C5-60T precision wire-wound resistor

[shodan@micron]

void

[doktor pyta]

Why semi-precision?
I'd say that hermetic sealing give them long term stability and make them suitable for metrology-grade applications.
P.S. I own 4 of these, all with T.C. of about 1ppm/C.

[Mickle T.]

No problem to buy a slightly better "thing"

[TimFox]

The digital readout on the meter is a good example of why we must be careful with majuscule and minuscule prefixes:
1 P = 1 kV / pA = 1 V / fA.

[branadic]

Looks like they used some insulator made out of PEEK. Could you take a detailed picture of how the leads are attached to the bobbin and how they attached the wire to the leads? Thanks.

-branadic-

[wan1788]

Looks like they used some insulator made out of PEEK. Could you take a detailed picture of how the leads are attached to the bobbin and how they attached the wire to the leads? Thanks.

-branadic-

In the third photo of the second post, there are folding petals.  They are clearly visible on the side cage. The resistor leads are made of magnetic material and have a high thermo efm.

[ramon]

I have count 160 turns. What is the diameter of the ceramic core? And the length between the first turn and the last one?

[ramon]

Thank you so much !!!

This reminds me some experiment I made some time ago. Will need to find time to continue ...

[ramon]

If the number of turns is correct, then I think that it should be 0.025mm wire.

    2*Pi*((7.487-0.025-0.025)/2) * 160 turns = 3.738 meters
    3.738 m * 2689 ohms/m = 10,052 ohms !

[ramon]

Interesting   

[Andreas]

Hello,

not bad result.
for me additionally interesting would be if there is any hysteresis (or permanent shift) when cycling back to cold values.

with best regards

Andreas