component

QSBT40-7-F

Public Made by Adom

by adom

Diodes Incorporated ESD And Surge Protection (TVS/ESD), SOT-363. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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QSBT40-7-F

Diodes Incorporated · ESD And Surge Protection (TVS/ESD) · SOT-363

QSBT40-7-F from Diodes Incorporated, in a SOT-363. 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 DL4 passive Data line 4, clamped by Schottky diodes to VCC and GND; capacitance to VCC or GND is 10.0 pF typ at VR = 0, f = 1 MHz.
2 GND power_in Ground reference for the Schottky clamp diodes of the four data lines.
3 DL3 passive Data line 3, clamped by Schottky diodes to VCC and GND; ESD protection of 15 kV air and 8 kV contact per IEC61000-4-2.
4 DL2 passive Data line 2, clamped by Schottky diodes to VCC and GND; reverse voltage rating of 30 V.
5 VCC power_in Positive reference rail for the Schottky clamp diodes of the four data lines; maximum DC blocking voltage is 30 V.
6 DL1 passive Data line 1, clamped by Schottky diodes to VCC and GND; capacitance between data lines is 6.5 pF typ at VR = 0, f = 1 MHz.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-363
Category Circuit Protection
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
Peak Repetitive Reverse Voltage / Working Peak Reverse Voltage / DC Blocking Voltage VRRM / VRWM / VR 30 V 2
Forward Continuous Current (Note 6) IFM 200 mA Note 6: device mounted on FR-4 PCB 2
Non-Repetitive Peak Forward Surge Current IFSM 600 mA t < 1.0s 2
Power Dissipation (Note 6) PD 200 mW Note 6: device mounted on FR-4 PCB 2
Thermal Resistance Junction to Ambient Air (Note 6) RθJA 625 °C/W Note 6: device mounted on FR-4 PCB 2
Operating Temperature Range TJ -55 125 °C 2
Storage Temperature Range TSTG -65 125 °C 2
Reverse Breakdown Voltage (Note 7) V(BR)R 30 V IR = 100μA 2
Forward Voltage VF 280 mV IF = 0.1mA, tp < 300µS 2
Forward Voltage VF 350 mV IF = 1.0mA, tp < 300µS 2
Forward Voltage VF 450 mV IF = 10mA, tp < 300µS 2
Forward Voltage VF 550 mV IF = 30mA, tp < 300µS 2
Forward Voltage VF 1000 mV IF = 100mA, tp < 300µS 2
Reverse Current (Note 7) IR 2 μA VR = 25V 2
Reverse Recovery Time trr 5 ns IF = IR = 10mA, Irr = 0.1 x IR, RL = 100Ω 2

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: Lead Free Plating (Matte Tin Finish annealed over Alloy 42 leadframe). Solderable per MIL-STD-202, Method 208 1

CAD (KiCad official)

  • Symbol: QSBT40-7-F
  • Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
  • 3D model: SOT-363 (KiCad packages3D, STEP)
  • 3D model files: qsbt40-7-f-etched.step / qsbt40-7-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); qsbt40-7-f.step / qsbt40-7-f.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (4 pp, sha256 97aaca40ace33b7f, retrieved 2026-10-18, tier: lcsc)
  • 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