MF52D NTC Thermistor: 10K B3435 configuration
Starlight Sensors supplies epoxy-coated MF52D NTC thermistors for OEM temperature sensing. The parameters below describe one configuration from an internal product specification. They are provided for selection; final part approval must use the project-specific R/T curve and drawing shared privately.
Electrical and mechanical parameters
| Parameter | Example configuration |
|---|---|
| Resistance at 25°C (R25) | 10KΩ ±1% |
| B value | B25/85 = 3435K ±1%; the R/T table also identifies B25/50 = 3380K |
| Operating temperature | −40°C to +105°C |
| Epoxy-coated head | Maximum diameter 3 mm; maximum length 7.5 mm |
| Lead | Black UL4478 28# wire; length 100 ± 5 mm |
| Insulation resistance requirement | At least 100 MΩ at 100 V DC for 1 minute |
| Thermal time constant | Approximately 12 seconds in still air |
| Maximum rated power | 50 mW |
Resistance–temperature reference
Nominal resistance values in the internal specification are 10.000KΩ at 25°C, 4.168KΩ at 50°C and 1.461KΩ at 85°C. These three points are a reference, not a substitute for the full R/T table. Match the curve and B-value reference temperatures to your controller. A 10K B3435 element is not automatically interchangeable with a 10K B3950 probe.
Qualification and customer confidentiality
The specification sets out test methods and acceptance criteria; it is not a completed test report or a third-party RoHS certificate. Request applicable qualification evidence for your project. We keep customer drawings, files and project-specific part numbers private.
Request an OEM MF52D quote
Send us the required R25, B-value temperature pair or full R/T table, tolerances, operating range, head size, lead length, termination, application and order quantity. We can review the configuration with you directly.
Request an MF52D thermistor quote or review our 10K NTC datasheet guide.










