component
BAS21_R1_00001
Public Made by Adomby adom
PANJIT International Switching Diodes, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownBAS21_R1_00001
PANJIT International · Switching Diodes · SOT-23
BAS21_R1_00001 from PANJIT International, 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 switching diode (top view, lower-left pin); BAS21 is rated for 200 V reverse voltage VR and 200 mA average rectified current IO. |
| 2 | NC | unconnected | No internal connection shown in the single-diode SOT-23 pin drawing. |
| 3 | K | passive | Cathode of the single switching diode (top pin); BAS21 peak reverse voltage VRM is 250 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | PANJIT International |
| 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 Voltage | VR | 200 | V | 1 | |||
| Peak Reverse Voltage | VRM | 250 | V | 1 | |||
| Rectified Current (Average) | IO | 200 | mA | Half wave rectification, with resistive load and f >50Hz | 1 | ||
| Peak Forward Surge Current | IFSM | 2.5 | A | tp=1s, single half sine-wave superimposed on rated load | 1 | ||
| Power Dissipation | PTOT | 350 | mW | Derate above 25 oC | 1 | ||
| Maximum Forward Voltage | VF | 1 | V | @100mA | 1 | ||
| Maximum DC Reverse Current | IR | 1 | A | TJ=25 oC, at rated DC blocking voltage | 1 | ||
| Maximum Reverse Recovery Time | TRR | 50 | nS | From IF=10mA to IR=1mA, VR=6Volts, RL=100 | 1 | ||
| Typical Junction Capacitance | CJ | 1.5 | pF | VR=0, f=1MHz | 1 | ||
| Operating Junction Temperature and Storage Temperature Range | TJ,TSTG | -55 | 150 | oC | 1 | ||
| Typical Thermal Resistance | RθJA | 357 | oC/W | Mounted on a FR-4 PCB, single-sided copper, with 100cm2 copper pad area (Note 3) | 1 |
CAD (KiCad official)
- Symbol:
BAS21_R1_00001 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
bas21-r1-00001-etched.step/bas21-r1-00001-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bas21-r1-00001.step/bas21-r1-00001.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: PANJIT International datasheet (5 pp, sha256
62a94fa2f8f9f24f, retrieved 2026-10-19, 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).