component

DF3A6.8FUT1G

Public Made by Adom

by adom

onsemi TVS, SC-70. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentcircuit protectiondf3a6.8fut1gfactory-2.0.0extractor-text
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DF3A6.8FUT1G

onsemi · TVS · SC-70

DF3A6.8FUT1G from onsemi, in a SC-70. 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 CATHODE passive Cathode of one unidirectional zener junction, used with pin 3 as the common anode to clamp a line to a breakdown voltage of 6.4 to 7.2 V at 5.0 mA.
2 CATHODE passive Cathode of the second unidirectional zener junction, used with pin 3 as the common anode to protect a separate line with the same 6.4 to 7.2 V breakdown at 5.0 mA.
3 ANODE passive Common anode shared by both zener junctions, so one package protects two separate lines (circuit tied to pins 1 and 3 or 2 and 3).

Key specifications

Parameter Value
Manufacturer onsemi
Package SC-70
Category Circuit Protection
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
Zener Voltage VZ 6.4 6.8 7.2 V IZT = 5 mA 2
Steady State Power Dissipation PD 200 mW Mounted on FR-5 board (Note 1) 1
Peak Power Dissipation @ 1.0 ms PPK 20 W @ TA = 25°C (Note 2) 1
Peak Power Dissipation @ 20 s PPK 150 W @ TA = 25°C (Note 3) 1
Operating Junction and Storage Temperature Range TJ, Tstg -55 150 °C 1
ESD Discharge MIL STD 883C Method 3015-6 VPP 16 kV MIL STD 883C - Method 3015-6 1
ESD Discharge IEC61000-4-2 Air Discharge VPP 30 kV IEC61000-4-2, Air Discharge 1
ESD Discharge IEC61000-4-2 Contact Discharge VPP 30 kV IEC61000-4-2, Contact Discharge 1
Thermal Resistance Junction-to-Ambient RθJA 618 °C/W 1
Forward Voltage VF 0.8 0.9 V IF = 10 mA 2
Operating Resistance ZZK ZZK 200 IZK = 0.5 mA 2
Operating Resistance ZZT ZZT 50 IZT = 5 mA 2
Reverse Current IR1 0.5 A VRWM = 5 V 2
Clamping Voltage VC 9.6 V IPP = 2.0 A (Figure 1) 2
Clamping Voltage VC 16 V IPP = 9.37 A (Figure 2) 2

CAD (KiCad official)

  • Symbol: DF3A6.8FUT1G
  • Footprint: Package_TO_SOT_SMD:SOT-323_SC-70
  • 3D model: SC-70 (KiCad packages3D, STEP)
  • 3D model files: df3a6-8fut1g-etched.step / df3a6-8fut1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); df3a6-8fut1g.step / df3a6-8fut1g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (5 pp, sha256 d50b722738c92073, retrieved 2026-10-27, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus off (skipped (clean text read)), 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