CTM453

Features 

 High speed: 1 Mbit/s 

 High isolation voltage between input and output 

(Viso=3750 Vrms ) 

 Guaranteed performance from 0°C to 70°C

 Wide operating temperature range of -55°C to 

125°C 

 Green Package

 Regulatory Approvals

 UL - UL1577 (E364000)

 VDE - EN60747-5-5(VDE0884-5)

 CQC – GB4943.1, GB8898

 IEC60065, IEC60950

Description

The CTM452 and CTM453 devices each consist of 

an infrared emitting diode, optically coupled to a 

high speed photo detector transistor. A separate 

connection for the photodiode bias and 

output-transistor collector increase the speed by 

several orders of magnitude over conventional

phototransistor couplers by reducing the

base-collector capacitance of the input transistor. 

The devices are packaged in a Mini-Flat package.

Applications 

 Line receivers 

 Telecommunication equipment 

 Feedback loop in switch-mode power supplies 

 Home appliances

 High speed logic ground isolation