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IRLR8743TRPBF
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Infineon Technologies MOSFETs, TO-252. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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IRLR8743TRPBF
Infineon Technologies · MOSFETs · TO-252
IRLR8743TRPBF from Infineon Technologies, 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 terminal; the datasheet gives a VGS absolute maximum of ±20V and a typical gate resistance RG of 0.85Ω (1.5Ω max). |
| 2 | D | passive | Drain terminal; the drain-to-source breakdown voltage BVDSS is 30V minimum and VDS is rated 30V in the absolute maximum ratings. |
| 3 | S | passive | Source terminal; the integral body diode has a maximum forward voltage VSD of 1.0V at IS = 20A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Infineon Technologies |
| Package | TO-252 |
| Category | Transistors/Thyristors |
| 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 Breakdown Voltage | BVDSS | 30 | V | VGS = 0V, ID = 250µA | 2 | ||
| Static Drain-to-Source On-Resistance | RDS(on) | 2.4 | 3.1 | mΩ | VGS = 10V, ID = 25A | 2 | |
| Static Drain-to-Source On-Resistance | RDS(on) | 3 | 3.9 | mΩ | VGS = 4.5V, ID = 20A | 2 | |
| Gate Threshold Voltage | VGS(th) | 1.35 | 1.9 | 2.35 | V | VDS = VGS, ID = 100µA | 2 |
| Drain-to-Source Leakage Current | IDSS | 1 | µA | VDS = 24V, VGS = 0V | 2 | ||
| Drain-to-Source Leakage Current | IDSS | 150 | µA | VDS = 24V, VGS = 0V, TJ = 125°C | 2 | ||
| Gate-to-Source Forward Leakage | IGSS | 100 | nA | VGS = 20V | 2 | ||
| Gate-to-Source Reverse Leakage | IGSS | -100 | nA | VGS = -20V | 2 | ||
| Forward Transconductance | gfs | 89 | S | VDS = 15V, ID = 20A | 2 | ||
| Total Gate Charge | Qg | 39 | 59 | nC | VGS = 4.5V, ID = 20A, VDS = 15V | 2 | |
| Gate Resistance | RG | 0.85 | 1.5 | Ω | 2 | ||
| Diode Forward Voltage | VSD | 1 | V | TJ = 25°C, IS = 20A, VGS = 0V | 2 | ||
| Reverse Recovery Time | trr | 18 | 27 | ns | TJ = 25°C, IF = 20A, VDD = 15V, di/dt = 300A/µs | 2 | |
| Reverse Recovery Charge | Qrr | 32 | 48 | nC | TJ = 25°C, IF = 20A, VDD = 15V, di/dt = 300A/µs | 2 | |
| Avalanche Current | IAR | 20 | A | 2 | |||
| Drain-to-Source Voltage | VDS | 30 | V | 1 | |||
| Gate-to-Source Voltage | VGS | -20 | 20 | V | 1 | ||
| Continuous Drain Current, VGS @ 10V | ID | 160 | A | TC = 25°C | 1 | ||
| Continuous Drain Current, VGS @ 10V | ID | 113 | A | TC = 100°C | 1 | ||
| Pulsed Drain Current | IDM | 640 | A | 1 | |||
| Maximum Power Dissipation | PD | 135 | W | TC = 25°C | 1 | ||
| Maximum Power Dissipation | PD | 68 | W | TC = 100°C | 1 | ||
| Linear Derating Factor | 0.9 | W/°C | 1 | ||||
| Operating Junction Temperature | TJ | -55 | 175 | °C | 1 | ||
| Storage Temperature Range | TSTG | -55 | 175 | °C | 1 | ||
| Soldering Temperature | 300 | °C | for 10 seconds (1.6mm from case) | 1 | |||
| Junction-to-Case Thermal Resistance | RθJC | 1.11 | °C/W | 1 | |||
| Junction-to-Ambient Thermal Resistance (PCB Mount) | RθJA | 50 | °C/W | PCB mount | 1 | ||
| Junction-to-Ambient Thermal Resistance | RθJA | 110 | °C/W | 1 |
CAD (KiCad official)
- Symbol:
IRLR8743TRPBF - Footprint:
Package_TO_SOT_SMD:TO-252-2 - 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files:
irlr8743trpbf-etched.step/irlr8743trpbf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);irlr8743trpbf.step/irlr8743trpbf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Infineon Technologies datasheet (11 pp, sha256
75e8c7db9b161bb3, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).
