# FRM252WFR150TM

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

FRM252WFR150TM 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 | Terminal 1 of an unpolarised resistor; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised resistor; either orientation. |

## 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 (code F = ±1%) |  | -1 |  | 1 | % |  | 2 |
| TCR (Temperature Coefficient of Resistance) | TCR | -50 |  | 50 | PPM/℃ |  | 5 |
| Rated power at P70 |  |  |  | 2 | W | at P70, 2512 standard (non -L) type | 5 |
| Rated current |  |  |  | 63 | A | 2512 standard (non -L) type | 5 |
| Max overload current |  |  |  | 141 | A | 2512 standard (non -L) type | 5 |
| Operating temperature range |  | -55 |  | 170 | ℃ |  | 5 |
| Dielectric withstanding voltage |  |  |  | 500 | V | DC | 2 |
| Resistance range (2512 standard) | R | 1 |  | 680 | mΩ |  | 3 |
| High Temperature Exposure (Storage) ΔR | ΔR | -1 |  | 1 | % | T=170℃, 1000 hrs, measured 24 hrs after test | 6 |
| Low Temperature Exposure (Storage) ΔR | ΔR | -0.5 |  | 0.5 | % | T=-55℃, 1000 hours, measured 24 hrs after test | 6 |
| Temperature Cycling ΔR | ΔR | -0.5 |  | 0.5 | % | 1000 cycles (-55℃ to 125℃), measured 24 hrs after test | 6 |
| Short time overload ΔR | ΔR | -0.5 |  | 0.5 | % | 5 X rated power for 5 s | 6 |
| Moisture Resistance ΔR | ΔR | -1 |  | 1 | % | T=24 hours/cycle, 10 cycles | 6 |
| Biased Humidity ΔR | ΔR | -0.5 |  | 0.5 | % | 10% rated power, 85℃, RH 85%, 1000 Hrs, measured 24 hrs after test | 6 |
| Load Life ΔR | ΔR | -1 |  | 1 | % | 1000 h at +70 ℃, 1.5 h ON, 0.5 h OFF, measured 24 hrs after test | 7 |
| Resistance to Soldering Heat ΔR | ΔR | -0.5 |  | 0.5 | % | T=260±5℃ solder, 10±1 sec dwell | 7 |
| Mechanical Shock ΔR | ΔR | -0.5 |  | 0.5 | % | 100g's, normal duration 6 ms, half sine shock pulse | 7 |
| Resistance to vibration ΔR | ΔR | -0.5 |  | 0.5 | % | 5g's for 20 min, 12 cycles, 10-2000Hz | 7 |
| Board Flex ΔR | ΔR | -0.5 |  | 0.5 | % | Min 2mm deflection, 60 sec | 7 |
| Thermal Shock ΔR | ΔR | -1 |  | 1 | % | -55℃/+155℃, 1000 cycles | 7 |
| ESD Test ΔR | ΔR | -1 |  | 1 | % | Direct Contact ±6kV; Air Discharge +12kV, +16kV, +25kV | 7 |

## CAD (KiCad official)

- Symbol: `FRM252WFR150TM`
- Footprint: `Resistor_SMD:R_2512_6332Metric`
- 3D model: 2512 (KiCad packages3D, STEP)
- 3D model files: `frm252wfr150tm-etched.step` / `frm252wfr150tm-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `frm252wfr150tm.step` / `frm252wfr150tm.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [FOJAN datasheet](docs/frm252wfr150tm-datasheet.pdf) (12 pp, sha256 `13a1c74e6b23cc10`, 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/frm252wfr150tm-datasheet.pdf)