# 2SB1198KT146R

**ROHM Semicon** · Bipolar Transistors - BJT · TO-236-3(SOT-23-3)

2SB1198KT146R 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 | E | passive | Emitter terminal of the PNP transistor; VEBO max is -5V. |
| 2 | B | passive | Base terminal; Collector-base/emitter ratings are -80V, with IC/IB = -0.5A/-50mA giving VCE(sat) typ -0.2V. |
| 3 | C | passive | Collector terminal; maximum collector current is -0.5A and VCEO is -80V. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `2SB1198KT146R`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: TO-236-3(SOT-23-3) (KiCad packages3D, STEP)
- 3D model files: `2sb1198kt146r-etched.step` / `2sb1198kt146r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `2sb1198kt146r.step` / `2sb1198kt146r.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ROHM Semicon datasheet](docs/2sb1198kt146r-datasheet.pdf) (4 pp, sha256 `5f1572f6edffeb8c`, retrieved 2026-10-22, 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/2sb1198kt146r-datasheet.pdf)