Vishay Intertechnology High Speed PIN Photodiode Enables Improved Bio Sensor Performance, Slim Design for Wearables

Rhea-AI Summary

Vishay Intertechnology expands its optoelectronics portfolio with the launch of the VEMD8081, a high-speed silicon PIN photodiode designed for enhanced sensitivity to visible and infrared light. This device, measuring 4.8 mm by 2.5 mm and featuring a low profile of 0.48 mm, offers a typical reverse light current of 33 µA, marking a 15% increase over the previous model. It is ideal for wearable health devices, improving heart rate and SpO2 measurements. Production is available with a 10-week lead time.

Positive

• Launch of VEMD8081 enhances optoelectronics portfolio.
• Increased sensitivity with a typical reverse light current of 33 µA.
• 15% greater light current than predecessor improves device performance.
• Ideal for wearable health applications, boosting measurement accuracy.

Negative

• None.

Device Offers Increased Photocurrent of 33 µA in 4.8 mm by 2.5 mm SMD Package With Industry-Low 0.48 mm Profile

MALVERN, Pa., Feb. 17, 2021 (GLOBE NEWSWIRE) -- Vishay Intertechnology, Inc. (NYSE: VSH) today broadens its optoelectronics portfolio with the introduction of a new high speed silicon PIN photodiode with enhanced sensitivity to visible and infrared light. Featuring a rectangular 4.8 mm by 2.5 mm top-view, surface-mount package with an industry-low 0.48 mm profile, the Vishay Semiconductors VEMD8081 offers increased typical reverse light current of 33 µA for improved bio sensor performance in wearable devices and medical applications.

The VEMD8081 offers 15% greater reverse light current than its predecessor, the VEMD8080, while maintaining the same package dimensions. For designers, this provides a drop-in replacement that can improve performance by increasing signal output, or extend battery life by reducing LED current.

For heart rate measurement in wearable devices such as fitness trackers and smartwatches, the VEMD8081 is placed between two pulsing green LEDs. The light reflected off the skin is received by the photodiode and converted to an output current, with the device’s increased sensitivity enabling more accurate measurements. The VEMD8081’s rectangular shape maximizes the area of the photodiode receiving reflected light, eliminating the wasted area typically found in square photodiodes. When combined with red and infrared emitters, the device is ideal for SpO2 measurement in medical monitors.

With its high sensitivity and a radiant-sensitive area measuring 5.4 mm², the VEMD8081 utilizes Vishay’s proven wafer technology to detect visible and near infrared radiation over a wide spectral range from 350 nm to 1100 nm. For high sampling rates, the device offers fast switching times and low capacitance of 50 pF.

The VEMD8081 features a ± 65° angle of half-sensitivity, operating temperature range of -40 °C to +85 °C, and 840 nm wavelength of peak sensitivity. RoHS-compliant, halogen-free, and Vishay Green, the photodiode provides a moisture sensitivity level (MSL) of 3 in accordance with J-STD-020 for a floor life of 168 hours.

Samples and production quantities of the VEMD8081 are available now, with lead times of 10 weeks.

Vishay manufactures one of the world’s largest portfolios of discrete semiconductors and passive electronic components that are essential to innovative designs in the automotive, industrial, computing, consumer, telecommunications, military, aerospace, and medical markets. Serving customers worldwide, Vishay is The DNA of tech.™ Vishay Intertechnology, Inc. is a Fortune 1,000 Company listed on the NYSE (VSH). More on Vishay at www.Vishay.com.

The DNA of tech is a trademark of Vishay Intertechnology.

Vishay on Facebook: http://www.facebook.com/VishayIntertechnology
Vishay Twitter feed: http://twitter.com/vishayindust

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Links to product datasheet:
http://www.vishay.com/ppg?80218 (VEMD8081)

Link to product photo:
https://www.flickr.com/photos/vishay/albums/72157718269640447

For more information please contact:
Vishay Intertechnology
Peter Henrici, +1 408 567-8400
peter.henrici@vishay.com
or
Redpines
Bob Decker, +1 415 409-0233
bob.decker@redpinesgroup.com

FAQ

What is the VEMD8081 from Vishay Intertechnology?

The VEMD8081 is a high-speed silicon PIN photodiode designed for enhanced sensitivity to visible and infrared light, specifically for wearable devices.

How much reverse light current does the VEMD8081 produce?

The VEMD8081 offers a typical reverse light current of 33 µA, which is a 15% increase compared to its predecessor.

What are the dimensions of the VEMD8081 photodiode?

The VEMD8081 has dimensions of 4.8 mm by 2.5 mm and features an industry-low profile of 0.48 mm.

What is the lead time for the VEMD8081?

Samples and production quantities of the VEMD8081 are available now, with a lead time of 10 weeks.