 | Author | Message | < Digital Electronic ~ DESCRIPTION(HMA124R3V datasheet and pdf download) | | elwen | | Posted: Fri Jul 04, 2008 3:48 am Post subject: DESCRIPTION(HMA124R3V datasheet and pdf download) | | | | Joined: 26 Jun 2008 Posts: 29 | DESCRIPTION(HMA124R3V datasheet and pdf download)
http://www.chinaicmart.com/series-HMA/HMA124R3V.html
The HMA124, HMA121 series and HMA2701 series consists of a gallium arsenide infrared emitting diode driving a silicon phototransistor in a compact 4-pin mini-flat package. The lead pitch is 2.54 mm.
The HMAA2705 consists of two gallium arsenide infrared emitting diodes, connected in inverse parallel, driving a single silicon phototransistor in a compact 4-pin mini-flat package. The lead pitch is 2.54mm.
APPLICATIONS
HMAA2705
* AC line monitor
* Unknown polarity DC sensor
* Telephone line receiver
HMA121 series, HMA2701 series, HMA124
* Digital logic inputs
* Microprocessor inputs
* Power supply monitor
* Twisted pair line receiver
* Telephone line receiver
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