# 73L2R56J

**CTS Electronic Components** · Current Sense Resistors / Shunt Resistors · 0603

73L2R56J from CTS Electronic Components, in a 0603. 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 | CTS Electronic Components |
| Package | 0603 |
| Category | Resistors |
| Pins | 2 |

## Electrical characteristics

Limits from the LCSC catalog entry for this part (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Resistance |  |  | 560 |  | mΩ | nominal, catalog attribute (LCSC C2092276) | catalog |
| Tolerance |  | -5 |  | 5 | % | catalog attribute (LCSC C2092276) | catalog |
| Rated power |  |  |  | 0.1 | W | catalog attribute (LCSC C2092276) | catalog |
| Temperature coefficient | TCR | -300 |  | 300 | ppm/°C | catalog description (LCSC C2092276) | catalog |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts |  | tin |  Terminal Finish, Matte Tin (e3)  Reflow Capable per JEDEC J-STD-020, +260°C maximum | 1 |

## CAD (KiCad official)

- Symbol: `73L2R56J`
- Footprint: `Resistor_SMD:R_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `73l2r56j-etched.step` / `73l2r56j-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `73l2r56j.step` / `73l2r56j.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [CTS Electronic Components datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589809214035300352) (7 pp, sha256 `a1a5a7a8fd8b04ec`, 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/73l2r56j-datasheet.pdf)