10mA, 8-Pin SOIC
Also available in industry standard packaging
RS Stock No. 535-9082
Brand Texas Instruments
Manufacturers Part No. LM334M/NOPB

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Texas Instruments
10mA
1
40V
-
Surface Mount
SOIC
8
4.9 x 3.9 x 1.45mm
4.9mm
3.9mm
1.45mm
+70 °C
0 °C

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DiodesZetex
30mA
1
60V
-
Surface Mount
PDI123
2
3 x 1.93 x 1mm
3mm
1.93mm
1mm
+150 °C
-40 °C

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DiodesZetex
50mA
1
60V
-
Surface Mount
PDI123
2
3 x 1.93 x 1mm
3mm
1.93mm
1mm
+150 °C
-40 °C

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Nexperia
50mA
2
75V
73V
Surface Mount
SC-88A
5
2.2 x 1.35 x 1mm
2.2mm
1.35mm
1mm
+150 °C
-65 °C
DiodesZetex AP2502KTR-G1 Constant Current Diode, 6-Pin SOT-23
Also available in industry standard packaging
RS Stock No. 921-0477
Brand DiodesZetex
Manufacturers Part No. AP2502KTR-G1

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DiodesZetex
-
1
6V
-
Surface Mount
SOT-23
6
3.02 x 1.7 x 1.3mm
3.02mm
1.7mm
1.3mm
+85 °C
-40 °C

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Analog Devices
200mA
1
40V
-
Surface Mount
SOT-223
3 + Tab
6.71 x 3.71 x 1.6984mm
6.71mm
3.71mm
1.698mm
+125 °C
-40 °C

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Analog Devices
200mA
1
40V
-
Surface Mount
TSOT-23
8
2.9 x 1.75 x 0.9mm
2.9mm
1.75mm
0.9mm
+125 °C
-40 °C
Nexperia PSSI2021SAY,115 Constant Current Diode, 50mA, 73V max, 5-Pin SC-88A
RS Stock No. 170-4833
Brand Nexperia
Manufacturers Part No. PSSI2021SAY,115

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Nexperia
50mA
2
75V
73V
Surface Mount
SC-88A
5
2.2 x 1.35 x 1mm
2.2mm
1.35mm
1mm
+150 °C
-65 °C
Analog Devices LT3092ITS8#TRMPBF Programmable Current Source, 8-Pin SOT-23
Also available in industry standard packaging
RS Stock No. 761-8627
Brand Analog Devices
Manufacturers Part No. LT3092ITS8#TRMPBF

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Analog Devices
-
1
40V
-
Surface Mount
SOT-23
8
2.9 x 1.75 x 0.9mm
2.9mm
1.75mm
0.9mm
+125 °C
-40 °C

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Texas Instruments
10mA
1
30V
-
Through Hole
TO-92
3
5.2 x 4.19 x 5.2mm
5.2mm
4.19mm
5.2mm
+100 °C
-25 °C
Analog Devices LT3092ETS8#TRMPBF Programmable Current Source, 200mA, 8-Pin TSOT-23
RS Stock No. 156-5698
Brand Analog Devices
Manufacturers Part No. LT3092ETS8#TRMPBF

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Analog Devices
200mA
1
40V
-
Surface Mount
TSOT-23
8
2.9 x 1.75 x 0.9mm
2.9mm
1.75mm
0.9mm
+125 °C
-40 °C

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Analog Devices
200mA
1
40V
-
Surface Mount
DFN
8
3 x 3 x 0.75mm
3mm
3mm
0.75mm
+125 °C
-40 °C
Analog Devices LT3092ITS8TRMPBF Programmable Current Source, 200mA, 8-Pin SOT-23
RS Stock No. 919-9238
Brand Analog Devices
Manufacturers Part No. LT3092ITS8TRMPBF

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Analog Devices
200mA
1
40V
-
Surface Mount
SOT-23
8
2.9 x 1.75 x 0.9mm
2.9mm
1.75mm
0.9mm
+125 °C
-40 °C