DESCRIPTION

The IL250, IL251, IL252, ILD252 are bidirectional input

optically coupled isolators consisting of two gallium

arsenide infrared LEDs coupled to a silicon NPN

phototransistor per channel.

The IL250 has a minimum CTR of 50 , the IL251 has a

minimum CTR of 20 , and the IL252, ILD252 has a

minimum CTR of 100 .

The IL250, IL251, IL252 are single channel optocouplers.

The ILD252 has two isolated channels in a single DIP

package.

FEATURES

• AC or polarity insensitive inputs

• Built-in reverse polarity input protection

• Improved CTR symmetry

• Industry standard DIP package

• Material categorization: 

for definitions of compliance please see

www.vishay.com/doc?99912

APPLICATIONS

• Ideal for AC signal detection and monitoring

AGENCY APPROVALS

• UL1577, file no. E52744, double protection

• cUL tested to CSA 22.2 bulletin 5A

• CSA 93751

• BSI EN 60950, BSI EN 60065

• DIN EN 60747-5-5 (VDE 0884-5)

• CQC GB4943.1-2011 and GB8898-2011 (suitable for

installation altitude below 2000 m)