component
CMFB503F3950HANT
Public Made by Adomby adom
FH Guangdong Fenghua Advanced Tech NTC Thermistors, 0805. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownCMFB503F3950HANT
FH Guangdong Fenghua Advanced Tech · NTC Thermistors · 0805
CMFB503F3950HANT from FH Guangdong Fenghua Advanced Tech, in a 0805. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | Terminal 1 | passive | One of the two non-polar end-termination electrodes (Ni plating + solder plating) of the 2.0×1.2 mm chip NTC thermistor, R25 = 50 kΩ ±1%, B(25/50) = 3950 K. |
| 2 | Terminal 2 | passive | The other non-polar end-termination electrode (Ni plating + solder plating) of the 2.0×1.2 mm chip NTC thermistor, R25 = 50 kΩ ±1%, B(25/50) = 3950 K. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | FH Guangdong Fenghua Advanced Tech |
| Package | 0805 |
| Category | Sensors |
| Pins | 2 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Rated resistance (R25) | R25 | 50 | kΩ | Decoded from MPN code 503 (50 kΩ); printed in the 0805 table as CMFB503□4050 HANT | 4 | ||
| Resistance tolerance at 25°C | R25 | -1 | 1 | % | Tolerance code F in MPN; printed as ±1 in the tolerance code table | 1 | |
| B value (B25/50) | B25/50 | 3950 | K | Decoded from MPN code 3950; the 0805 table lists 50 kΩ only at 4050 K | 4 | ||
| Resistance change after resistance to soldering heat | R25 | -5 | 5 | % | Preheat 120~150°C 60 s; solder 260±5°C, 10±1 s | 6 | |
| Resistance change after flexure strength test | R25 | -5 | 5 | % | Bend 1.0 mm for 0805/1206; speed 0.5 mm/s | 6 | |
| Resistance change after reliability tests | R25 | -5 | 5 | % | 6 | ||
| B value change after reliability tests | B25/50 | -2 | 2 | % | 6 |
CAD (KiCad official)
- Symbol:
CMFB503F3950HANT - Footprint:
Resistor_SMD:R_0805_2012Metric - 3D model: 0805 (KiCad packages3D, STEP)
- 3D model files:
cmfb503f3950hant-etched.step/cmfb503f3950hant-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cmfb503f3950hant.step/cmfb503f3950hant.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: FH Guangdong Fenghua Advanced Tech datasheet (8 pp, sha256
01b03dd4c210150b, retrieved 2026-10-18, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).