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Contents

README

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BAS70-04W

Nexperia · Schottky Barrier Diodes (SBD) · SOT-323-3

BAS70-04W from Nexperia, in a SOT-323-3. 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 A1 passive Anode of diode 1; diodes are rated for VR up to 70 V and IF up to 70 mA.
2 K2 passive Cathode of diode 2; diodes are rated for VR up to 70 V and IF up to 70 mA.
3 K1; A2 passive Common node joining cathode of diode 1 and anode of diode 2 (series configuration); rated VR up to 70 V and IF up to 70 mA per diode.

Key specifications

Parameter Value
Manufacturer Nexperia
Package SOT-323-3
Category Diodes
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
Forward voltage VF 410 mV IF = 1 mA; tp ≤ 300 µs; δ ≤ 0.02; pulsed; Tamb = 25 °C 3
Forward voltage VF 750 mV IF = 10 mA; tp ≤ 300 µs; δ ≤ 0.02; pulsed; Tamb = 25 °C 3
Forward voltage VF 1 V IF = 15 mA; tp ≤ 300 µs; δ ≤ 0.02; pulsed; Tamb = 25 °C 3
Reverse current IR 100 nA VR = 50 V; Tamb = 25 °C 3
Reverse current IR 10 µA VR = 70 V; Tamb = 25 °C 3
Diode capacitance Cd 2 pF VR = 0 V; f = 1 MHz; Tamb = 25 °C 3
Reverse voltage VR 70 V Tj = 25 °C 2
Forward current IF 70 mA 2
Repetitive peak forward current IFRM 70 mA tp ≤ 1 s; δ ≤ 0.5 2
Non-repetitive peak forward current IFSM 100 mA tp ≤ 10 ms; Tj(init) = 25 °C 2
Junction temperature Tj 150 °C 2
Ambient temperature Tamb -65 150 °C 2
Storage temperature Tstg -65 150 °C 2
Thermal resistance from junction to ambient Rth(j-a) 500 K/W in free air; device mounted on FR4 PCB, single-sided copper, tin-plated, standard footprint 2

CAD (KiCad official)

  • Symbol: BAS70-04W
  • Footprint: Package_TO_SOT_SMD:SOT-323_SC-70
  • 3D model: SOT-323-3 (KiCad packages3D, STEP)
  • 3D model files: bas70-04w-etched.step / bas70-04w-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bas70-04w.step / bas70-04w.glb are the bare package body.

Provenance

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

  • Datasheet: Nexperia datasheet (8 pp, sha256 55066e3fc1dacd6d, retrieved 2026-10-22, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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