Vishay Intertechnology，Inc .（纽约证券交易所:VSH）今天推出了一款对可见光具有更高灵敏度的新型高速硅PIN光电二极管，从而扩大了其光电子产品组合。Vishay半导体采用紧凑的2.0mm×1.8mm×0.6mm顶视图表面贴装封装，采用透明环氧树脂，灵敏度最高VEMD2704石英晶振提供70 ns的快速开关时间和17.6pF的低电容，用于可穿戴设备中的精确信号检测。

该器件的辐射敏感面积为1.51毫米，反向光电流为1.17安，暗电流为0.03纳，辐射灵敏度高，可检测350纳米至1100纳米的宽光谱范围内的可见光和近红外辐射。在健身追踪器和智能手表等可穿戴设备中，该光电二极管可以与绿色led一起用于光学心率检测，与红色led一起用于脉搏血氧仪应用。

与上一代解决方案相比，VEMD2074尺寸更小，更易于集成到耳塞等小型产品中；允许在光学系统中包括几个光电二极管，以进行更精确的信号检测；并且增加了传感器放置的灵活性。与上一代光电二极管相比，该器件的成本更低，非常适合智能手环等成本敏感型设备。

VEMD2704贴片晶振的半灵敏度角度为67°，工作温度范围为-40°C至+85°C，峰值灵敏度波长为940nm。符合RoHS标准，无卤素，并且维沙绿，根据J-STD-020，光电二极管的湿度灵敏度等级（MSL）为3，最低寿命为168小时。

VEMD2704的样品和量产现已上市，交付周期为20周。VEMD2704石英晶体振荡器是一种高速、高灵敏度的PIN光电二极管，对可见光具有增强的灵敏度。它针对心率监测和脉搏血氧计应用进行了优化。

Vishay制造世界上最大的分立半导体和无源电子元件产品组合之一，这些产品对于汽车、工业、计算、消费电子、电信、军事、航空航天和医疗市场的创新设计至关重要.

Vishay推出VEMD2704具有提高了可见光灵敏度

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.

元器件详情	频率	频率温度性	电源电压	工作温度
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 表面贴装振荡器
XO37CRECNA50M	50MHz	±100ppm	5V	-40°C to +85°C
Vishay进口晶振
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 表面贴装振荡器
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 表面贴装振荡器
XOSM-573-B-E-40M	40MHz	±100ppm	5V	0°C to 70°C
Vishay晶振工厂
XOSM-573 40.000 MHz 7.0 x 5.0 x 1.6 mm 3.3 V 表面贴装振荡器
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 表面贴装振荡器
XOSM-573AARE25M	25MHz	±25ppm	5V	-40°C to +85°C
Vishay
XOSM 25.000 MHz 7 x 5 mm 3.3 V 振荡器
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 全尺寸压控晶体振荡器

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Vishay推出VEMD2704具有提高了可见光灵敏度

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