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FRM253WJR005TM

Public Made by Adom

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

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FRM253WJR005TM

FOJAN · Current Sense Resistors / Shunt Resistors · 2512

FRM253WJR005TM 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 (electrode) of the 5 mΩ alloy current-sense resistor, 2512 size, 63 A rated current and 141 A max overload for the 2512 type.
2 2 passive Second terminal (electrode) of the resistor, interchangeable with the first, with Kelvin four-terminal resistance measured at the bottom of the product and an operating temperature of -55°C to 170°C.

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 (part-number code J) -5 5 % Part-number tolerance code J = ±5% 2
Temperature coefficient of resistance TCR -50 50 ppm/°C Measuring points 25°C and +125°C, reference point +25°C 5
Resistance range (type 2512) R 1 680 mΩ Type 2512 standard part; 2512-L range (0.5-4 mΩ) not applicable 5
Operating temperature range -55 170 °C Operating temperature range, all types 5
Storage humidity 30 70 %RH Storage/carry conditions 11
High temperature exposure ΔR △R -1 1 % T=170℃, 1000 hrs, measured 24 hrs after test conclusion 6
Low temperature exposure ΔR △R -0.5 0.5 % T=-55℃, 1000 hrs, measured 24 hrs after test conclusion 6
Temperature cycling ΔR △R -0.5 0.5 % 1000 cycles (-55℃ to 125℃), measured 24 hrs after test conclusion 6
Short time overload ΔR △R -0.5 0.5 % 5 X rated power for 5 s 6
Moisture resistance ΔR △R -1 1 % 24 hours per cycle, 10 cycles, zero power 6
Biased humidity ΔR △R -0.5 0.5 % 10% rated power at 85℃, RH 85%, 1000 hrs, measured 24 hrs after test 6
Load life ΔR △R -1 1 % 1000 h at +70 °C, 1.5 h ON / 0.5 h OFF, measured 24 hrs after test 7
Resistance to soldering heat ΔR △R -0.5 0.5 % 260±5℃ solder, 10±1 sec dwell 7
Mechanical shock ΔR △R -0.5 0.5 % 100 g's, half sine, 6 ms, 3 shocks in each of 6 directions 7
Resistance to vibration ΔR △R -0.5 0.5 % 5 g's, 20 min per cycle, 10-2000 Hz, 12 cycles in X, Y, Z 7
Board flex ΔR △R -0.5 0.5 % Min 2 mm deflection, 60 sec 7
Thermal shock ΔR △R -1 1 % -55°C/+155°C, 1000 cycles, 15 min dwell, transfer time max 20 s 7
ESD ΔR △R -1 1 % Direct contact ±6 kV; air discharge +12/+16/+25 kV 7
Resistance nominal value (part code R005) R 5 mΩ Part-number code R005 = 5mΩ; Kelvin four-terminal measurement at bottom test point 2
Rated power at P70 P70 2 W Type 2512 (standard), power rating at P70 5
Rated current 63 A Type 2512 (standard); printed without min/max designation 5
Max overload current 141 A Type 2512 (standard); printed without min/max designation 5
Dielectric withstanding voltage 500 V DC Listed under features; printed as 500V DC withstanding voltage 2

CAD (KiCad official)

  • Symbol: FRM253WJR005TM
  • Footprint: Resistor_SMD:R_2512_6332Metric
  • 3D model: 2512 (KiCad packages3D, STEP)
  • 3D model files: frm253wjr005tm-etched.step / frm253wjr005tm-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); frm253wjr005tm.step / frm253wjr005tm.glb are the bare package body.

Provenance

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

  • Datasheet: FOJAN datasheet (12 pp, sha256 13a1c74e6b23cc10, 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