# OSD70R550

**OSEN** · MOSFETs · TO-252

OSD70R550 from OSEN, in a TO-252. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | G | input | Gate. Insulated gate control terminal for the N-channel super-junction MOSFET. V_GS(th)=2.5-4.5V; absolute maximum V_GS=±30V. Drive with V_GS=10V for rated R_DS(on)=0.55Ω. |
| 2 | D | passive | Drain. High-voltage power terminal (also connected to the exposed tab of the TO-252 package for heat sinking). V_DSS=700V, I_D=7A continuous, I_DM=28A pulsed. |
| 3 | S | passive | Source. Low-side power terminal and reference for the gate drive. Forms the anode of the intrinsic body diode (I_S=7A, V_SD=1.4V typ at I_S=7A). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | OSEN |
| Package | TO-252 |
| Category | Transistors/Thyristors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `OSD70R550`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files: `osd70r550-etched.step` / `osd70r550-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `osd70r550.step` / `osd70r550.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [OSEN datasheet](docs/osd70r550-datasheet.pdf) (None pp, sha256 `2a02d138fc099064`, retrieved 2026-08-17, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/osd70r550-datasheet.pdf)