# IRLR8743TRPBF
**Infineon Technologies** · MOSFETs · TO-252
IRLR8743TRPBF from Infineon Technologies, 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 terminal; the datasheet gives a VGS absolute maximum of ±20V and a typical gate resistance RG of 0.85Ω (1.5Ω max). |
| 2 | D | passive | Drain terminal; the drain-to-source breakdown voltage BVDSS is 30V minimum and VDS is rated 30V in the absolute maximum ratings. |
| 3 | S | passive | Source terminal; the integral body diode has a maximum forward voltage VSD of 1.0V at IS = 20A. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Infineon Technologies |
| Package | TO-252 |
| Category | Transistors/Thyristors |
| 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 Breakdown Voltage | BVDSS | 30 | | | V | VGS = 0V, ID = 250µA | 2 |
| Static Drain-to-Source On-Resistance | RDS(on) | | 2.4 | 3.1 | mΩ | VGS = 10V, ID = 25A | 2 |
| Static Drain-to-Source On-Resistance | RDS(on) | | 3 | 3.9 | mΩ | VGS = 4.5V, ID = 20A | 2 |
| Gate Threshold Voltage | VGS(th) | 1.35 | 1.9 | 2.35 | V | VDS = VGS, ID = 100µA | 2 |
| Drain-to-Source Leakage Current | IDSS | | | 1 | µA | VDS = 24V, VGS = 0V | 2 |
| Drain-to-Source Leakage Current | IDSS | | | 150 | µA | VDS = 24V, VGS = 0V, TJ = 125°C | 2 |
| Gate-to-Source Forward Leakage | IGSS | | | 100 | nA | VGS = 20V | 2 |
| Gate-to-Source Reverse Leakage | IGSS | | | -100 | nA | VGS = -20V | 2 |
| Forward Transconductance | gfs | 89 | | | S | VDS = 15V, ID = 20A | 2 |
| Total Gate Charge | Qg | | 39 | 59 | nC | VGS = 4.5V, ID = 20A, VDS = 15V | 2 |
| Gate Resistance | RG | | 0.85 | 1.5 | Ω | | 2 |
| Diode Forward Voltage | VSD | | | 1 | V | TJ = 25°C, IS = 20A, VGS = 0V | 2 |
| Reverse Recovery Time | trr | | 18 | 27 | ns | TJ = 25°C, IF = 20A, VDD = 15V, di/dt = 300A/µs | 2 |
| Reverse Recovery Charge | Qrr | | 32 | 48 | nC | TJ = 25°C, IF = 20A, VDD = 15V, di/dt = 300A/µs | 2 |
| Avalanche Current | IAR | | | 20 | A | | 2 |
| Drain-to-Source Voltage | VDS | | | 30 | V | | 1 |
| Gate-to-Source Voltage | VGS | -20 | | 20 | V | | 1 |
| Continuous Drain Current, VGS @ 10V | ID | | | 160 | A | TC = 25°C | 1 |
| Continuous Drain Current, VGS @ 10V | ID | | | 113 | A | TC = 100°C | 1 |
| Pulsed Drain Current | IDM | | | 640 | A | | 1 |
| Maximum Power Dissipation | PD | | | 135 | W | TC = 25°C | 1 |
| Maximum Power Dissipation | PD | | | 68 | W | TC = 100°C | 1 |
| Linear Derating Factor | | | | 0.9 | W/°C | | 1 |
| Operating Junction Temperature | TJ | -55 | | 175 | °C | | 1 |
| Storage Temperature Range | TSTG | -55 | | 175 | °C | | 1 |
| Soldering Temperature | | | | 300 | °C | for 10 seconds (1.6mm from case) | 1 |
| Junction-to-Case Thermal Resistance | RθJC | | | 1.11 | °C/W | | 1 |
| Junction-to-Ambient Thermal Resistance (PCB Mount) | RθJA | | | 50 | °C/W | PCB mount | 1 |
| Junction-to-Ambient Thermal Resistance | RθJA | | | 110 | °C/W | | 1 |
## CAD (KiCad official)
- Symbol: `IRLR8743TRPBF`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files: `irlr8743trpbf-etched.step` / `irlr8743trpbf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `irlr8743trpbf.step` / `irlr8743trpbf.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Infineon Technologies datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586179043876622336) (11 pp, sha256 `75e8c7db9b161bb3`, retrieved 2026-10-18, 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/irlr8743trpbf-datasheet.pdf)