component
PJA138K-AU_R1_000A1
Public Made by Adomby adom
PANJIT International MOSFETs, 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
markdownPJA138K-AU_R1_000A1
PANJIT International · MOSFETs · SOT-23
PJA138K-AU_R1_000A1 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 | G | input | Gate; ESD protected to 2KV HBM, with a gate-source voltage limit of ±20 V and a threshold of 0.8 to 1.5 V at ID=250uA. |
| 2 | S | passive | Source; the continuous source-drain diode current is limited to 500 mA. |
| 3 | D | passive | Drain; rated for 50 V drain-source voltage, 500 mA continuous and 1200 mA pulsed drain current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | PANJIT International |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| 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 |
|---|---|---|---|---|---|---|---|
| Drain-Source Voltage | VDS | 50 | V | 1 | |||
| Gate-Source Voltage | VGS | 20 | V | 1 | |||
| Continuous Drain Current | ID | 500 | mA | 1 | |||
| Pulsed Drain Current | IDM | 1200 | mA | 1 | |||
| Power Dissipation | PD | 500 | mW | TA=25oC | 1 | ||
| Operating Junction and Storage Temperature Range | TJ,TSTG | -55 | 150 | oC | 1 | ||
| Drain-Source Breakdown Voltage | BVDSS | 50 | V | VGS=0V,ID=250uA | 2 | ||
| Gate Threshold Voltage | VGS(th) | 0.8 | 1 | 1.5 | V | VDS=VGS, ID=250uA | 2 |
| Drain-Source On-State Resistance | RDS(on) | 0.96 | 1.6 | Ω | VGS=10V,ID=500mA | 2 | |
| Drain-Source On-State Resistance | RDS(on) | 1.25 | 2.5 | Ω | VGS=4.5V,ID=200mA | 2 | |
| Drain-Source On-State Resistance | RDS(on) | 2.73 | 4.5 | Ω | VGS=2.5V,ID=100mA | 2 | |
| Zero Gate Voltage Drain Current | IDSS | 0.01 | 1 | uA | VDS=50V,VGS=0V | 2 | |
| Gate-Source Leakage Current | IGSS | 3 | 10 | uA | VGS=+20V,VDS=0V | 2 | |
| Total Gate Charge | Qg | 0.63 | 1 | nC | VDS=25V, ID=250mA, VGS=4.5V (Note 1,2) | 2 | |
| Input Capacitance | Ciss | 25 | 50 | pF | VDS=25V, VGS=0V, f=1.0MHZ | 2 | |
| Output Capacitance | Coss | 9.5 | 20 | pF | VDS=25V, VGS=0V, f=1.0MHZ | 2 | |
| Reverse Transfer Capacitance | Crss | 2.1 | 5 | pF | VDS=25V, VGS=0V, f=1.0MHZ | 2 | |
| Turn-On Delay Time | td(on) | 2.2 | 5 | ns | VDD=25V, ID=500mA, VGS=10V, RG=6Ω (Note 1,2) | 2 | |
| Turn-On Rise Time | tr | 19.2 | 38 | ns | VDD=25V, ID=500mA, VGS=10V, RG=6Ω (Note 1,2) | 2 | |
| Turn-Off Delay Time | td(off) | 6.2 | 12 | ns | VDD=25V, ID=500mA, VGS=10V, RG=6Ω (Note 1,2) | 2 | |
| Turn-Off Fall Time | tf | 23 | 50 | ns | VDD=25V, ID=500mA, VGS=10V, RG=6Ω (Note 1,2) | 2 | |
| Maximum Continuous Drain-Source Diode Forward Current | IS | 500 | mA | 2 | |||
| Diode Forward Voltage | VSD | 0.86 | 1.5 | V | IS=500mA, VGS=0V | 2 | |
| Typical Thermal Resistance, Junction to Ambient | RθJA | 250 | oC/W | Junction to Ambient (Note 3) | 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 |
|---|---|---|---|---|
| contacts | copper | defined as the solder mounting surface of the drain pins. mounted on a 1 inch square pad of copper | 2 |
CAD (KiCad official)
- Symbol:
PJA138K-AU_R1_000A1 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
pja138k-au-r1-000a1-etched.step/pja138k-au-r1-000a1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pja138k-au-r1-000a1.step/pja138k-au-r1-000a1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: PANJIT International datasheet (6 pp, sha256
1a71bf5662d4162d, retrieved 2026-10-17, 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).