# YC124-JR-072K7L

**YAGEO** · Resistor Networks, Arrays · 0402x4

YC124-JR-072K7L from YAGEO, in a 0402x4. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model). The symbol is generated from that pin table, the footprint is an Adom_Gen land derived from the manufacturer drawing, and the 3D model is generated to fit it.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | R1_A | passive | One terminal of resistor R1, connected internally to pin 5 through R1 (R1 = R2 = R3 = R4). |
| 2 | R2_A | passive | One terminal of resistor R2, connected internally to pin 6 through R2 (R1 = R2 = R3 = R4). |
| 3 | R3_A | passive | One terminal of resistor R3, connected internally to pin 7 through R3 (R1 = R2 = R3 = R4). |
| 4 | R4_A | passive | One terminal of resistor R4, connected internally to pin 8 through R4 (R1 = R2 = R3 = R4). |
| 5 | R1_B | passive | Other terminal of resistor R1, connected internally to pin 1 through R1. |
| 6 | R2_B | passive | Other terminal of resistor R2, connected internally to pin 2 through R2. |
| 7 | R3_B | passive | Other terminal of resistor R3, connected internally to pin 3 through R3. |
| 8 | R4_B | passive | Other terminal of resistor R4, connected internally to pin 4 through R4. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | YAGEO |
| Package | 0402x4 |
| Category | Resistors |
| Pins | 8 |

## 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 |  |  | 2.7 |  | kΩ | nominal, catalog attribute (LCSC C326863) | catalog |
| Tolerance |  | -5 |  | 5 | % | catalog attribute (LCSC C326863) | catalog |
| Rated power |  |  |  | 62.5 | mW | catalog attribute (LCSC C326863) | catalog |
| Temperature coefficient | TCR | -200 |  | 200 | ppm/°C | catalog description (LCSC C326863) | catalog |

## CAD (Adom-generated)

- Symbol: `YC124-JR-072K7L`
- Footprint: `Adom_Gen:YAGEO_YC124_3ff155`
- 3D model: generated to fit the land (STEP)

## Provenance

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

- **Datasheet:** [YAGEO datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8755460162327470080) (12 pp, sha256 `5bdf9b18c106780d`, retrieved 2026-11-13, tier: lcsc)
- **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:** symbol generated from the datasheet pin table; footprint an Adom_Gen land derived from the manufacturer drawing; 3D model generated to fit that land. Land: YAGEO 'Chip resistors mounting' Product Specification Feb. 13, 2018 V.10 (cited by the series sheet's 'FOOTPRINT AND SOLDERING PROFILES'), p.5 Fig. 5 / Table 3 row '4 × 0402 (8P4R) YC/TC 124': A 0.50 (row gap), B 0.30 (land width), F 1.80 (outer span), P 0.50 (pitch). Lands 0.65 x 0.3 at x +/-0.575. Numbered to YAGEO ARRAY CHIP RESISTORS YC/TC Product Specification December 26, 2024 V.10 p.5 'Fig. 11 Equivalent circuit diagram', YC104/124/164/324: bottom row '1 2 3 4', top row '5 6 7 8', both left to right; R1 straight across 1-5, R2 2-6, R3 3-7, R4 4-8; 'R1 = R2 = R3 = R4': 5 is across from 1. KiCad's R_Array_Convex numbers counter-clockwise (8 across from 1) and does not match YAGEO.

[Datasheet PDF](docs/yc124-jr-072k7l-datasheet.pdf)