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OT: Question about LM334 and 1N457


 

The LM334 datasheet specifies the use of a diode to cancel the temperature coefficient of the LM334, saying:

"The recommended diode for use in this circuit is the 1N457 because its tempco is centered at 11 times the tempco of the LM134, allowing R2 = 10 R1."

All well and good, but the 1N457 datasheet doesn't specify the TC, and anyway the 1N457 is getting rather hard to find.

Can anyone recommend a suitable substitute? Ideally in a surface mount package.

Thanks
David Partridge

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