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JER2512F2R250

Public Made by Adom

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

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JER2512F2R250

jieerrui · Current Sense Resistors / Shunt Resistors · 2512

JER2512F2R250 from jieerrui, 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 Resistor terminal (small electrode, E = 0.90±0.20 mm on the 6.40×3.20 mm 2512 body); the 250 mΩ ±1% element is rated 2 W, derated above 70 °C, over -55 °C to +170 °C.
2 2 passive Second resistor terminal, interchangeable with pin 1 (non-polarized); recommended pad dimensions for 1 mΩ~500 mΩ 2512 are a=4.0, b=2.1, L=4.1 mm.

Key specifications

Parameter Value
Manufacturer jieerrui
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 -1 1 % Tolerance code F = ±1% (MPN position 'F') 1
Temperature coefficient of resistance TCR -50 50 ppm/℃ 2512, resistance range 2mΩ~500mΩ: ±50 (this part 250mΩ) 2
Nominal resistance R 250 mΩ Marking code R250 = 250mΩ (0.25 Ω) 2
Rated power P 2 W Power code '2' = 2W, 2512 size; load reduced above 70℃ ambient per derating curve 2
Resistance range R 0.5 500 mΩ 2512 resistance range 0.5mΩ~500mΩ 2
Insulation resistance 100 MΩ 2512 row printed as >100MΩ 2
Operating temperature range -55 170 ℃ Operating temperature range -55℃ to +170℃ 3
Short time overload resistance change ΔR -1 1 % 5.0× rated power for 5 s (IEC60115-1 4.13) 6
Temperature cycling resistance change ΔR -1 1 % JESD22 JA-104, -55℃/+125℃, 1000 cycles, measured 24±4 h after test 6
High temperature exposure resistance change ΔR -1 1 % 125℃, 1000 h (MIL-STD-202 108), measured 24±4 h after test 6
Low temperature operation resistance change ΔR -1 1 % -55℃, 45 min (IEC60115-1 4.23.4) 6
Biased humidity resistance change ΔR -1 1 % 10% of rated power, 85℃/85%RH, 1000 h (MIL-STD-202 103) 6
Operational life resistance change ΔR -1 1 % 70±2℃, rated current 1.5 h on / 0.5 h off, 1000 +48/-0 h (MIL-STD-202 108) 7
Vibration resistance change ΔR -1 1 % 5g, 20 min, 12 cycles, 10-2000 Hz (MIL-STD-202 204) 7
Resistance to solder heat resistance change ΔR -1 1 % Solder bath 260±5℃, 10±1 s (IEC60115-1 4.18) 7
Terminal bending resistance change ΔR -1 1 % 2 mm deflection, 60 s (AEC-Q200-005) 7
Mechanical shock resistance change ΔR -1 1 % 100g, half sine, 6 ms (MIL-STD-202 213) 7
Terminal strength resistance change ΔR -1 1 % Applied 17.7 N for 60±1 s (AEC-Q200-006) 7
Thermal shock resistance change ΔR -1 1 % -55/+125℃, 300 cycles, devices mounted (MIL-STD-202 107) 7
ESD resistance change ΔR -1 1 % AEC-Q200-002, 2 kV, 2 times at 1 s interval 7

CAD (KiCad official)

  • Symbol: JER2512F2R250
  • Footprint: Resistor_SMD:R_2512_6332Metric
  • 3D model: 2512 (KiCad packages3D, STEP)
  • 3D model files: jer2512f2r250-etched.step / jer2512f2r250-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); jer2512f2r250.step / jer2512f2r250.glb are the bare package body.

Provenance

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

  • Datasheet: jieerrui datasheet (7 pp, sha256 6c0d359d39546b43, retrieved 2026-10-24, 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