| Electronics > Projects, Designs, and Technical Stuff |
| CRD alternative |
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| ArturN:
Hello, Recently i designed some device in which i needed to limit current. I used CRD (Current Regulative Diode). For example this: https://pl.mouser.com/ProductDetail/Semitec/S-202T?qs=sGAEpiMZZMtjJbtednZihoE8nwVXbu0d My question is that what is the cheapest alternative to this device? I found only current limiter based on JFET's. Any ideas? :) |
| David Hess:
I assume you mean exclusively for two terminal devices. LM317s can be configured to provide a constant current. The LM334 is an integrated current regulator. Depletion mode MOSFETs can be used in place of JFETs. The LM10/LT1635 operational amplifier and reference is also useful as a basic building block to make current regulators. |
| Benta:
J507 |
| NiHaoMike:
Depending on the circuit requirements, you might be able to use a current source based around a bipolar transistor, two diodes, and two resistors. |
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