component

PC817B-MS

Public Made by Adom

by adom

MSKSEMI Transistor, Photovoltaic Output Optoisolators, DIP-4. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentoptoisolatorspc817b-msfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 8d ago
viewers pc817b-ms: viewers · Ray 8d ago
package.json Publish 0.1.0 · Ray 8d ago
page.json Set visibility: public · Ray 8d ago
pc817b-ms-etched.glb Publish 0.1.0 · Ray 8d ago
pc817b-ms-etched.step pc817b-ms: factory component page (tier=lcsc) · Ray 8d ago
pc817b-ms-hero.glb pc817b-ms: hero GLB from the etched model (keeps the MPN mark) · Ray 8d ago
pc817b-ms-hero.overlay.json Publish 0.1.0 · Ray 8d ago
pc817b-ms.glb Publish 0.1.0 · Ray 8d ago
pc817b-ms.kicad_mod Publish 0.1.0 · Ray 8d ago
pc817b-ms.kicad_sym Publish 0.1.0 · Ray 8d ago
pc817b-ms.lbr Publish 0.1.0 · Ray 8d ago
pc817b-ms.step Publish 0.1.0 · Ray 8d ago
README.md Publish 0.1.0 · Ray 8d ago

PC817B-MS

MSKSEMI · Transistor, Photovoltaic Output Optoisolators · DIP-4

PC817B-MS from MSKSEMI, in a DIP-4. 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 input Anode of the input GaAs LED; forward current IF max 50 mA, reverse voltage VR max 6 V, VF typ 1.20 V at IF=20 mA.
2 Cathode input Cathode of the input GaAs LED, returned to the input-side ground; IF max 50 mA, VR max 6 V.
3 Emitter passive Emitter of the NPN phototransistor output; VECO (emitter-collector) max 6 V.
4 Collector passive Collector of the NPN phototransistor output; VCEO max 35 V, collector current IC max 50 mA.

Key specifications

Parameter Value
Manufacturer MSKSEMI
Package DIP-4
Category Optoisolators
Pins 4

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 current IF 50 mA 3
Reverse voltage VR 6 V 3
Power consumption (input) P 70 mW 3
Collector-emitter voltage VCEO 35 V 3
Emitter-collector voltage VECO 6 V 3
Collector current IC 50 mA 3
Power consumption (output) PC 150 mW 3
Total power consumption Ptot 200 mW 3
Insulation voltage Viso 5000 Vrms AC test, 1 minute, humidity 40-60% 3
Max insulation voltage VIOTM 6000 V 3
Rated impulse insulation voltage VIORM 630 V 3
Working temperature Topr -55 110 ℃ 3
Storage temperature Tstg -55 125 ℃ 3
Soldering temperature Tsol 260 ℃ 10 seconds soldering time 3
Forward voltage VF 1.2 1.4 V IF=20mA 3
Reverse current IR 5 uA VR=5V 3
Collector capacitance Ct 30 250 pF V=0, f=1MHz 3
Collector to emitter dark current ICEO 150 nA VCE=70V, IF=0mA 3
Collector-emitter breakdown voltage BVCEO 70 V IC=0.1mA, IF=0mA 3
Emitter-collector breakdown voltage BVECO 6 V IE=10μA, IF=0mA 3
Current conversion ratio (grade B) CTR 130 260 % IF=5mA, VCE=5V 4
Collector-emitter saturation voltage VCE(sat) 0.1 0.2 V IF=20mA, IC=1mA 4
Capacitance (input-output) Cf 0.6 1 pF V=0, f=1MHz 4
Rise time tr 6 18 μs VCE=2V, IC=2mA, RL=100Ω 4
Fall time tf 5 18 μs 4

CAD (KiCad official)

  • Symbol: PC817B-MS
  • Footprint: Package_DIP:DIP-4_W7.62mm
  • 3D model: DIP-4 (KiCad packages3D, STEP)
  • 3D model files: pc817b-ms-etched.step / pc817b-ms-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pc817b-ms.step / pc817b-ms.glb are the bare package body.

Provenance

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

  • Datasheet: MSKSEMI datasheet (9 pp, sha256 13e738f0b46732ff, retrieved 2026-10-18, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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