# JER2512F3R033

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

JER2512F3R033 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 | First terminal of the 33 mΩ (R033) 3 W, 1% alloy current-sense resistor, one of two end electrodes on the 6.40 x 3.20 mm 2512 body. |
| 2 | 2 | passive | Second terminal of the 33 mΩ (R033) 3 W, 1% alloy current-sense resistor, one of two end electrodes on the 6.40 x 3.20 mm 2512 body. |

## 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 (F = ±1%) |  | -1 |  | 1 | % | Tolerance letter F in MPN | 1 |
| Temperature coefficient of resistance (TCR) | TCR | -50 |  | 50 | ppm/℃ | 2512 2W/3W, 2mΩ~500mΩ range; IEC60115-1 4.8, +125℃ or +155℃ vs room temperature | 2 |
| Insulation resistance |  | 100 |  |  | MΩ |  | 2 |
| Rated power |  |  |  | 3 | W | 2512 size, 3W rating (MPN digit 3) | 2 |
| Operating temperature range |  | -55 |  | 170 | ℃ | Above 70℃ ambient, maximum load power must be reduced per power derating curve | 3 |
| Short time overload ΔR |  | -1 |  | 1 | % | 5.0× rated power applied for 5 s (IEC60115-1 4.13) | 6 |
| Temperature cycling ΔR |  | -1 |  | 1 | % | -55℃/+125℃, 1000 cycles (JESD22 JA-104), measured 24±4 h after test | 6 |
| High temperature exposure ΔR |  | -1 |  | 1 | % | 125℃, 1000 h (MIL-STD-202 108), measured 24±4 h after test | 6 |
| Low temperature operation ΔR |  | -1 |  | 1 | % | -55℃, 45 min (IEC60115-1 4.23.4) | 6 |
| Biased humidity ΔR |  | -1 |  | 1 | % | 85℃/85%RH, 1000 h, 10% of operating power (MIL-STD-202 103) | 6 |
| Resistance to solder heat ΔR |  | -1 |  | 1 | % | Solder bath 260±5℃, 10±1 s (IEC60115-1 4.18) | 6 |
| Terminal bending ΔR |  | -1 |  | 1 | % | 2 mm deflection, 60 s (AEC-Q200-005) | 7 |
| Operational life 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 |
| Vibration ΔR |  | -1 |  | 1 | % | 5g, 10-2000 Hz, 20 min, 12 cycles (MIL-STD-202 204) | 7 |
| Mechanical shock ΔR |  | -1 |  | 1 | % | 100g, half sine, 6 ms (MIL-STD-202 213) | 7 |
| Terminal strength ΔR |  | -1 |  | 1 | % | 17.7 N, 60±1 s (AEC-Q200-006) | 7 |
| Thermal shock ΔR |  | -1 |  | 1 | % | -55/+125℃, 300 cycles (MIL-STD-202 107) | 7 |
| ESD ΔR |  | -1 |  | 1 | % | 2 kV, 2 times/1 s (AEC-Q200-002) | 7 |

## CAD (KiCad official)

- Symbol: `JER2512F3R033`
- Footprint: `Resistor_SMD:R_2512_6332Metric`
- 3D model: 2512 (KiCad packages3D, STEP)
- 3D model files: `jer2512f3r033-etched.step` / `jer2512f3r033-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `jer2512f3r033.step` / `jer2512f3r033.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [jieerrui datasheet](docs/jer2512f3r033-datasheet.pdf) (7 pp, sha256 `6c0d359d39546b43`, 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](docs/jer2512f3r033-datasheet.pdf)