CTW136

Features 

• High speed 1MBit/s 

• High isolation voltage between input and output 

(Viso=5000 Vrms ) 

• Guaranteed CTR performance from 0°C to 70°C 

• Wide operating temperature range of -55°C to 

100°C 

• Regulatory Approvals 

UL - UL1577 (E364000) 

VDE - EN60747-5-5(VDE0884-5) 

CQC – GB4943.1, GB8898 

IEC60065, IEC60950 

Applications 

• Line receivers 

• Telecommunication equipment 

• High speed logic ground isolation 

• Feedback loop in switch-mode power supplies 

• Home appliances 

Description 

The CTW135, CTW136, CTW4502, and CTW4503 

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 device is packaged in an 8-pin wide body DIP 

and also available in surface mount option