component
YJS12N03A
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Yangzhou Yangjie Elec Tech MOSFETs, SOP-8. 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
markdownYJS12N03A
Yangzhou Yangjie Elec Tech · MOSFETs · SOP-8
YJS12N03A from Yangzhou Yangjie Elec Tech, in a SOP-8. 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 | S | passive | Source of the N-channel MOSFET, tied to the other source pins 2 and 3; body diode anode, with continuous body-diode current IS of 12A. |
| 2 | S | passive | Source of the N-channel MOSFET, tied to the other source pins 1 and 3; VDS is rated at 30V maximum. |
| 3 | S | passive | Source of the N-channel MOSFET, tied to the other source pins 1 and 2; drain current is rated at 12A at TA=25℃. |
| 4 | G | input | Gate of the N-channel MOSFET with a gate-source voltage limit of ±20V and a threshold of 1V to 2.5V at ID=250μA. |
| 5 | D | passive | Drain of the MOSFET, tied to drain pins 6, 7 and 8; VDS is rated at 30V and pulsed drain current IDM at 50A. |
| 6 | D | passive | Drain of the MOSFET, tied to drain pins 5, 7 and 8; RDS(ON) is below 12mΩ at VGS=10V. |
| 7 | D | passive | Drain of the MOSFET, tied to drain pins 5, 6 and 8; RDS(ON) is below 15mΩ at VGS=4.5V. |
| 8 | D | passive | Drain of the MOSFET, tied to drain pins 5, 6 and 7; the drain pins are the thermal reference for RθJA of 50℃/W. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Yangzhou Yangjie Elec Tech |
| Package | SOP-8 |
| Category | Transistors |
| Pins | 8 |
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 Breakdown Voltage | BVDSS | 30 | V | VGS= 0V, ID=250μA | 2 | ||
| Zero Gate Voltage Drain Current | IDSS | 1 | μA | VDS=30V,VGS=0V | 2 | ||
| Gate-Body Leakage Current | IGSS | -100 | 100 | nA | VGS= ±20V, VDS=0V | 2 | |
| Gate Threshold Voltage | VGS(th) | 1 | 1.5 | 2.5 | V | VDS= VGS, ID=250μA | 2 |
| Static Drain-Source On-Resistance | RDS(ON) | 7 | 12 | mΩ | VGS=10V, ID=12A | 2 | |
| Static Drain-Source On-Resistance | RDS(ON) | 11 | 15 | mΩ | VGS= 4.5V, ID=8.0A | 2 | |
| Diode Forward Voltage | VSD | 0.85 | 1.2 | V | IS=12A,VGS=0V | 2 | |
| Maximum Body-Diode Continuous Current | IS | 12 | A | 2 | |||
| Drain-source Voltage | VDS | 30 | V | 1 | |||
| Gate-source Voltage | VGS | -20 | 20 | V | 1 | ||
| Drain Current | ID | 12 | A | TA=25℃ | 1 | ||
| Drain Current | ID | 9.6 | A | TA=70℃ | 1 | ||
| Pulsed Drain Current | IDM | 50 | A | Pulse width ≤300us, duty cycle ≤2% (note A) | 1 | ||
| Total Power Dissipation | PD | 2.5 | W | TA=25℃ | 1 | ||
| Thermal Resistance Junction-to-Ambient | RθJA | 50 | ℃/W | Mounted on 1 in² pad of 2oz copper (note B) | 1 | ||
| Junction and Storage Temperature Range | TJ ,TSTG | -55 | 150 | ℃ | 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 | mounting surface of the drain pins. RθJL is guaranteed by design, while RθJA is determined by the board design. The maximum rating presented here is based on mounting on a 1 in 2 pad of 2oz copper. | 2 |
CAD (KiCad official)
- Symbol:
YJS12N03A - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
yjs12n03a-etched.step/yjs12n03a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);yjs12n03a.step/yjs12n03a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Yangzhou Yangjie Elec Tech datasheet (7 pp, sha256
c747b6b95b44ee76, retrieved 2026-10-21, 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).