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FDD8770-VB

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VBsemi Elec MOSFETs, TO-252. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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FDD8770-VB

VBsemi Elec · MOSFETs · TO-252

FDD8770-VB from VBsemi Elec, 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 of the N-channel MOSFET, rated for a gate-source voltage VGS of 15 V in the absolute maximum ratings.
2 D passive Drain, connected to the tab, with a drain-source voltage limit VDS of 20 V and a continuous drain current ID of 100 A at TC = 25°C (package limited).
3 S passive Source of the N-channel MOSFET, with a continuous source (diode conduction) current IS of 65 A.

Key specifications

Parameter Value
Manufacturer VBsemi Elec
Package TO-252
Category Triode/MOS Tube/Transistor
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
Drain-Source Voltage VDS 20 V 1
Gate-Source Voltage VGS 15 V 1
Continuous Drain Current ID 100 A TC = 25C 1
Continuous Drain Current ID 80 A TC = 100C 1
Pulsed Drain Current IDM 200 A 1
Continuous Source Current (Diode Conduction) IS 65 A 1
Maximum Power Dissipation PD 71 W TC = 25C 1
Maximum Power Dissipation PD 8.3 W TA = 25C; notes b, c 1
Operating Junction and Storage Temperature Range TJ, Tstg -55 175 °C 1
Maximum Junction-to-Ambient (t ≤ 10 sec) RthJA 15 18 °C/W t ≤ 10 sec; surface mounted on 1in x 1in FR4 board 1
Maximum Junction-to-Ambient (Steady State) RthJA 40 50 °C/W Steady state; surface mounted on 1in x 1in FR4 board 1
Maximum Junction-to-Case RthJC 1.75 2.1 °C/W 1
Drain-Source Breakdown Voltage V(BR)DSS 20 V VGS = 0 V, ID = 250 µA 2
Gate Threshold Voltage VGS(th) 0.5 V VDS = VGS, ID = 250 µA 2
Gate-Body Leakage IGSS 100 nA VDS = 0 V, VGS = 12 V 2
Zero Gate Voltage Drain Current IDSS 1 µA VDS = 20 V, VGS = 0 V 2
Zero Gate Voltage Drain Current (TJ = 125C) IDSS 50 µA VDS = 20 V, VGS = 0 V, TJ = 125C 2
On-State Drain Current ID(on) 100 A VDS = 5 V, VGS = 4.5 V 2
Drain-Source On-State Resistance rDS(on) 0.0045 Ω VGS = 4.5 V, ID = 20 A 2
Drain-Source On-State Resistance (TJ = 125C) rDS(on) 0.0055 Ω VGS = 4.5 V, ID = 20 A, TJ = 125C 2
Drain-Source On-State Resistance rDS(on) 0.006 Ω VGS = 2.5 V, ID = 20 A 2
Forward Transconductance gfs 20 S VDS = 5 V, ID = 40 A 2
Total Gate Charge Qg 26 35 nC VDS = 10 V, VGS = 4.5 V, ID = 40 A 2
Gate Resistance Rg 1 3.7 Ω 2
Turn-On Delay Time td(on) 20 35 ns VDD = 10 V, RL = 0.25 Ω 2
Rise Time tr 120 190 ns VDD = 10 V, RL = 0.25 Ω 2
Turn-Off Delay Time td(off) 45 70 ns VDD = 10 V, RL = 0.25 Ω, ID ≈ 40 A, VGEN = 4.5 V, RG = 2.5 Ω 2
Fall Time tf 20 35 ns VDD = 10 V, RL = 0.25 Ω, ID ≈ 40 A, VGEN = 4.5 V, RG = 2.5 Ω 2
Pulsed Current ISM 100 A 2
Diode Forward Voltage VSD 1.2 1.5 V IF = 100 A, VGS = 0 V 2
Source-Drain Reverse Recovery Time trr 35 70 ns IF = 40 A, di/dt = 100 A/µs 2
Input Capacitance Ciss 3660 pF VGS = 0 V, VDS = 20 V, f = 1 MHz 2
Output Capacitance Coss 730 pF VGS = 0 V, VDS = 20 V, f = 1 MHz 2
Reverse Transfer Capacitance Crss 375 pF VGS = 0 V, VDS = 20 V, f = 1 MHz 2
Gate-Source Charge Qgs 5 nC VDS = 10 V, VGS = 4.5 V, ID = 40 A 2
Gate-Drain Charge Qgd 7 nC VDS = 10 V, VGS = 4.5 V, ID = 40 A 2

CAD (KiCad official)

  • Symbol: FDD8770-VB
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252 (KiCad packages3D, STEP)
  • 3D model files: fdd8770-vb-etched.step / fdd8770-vb-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); fdd8770-vb.step / fdd8770-vb.glb are the bare package body.

Provenance

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

  • Datasheet: VBsemi Elec datasheet (6 pp, sha256 a008c27d14bfee02, retrieved 2026-10-28, 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