component
SWD740D
Public Made by Adomby adom
Samwin MOSFETs, TO-252. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownSWD740D
Samwin · MOSFETs · TO-252
SWD740D from Samwin, 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 | Gate | input | Gate terminal of the N-channel MOSFET, rated for VGS of ±30 V maximum with a typical threshold of 2.5 to 4.5 V. |
| 2 | Drain | passive | Drain terminal of the N-channel MOSFET, rated for VDSS of 400 V and continuous drain current of 10 A at TC=25°C. |
| 3 | Source | passive | Source terminal of the N-channel MOSFET, with continuous body-diode source current of 10 A and pulsed source current of 40 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Samwin |
| 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 to source voltage | VDSS | 400 | V | 1 | |||
| Continuous drain current | ID | 10 | A | TC=25°C | 1 | ||
| Continuous drain current | ID | 6.3 | A | TC=100°C | 1 | ||
| Drain current pulsed | IDM | 40 | A | note 1 | 1 | ||
| Gate to source voltage | VGS | -30 | 30 | V | 1 | ||
| Single pulsed avalanche energy | EAS | 405 | mJ | note 2 | 1 | ||
| Repetitive avalanche energy | EAR | 40 | mJ | note 1 | 1 | ||
| Peak diode recovery dv/dt | dv/dt | 5 | V/ns | note 3 | 1 | ||
| Total power dissipation | PD | 119 | W | TC=25°C, TO-252 | 1 | ||
| Derating factor above 25°C | 0.95 | W/°C | TO-252 | 1 | |||
| Operating junction and storage temperature | TSTG, TJ | -55 | 150 | °C | 1 | ||
| Maximum lead temperature for soldering | TL | 300 | °C | 1/8 from case for 5 seconds | 1 | ||
| Thermal resistance, junction to case | Rthjc | 1.05 | °C/W | TO-252 | 1 | ||
| Drain to source breakdown voltage | BVDSS | 400 | V | VGS=0V, ID=250uA | 2 | ||
| Drain to source leakage current | IDSS | 1 | uA | VDS=400V, VGS=0V | 2 | ||
| Drain to source leakage current | IDSS | 50 | uA | VDS=320V, TJ=125°C | 2 | ||
| Gate to source leakage current, forward | IGSS | 100 | nA | VGS=30V, VDS=0V | 2 | ||
| Gate to source leakage current, reverse | IGSS | -100 | nA | VGS=-30V, VDS=0V | 2 | ||
| Gate threshold voltage | VGS(TH) | 2.5 | 4.5 | V | VDS=VGS, ID=250uA | 2 | |
| Drain to source on state resistance | RDS(ON) | 0.4 | 0.5 | Ω | VGS=10V, ID=5A, TJ=25°C | 2 | |
| Drain to source on state resistance | RDS(ON) | 0.9 | Ω | VGS=10V, ID=5A, TJ=125°C | 2 | ||
| Continuous source current | IS | 10 | A | Integral reverse p-n junction diode in the MOSFET | 2 | ||
| Pulsed source current | ISM | 40 | A | 2 | |||
| Diode forward voltage drop | VSD | 1.4 | V | IS=10A, VGS=0V | 2 | ||
| Breakdown voltage temperature coefficient | ΔBVDSS/ΔTJ | 0.54 | V/°C | ID=250uA, referenced to 25°C | 2 | ||
| Forward transconductance | Gfs | 8.5 | S | VDS=30V, ID=5A | 2 | ||
| Input capacitance | Ciss | 1358 | pF | VGS=0V, VDS=25V, f=1MHz | 2 | ||
| Output capacitance | Coss | 161 | pF | VGS=0V, VDS=25V, f=1MHz | 2 | ||
| Reverse transfer capacitance | Crss | 20 | pF | VGS=0V, VDS=25V, f=1MHz | 2 | ||
| Turn on delay time | td(on) | 18 | ns | VDS=200V, ID=10A, RG=10Ω, VGS=10V | 2 | ||
| Rising time | tr | 44 | ns | VDS=200V, ID=10A, RG=10Ω, VGS=10V | 2 | ||
| Turn off delay time | td(off) | 47 | ns | VDS=200V, ID=10A, RG=10Ω, VGS=10V | 2 | ||
| Fall time | tf | 31 | ns | VDS=200V, ID=10A, RG=10Ω, VGS=10V | 2 | ||
| Total gate charge | Qg | 35 | nC | VDS=320V, VGS=10V, ID=10A, IG=3mA | 2 | ||
| Gate-source charge | Qgs | 8 | nC | VDS=320V, VGS=10V, ID=10A, IG=3mA | 2 | ||
| Gate-drain charge | Qgd | 15 | nC | VDS=320V, VGS=10V, ID=10A, IG=3mA | 2 | ||
| Gate resistance | Rg | 1.7 | Ω | VDS=0V, Scan F mode | 2 | ||
| Reverse recovery time | trr | 355 | ns | IS=10A, VGS=0V, dIF/dt=100A/us | 2 | ||
| Reverse recovery charge | Qrr | 2.9 | uC | IS=10A, VGS=0V, dIF/dt=100A/us | 2 |
CAD (KiCad official)
- Symbol:
SWD740D - Footprint:
Package_TO_SOT_SMD:TO-252-2 - 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files:
swd740d-etched.step/swd740d-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);swd740d.step/swd740d.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Samwin datasheet (7 pp, sha256
022c493f78647eb8, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-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).