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π140E31S

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2Pai Semi Digital Isolators, SSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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π140E31S

2Pai Semi · Digital Isolators · SSOP-16

π140E31S from 2Pai Semi, in a SSOP-16. 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 VDD1 power_in Supply voltage for isolator side 1, specified at 3 V to 5.5 V in the recommended operating conditions.
2 GND1 power_in Ground 1, the ground reference for isolator side 1.
3 VIA input Logic input A on side 1; a low input drives VOA low, and an open input gives the default output state set by the fail-safe option.
4 VIB input Logic input B on side 1; a low input drives VOB low, and an open input gives the default output state set by the fail-safe option.
5 VIC input Logic input C on side 1; a low input drives VOC low, and an open input gives the default output state set by the fail-safe option.
6 VID input Logic input D on side 1; a low input drives VOD low, and an open input gives the default output state set by the fail-safe option.
7 NC unconnected No connect.
8 GND1 power_in Ground 1, the ground reference for isolator side 1.
9 GND2 power_in Ground 2, the ground reference for isolator side 2.
10 NC unconnected No connect for π140E3X; this pin is EN2 (output enable, outputs enabled when high or open) only on the π140E6X variant.
11 VOD output Logic output D on side 2, following input VID after the isolation barrier.
12 VOC output Logic output C on side 2, following input VIC after the isolation barrier.
13 VOB output Logic output B on side 2, following input VIB after the isolation barrier.
14 VOA output Logic output A on side 2, following input VIA after the isolation barrier.
15 GND2 power_in Ground 2, the ground reference for isolator side 2.
16 VDD2 power_in Supply voltage for isolator side 2, specified at 3 V to 5.5 V in the recommended operating conditions.

Key specifications

Parameter Value
Manufacturer 2Pai Semi
Package SSOP-16
Category Signal Isolation Devices
Pins 16

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
housing pC In accordance with DIN V VDE V 0884-11, each π140E3x/π141E3x/π142E3x is proof tested by applying an insulation test voltage ≥ 848 V peak for 1 sec (partial discharge detection limit = 5 pC); each π140 10

CAD (KiCad official)

  • Symbol: π140E31S
  • Footprint: Package_SO:SSOP-16_5.3x6.2mm_P0.65mm
  • 3D model: SSOP-16 (KiCad packages3D, STEP)
  • 3D model files: 140e31s-etched.step / 140e31s-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 140e31s.step / 140e31s.glb are the bare package body.

Provenance

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

  • Datasheet: 2Pai Semi datasheet (20 pp, sha256 5e3887ddbec8e982, retrieved 2026-10-26, 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