Vishay Visible Light Phototransistor 60° Angle, Through Hole 2-Pin 3 mm (T-1) Package TEPT4400

Vishay TEPT4400 visible light phototransistor is designed as an ambient light sensor with a 60° detection angle, housed in a 3 mm (T-1) through-hole package with two pins for mounting. It is built with NPN epitaxial planar phototransistor technology that provides high sensitivity to visible light, closely matching human eye response.

This phototransistor operates at a peak wavelength of 570 nm, making it highly suitable for detecting ambient light levels in various industrial and electronic applications such as display backlighting control, automatic brightness adjustment, and light measurement instruments.

The device supports a maximum collector current of 20 mA with a low maximum dark current of 50 nA, ensuring accurate light sensing even in low light conditions. It features a compact design with dimensions including 3.2 mm length, 3 mm diameter, 3.2 mm width, and 4.5 mm height, allowing space-efficient integration onto printed circuit boards.

The operating temperature range of -40°C to 85°C ensures reliable performance in harsh industrial environments. Vishay has designed this product with environmental compliance in mind, adhering to RoHS standards, making it suitable for modern eco-conscious manufacturing.

This phototransistor is an excellent alternative to traditional CdS photoresistors, offering better long-term stability and durability. Its clear plastic package enhances light transmission for optimal sensitivity.

Operates in visible light spectrum with peak wavelength of 570 nm. Compact 3 mm (T-1) through-hole package with 2 pins for mounting. Collector current max of 20 mA for robust output performance. Minimum operating temperature of -40°C and max of 85°C for wide environmental tolerance.

Low dark current of 50 nA to minimize noise in light detection. Clear plastic packaging facilitates effective light sensing. Angle of half sensitivity at 60° provides focused light detection. RoHS compliant and environmentally friendly component.

Replaces CdS photoresistors for improved reliability and longevity. Manufactured in Thailand, ensuring consistent quality and supply.

This phototransistor is widely applicable in electronics, industrial systems, HVAC controls, lighting control, and instrumentation. It is suitable for engineers and manufacturers requiring precise ambient light sensing solutions with reliable electrical and environmental performance.

Browse additional Vishay Phototransistor products and related electronics components at EnvMart for comprehensive industrial and commercial applications.