PC-357-CTP1 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

PC-357-CTP1 product

PC-357-CTP1

Phototransistor Output

phototransistor optocouplerSOP-43,750 Vrms isolation80 V outputRoHSMSL 1

PC-357-CTP1 is a SOP-4 phototransistor optocoupler specified for 3,750 Vrms isolation, 80 V output blocking, and at least 50% CTR under the stated 5 mA test condition.

Best for

  • Isolated low-speed control signals
  • Programmable controllers
  • Switching power-supply feedback or control
  • Intelligent meters and appliance controls

Avoid if

  • A tightly controlled CTR is required without confirming the ordered CTR rank
  • High-speed isolation beyond the specified phototransistor switching capability is required
  • A documented lifecycle status is mandatory

Check before use

  • CTR requirement across temperature and LED aging
  • Required output pull-up resistance and switching speed
  • SOP-4 footprint and 2.54 mm terminal pitch
  • Isolation spacing and safety approval requirements for the end equipment

Key specifications

Isolation voltage
3,750 Vrms
Collector-emitter voltage
80 V
CTR
50% to 600% at IF=5 mA, VCE=5 V
Operating temperature
-55°C to +110°C
Package
SOP-4, 4 pins

Compliance & Environment

RoHS
Compliant
REACH
-
MSL
MSL 1
ECCN
-
HTSUS
-

Application

Programmable controllersSwitching power suppliesIntelligent metersHome appliances

CAD Models

Download ECAD models for PC-357-CTP1: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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KiCad Library
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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

PC-357-CTP1 is a 4-pin SOP-4 optocoupler containing an LED input and phototransistor output. The datasheet specifies 3,750 Vrms isolation voltage and an 80 V collector-emitter rating.