Vishay Intertechnology，Inc .（紐約證券交易所:VSH）今天推出了一款對可見光具有更高靈敏度的新型高速硅PIN光電二極管，從而擴(kuò)大了其光電子產(chǎn)品組合。Vishay半導(dǎo)體采用緊湊的2.0mm×1.8mm×0.6mm頂視圖表面貼裝封裝，采用透明環(huán)氧樹脂，靈敏度最高VEMD2704石英晶振提供70 ns的快速開關(guān)時間和17.6pF的低電容，用于可穿戴設(shè)備中的精確信號檢測。

該器件的輻射敏感面積為1.51毫米，反向光電流為1.17安，暗電流為0.03納，輻射靈敏度高，可檢測350納米至1100納米的寬光譜范圍內(nèi)的可見光和近紅外輻射。在健身追蹤器和智能手表等可穿戴設(shè)備中，該光電二極管可以與綠色led一起用于光學(xué)心率檢測，與紅色led一起用于脈搏血氧儀應(yīng)用。

與上一代解決方案相比，VEMD2074尺寸更小，更易于集成到耳塞等小型產(chǎn)品中；允許在光學(xué)系統(tǒng)中包括幾個光電二極管，以進(jìn)行更精確的信號檢測；并且增加了傳感器放置的靈活性。與上一代光電二極管相比，該器件的成本更低，非常適合智能手環(huán)等成本敏感型設(shè)備。

VEMD2704貼片晶振的半靈敏度角度為67°，工作溫度范圍為-40°C至+85°C，峰值靈敏度波長為940nm。符合RoHS標(biāo)準(zhǔn)，無鹵素，并且維沙綠，根據(jù)J-STD-020，光電二極管的濕度靈敏度等級（MSL）為3，最低壽命為168小時。

VEMD2704的樣品和量產(chǎn)現(xiàn)已上市，交付周期為20周。VEMD2704石英晶體振蕩器是一種高速、高靈敏度的PIN光電二極管，對可見光具有增強(qiáng)的靈敏度。它針對心率監(jiān)測和脈搏血氧計應(yīng)用進(jìn)行了優(yōu)化。

Vishay制造世界上最大的分立半導(dǎo)體和無源電子元件產(chǎn)品組合之一，這些產(chǎn)品對于汽車、工業(yè)、計算、消費電子、電信、軍事、航空航天和醫(yī)療市場的創(chuàng)新設(shè)計至關(guān)重要.

Vishay推出VEMD2704具有提高了可見光靈敏度

Vishay Intertechnology High Speed PIN Photodiode Delivers Enhanced Sensitivity for Visible Light in Compact 2.0 mm x 1.8 mm x 0.6 mm SMD Package

Device Offers Simple Integration, Precise Signal Detection, and Design Flexibility for Heart Rate Monitoring and Pulse Oximetry Applications in Wearables

Vishay Intertechnology, Inc. (NYSE: VSH) today broadened its optoelectronics portfolio with the introduction of a new high speed silicon PIN photodiode with enhanced sensitivity for visible light. Offered in a compact 2.0 mm by 1.8 mm by 0.6 mm top-view, surface-mount package with clear epoxy for maximum sensitivity, the Vishay Semiconductors VEMD2704 provides fast switching times of 70 ns and low capacitance of 17.6 pF for precise signal detection in wearable devices.

With a radiant-sensitive area measuring 1.51 mm² — and high radiant sensitivity with a reverse light current of 1.17 µA and dark current of 0.03 nA — the device released today detects visible and near infrared radiation over a wide spectrum range from 350 nm to 1100 nm. In wearable devices such as fitness trackers and smartwatches, the photodiode can be used with green LEDs for optical heart rate detection and red LEDs for pulse oximetry applications.

Offering a reduced size compared to previous-generation solutions, the VEMD2074 enables easier integration into smaller products like earbuds; allows several photodiodes to be included in the optical system for more precise signal detection; and offers increased flexibility in sensor placement. The device is also available at a lower cost than previous-generation photodiodes, making it ideal for cost-sensitive devices like smart bands.

