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quality Photoelectric Coupler HENGTUO HT-357-CTP1 with Integrated LED Phototransistor and Certified Safety Standards factory
quality Photoelectric Coupler HENGTUO HT-357-CTP1 with Integrated LED Phototransistor and Certified Safety Standards factory

Photoelectric Coupler HENGTUO HT-357-CTP1 with Integrated LED Phototransistor and Certified Safety Standards

Key Attributes
Model Number: HT-357-CTP1
Product Custom Attributes
Fall Time:
3us
Rise Time:
4us
Output Current:
50mA
Vce Saturation(VCE(sat)):
100mV@1mA,20mA
Operating Temperature:
-55℃~+110℃
Load Voltage:
80V
Reverse Voltage:
6V
Current Transfer Ratio:
200%;400%
Forward Current(If):
50mA
Number Of Channels:
1
Load Type:
Phototransistor
Input Type:
DC
Isolation Voltage(Vrms):
3.75kV
Mfr. Part #:
HT-357-CTP1
Package:
SOP-4-175mil-2.54mm
Product Description

Product Overview

The HT-357X is a high-isolation photoelectric coupler from Hengtuo Technology Co., LTD., featuring a light-emitting diode and phototransistor integrated into a 4-pin package. It offers wide-lead spacing and SMD options, with a high input-output isolation voltage of 3,750Vrms. Key features include a minimum current transfer ratio (CTR) of 50%, a wide operating temperature range of -55 to 110, and compliance with safety approvals such as UL 1577 and VDE DIN EN60747-5-5. This robust component is suitable for applications in programmable controllers, switching power supplies, intelligent meters, and various home appliances like air conditioners and water heaters.

Product Attributes

  • Brand: Hengtuo Technology Co., LTD.
  • Product Series: HT-357X
  • Certifications: UL 1577, VDE DIN EN60747-5-5 (VDE 0884-5), CQC11-471543-2022
  • Compliance: RoHS, MSL1
  • Package Options: 4-pin, Wide-lead spacing, SMD

Technical Specifications

Parameter Symbol Value Unit Condition
Maximum Ratings
Input Forward Current IF 50 mA
Reverse Voltage VR 6 V
Power Dissipation (Input) PD 70 mW
Derating factor (Input, above Ta = 90C) 2.9 mW/C
Output Collector - Emitter Voltage VCEO 80 V
Emitter - Collector Voltage VECO 7 V
Collector Current IC 50 mA
Collector Power Dissipation PC 150 mW
Derating factor (Output, above Ta = 70C) 3.7 mW/C
Operating temperature range Top -55 ~ 110 C
Storage temperature range Tstg -55 ~ 125 C
Total Power consumption P(W) 200 mW
Isolation Voltage VISO 3750 Vrms AC for 1 minute, R.H.= 40 ~ 60% R.H. Pins 1, 2 shorted; Pins 3, 4 shorted.
Soldering Temperature TSOL 260 C For 10 seconds
Electronic Optical Characteristics
Input Forward Voltage VF - , 1.2 , 1.4 V IF=20mA
Reverse Current IR - , - , 10 A VR=4V
Terminal Capacitance Ct - , 30 , 250 pF V=0, f=1KHz
Output Collector Dark Current ICEO - , - , 100 nA VCE=20V, IF=0
Collector-Emitter Breakdown Voltage BVCEO 80 V IC=0.1mA, IF=0
Emitter-Collector Breakdown Voltage BVECO 7 V IE=10A, IF=0
Collector-Emitter Saturation Voltage VCE(sat) 0.1 , 0.2 V IF=20mA, IC=1mA
Isolation Resistance Riso 51010 , 11011 , - DC500V, 40 ~ 60% R.H.
Floating Capacitance Cf 0.6 , 1 pF V=0, f=1MHz
Cut-off Frequency fc 80 kHz VCE=5V, IC=2mA RL=100, -3dB
Response Time (Rise) tr 4 , 18 s VCE=2V, IC=2mA RL=100
Response Time (Fall) tf 3 , 18 s VCE=2V, IC=2mA RL=100
Rank Table Of Current Transfer Ratio
Rank Code Symbol Min Max Condition
NONE CTR 50 600 IF=5mA, VCE=5V, Ta=25C
A 80 160
B 130 260
C 200 400
D 300 600

2411261516_HENGTUO-HT-357-CTP1_C34376196.pdf

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