component

BCR405UW6Q-7

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Diodes Incorporated LED Drivers, SOT-26. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BCR405UW6Q-7

Diodes Incorporated · LED Drivers · SOT-26

BCR405UW6Q-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; GND (enable) current is 340 to 500 µA at VS = 10V with VOUT open.
2 OUT passive Regulated output current pin to the LED string cathode, 50mA nominal, up to 100mA absolute maximum, and 40V maximum output voltage.
3 OUT passive Regulated output current pin tied to the other OUT pins, which also serve as the heat-sinking leads on the PCB copper.
4 VS power_in Supply voltage input, 40V absolute maximum, with VS-VOUT of at least 1.4V typical for regulation.
5 OUT passive Regulated output current pin tied to the other OUT pins, which also serve as the heat-sinking leads on the PCB copper.
6 Rext passive Optional external resistor connection in parallel with the internal 16.5 ohm resistor to raise output current above 50mA, 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 13 16.5 22 Ω IRINT = 50mA 3
Output Current (Nominal) IOUT 45 50 55 mA VOUT = 8.6V; VS = 10V 3
Supply Voltage VS 40 V Relative to GND, TA = +25°C 2
Output Current IOUT 100 mA Relative to GND, TA = +25°C 2
Output Voltage VOUT 40 V Relative to GND, TA = +25°C 2
Reverse Voltage Between All Terminals VR 0.5 V Relative to GND, 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: OUT leads on 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: junction to solder-point at end of OUT leads 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
GND (Enable) Current IGND 380 µA VS = 10V; VOUT = 8.6V 3
Voltage Drop (VREXT) VDROP 0.83 V IOUT = 50mA 3
Lowest Sufficient Supply Voltage (VS-VOUT) VSMIN 1.4 V IOUT > 18mA 3
Output Current Change vs. Temperature ΔIOUT/IOUT -0.25 %/°C VS = 10V 3
Output Current Change vs. Supply Voltage ΔIOUT/IOUT 1.5 %/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 1

CAD (KiCad official)

  • Symbol: BCR405UW6Q-7
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-26 (KiCad packages3D, STEP)
  • 3D model files: bcr405uw6q-7-etched.step / bcr405uw6q-7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bcr405uw6q-7.step / bcr405uw6q-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 2caecf1598b5dbbb, 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