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quality High isolation photoelectric coupler AOTE PC3H4A featuring phototransistor and LED in a compact SSOP4 package factory
quality High isolation photoelectric coupler AOTE PC3H4A featuring phototransistor and LED in a compact SSOP4 package factory

High isolation photoelectric coupler AOTE PC3H4A featuring phototransistor and LED in a compact SSOP4 package

Key Attributes
Model Number: PC3H4A
Product Custom Attributes
Output Current:
50mA
Fall Time:
18us
Rise Time:
18us
Vce Saturation(VCE(sat)):
100mV@20mA,1mA
Operating Temperature:
-55℃~+110℃
Load Voltage:
80V
Load Type:
Phototransistor
Current Transfer Ratio:
300%;20%
Forward Current(If):
50mA
Input Type:
DC
Isolation Voltage(Vrms):
3.75kV
Pd - Power Dissipation:
200mW
Mfr. Part #:
PC3H4A
Package:
SSOP-4
Product Description

Product Overview

The PC3H4X is a photoelectric coupler featuring a light-emitting diode and a phototransistor, housed in a compact 4-pin SSOP4 package. It offers a current transfer ratio (CTR) of 20% and a high input-output isolation voltage of 3750 Vrms. With a collector-emitter breakdown voltage of 80V and an operating temperature range of -55 to 110, it meets reinforced insulation standards and various safety approvals including UL 1577, VDE DIN EN60747-5-5, and CQC11-471543-2022. The PC3H4X is suitable for applications such as switching power supplies, intelligent meters, industrial control systems, measuring instruments, office equipment like copiers, and household appliances including air conditioners, fans, and water heaters.

Product Attributes

  • Brand: AOTE
  • Origin: Taiwan
  • Package Type: SSOP4
  • Certifications: UL 1577, VDE DIN EN60747-5-5, CQC11-471543-2022
  • Insulation Standard: Reinforced Insulation
  • Halogen-Free: Yes (indicated by 'H' in marking)

Technical Specifications

Parameter Symbol Condition Min Typ Max Unit
General
Current Transfer Ratio CTR IF = 1mA, VCE = 5V, Ta = 25 20 300 %
Input-Output Isolation Voltage VISO 3750 Vrms
Collector-Emitter Breakdown Voltage BVCEO IF = 0mA, IC = 0.1mA 80 V
Operating Temperature Ta -55 110
Electrical Characteristics
Forward Voltage VF IF = 20mA 1.2 1.4 V
Collector Dark Current ICEO VCE = 20V, IF = 0mA 100 nA
Collector-Emitter Saturation Voltage VCE(sat) IF = 20mA, IC = 1mA 0.1 0.2 V
Isolation Resistance RISO DC500V, 40~60%R.H. 5 x 1010 1 x 1011
Cut-off Frequency Fc VCE = 5V, IC = 2mA, RL = 100, -3dB 80 kHz
Rise Time Tr VCE = 2V, IC = 2mA, RL = 100 18 s
Fall Time Tf VCE = 2V, IC = 2mA, RL = 100 18 s
Ratings
Forward Current (Input) IF 50 mA
Power Dissipation (Input) PD 70 mW
Collector Current (Output) IC 50 mA
Collector Power Dissipation (Output) PC 150 mW
Total Power Dissipation Ptot 200 mW
Isolation Voltage Viso For 1 min 3750 Vrms
Storage Temperature Tstg -55 125
Soldering Temperature Tsol 260
Safety Standards
Creepage Distance L Input to Output 5.0 mm
Clearance Distance L Input to Output 5.0 mm
Insulation Thickness DTI Emitter to Detector 0.4 mm
Peak Isolation Voltage VIORM DIN/EN/IEC EN60747-5-5 600 Vpeak
Transient Isolation Voltage VIOTM DIN/EN/IEC EN60747-5-5 5000 Vpeak

2505261455_AOTE-PC3H4A_C48996490.pdf

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