component
AO4818-JSM
Public Made by Adomby adom
JSMSEMI MOSFETs, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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AO4818-JSM
JSMSEMI · MOSFETs · SOP-8
AO4818-JSM from JSMSEMI, 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 | S1 | passive | Source of MOSFET 1 (N-channel, 30V VDSS, 8A continuous drain current rating). |
| 2 | G1 | input | Gate of MOSFET 1; gate-source voltage limited to ±20V. |
| 3 | S2 | passive | Source of MOSFET 2 (N-channel, 30V VDSS, 8A continuous drain current rating). |
| 4 | G2 | input | Gate of MOSFET 2; gate-source voltage limited to ±20V. |
| 5 | D2 | passive | Drain of MOSFET 2, internally tied to pin 6; 30V maximum drain-source voltage. |
| 6 | D2 | passive | Drain of MOSFET 2, internally tied to pin 5; 30V maximum drain-source voltage. |
| 7 | D1 | passive | Drain of MOSFET 1, internally tied to pin 8; 30V maximum drain-source voltage. |
| 8 | D1 | passive | Drain of MOSFET 1, internally tied to pin 7; 30V maximum drain-source voltage. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | JSMSEMI |
| Package | SOP-8 |
| Category | Transistors/Thyristors |
| 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 Voltage | VDSS | 30 | V | 1 | |||
| Gate-Source Voltage | VGSS | -20 | 20 | V | 1 | ||
| Continuous Drain Current | ID | 8 | A | TA=25°C, VGS=10V | 1 | ||
| Continuous Drain Current | ID | 6.5 | A | TA=70°C, VGS=10V | 1 | ||
| Pulsed Drain Current | IDM | 40 | A | 300ms pulse, VGS=10V | 1 | ||
| Diode Continuous Forward Current | IS | 1 | A | 1 | |||
| Avalanche Current (Single Pulse) | IAS | 9 | A | 1 | |||
| Avalanche Energy, Single Pulse | EAS | 20 | mJ | L=0.5mH | 1 | ||
| Maximum Junction Temperature | TJ | 150 | °C | 1 | |||
| Storage Temperature Range | TSTG | -55 | 150 | °C | 1 | ||
| Maximum Power Dissipation | PD | 1.7 | W | TA=25°C | 1 | ||
| Maximum Power Dissipation | PD | 1.08 | W | TA=70°C | 1 | ||
| Thermal Resistance-Junction to Ambient | RθJA | 48 | °C/W | t≤10s | 1 | ||
| Thermal Resistance-Junction to Ambient | RθJA | 74 | °C/W | Steady State | 1 | ||
| Thermal Resistance-Junction to Lead | RθJL | 3 | °C/W | Steady State | 1 | ||
| Drain-Source Breakdown Voltage | BVDSS | 30 | V | VGS=0V, IDS=250mA | 2 | ||
| Zero Gate Voltage Drain Current | IDSS | 1 | µA | VDS=24V, VGS=0V | 2 | ||
| Gate Leakage Current | IGSS | -100 | 100 | nA | VGS=±20V, VDS=0 | 2 | |
| Gate Threshold Voltage | VGS(th) | 1 | 1.9 | V | VDS=VGS, IDS=250mA | 2 | |
| Drain-Source On-state Resistance | RDS(ON) | 17 | mW | VGS=10V, IDS=8A | 1 | ||
| Drain-Source On-state Resistance | RDS(ON) | 24 | mW | VGS=4.5V, IDS=7A | 1 | ||
| Diode Forward Voltage | VSD | 0.7 | 1.1 | V | ISD=1A, VGS=0V | 2 | |
| Reverse Recovery Time | trr | 15.5 | ns | ISD=8A, dISD/dt=100A/ms | 2 | ||
| Reverse Recovery Charge | Qrr | 6.5 | nC | ISD=8A, dISD/dt=100A/ms | 2 |
CAD (KiCad official)
- Symbol:
AO4818-JSM - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
ao4818-jsm-etched.step/ao4818-jsm-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ao4818-jsm.step/ao4818-jsm.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: JSMSEMI datasheet (8 pp, sha256
f73d37fc7de90fe2, retrieved 2026-11-04, 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).