The VEMD2704 features a ± 67° angle of half-sensitivity, operating temperature range of -40 °C to +85 °C, and 940 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 VEMD2704 are available now, with lead times of 20 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.

元器件詳情	頻率	頻率溫度性	電源電壓	工作溫度
XO57CTECNA12M	12MHz	±100ppm	5V	0°C to 70°C
Vishay
XO57 系列 7 x 5 x 1.9 mm 12 MHz 3.3 V ±100 ppm 表面貼裝振蕩器
XO37CRECNA50M	50MHz	±100ppm	5V	-40°C to +85°C
Vishay進(jìn)口晶振
XOSM-573 Series 50 MHz 7 x 5 mm 5 V ±100 ppm Surface Mount Clock Oscillator
XO37DREHNA18M432	18.432MHz	±100ppm	3.3V	-40°C to +85°C
Vishay
XOSM-573 Series 18.432 MHz 7 x 5 mm 5 V ±50 ppm Surface Mount Clock Oscillator
XO37DTEHNA30M	30MHz	±50ppm	5V	0°C to 70°C
Vishay
XOSM-573 Series 30 MHz 7 x 5 mm 5 V ±50 ppm Surface Mount Clock Oscillator
XO37DTEHNA33M33	33.33MHz	±50ppm	5V	0°C to 70°C
Vishay
XOSM-573 Series 33.33 MHz 7 x 5 mm 5 V ±50 ppm Surface Mount Clock Oscillator
XO57CTECNA12M	12MHz	±100ppm	5V	0°C to 70°C
Vishay
XO57 系列 7 x 5 x 1.9 mm 12 MHz 3.3 V ±100 ppm 表面貼裝振蕩器
XO57CTEHNA2M4576	2.4576MHz	±100ppm	5V	0°C to 70°C
Vishay
XOSM-57 Series 2.4576 MHZ 7 x 5 mm 5 V ±100 ppm Surface Mount Clock Oscillator
XO57DRECNA14M7456	14.7456M	±100ppm	5V	0°C to 70°C
Vishay
XOSM-57 Series 14.756 MHz 7 x 5 mm 5 V ±50 ppm Surface Mount Clock Oscillator
XO57DTECNA19M6608	19.6608MHz	±50ppm	5V	0°C to 70°C
Vishay
XOSM-57 Series 19.6608 MHz 7 x 5 mm 5 V ±50 ppm Surface Mount Clock Oscillator
XO63DTEHNA30M	30MHz	±50ppm	5V	0°C to 70°C
Vishay
XO63 30 MHz 50 PPM 表面貼裝振蕩器
XOSM-573-B-E-40M	40MHz	±100ppm	5V	0°C to 70°C
Vishay晶振工廠
XOSM-573 40.000 MHz 7.0 x 5.0 x 1.6 mm 3.3 V 表面貼裝振蕩器
XOSM-573-B-E-40M	40MHz	±100ppm	5V	0°C to 70°C
Vishay
XOSM-573 40.000 MHz 7.0 x 5.0 x 1.6 mm 3.3 V 表面貼裝振蕩器
XOSM-573AARE25M	25MHz	±25ppm	5V	-40°C to +85°C
Vishay
XOSM 25.000 MHz 7 x 5 mm 3.3 V 振蕩器
XOSM-57AARE6.0000M	6MHz	±25ppm	5V	-40°C to +85°C
Vishay
XOSM-57 Series 6 MHz 7 x 5 mm 5 V ±25 ppm Surface Mount Clock Oscillator
XOVC1CDNA1M	1MHz	±100ppm	5V	0°C to 70°C
Vishay
XOVC-23 系列 1 MHz 5 V 100 ppm 全尺寸壓控晶體振蕩器

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Vishay推出VEMD2704具有提高了可見光靈敏度

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