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NDS9945-NL-JSM
Public Made by Adomby adom
JSMSEMI 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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README
markdownNDS9945-NL-JSM
JSMSEMI · MOSFETs · SOP-8
NDS9945-NL-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 (channel rated VDS 60V, ID 4.5A). |
| 2 | G1 | input | Gate of MOSFET 1, with VGS rated ±20V. |
| 3 | S2 | passive | Source of MOSFET 2 (channel rated VDS 60V, ID 4.5A). |
| 4 | G2 | input | Gate of MOSFET 2, with VGS rated ±20V. |
| 5 | D2 | passive | Drain of MOSFET 2, tied internally with pin 6; VDS rated 60V. |
| 6 | D2 | passive | Drain of MOSFET 2, tied internally with pin 5; VDS rated 60V. |
| 7 | D1 | passive | Drain of MOSFET 1, tied internally with pin 8; VDS rated 60V. |
| 8 | D1 | passive | Drain of MOSFET 1, tied internally with pin 7; VDS rated 60V. |
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 Breakdown Voltage | BVDSS | 60 | V | VGS=0V,ID=250μA | 2 | ||
| Zero Gate Voltage Drain Current | IDSS | 1 | μA | VGS=0V, VDS=48V,TJ=25℃ | 2 | ||
| Zero Gate Voltage Drain Current | IDSS | 5 | μA | VGS=0V, VDS=48V,TJ=55℃ | 2 | ||
| Gate-Source Leakage Current | IGSS | -100 | 100 | nA | VGS=±20V, VDS=0A | 2 | |
| Gate-Source Threshold Voltage | VGS(th) | 1 | 2.5 | V | VGS=VDS, ID=250μA | 2 | |
| Drain-Source On Resistance | RDS(ON) | 30 | 36 | mΩ | VGS=10V,ID=4A | 2 | |
| Drain-Source On Resistance | RDS(ON) | 34 | 45 | mΩ | VGS=4.5V,ID=3A | 2 | |
| Source-Drain Diode Forward Voltage | VSD | 1.2 | V | VGS=0V,IS=1A,TJ=25℃ | 3 | ||
| Continuous Source Current | IS | 4.5 | A | VG=VD=0V , Force Current | 3 | ||
| Pulsed Source Current | ISM | 18 | A | 3 | |||
| Drain-Source Voltage | VDS | 60 | V | Ta=25℃ | 1 | ||
| Gate-Source Voltage | VGS | -20 | 20 | V | Ta=25℃ | 1 | |
| Continuous Drain Current | ID | 4.5 | A | TA=25℃ | 1 | ||
| Continuous Drain Current | ID | 3.5 | A | TA=70℃ | 1 | ||
| Drain Current-Pulsed | IDM | 18 | A | Ta=25℃ | 1 | ||
| Single Pulse Avalanche Energy | EAS | 22 | mJ | VDD=25V,VGS=10V,L=0.1mH,IAS=21A | 1 | ||
| Avalanche Current | IAS | 21 | A | Ta=25℃ | 1 | ||
| Power Dissipation | PD | 1.5 | W | Ta=25℃ | 1 | ||
| Operating and Storage Junction Temperature Range | TJ, TSTG | -55 | 150 | ℃ | 1 | ||
| Thermal Resistance, Junction to Ambient | RθJA | 85 | ℃/W | 1 | |||
| Thermal Resistance, Junction to Case | RθJC | 25 | ℃/W | 2 | |||
| Forward Transconductance | GFS | 28.3 | S | VDS=5V, ID=4A | 2 | ||
| Input Capacitance | Ciss | 1020 | pF | VDS=15V, VGS=0V, f=1MHz | 2 | ||
| Output Capacitance | Coss | 60 | pF | VDS=15V, VGS=0V, f=1MHz | 2 | ||
| Reverse Transfer Capacitance | Crss | 45 | pF | VDS=15V, VGS=0V, f=1MHz | 2 | ||
| Turn-On Delay Time | td(on) | 3 | ns | VDD=30V, ID=4A, RG=3.3Ω, VGS=10V | 2 | ||
| Rise Time | tr | 34 | ns | VDD=30V, ID=4A, RG=3.3Ω, VGS=10V | 2 | ||
| Turn-Off Delay Time | td(off) | 23 | ns | VDD=30V, ID=4A, RG=3.3Ω, VGS=10V | 2 | ||
| Fall Time | tf | 6 | ns | VDD=30V, ID=4A, RG=3.3Ω, VGS=10V | 2 | ||
| Total Gate Charge | Qg | 19 | nC | VGS=10V, VDS=48V, ID=4A | 2 | ||
| Gate-Source Charge | Qgs | 2.6 | nC | VGS=10V, VDS=48V, ID=4A | 2 | ||
| Gate-Drain Miller Charge | Qgd | 4.1 | nC | VGS=10V, VDS=48V, ID=4A | 3 | ||
| Gate Resistance | RG | 2.5 | Ω | VDS=0V , VGS=0V , f=1MHz | 3 | ||
| Reverse Recovery Time | Trr | 12.1 | ns | IF=4A , dI/dt=100A/µs , TJ=25℃ | 3 | ||
| Reverse Recovery Charge | Qrr | 6.7 | nC | IF=4A , dI/dt=100A/µs , TJ=25℃ | 3 |
CAD (KiCad official)
- Symbol:
NDS9945-NL-JSM - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
nds9945-nl-jsm-etched.step/nds9945-nl-jsm-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);nds9945-nl-jsm.step/nds9945-nl-jsm.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: JSMSEMI datasheet (6 pp, sha256
9580e8854fd408a6, retrieved 2026-10-26, 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).