component
BAV199Q
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Yangzhou Yangjie Elec Tech Switching 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
markdownBAV199Q
Yangzhou Yangjie Elec Tech · Switching Diodes · SOT-23
BAV199Q 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 | A1 | passive | Anode of the first diode, which is in series with the second diode; the diagram shows its cathode joined to pin 3. |
| 2 | K2 | passive | Cathode of the second diode, which is in series with the first diode; the diagram shows its anode joined to pin 3. |
| 3 | K1/A2 | passive | Common node joining the cathode of the first diode to the anode of the second diode in the series pair; each diode is rated 85 V VBR and 215 mA IFAV. |
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 |
|---|---|---|---|---|---|---|---|
| Reverse Breakdown Voltage | VBR | 85 | V | IR= 100μA | 1 | ||
| Forward Voltage | VF | 900 | mV | IF= 1mA | 1 | ||
| Forward Voltage | VF | 1000 | mV | IF= 10mA | 1 | ||
| Forward Voltage | VF | 1100 | mV | IF= 50mA | 1 | ||
| Forward Voltage | VF | 1250 | mV | IF= 150mA | 1 | ||
| Reverse Current | IR | 5 | nA | VR= 75V | 1 | ||
| Junction Capacitance | Cj | 4 | pF | VR= 0V, f= 1MHz | 1 | ||
| Reverse Recovery Time | trr | 3 | μs | IF= IR= 10mA, Irr= 0.1IR, RL= 100Ω | 1 | ||
| Reverse Breakdown Voltage | VBR | 85 | V | 1 | |||
| Average Forward Current | IFAV | 215 | mA | Single diode loaded | 1 | ||
| Non-Repetitive Peak Forward Surge Current | IFSM | 4 | A | tp=1 us | 1 | ||
| Power Dissipation | PD | 350 | mW | 1 | |||
| Maximum Junction Temperature | Tj | 150 | ℃ | 1 | |||
| Storage Temperature Range | Tstg | -55 | 150 | ℃ | 1 | ||
| Thermal Resistance Junction to Ambient | RthJA | 357 | ℃/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 | 3 | |
| contacts | tin | ● Terminals: Tin plated leads, solderable per J-STD-002 and JESD22-B102 | 1 |
CAD (KiCad official)
- Symbol:
BAV199Q - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
bav199q-etched.step/bav199q-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bav199q.step/bav199q.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Yangzhou Yangjie Elec Tech datasheet (4 pp, sha256
c88d05bd3f00912b, 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).