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HCPL-0661-500E

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Broadcom AVAGO Logic Output Optoisolators, SO-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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HCPL-0661-500E

Broadcom AVAGO · Logic Output Optoisolators · SO-8

HCPL-0661-500E from Broadcom AVAGO, in a SO-8. 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 ANODE 1 passive Anode of LED 1 (channel 1 input); the datasheet recommends about 5 mA input on-current.
2 CATHODE 1 passive Cathode of LED 1 (channel 1 input).
3 CATHODE 2 passive Cathode of LED 2 (channel 2 input).
4 ANODE 2 passive Anode of LED 2 (channel 2 input).
5 GND power_in Ground for the output side; a 0.1 µF bypass capacitor must be connected as close as possible between pins 5 and 8.
6 VO2 output Channel 2 open-collector Schottky-clamped output, low when LED 2 is on.
7 VO1 output Channel 1 open-collector Schottky-clamped output, low when LED 1 is on.
8 VCC power_in Supply voltage for the output detector; a 0.1 µF bypass capacitor must be connected as close as possible between pins 5 and 8.

Key specifications

Parameter Value
Manufacturer Broadcom AVAGO
Package SO-8
Category Optoisolators
Pins 8

CAD (KiCad official)

  • Symbol: HCPL-0661-500E
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SO-8 (KiCad packages3D, STEP)
  • 3D model files: hcpl-0661-500e-etched.step / hcpl-0661-500e-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hcpl-0661-500e.step / hcpl-0661-500e.glb are the bare package body.

Provenance

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

  • Datasheet: Broadcom AVAGO datasheet (30 pp, sha256 5fe8353672e43760, retrieved 2026-10-10, 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