# EXB-28V105JX

**PANASONIC** · Global Sourcing Parts · 0402x4

EXB-28V105JX from PANASONIC, in a 0402x4. 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 | R1_A | passive | One terminal of isolated resistor R1 (paired with pin 8), 0.063 W per element at 70 °C, limiting element voltage 50 V, ±5 %. |
| 2 | R2_A | passive | One terminal of isolated resistor R2 (paired with pin 7), 0.063 W per element at 70 °C, limiting element voltage 50 V, ±5 %. |
| 3 | R3_A | passive | One terminal of isolated resistor R3 (paired with pin 6), 0.063 W per element at 70 °C, limiting element voltage 50 V, ±5 %. |
| 4 | R4_A | passive | One terminal of isolated resistor R4 (paired with pin 5), 0.063 W per element at 70 °C, limiting element voltage 50 V, ±5 %. |
| 5 | R4_B | passive | Other terminal of isolated resistor R4 (paired with pin 4), maximum overload voltage 100 V. |
| 6 | R3_B | passive | Other terminal of isolated resistor R3 (paired with pin 3), maximum overload voltage 100 V. |
| 7 | R2_B | passive | Other terminal of isolated resistor R2 (paired with pin 2), maximum overload voltage 100 V. |
| 8 | R1_B | passive | Other terminal of isolated resistor R1 (paired with pin 1), maximum overload voltage 100 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | PANASONIC |
| Package | 0402x4 |
| Category | Global Sourcing Parts |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `EXB-28V105JX`
- Footprint: `Resistor_SMD:R_Array_Convex_4x0402`
- 3D model: 0402x4 (KiCad packages3D, STEP)
- 3D model files: `exb-28v105jx-etched.step` / `exb-28v105jx-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `exb-28v105jx.step` / `exb-28v105jx.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [PANASONIC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590156210574946304) (8 pp, sha256 `f675a311db7d66ab`, retrieved 2026-10-26, 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:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/exb-28v105jx-datasheet.pdf)