component
BAR43
Public Made by Adomby adom
Changjing Schottky Barrier Diodes (SBD), 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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README
markdownBAR43
Changjing · Schottky Barrier Diodes (SBD) · SOT-23
BAR43 from Changjing, 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 (BAR43, marking D95); 30 V peak repetitive reverse voltage, 200 mA average rectified forward current. |
| 2 | NC | unconnected | Not connected internally in the single-diode BAR43; the pin is drawn as an isolated terminal in the page 1 pin diagram. |
| 3 | K | passive | Cathode of the single Schottky diode (BAR43); reverse current 0.5 µA max at VR=25 V, V(BR) 30 V min at IR=100 µA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse breakdown voltage | V(BR) | 30 | V | IR=100μA | 1 | ||
| Reverse current | IR | 0.5 | μA | VR=25V | 1 | ||
| Forward voltage | VF | 0.26 | 0.33 | V | IF=2mA | 1 | |
| Forward voltage | VF | 0.45 | V | IF=15mA | 1 | ||
| Forward voltage | VF | 0.8 | V | IF=100mA | 1 | ||
| Reverse recovery time | trr | 5 | ns | IF= IR=10mA, Irr=0.1×IR, RL=100Ω | 1 | ||
| Peak Repetitive Reverse Voltage | VRRM | 30 | V | 1 | |||
| Working Peak Reverse Voltage | VRWM | 30 | V | 1 | |||
| RMS Reverse Voltage | VR(RMS) | 21 | V | 1 | |||
| Average Rectified Forward Current | IF(AV) | 200 | mA | 1 | |||
| Non-repetitive Peak Forward Surge Current | IFSM | 0.75 | A | t=8.3ms | 1 | ||
| Power Dissipation | PD | 200 | mW | 1 | |||
| Thermal Resistance from Junction to Ambient | RΘJA | 500 | ℃/W | 1 | |||
| Junction Temperature | Tj | 125 | ℃ | 1 | |||
| Storage Temperature | Tstg | -55 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
BAR43 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
bar43-etched.step/bar43-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bar43.step/bar43.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (4 pp, sha256
48d4e9273a4b5eac, retrieved 2026-11-12, 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).