# RB420DT146

**ROHM Semicon** · Schottky Diodes · TO-236-3(SOT-23-3)

RB420DT146 from ROHM Semicon, in a TO-236-3(SOT-23-3). 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 | N/C | unconnected | No internal connection; pin (1) is listed as N/C in the inner circuit. |
| 2 | Anode | passive | Schottky diode anode; the diode is rated for VR 40 V, Io 100 mA and IFSM 1 A. |
| 3 | Cathode | passive | Schottky diode cathode; the diode is rated for VR 40 V, Io 100 mA and IFSM 1 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ROHM Semicon |
| Package | TO-236-3(SOT-23-3) |
| Category | Diodes |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `RB420DT146`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: TO-236-3(SOT-23-3) (KiCad packages3D, STEP)
- 3D model files: `rb420dt146-etched.step` / `rb420dt146-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rb420dt146.step` / `rb420dt146.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ROHM Semicon datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589836287713566720) (7 pp, sha256 `e62bb4d5d3717b04`, retrieved 2026-10-13, 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:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/rb420dt146-datasheet.pdf)