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BCR 401W H6327
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Infineon Technologies LED Drivers, SOT-343. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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BCR 401W H6327
Infineon Technologies · LED Drivers · SOT-343
BCR 401W H6327 from Infineon Technologies, in a SOT-343. 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 | GND | power_in | Ground pin of the LED driver; dimming is possible by using an external digital transistor at this pin. |
| 2 | IOUT | output | LED current output, preset to 10 mA and adjustable up to 60 mA with Rext, with maximum output voltage of 18 V. |
| 3 | VS | power_in | Supply voltage pin, up to 18 V maximum with a 1.2 V typical minimum voltage overhead. |
| 4 | Rext | passive | Optional external resistor connection in parallel with the internal 79 Ω resistor to raise output current from 10 mA up to 60 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Infineon Technologies |
| Package | SOT-343 |
| Category | Display Modules / LED Drivers / Display Drivers |
| Pins | 4 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Collector-emitter breakdown voltage | VBR(CEO) | 18 | V | IC = 100 µA, IB = 0 | 9 | ||
| Supply current | IS | 350 | 440 | 540 | µA | VS = 10 V | 9 |
| Internal resistor | Rint | 68 | 79 | 90 | Ω | IRint = 10 mA | 9 |
| Output current | Iout | 9 | 10 | 11 | mA | VS = 10 V, Vout = 7.6 V | 9 |
| Supply voltage | VS | 18 | V | TA = 25 °C | 9 | ||
| Output current | Iout | 60 | mA | TA = 25 °C | 9 | ||
| Output voltage | Vout | 18 | V | TA = 25 °C | 9 | ||
| Reverse voltage between all terminals | VR | 0.5 | V | TA = 25 °C | 9 | ||
| Total power dissipation | Ptot | 500 | mW | TS ≤ 95 °C | 9 | ||
| Junction temperature | TJ | 150 | °C | TA = 25 °C | 9 | ||
| Storage temperature range | TSTG | -65 | 150 | °C | 9 | ||
| Thermal resistance junction - soldering point | RthJS | 110 | K/W | TA = 25 °C | 9 | ||
| DC current gain | hFE | 150 | - | IC = 50 mA, VCE = 1 V | 9 | ||
| Voltage drop (VRext) | Vdrop | 0.79 | V | Iout = 10 mA | 9 | ||
| Lowest sufficient supply voltage overhead | VSmin | 1.2 | V | Iout > 8 mA | 9 | ||
| Output current change versus TA | ∆Iout/Iout | -0.3 | %/K | VS = 10 V | 9 | ||
| Output current change versus VS | ∆Iout/Iout | 2 | %/V | VS = 10 V | 9 |
CAD (KiCad official)
- Symbol:
BCR 401W H6327 - Footprint:
Package_TO_SOT_SMD:SOT-343_SC-70-4 - 3D model: SOT-343 (KiCad packages3D, STEP)
- 3D model files:
bcr-401w-h6327-etched.step/bcr-401w-h6327-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bcr-401w-h6327.step/bcr-401w-h6327.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Infineon Technologies datasheet (17 pp, sha256
8fd4fb7543ed7be5, retrieved 2026-10-23, tier: manufacturer) - 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).
# BCR 401W H6327
**Infineon Technologies** · LED Drivers · SOT-343
BCR 401W H6327 from Infineon Technologies, in a SOT-343. 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 | GND | power_in | Ground pin of the LED driver; dimming is possible by using an external digital transistor at this pin. |
| 2 | IOUT | output | LED current output, preset to 10 mA and adjustable up to 60 mA with Rext, with maximum output voltage of 18 V. |
| 3 | VS | power_in | Supply voltage pin, up to 18 V maximum with a 1.2 V typical minimum voltage overhead. |
| 4 | Rext | passive | Optional external resistor connection in parallel with the internal 79 Ω resistor to raise output current from 10 mA up to 60 mA. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Infineon Technologies |
| Package | SOT-343 |
| Category | Display Modules / LED Drivers / Display Drivers |
| Pins | 4 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Collector-emitter breakdown voltage | VBR(CEO) | 18 | | | V | IC = 100 µA, IB = 0 | 9 |
| Supply current | IS | 350 | 440 | 540 | µA | VS = 10 V | 9 |
| Internal resistor | Rint | 68 | 79 | 90 | Ω | IRint = 10 mA | 9 |
| Output current | Iout | 9 | 10 | 11 | mA | VS = 10 V, Vout = 7.6 V | 9 |
| Supply voltage | VS | | | 18 | V | TA = 25 °C | 9 |
| Output current | Iout | | | 60 | mA | TA = 25 °C | 9 |
| Output voltage | Vout | | | 18 | V | TA = 25 °C | 9 |
| Reverse voltage between all terminals | VR | | | 0.5 | V | TA = 25 °C | 9 |
| Total power dissipation | Ptot | | | 500 | mW | TS ≤ 95 °C | 9 |
| Junction temperature | TJ | | | 150 | °C | TA = 25 °C | 9 |
| Storage temperature range | TSTG | -65 | | 150 | °C | | 9 |
| Thermal resistance junction - soldering point | RthJS | | | 110 | K/W | TA = 25 °C | 9 |
| DC current gain | hFE | | 150 | | - | IC = 50 mA, VCE = 1 V | 9 |
| Voltage drop (VRext) | Vdrop | | 0.79 | | V | Iout = 10 mA | 9 |
| Lowest sufficient supply voltage overhead | VSmin | | 1.2 | | V | Iout > 8 mA | 9 |
| Output current change versus TA | ∆Iout/Iout | | -0.3 | | %/K | VS = 10 V | 9 |
| Output current change versus VS | ∆Iout/Iout | | 2 | | %/V | VS = 10 V | 9 |
## CAD (KiCad official)
- Symbol: `BCR 401W H6327`
- Footprint: `Package_TO_SOT_SMD:SOT-343_SC-70-4`
- 3D model: SOT-343 (KiCad packages3D, STEP)
- 3D model files: `bcr-401w-h6327-etched.step` / `bcr-401w-h6327-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bcr-401w-h6327.step` / `bcr-401w-h6327.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Infineon Technologies datasheet](docs/bcr-401w-h6327-datasheet.pdf) (17 pp, sha256 `8fd4fb7543ed7be5`, retrieved 2026-10-23, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/bcr-401w-h6327-datasheet.pdf)