# 4953

**Guangdong Hottech** · MOSFETs · SO-8

4953 from Guangdong Hottech, in a SO-8. 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 | S2 | passive | Source of P-channel MOSFET 2; VDS rated -30V, continuous drain current -5.1A. |
| 2 | G2 | input | Gate of P-channel MOSFET 2; VGS maximum ±20V, threshold -1.1V min to -2.1V max. |
| 3 | S1 | passive | Source of P-channel MOSFET 1; VDS rated -30V, continuous drain current -5.1A. |
| 4 | G1 | input | Gate of P-channel MOSFET 1; VGS maximum ±20V, threshold -1.1V min to -2.1V max. |
| 5 | D1 | passive | Drain of P-channel MOSFET 1; RDS(ON) 55mΩ max at VGS=-10V, pulsed current -20A. |
| 6 | D1 | passive | Drain of P-channel MOSFET 1; RDS(ON) 55mΩ max at VGS=-10V, pulsed current -20A. |
| 7 | D2 | passive | Drain of P-channel MOSFET 2; RDS(ON) 55mΩ max at VGS=-10V, pulsed current -20A. |
| 8 | D2 | passive | Drain of P-channel MOSFET 2; RDS(ON) 55mΩ max at VGS=-10V, pulsed current -20A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Guangdong Hottech |
| Package | SO-8 |
| Category | Transistors/Thyristors |
| Pins | 8 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Gate-threshold voltage | VGS(th) | -1.1 | -1.6 | -2.1 | V | VDS=VGS, ID=-250μA | 1 |
| Drain-source on-resistance | RDS(ON) |  | 43 | 55 | mΩ | VGS=-10V, ID=-5.1A | 1 |
| Drain-source on-resistance | RDS(ON) |  | 62 | 90 | mΩ | VGS=-4.5V, ID=-4.2A | 1 |
| Forward transconductance | gFS | 4 | 7 |  | S | VDS=-15V, ID=-4.5A | 1 |
| Gate-body leakage current | IGSS | -100 |  | 100 | nA | VDS=0V, VGS=±20V | 1 |
| Drain-Source breakdown voltage | V(BR)DSS | -30 | -33 |  | V | VGS=0V, ID=-250μA | 1 |
| Zero gate voltage drain current | IDSS |  |  | -1 | μA | VDS=-24V, VGS=0V | 1 |
| Diode forward voltage | VSD |  |  | -1.2 | V | IS=-5.1A, VGS=0V | 1 |
| Drain-source voltage | VDS |  |  | -30 | V |  | 1 |
| Gate-source voltage | VGS | -20 |  | 20 | V |  | 1 |
| Continuous drain current | ID |  |  | -5.1 | A |  | 1 |
| Pulsed drain current | IDM |  |  | -20 | A | Note 1 | 1 |
| Power dissipation | PD |  |  | 2.5 | W |  | 1 |
| Thermal resistance from junction to ambient | RθJA |  |  | 50 | °C/W | Note 2: surface mounted on FR4 board, t ≤ 10 sec | 1 |
| Junction temperature | TJ |  |  | 150 | °C |  | 1 |
| Storage temperature | TSTG | -55 |  | 150 | °C |  | 1 |

## CAD (KiCad official)

- Symbol: `4953`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files: `4953-etched.step` / `4953-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `4953.step` / `4953.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Guangdong Hottech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588905223956148224) (6 pp, sha256 `a3e9f47bdf109d50`, retrieved 2026-10-09, 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/4953-datasheet.pdf)