I bought some 10K thermistors from ebay recently, and the wires on them are very thin and fragile.
I see that there are different ones like Thermistor MF52-103 and MF52A
Those two numbers are indicating different parts of the specification
The "103" indicates that it resistance is 10K ohms @ 25C
The "3950k" indicates the characteristic curve of resistance vs temperature. The thermistor is non-linear (12.5C is not 5K ohms and 50C is not 20K ohms for a thermistor with a specification of 10K ohms @ 25C)
The A after the MF52 may indicate wire size but it may be manufacturer dependant
Your best bet is to find the data sheet for the manufacturer of the device which should give you full data including mechanical drawings
This shows typical wire sizes for these devices from one manufacturer
MF52 "A" indicates a thin wire of 0.3mm diameter from the manufacturer.
The above data sheet indicates that of all the package variations for the MF52 they supply the largest lead wire is 0.5mm
Perhaps search for MF52F which may bring up this configuration
Possibly better to search on CPC for "thermistor 10K" which will bring up
Other thermistors on CPC that may be suitable
Also check Rapid Electronics
Those with the thermistor encapsulated in a metal can are supplied with thicker wires.
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