Drop-in compatible phototransistors withstand lead-free reflow

Systems using Vishay’s TEMT series phototransistors can now migrate directly to lead-free reflow soldering, with the arrival of the pin- and performance-compatible VEMT series.

By achieving 2µs rise and fall times and ±60° angle of half intensity, these devices are fully compatible with the current TEMT series, which enables easy and quick migration to meet leadfree soldering requirements.

Initially three VEMT series phototransistors are available, including the VEMT3700 and VEMT4700 in PLCC2 and PLCC3 packages respectively. These are sensitive to visible and near-infrared wavelengths from 450nm to 1080nm. The VEMT3700F, also in the PLCC2 package, includes a band-pass filter to confine sensitivity to the near infrared region from 830nm to 1100nm with peak sensitivity at 940nm.

All devices match with the Vishay infrared emitter VSML3710.

 

FEATURES Dimensions: 3.5mm x 2.8mm Meets RoHS 2002/95/EC and WEEE 2002/96/EC No base terminal Fast response times

APPLICATIONS Photo interrupters Miniature switches Counters Encoders and position sensors Light sensors

 

 

 

Vishay / VEMT series