# CMS4435

**Cmos** · MOSFETs · SOP-8

CMS4435 from Cmos, in a SOP-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 | S | passive | Source terminal of the P-channel MOSFET, rated for VDS of -30V with VGS of ±20V. |
| 2 | S | passive | Source terminal of the P-channel MOSFET, rated for VDS of -30V with VGS of ±20V. |
| 3 | S | passive | Source terminal of the P-channel MOSFET, rated for VDS of -30V with VGS of ±20V. |
| 4 | G | input | Gate terminal of the P-channel MOSFET, with VGS limited to ±20V and gate threshold between -1V and -3V. |
| 5 | D | passive | Drain terminal of the P-channel MOSFET, rated for continuous drain current of -9A. |
| 6 | D | passive | Drain terminal of the P-channel MOSFET, rated for continuous drain current of -9A. |
| 7 | D | passive | Drain terminal of the P-channel MOSFET, rated for continuous drain current of -9A. |
| 8 | D | passive | Drain terminal of the P-channel MOSFET, rated for continuous drain current of -9A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Cmos |
| Package | SOP-8 |
| Category | Triode/MOS Tube/Transistor |
| 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 |
|---|---|---|---|---|---|---|---|
| Drain-Source Voltage | VDS |  |  | -30 | V |  | 1 |
| Gate-Source Voltage | VGS | -20 |  | 20 | V |  | 1 |
| Continuous Drain Current | ID |  |  | -9 | A |  | 1 |
| Pulsed Drain Current | IDM |  |  | -27 | A |  | 1 |
| Total Power Dissipation | PD |  |  | 2.5 | W | TA=25℃ | 1 |
| Storage Temperature Range | TSTG | -55 |  | 150 | ℃ |  | 1 |
| Operating Junction Temperature Range | TJ | -55 |  | 150 | ℃ |  | 1 |
| Thermal Resistance, Junction-to-Ambient | RθJA |  |  | 50 | ℃/W |  | 1 |
| Drain-Source Breakdown Voltage | BVDSS | -30 |  |  | V | VGS=0V , ID=-250μA | 2 |
| Static Drain-Source On-Resistance | RDS(ON) |  |  | 25 | mΩ | VGS=-10V , ID=-8A | 2 |
| Static Drain-Source On-Resistance | RDS(ON) |  |  | 36 | mΩ | VGS=-4.5V , ID=-4A | 2 |
| Gate Threshold Voltage | VGS(th) | -1 |  | -3 | V | VGS=VDS , ID = -250μA | 2 |
| Drain-Source Leakage Current | IDSS |  |  | -1 | uA | VDS=-24V, VGS=0V | 2 |
| Gate-Source Leakage Current | IGSS | -100 |  | 100 | nA | VGS = ±20V , VDS=0V | 2 |
| Diode Forward Voltage | VSD |  |  | -1.2 | V | VGS=0V , ISD =-5A | 2 |

## CAD (KiCad official)

- Symbol: `CMS4435`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `cms4435-etched.step` / `cms4435-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cms4435.step` / `cms4435.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Cmos datasheet](docs/cms4435-datasheet.pdf) (2 pp, sha256 `5bfa0b70e2744842`, retrieved 2026-10-27, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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/cms4435-datasheet.pdf)