# APSRP25K4FR004

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

APSRP25K4FR004 from prosemi, 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 | prosemi |
| 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 (code F = ±1%) |  | -1 |  | 1 | % | Part-number code F: ±1% | 1 |
| Temperature coefficient of resistance (element material K) | TCR | -75 |  | 75 | ppm/℃ | Resistance range 4 mΩ, 2512, material K, ±0.5%;±1%;±2%;±5% | 1 |
| Operation temperature range |  | -55 |  | 170 | ℃ |  | 1 |
| Power rating | P |  |  | 4 | W | Power at terminal temperature of 70℃; derate above 70℃ per power derating curve | 1 |
| Resistance (nominal) | R |  | 4 |  | mΩ | Measured at room temperature 25℃±5℃ (IEC60115-1 4.5) | 1 |
| Short time overload resistance change | ΔR/R | -0.5 |  | 0.5 | % | 5 times rated power for 5 seconds; measured after 24 hours standing | 5 |
| High temperature storage resistance change | ΔR/R | -1 |  | 1 | % | 170℃ for 1000 hours, no power | 5 |
| Temperature cycling resistance change | ΔR/R | -0.1 |  | 0.1 | % | Pre-treated 3X reflow, -55℃ (15min)/+150℃ (15min), 1000 cycles | 5 |
| Bias humidity resistance change | ΔR/R | -0.5 |  | 0.5 | % | +85℃, 85% RH, 10% of operating power, 1000 hours | 5 |
| Operational life resistance change | ΔR/R | -1 |  | 1 | % | 70℃±2℃, 1000 hours, at rated power 1.5 hours ON, 0.5 hours OFF | 5 |
| Mechanical shock resistance change | ΔR/R | -0.5 |  | 0.5 | % | Condition C, 100 g's, 6 msec, 3 axes, 18 shocks | 5 |
| Vibration resistance change | ΔR/R | -0.5 |  | 0.5 | % | 5g's for 20 minutes, 12 cycles each of 3 orientations, 10 Hz - 2000 Hz | 5 |
| Resistance to soldering heat resistance change | ΔR/R | -0.5 |  | 0.5 | % | Condition K, temperature above 217℃, 60s, 150s | 5 |
| ESD resistance change | ΔR/R | -1 |  | 1 | % | Direct contact discharge 8KV, air discharge 25KV | 5 |
| Board flex resistance change | ΔR/R | -0.5 |  | 0.5 | % | Bend the board x = 2 mm minimum, 60 (+5) sec | 5 |
| Terminal strength resistance change | ΔR/R | -0.5 |  | 0.5 | % | 17.7 N (1.8 Kg) force applied to side of device for 60 +1 seconds | 5 |

## CAD (KiCad official)

- Symbol: `APSRP25K4FR004`
- Footprint: `Resistor_SMD:R_2512_6332Metric`
- 3D model: 2512 (KiCad packages3D, STEP)
- 3D model files: `apsrp25k4fr004-etched.step` / `apsrp25k4fr004-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `apsrp25k4fr004.step` / `apsrp25k4fr004.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [prosemi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590921234756546560) (7 pp, sha256 `d524d613424da036`, retrieved 2026-10-17, tier: lcsc)
- **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/apsrp25k4fr004-datasheet.pdf)