# TDM3436

**Techcode Semicon** · MOSFETs · DFN-8(5x6)

TDM3436 from Techcode Semicon, 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 of the N-channel MOSFET, tied internally to pins 2 and 3. |
| 2 | S | passive | Source of the N-channel MOSFET, tied internally to pins 1 and 3. |
| 3 | S | passive | Source of the N-channel MOSFET, tied internally to pins 1 and 2. |
| 4 | G | input | Gate of the N-channel MOSFET; VGS is rated at ±20 V maximum and RDS(ON) is specified at VGS=4.5 V and 10 V. |
| 5 | D | passive | Drain of the N-channel MOSFET, tied internally to pins 6, 7 and 8; VDS is rated at 40 V maximum. |
| 6 | D | passive | Drain of the N-channel MOSFET, tied internally to pins 5, 7 and 8; VDS is rated at 40 V maximum. |
| 7 | D | passive | Drain of the N-channel MOSFET, tied internally to pins 5, 6 and 8; VDS is rated at 40 V maximum. |
| 8 | D | passive | Drain of the N-channel MOSFET, tied internally to pins 5, 6 and 7; VDS is rated at 40 V maximum. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Techcode Semicon |
| Package | DFN-8(5x6) |
| Category | Transistors/Thyristors |
| Pins | 9 |

## CAD (KiCad official)

- Symbol: `TDM3436`
- Footprint: `Package_DFN_QFN:DFN-S-8-1EP_6x5mm_P1.27mm`
- 3D model: DFN-8(5x6) (KiCad packages3D, STEP)
- 3D model files: `tdm3436-etched.step` / `tdm3436-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tdm3436.step` / `tdm3436.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Techcode Semicon datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588903878943789056) (8 pp, sha256 `5ab1c61c7cad1762`, 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/tdm3436-datasheet.pdf)