component
BAS40Q
Public Made by Adomby adom
Yangzhou Yangjie Elec Tech Schottky Diodes, SOT-23(TO-236). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 9d ago |
| viewers | 9d ago |
| bas40q-etched.glb | 9d ago |
| bas40q-etched.step | 9d ago |
| bas40q-hero.glb | 9d ago |
| bas40q-hero.overlay.json | 9d ago |
| bas40q.glb | 9d ago |
| bas40q.kicad_mod | 9d ago |
| bas40q.kicad_sym | 9d ago |
| bas40q.lbr | 9d ago |
| bas40q.step | 9d ago |
| package.json | 9d ago |
| page.json | 9d ago |
| README.md | 9d ago |
BAS40Q
Yangzhou Yangjie Elec Tech · Schottky Diodes · SOT-23(TO-236)
BAS40Q from Yangzhou Yangjie Elec Tech, in a SOT-23(TO-236). 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 | A | passive | Diode terminal connected to pin 3 through the single Schottky diode in the BAS40Q pin diagram; in the diagram (and on standard BAS40 parts) this is the anode, rated at VRRM 40V and IFAV 120mA. |
| 2 | NC | unconnected | Not connected internally in the BAS40Q single-diode configuration; the pin diagram shows no connection to this lead. |
| 3 | K | passive | Diode terminal connected to pin 1 through the single Schottky diode in the BAS40Q pin diagram; the polarity is read from the diagram as the cathode, with a 40V repetitive peak reverse voltage. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Yangzhou Yangjie Elec Tech |
| Package | SOT-23(TO-236) |
| Category | Diodes |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Forward Voltage (IF=1mA) | VF | 0.38 | V | IF=1mA | 2 | ||
| Forward Voltage (IF=40mA) | VF | 1 | V | IF=40mA | 2 | ||
| Reverse Current | IR | 0.2 | μA | VR=30V | 2 | ||
| Breakdown Voltage | VR | 40 | V | IR=10μA | 2 | ||
| Junction Capacitance | CJ | 5 | pF | VR=0 V, f=1MHZ | 2 | ||
| Reverse Recovery Time | trr | 7 | ns | IF=IR=10mA,Irr=1mA,RL=100Ω | 2 | ||
| Repetitive Peak Reverse Voltage | VRRM | 40 | V | 1 | |||
| Average Forward Current | IFAV | 120 | mA | 1 | |||
| Peak Forward Surge Current | IFSM | 2 | A | square wave tp<10ms | 1 | ||
| Power Dissipation | Ptot | 250 | mW | 1 | |||
| Thermal Resistance Junction to Ambient | RthJA | 500 | K/W | 1 | |||
| Junction Temperature | Tj | -55 | 150 | ℃ | 1 | ||
| Storage Temperature Range | Tstg | -55 | 150 | ℃ | 1 |
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 |
|---|---|---|---|---|
| housing | black | 4. Body color: Black | 4 | |
| contacts | tin | ● Terminals: Tin plated leads, solderable per J-STD-002 and JESD22-B102 | 1 |
CAD (KiCad official)
- Symbol:
BAS40Q - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23(TO-236) (KiCad packages3D, STEP)
- 3D model files:
bas40q-etched.step/bas40q-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bas40q.step/bas40q.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Yangzhou Yangjie Elec Tech datasheet (5 pp, sha256
b1e912ba90d55c84, 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).