component
FDS8978
Public Made by Adomby adom
UMW MOSFETs, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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| fds8978-etched.glb | 7d ago |
| fds8978-etched.step | 7d ago |
| fds8978-hero.glb | 7d ago |
| fds8978-hero.overlay.json | 7d ago |
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| README.md | 7d ago |
FDS8978
UMW · MOSFETs · SOP-8
FDS8978 from UMW, 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 terminal of the first N-channel MOSFET; the pinning table groups pins 1 and 3 as SOURCE, and the rated drain-source voltage is 30V. |
| 2 | G1 | input | GATE terminal of the first MOSFET; gate-source voltage is rated at ±20V. |
| 3 | S2 | passive | SOURCE terminal of the second N-channel MOSFET; the pinning table groups pins 1 and 3 as SOURCE, and the rated drain-source voltage is 30V. |
| 4 | G2 | input | GATE terminal of the second MOSFET; gate-source voltage is rated at ±20V. |
| 5 | D2 | passive | DRAIN terminal of the second MOSFET; the pinning table groups pins 5 to 8 as DRAIN, with continuous drain current rated at 7.5A (TA=25°C, VGS=10V). |
| 6 | D2 | passive | DRAIN terminal of the second MOSFET; the pinning table groups pins 5 to 8 as DRAIN, with continuous drain current rated at 7.5A (TA=25°C, VGS=10V). |
| 7 | D1 | passive | DRAIN terminal of the first MOSFET; the pinning table groups pins 5 to 8 as DRAIN, with continuous drain current rated at 7.5A (TA=25°C, VGS=10V). |
| 8 | D1 | passive | DRAIN terminal of the first MOSFET; the pinning table groups pins 5 to 8 as DRAIN, with continuous drain current rated at 7.5A (TA=25°C, VGS=10V). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| 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 | VGS | -20 | 20 | V | Printed as ±20 | 1 | |
| Drain Current Continuous | ID | 7.5 | A | TA=25°C, VGS=10V, RθJA=50°C/W | 1 | ||
| Drain Current Continuous | ID | 6.9 | A | TA=25°C, VGS=4.5V, RθJA=50°C/W | 1 | ||
| Drain Current Pulsed | 49 | A | 1 | ||||
| Single Pulse Avalanche Energy | EAS | 57 | mJ | Note 1: TJ=25°C, L=1mH, IAS=7.5A, VDD=30V, VGS=10V | 1 | ||
| Power Dissipation | PD | 1.6 | W | 1 | |||
| Power Dissipation Derate above 25°C | 13 | mW/°C | Above 25°C | 1 | |||
| Operating Junction and Storage Temperature | TJ,TSTG | -55 | 150 | °C | 1 | ||
| Thermal Resistance, Junction to Case | RθJC | 40 | °C/W | Note 2 (printed as a single rating value) | 2 | ||
| Thermal Resistance, Junction to Ambient | RθJA | 78 | °C/W | Note 2a: 0.5 in² pad of 2 oz copper | 2 | ||
| Thermal Resistance, Junction to Ambient | RθJA | 135 | °C/W | Note 2b: 0.02 in² pad of 2 oz copper | 2 | ||
| Drain-Source Breakdown Voltage | BVDSS | 30 | V | ID=250µA, VGS=0V | 3 | ||
| Zero Gate Voltage Drain Current | IDSS | 1 | µA | VDS=24V, VGS=0V | 3 | ||
| Zero Gate Voltage Drain Current (TJ=150°C) | IDSS | 250 | µA | VDS=24V, VGS=0V, TJ=150°C | 3 | ||
| Gate to Source Leakage Current | IGSS | -100 | 100 | nA | VGS=±20V | 3 | |
| Gate to Source Threshold Voltage | VGS(th) | 1.2 | 2.5 | V | VDS=VGS, ID=250µA | 3 | |
| Drain to Source On Resistance | RDS(ON) | 14 | 18 | mΩ | ID=7.5A, VGS=10V | 3 | |
| Drain to Source On Resistance | RDS(ON) | 17 | 21 | mΩ | ID=6.9A, VGS=4.5V | 3 | |
| Drain to Source On Resistance | RDS(ON) | 22 | 29 | mΩ | ID=7.5A, VGS=10V, TC=150°C | 3 | |
| Input Capacitance | Ciss | 907 | 1270 | pF | VDS=15V, VGS=0V, f=1MHz | 3 | |
| Total Gate Charge at 10V | Qg(TOT) | 17 | 26 | nC | VGS=0V to 10V, VDD=15V, ID=7.5A | 3 | |
| Total Gate Charge at 5V | Qg(5) | 9 | 14 | nC | VGS=0V to 5V, VDD=15V, ID=7.5A | 3 | |
| Turn-On Time | ton | 44 | 66 | ns | VDD=15V, ID=7.5A, VGS=10V, RGS=16Ω | 3 | |
| Turn-On Delay Time | tD(on) | 7 | 10.5 | ns | VDD=15V, ID=7.5A, VGS=10V, RGS=16Ω | 3 | |
| Rise Time | tr | 37 | 55.5 | ns | VDD=15V, ID=7.5A, VGS=10V, RGS=16Ω | 3 | |
| Turn-Off Delay Time | tD(off) | 48 | 72 | ns | VDD=15V, ID=7.5A, VGS=10V, RGS=16Ω | 3 | |
| Fall Time | tf | 24 | 36 | ns | VDD=15V, ID=7.5A, VGS=10V, RGS=16Ω | 3 | |
| Turn-Off Time | toff | 72 | 108 | ns | VDD=15V, ID=7.5A, VGS=10V, RGS=16Ω | 3 | |
| Source to Drain Diode Voltage | VSD | 1.25 | V | ISD=7.5A | 4 | ||
| Source to Drain Diode Voltage | VSD | 1 | V | ISD=2.1A | 4 |
CAD (KiCad official)
- Symbol:
FDS8978 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
fds8978-etched.step/fds8978-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);fds8978.step/fds8978.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UMW datasheet (10 pp, sha256
b1a4171a2a096127, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-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).