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BAT54Q
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Yangzhou Yangjie Elec Tech Schottky Diodes, SOT-23. 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
markdownBAT54Q
Yangzhou Yangjie Elec Tech · Schottky Diodes · SOT-23
BAT54Q from Yangzhou Yangjie Elec Tech, in a SOT-23. 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 | Anode of the single Schottky diode (BAT54Q), 30V VRRM, 200mA average forward current. |
| 2 | NC | unconnected | Not connected internally on the single-diode BAT54Q; no connection is drawn to this terminal in the pin diagram. |
| 3 | K | passive | Cathode of the single Schottky diode (BAT54Q), 30V VRRM, 200mA average forward current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Yangzhou Yangjie Elec Tech |
| Package | SOT-23 |
| 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 | VF | 0.24 | V | IF=0.1mA | 2 | ||
| Forward Voltage | VF | 0.32 | V | IF=1mA | 2 | ||
| Forward Voltage | VF | 0.4 | V | IF=10mA | 2 | ||
| Forward Voltage | VF | 0.5 | V | IF=30mA | 2 | ||
| Forward Voltage | VF | 1 | V | IF=100mA | 2 | ||
| Reverse Current | IR | 2 | μA | VR=25V | 2 | ||
| Breakdown Voltage | VBR | 35 | V | IR=10μA | 2 | ||
| Junction Capacitance | CJ | 10 | pF | VR=1V, f =1MHZ | 2 | ||
| Reverse Recovery Time | trr | 5 | ns | IF=IR=10mA,Irr=1mA,RL=100Ω | 2 | ||
| Repetitive Peak Reverse Voltage | VRRM | 30 | V | 1 | |||
| Average Forward Current | IFAV | 200 | mA | 1 | |||
| Peak Forward Surge Current | IFSM | 3 | A | square wave tp＜10ms | 1 | ||
| Power Dissipation | Ptot | 200 | mW | 1 | |||
| Junction Temperature | Tj | -55 | 125 | ℃ | 1 | ||
| Storage Temperature Range | Tstg | -55 | 150 | ℃ | 1 | ||
| Thermal Resistance Junction to Ambient | RthJA | 500 | ℃/W | 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:
BAT54Q - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
bat54q-etched.step/bat54q-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bat54q.step/bat54q.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
715b1a102ad486b5, 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).