Loads when you scroll to it. Unloads after 5 minutes in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

PCB Footprint

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Loads when you scroll to it. Unloads after 5 minutes in the background.
Download PDF
Contents

README

markdown

FDD8870

UMW · MOSFETs · TO-252

FDD8870 from UMW, in a TO-252. 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: gate-to-source voltage is rated at VGS = ±20 V in the absolute maximum ratings.
2 D passive DRAIN: drain-to-source voltage is rated at VDSS = 30 V in the absolute maximum ratings.
3 S passive SOURCE: the datasheet states no pin-specific electrical limit for this terminal.

Key specifications

Parameter Value
Manufacturer UMW
Package TO-252
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
Gate to Source Threshold Voltage VGS(th) 1.7 2.5 V VDS=VGS, ID=250µA 3
Drain to Source On Resistance RDS(ON) 3.2 3.9 mΩ ID=35A, VGS=10V 3
Drain to Source On Resistance RDS(ON) 3.6 4.4 mΩ ID=35A, VGS=4.5V 3
Gate to Source Leakage Current IGSS -100 100 nA VGS=±20V 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
Drain to Source Breakdown Voltage BVDSS 30 V ID=250µA, VGS=0V 3
Source to Drain Diode Forward Voltage VSD 1.25 V ISD=35A 4
Source to Drain Diode Forward Voltage VSD 1 V ISD=15A 4
Drain to Source Voltage VDSS 30 V 1
Gate to Source Voltage VGS -20 20 V 1
Drain Current Continuous ID 160 A TC=25°C, VGS=10V (Note 1) 1
Drain Current Continuous ID 150 A TC=25°C, VGS=4.5V (Note 1) 1
Drain Current Continuous (Tamb) ID 21 A Tamb=25°C, VGS=10V, with RθJA=52°C/W 1
Single Pulse Avalanche Energy EAS 690 mJ 1
Power Dissipation PD 160 W 1
Derate above 25°C 1.07 °C/W Derate above 25°C 1
Storage and Junction Temperature Range TJ, TSTG -55 175 °C 1
Thermal Resistance, Junction-to-Case RθJC 0.94 °C/W TO-252, TO-251 2
Thermal Resistance, Junction-to-Ambient RθJA 100 °C/W TO-252, TO-251 2
Thermal Resistance, Junction-to-Ambient (1 in² copper pad) RθJA 52 °C/W TO-252, 1 in² copper pad area 2

CAD (KiCad official)

  • Symbol: FDD8870
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252 (KiCad packages3D, STEP)
  • 3D model files: fdd8870-etched.step / fdd8870-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); fdd8870.step / fdd8870.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: UMW datasheet (13 pp, sha256 2264fa240cc67161, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF