# CMD15N50B

**Cmos** · MOSFETs · TO-252

CMD15N50B from Cmos, in a TO-252. 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 | G | input | Gate; gate-source voltage rating is ±30 V, with threshold of 2 to 4 V at ID=250uA. |
| 2 | D | passive | Drain (mounting tab); drain-source voltage rating is 500 V, continuous current 15 A at TC=25℃. |
| 3 | S | passive | Source; continuous source (body diode) current is 15 A and pulsed source current is 45 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Cmos |
| Package | TO-252 |
| Category | Triode/MOS Tube/Transistor |
| Pins | 3 |

## 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 |  |  | 500 | V |  | 1 |
| Gate-Source Voltage | VGS | -30 |  | 30 | V |  | 1 |
| Continuous Drain Current | ID |  |  | 15 | A | TC=25℃ | 1 |
| Continuous Drain Current | ID |  |  | 9.5 | A | TC=100℃ | 1 |
| Pulsed Drain Current | IDM |  |  | 45 | A | Pulse width limited by maximum junction temperature (Note 1) | 1 |
| Single Pulse Avalanche Energy | EAS |  |  | 325 | mJ | L=10mH, IAS=8A, VDD=100V, Starting TJ=25℃ (Note 2) | 1 |
| Total Power Dissipation | PD |  |  | 90 | W | TC=25℃ | 1 |
| Storage Temperature Range | TSTG | -55 |  | 150 | ℃ |  | 1 |
| Operating Junction Temperature Range | TJ | -55 |  | 150 | ℃ |  | 1 |
| Thermal Resistance Junction-ambient | RθJA |  |  | 62.5 | ℃/W |  | 1 |
| Thermal Resistance Junction-case | RθJC |  |  | 1.4 | ℃/W |  | 1 |
| Drain-Source Breakdown Voltage | BVDSS | 500 |  |  | V | VGS=0V, ID=250uA | 2 |
| Static Drain-Source On-Resistance | RDS(ON) |  |  | 0.375 | Ω | VGS=10V, ID=7.5A | 2 |
| Gate Threshold Voltage | VGS(th) | 2 |  | 4 | V | VGS=VDS, ID=250uA | 2 |
| Drain-Source Leakage Current | IDSS |  |  | 10 | uA | VDS=400V, VGS=0V, TJ=125℃ | 2 |
| Drain-Source Leakage Current | IDSS |  |  | 1 | uA | VDS=500V, VGS=0V | 2 |
| Gate-Source Leakage Current | IGSS | -100 |  | 100 | nA | VGS=±30V, VDS=0V | 2 |
| Gate-Source Charge | Qgs |  |  | 48 | nC |  | 2 |
| Continuous Source Current | IS |  |  | 15 | A |  | 2 |
| Pulsed Source Current | ISM |  |  | 45 | A | VG=VD=0V, Force Current | 2 |
| Diode Forward Voltage | VSD |  |  | 1.2 | V | VGS=0V, IS=15A, TJ=25℃ | 2 |

## CAD (KiCad official)

- Symbol: `CMD15N50B`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files: `cmd15n50b-etched.step` / `cmd15n50b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cmd15n50b.step` / `cmd15n50b.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Cmos datasheet](docs/cmd15n50b-datasheet.pdf) (2 pp, sha256 `518582fa8264774e`, retrieved 2026-11-05, 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/cmd15n50b-datasheet.pdf)