# CSD18534Q5A

**Tokmas** · MOSFETs · DFN-8(5x6)

CSD18534Q5A from Tokmas, in a DFN-8(5x6). 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 (pins 1-3 tied together); the datasheet gives continuous drain current of 55A at TC=25℃ and a 60V VDS rating. |
| 2 | S | passive | Source terminal (pins 1-3 tied together); the datasheet gives continuous drain current of 55A at TC=25℃ and a 60V VDS rating. |
| 3 | S | passive | Source terminal (pins 1-3 tied together); the datasheet gives continuous drain current of 55A at TC=25℃ and a 60V VDS rating. |
| 4 | G | input | Gate terminal with a maximum gate-source voltage of ±20V and a threshold VGS(th) of 1V min to 2.5V max at ID=250μA. |
| 5 | D | passive | Drain terminal (pins 5-8 tied together) with a maximum drain-source voltage of 60V and RDS(ON) below 10mΩ at VGS=10V. |
| 6 | D | passive | Drain terminal (pins 5-8 tied together) with a maximum drain-source voltage of 60V and RDS(ON) below 10mΩ at VGS=10V. |
| 7 | D | passive | Drain terminal (pins 5-8 tied together) with a maximum drain-source voltage of 60V and RDS(ON) below 10mΩ at VGS=10V. |
| 8 | D | passive | Drain terminal (pins 5-8 tied together) with a maximum drain-source voltage of 60V and RDS(ON) below 10mΩ at VGS=10V. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Tokmas |
| Package | DFN-8(5x6) |
| Category | Triode/MOS Tube/Transistor |
| Pins | 9 |

## CAD (KiCad official)

- Symbol: `CSD18534Q5A`
- Footprint: `Package_DFN_QFN:DFN-S-8-1EP_6x5mm_P1.27mm`
- 3D model: DFN-8(5x6) (KiCad packages3D, STEP)
- 3D model files: `csd18534q5a-etched.step` / `csd18534q5a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `csd18534q5a.step` / `csd18534q5a.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Tokmas datasheet](docs/csd18534q5a-datasheet.pdf) (4 pp, sha256 `81e029554f8f820a`, retrieved 2026-10-27, 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/csd18534q5a-datasheet.pdf)