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Ray Publish 0.1.0 6b0d59e 13d ago

BCR401UW6Q-7

Diodes Incorporated · LED Drivers · SOT-26

BCR401UW6Q-7 from Diodes Incorporated, in a SOT-26. 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 Power ground, also the enable-current return (IGND typically 420µA at VS = 10V).
2 OUT passive Regulated output current to the LED string, with absolute maximum 100mA and 40V, and tied to the OUT heat-sinking copper.
3 OUT passive Regulated output current to the LED string, with absolute maximum 100mA and 40V, and tied to the OUT heat-sinking copper.
4 VS power_in Supply voltage input, rated up to 40V absolute maximum relative to GND.
5 OUT passive Regulated output current to the LED string, with absolute maximum 100mA and 40V, and tied to the OUT heat-sinking copper.
6 Rext passive Optional external resistor pin in parallel with the internal 91Ω resistor to raise output current above the preset 10mA, up to 100mA.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-26
Category Nixie Tube Driver/LED Driver
Pins 6

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 BVCEO 40 V IC = 1mA 3
GND (Enable) Current IGND 340 420 500 µA VS = 10V; VOUT = open 3
DC Current Gain hFE 100 220 470 IC = 50mA; VCE = 1V 3
Internal Resistor RINT 78 91 104 Ω IRint = 10mA 3
Output Current (Nominal) IOUT 9 10 11 mA VOUT = 8.6V; VS = 10V 3
Supply Voltage VS 40 V Voltage relative to GND, TA = +25°C 2
Output Current IOUT 100 mA TA = +25°C 2
Output Voltage VOUT 40 V TA = +25°C 2
Reverse Voltage Between All Terminals VR 0.5 V TA = +25°C 2
Power Dissipation PD 1190 mW Note 5: OUT leads on 50mm x 50mm 1oz copper 2
Power Dissipation PD 912 mW Note 6: 25mm x 25mm 1oz copper 2
Thermal Resistance, Junction to Ambient RθJA 105 °C/W Note 5: 50mm x 50mm 1oz copper 2
Thermal Resistance, Junction to Ambient RθJA 137 °C/W Note 6: 25mm x 25mm 1oz copper 2
Thermal Resistance, Junction to Lead RθJL 50 °C/W Note 7 2
Recommended Operating Junction Temperature Range TJ -55 150 °C 2
Maximum Operating Junction and Storage Temperature Range TJ, TSTG -65 150 °C 2
ESD Human Body Model ESD HBM 800 V JEDEC Class 1B 2
ESD Machine Model ESD MM 300 V JEDEC Class B 2
ESD Charged Device Model ESD CDM 1000 V JEDEC Class C6 2
GND (Enable) Current IGND 380 µA VS = 10V; VOUT = 8.6V 3
Voltage Drop (VRext) VDROP 0.91 V IOUT = 10mA 3
Lowest Sufficient Supply Voltage (VS - VOUT) VSmin 1.4 V IOUT > 8mA 3
Output Current Change versus Temperature ΔIOUT/IOUT -0.25 %/°C VS = 10V 3
Output Current Change versus Supply Voltage ΔIOUT/IOUT 1 %/V VS = 10V 3

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin  Terminals: Finish - Matte Tin Plated Leads, Solderable per MIL￾STD-202, Method 208  Weight: 0.018 grams (Approximate) 1

CAD (KiCad official)

  • Symbol: BCR401UW6Q-7
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-26 (KiCad packages3D, STEP)
  • 3D model files: bcr401uw6q-7-etched.step / bcr401uw6q-7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bcr401uw6q-7.step / bcr401uw6q-7.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (13 pp, sha256 bb9a984e28ac93ef, retrieved 2026-10-23, tier: manufacturer)
  • 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