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DF2B7AFS

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TOSHIBA ESD Protection Devices, SOD-923. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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DF2B7AFS

TOSHIBA · ESD Protection Devices · SOD-923

DF2B7AFS from TOSHIBA, in a SOD-923. 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 Pin 1 bidirectional Signal/I/O pin of the ESD protection diode, with Pin 2 connected to GND when Pin 1 is used for I/O; working peak reverse voltage VRWM is at most 5.5 V.
2 Pin 2 bidirectional Second protection pin of the ESD diode, to be connected to GND when Pin 1 is used for I/O (and Pin 1 connected to GND when Pin 2 is used for I/O); working peak reverse voltage VRWM is at most 5.5 V.

Key specifications

Parameter Value
Manufacturer TOSHIBA
Package SOD-923
Category Circuit Protection
Pins 2

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Working peak reverse voltage VRWM 5.5 V 4
Total capacitance Ct 8.5 10 pF VR = 0 V, f = 1 MHz 4
Dynamic resistance RDYN 0.2 Ω TLP: Z0 = 50 Ω, tp = 100 ns, tr = 300 ps, IPP1 = 8 A to IPP2 = 16 A (Note 2) 4
Reverse current IR 100 nA VRWM = 5.5 V 4
Electrostatic discharge voltage (IEC61000-4-2) (Contact) VESD -30 30 kV IEC61000-4-2 contact (Note 1) 4
Electrostatic discharge voltage (IEC61000-4-2) (Air) VESD -30 30 kV IEC61000-4-2 air (Note 1) 4
Peak pulse current IPP 4 A tp = 8/20 µs (Note 2) 4
Junction temperature Tj 150 °C 4
Storage temperature Tstg -55 150 °C 4

CAD (KiCad official)

  • Symbol: DF2B7AFS
  • Footprint: Diode_SMD:D_SOD-923
  • 3D model: SOD-923 (KiCad packages3D, STEP)
  • 3D model files: df2b7afs-etched.step / df2b7afs-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); df2b7afs.step / df2b7afs.glb are the bare package body.

Provenance

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

  • Datasheet: TOSHIBA datasheet (8 pp, sha256 ed099de969fef827, retrieved 2026-10-21, tier: manufacturer)
  • 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