# AO4818-JSM
**JSMSEMI** · MOSFETs · SOP-8
AO4818-JSM from JSMSEMI, 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 | S1 | passive | Source of MOSFET 1 (N-channel, 30V VDSS, 8A continuous drain current rating). |
| 2 | G1 | input | Gate of MOSFET 1; gate-source voltage limited to ±20V. |
| 3 | S2 | passive | Source of MOSFET 2 (N-channel, 30V VDSS, 8A continuous drain current rating). |
| 4 | G2 | input | Gate of MOSFET 2; gate-source voltage limited to ±20V. |
| 5 | D2 | passive | Drain of MOSFET 2, internally tied to pin 6; 30V maximum drain-source voltage. |
| 6 | D2 | passive | Drain of MOSFET 2, internally tied to pin 5; 30V maximum drain-source voltage. |
| 7 | D1 | passive | Drain of MOSFET 1, internally tied to pin 8; 30V maximum drain-source voltage. |
| 8 | D1 | passive | Drain of MOSFET 1, internally tied to pin 7; 30V maximum drain-source voltage. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | JSMSEMI |
| Package | SOP-8 |
| Category | Transistors/Thyristors |
| 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 Voltage | VDSS | | | 30 | V | | 1 |
| Gate-Source Voltage | VGSS | -20 | | 20 | V | | 1 |
| Continuous Drain Current | ID | | | 8 | A | TA=25°C, VGS=10V | 1 |
| Continuous Drain Current | ID | | | 6.5 | A | TA=70°C, VGS=10V | 1 |
| Pulsed Drain Current | IDM | | | 40 | A | 300ms pulse, VGS=10V | 1 |
| Diode Continuous Forward Current | IS | | | 1 | A | | 1 |
| Avalanche Current (Single Pulse) | IAS | | | 9 | A | | 1 |
| Avalanche Energy, Single Pulse | EAS | | | 20 | mJ | L=0.5mH | 1 |
| Maximum Junction Temperature | TJ | | | 150 | °C | | 1 |
| Storage Temperature Range | TSTG | -55 | | 150 | °C | | 1 |
| Maximum Power Dissipation | PD | | | 1.7 | W | TA=25°C | 1 |
| Maximum Power Dissipation | PD | | | 1.08 | W | TA=70°C | 1 |
| Thermal Resistance-Junction to Ambient | RθJA | | | 48 | °C/W | t≤10s | 1 |
| Thermal Resistance-Junction to Ambient | RθJA | | | 74 | °C/W | Steady State | 1 |
| Thermal Resistance-Junction to Lead | RθJL | | | 3 | °C/W | Steady State | 1 |
| Drain-Source Breakdown Voltage | BVDSS | 30 | | | V | VGS=0V, IDS=250mA | 2 |
| Zero Gate Voltage Drain Current | IDSS | | | 1 | µA | VDS=24V, VGS=0V | 2 |
| Gate Leakage Current | IGSS | -100 | | 100 | nA | VGS=±20V, VDS=0 | 2 |
| Gate Threshold Voltage | VGS(th) | 1 | 1.9 | | V | VDS=VGS, IDS=250mA | 2 |
| Drain-Source On-state Resistance | RDS(ON) | | | 17 | mW | VGS=10V, IDS=8A | 1 |
| Drain-Source On-state Resistance | RDS(ON) | | | 24 | mW | VGS=4.5V, IDS=7A | 1 |
| Diode Forward Voltage | VSD | | 0.7 | 1.1 | V | ISD=1A, VGS=0V | 2 |
| Reverse Recovery Time | trr | | 15.5 | | ns | ISD=8A, dISD/dt=100A/ms | 2 |
| Reverse Recovery Charge | Qrr | | 6.5 | | nC | ISD=8A, dISD/dt=100A/ms | 2 |
## CAD (KiCad official)
- Symbol: `AO4818-JSM`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `ao4818-jsm-etched.step` / `ao4818-jsm-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ao4818-jsm.step` / `ao4818-jsm.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [JSMSEMI datasheet](docs/ao4818-jsm-datasheet.pdf) (8 pp, sha256 `f73d37fc7de90fe2`, retrieved 2026-11-04, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-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).
[Datasheet PDF](docs/ao4818-jsm-datasheet.pdf)