component
QSBT40-7-F
Public Made by Adomby adom
Diodes Incorporated ESD And Surge Protection (TVS/ESD), SOT-363. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownQSBT40-7-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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);qsbt40-7-f.step/qsbt40-7-f.glbare 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, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).