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Description

The TCET111.(G) consists of a phototransistor optically coupled to a gallium arsenide infrared-emitting diode in a 4-lead plastic dual inline package. The elements are mounted on one lead frame using a coplanar technique, providing a fixed distance between input and output for highest safety requirements.

Features

? CTR offered in 9 Groups

? Isolation materials according to UL94-VO

? Pollution degree 2 (DIN/VDE 0110 / resp. IEC 664)

? Climatic classification 55/100/21 (IEC 68 part 1)

? Special construction:

?? Therefore, extra low coupling capacity of typical 0.2 pF, high Common Mode Rejection

? Low temperature coefficient of CTR

? Temperature range - 40 to + 110 °C

? Coupling System U

? Rated impulse voltage (transient overvoltage) VIOTM= 8 kVpeak

? Isolation test voltage (partial discharge test voltage) Vpd= 1.6 kV

? Rated isolation voltage (RMS includes DC) VIOWM= 600 VRMS(848 Vpeak)

? Rated recurring peak voltage (repetitive) VIORM= 600 VRMS

? Creepage current resistance according to VDE 0303/IEC 112 Comparative Tracking Index: CTI ≥175

? Thickness through insulation ≥0.75 mm

? Internal creepage distance > 4 mm

? External creepage distance > 8 mm

Applications

Circuits for safe protective separation against electrical shock according to safety class II (reinforced isolation):

? For appl. class I - IV at mains voltage ≤300 V

? For appl. class I - III at mains voltage ≤600 V according to VDE 0884, table 2, suitable for: Switch-mode power supplies, line receiver, computer peripheral interface, microprocessor system interface, with operating temperature up to 110°C