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FPM253WJR003TM

Public Made by Adom

by adom

FOJAN Current Sense Resistors / Shunt Resistors, 2512. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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FPM253WJR003TM

FOJAN · Current Sense Resistors / Shunt Resistors · 2512

FPM253WJR003TM from FOJAN, in a 2512. 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 1 passive First terminal of the 3 mΩ (R003) alloy current-sense resistor, rated 3 W at 70 °C and 38 A rated current (86 A max overload) for the 2512 type.
2 2 passive Second terminal of the 3 mΩ (R003) alloy current-sense resistor, with Kelvin four-terminal sensing points on the underside of this electrode (A and V pads) at 5.6±0.25 mm by 2.0±0.25 mm spacing.

Key specifications

Parameter Value
Manufacturer FOJAN
Package 2512
Category Resistors
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
Resistance tolerance (J code = ±5%) -5 5 % Part-number tolerance code J; Kelvin four-terminal measurement 2
Temperature coefficient of resistance (T.C.R.) TCR -50 50 ppm/°C Measured at 25°C and +125°C, reference +25°C 4
Resistance range, Type 2512 R 1 100 mΩ Type 2512 (not 2512-L) 4
Rated power P70 3 W Power rating at P70 4
Rated current, Type 2512 38 A Type 2512 4
Max overload current, Type 2512 86 A Type 2512 4
Operating temperature range -55 170 °C Type 2512 4
Dielectric withstanding voltage 500 V DC Listed in features 2
High temperature exposure (storage) ΔR ΔR -1 1 % T=170°C, 1000 hrs; measured 24 h after test 5
Low temperature exposure (storage) ΔR ΔR -0.5 0.5 % T=-55°C, 1000 hrs; measured 24 h after test 5
Temperature cycling ΔR ΔR -0.5 0.5 % 1000 cycles (-55°C to 125°C); measured 24 h after test 5
Short time overload ΔR ΔR -0.5 0.5 % 5 x rated power for 5 s 5
Moisture resistance ΔR ΔR -1 1 % 24 hours per cycle, 10 cycles 5
Biased humidity ΔR ΔR -0.5 0.5 % 10% rated power at 85°C, RH 85%, 1000 hrs; measured 24 h after test 6
Load life ΔR ΔR -1 1 % 1000 h at +70°C, 1.5 h ON / 0.5 h OFF; measured 24 h after test 6
Resistance to soldering heat ΔR ΔR -0.5 0.5 % T=260±5°C solder, 10±1 s dwell 6
Mechanical shock ΔR ΔR -0.5 0.5 % 100 g's, 6 ms half sine pulse 6
Resistance to vibration ΔR ΔR -0.5 0.5 % 5 g's for 20 min, 10-2000 Hz, 12 cycles each axis 6
Board flex ΔR ΔR -0.5 0.5 % Min 2 mm deflection, 60 s 6
Thermal shock ΔR ΔR -1 1 % -55°C/+155°C, 1000 cycles 6
ESD ΔR ΔR -1 1 % Direct contact ±6 kV; air discharge +12/+16/+25 kV 6

CAD (KiCad official)

  • Symbol: FPM253WJR003TM
  • Footprint: Resistor_SMD:R_2512_6332Metric
  • 3D model: 2512 (KiCad packages3D, STEP)
  • 3D model files: fpm253wjr003tm-etched.step / fpm253wjr003tm-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); fpm253wjr003tm.step / fpm253wjr003tm.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: FOJAN datasheet (11 pp, sha256 20558dfb235c52df, retrieved 2026-10-19, 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, primary claude-sonnet-5-5 (text+vision), consensus claude-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).

Datasheet PDF