# JER2512F3R075

**jieerrui** · Current Sense Resistors / Shunt Resistors · 2512

JER2512F3R075 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 | Terminal 1 of an unpolarised resistor; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised resistor; either orientation. |

## 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 (nominal, from part code R075) | R |  | 75 |  | mΩ | Part code R075; marking table p.2 lists R075 = 75mΩ | 2 |
| Resistance tolerance (part code F) |  | -1 |  | 1 | % | Tolerance letter F = 1% | 1 |
| Rated power | P |  |  | 3 | W | 2512 type, 3W rated power; load derated above 70℃ ambient | 2 |
| Temperature coefficient of resistance (TCR) | TCR | -50 |  | 50 | ppm/℃ | 2512, 2mΩ~500mΩ range (±50); TCR measured at +125℃ or +155℃ vs room temperature (IEC60115-1 4.8) | 2 |
| Insulation resistance |  | 100 |  |  | MΩ | 2512 type; printed as >100MΩ, no test voltage given | 2 |
| Operating temperature range |  | -55 |  | 170 | ℃ | Operating temperature range; power must be derated when ambient is above 70℃ | 3 |
| Short time overload resistance change | ΔR% | -1 |  | 1 | % | 5.0 times rated power applied for 5 s, measured after 5 s rest (IEC60115-1 4.13) | 6 |
| Temperature cycling resistance change | ΔR% | -1 |  | 1 | % | -55℃/+125℃, 1000 cycles, measured 24±4 h after test (JESD22 JA-104) | 6 |
| High temperature exposure resistance change | ΔR% | -1 |  | 1 | % | 125℃, 1000 h, measured 24±4 h after test (MIL-STD-202 108) | 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, measured 24±4 h after test (MIL-STD-202 103) | 6 |
| Operational life resistance change | ΔR% | -1 |  | 1 | % | 70±2℃, rated current 1.5 h on / 0.5 h off, total 1000 +48/-0 h (MIL-STD-202 108) | 7 |
| Thermal shock resistance change | ΔR% | -1 |  | 1 | % | -55/+125℃, 300 cycles, 15 min dwell, devices mounted (MIL-STD-202 107) | 7 |

## CAD (KiCad official)

- Symbol: `JER2512F3R075`
- Footprint: `Resistor_SMD:R_2512_6332Metric`
- 3D model: 2512 (KiCad packages3D, STEP)
- 3D model files: `jer2512f3r075-etched.step` / `jer2512f3r075-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `jer2512f3r075.step` / `jer2512f3r075.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [jieerrui datasheet](docs/jer2512f3r075-datasheet.pdf) (7 pp, sha256 `6c0d359d39546b43`, retrieved 2026-10-17, 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`, primary `two-terminal convention` (convention), consensus `off` (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](docs/jer2512f3r075-datasheet.pdf)