Malvern, Pa. Vishay Intertechnology, Inc. says it has introduced the industry's first transmissive (interrupter) optical sensors qualified to the AEC Q101 standard, a reliability test qualification procedure for discrete semiconductors published by the Automotive Electronics Council.
The TCPT1300X01 and TCUT1300X01 transmissive sensors are also said to be the industry's first with a Moisture Sensitivity Level rating of 1 (MSL1), which means they have an unlimited floor life. The MSL1 rating is important for automotive and industrial manufacturers. Typical optical devices, like visible LEDs, have an MSL4 rating and must be assembled within 72 hours of opening the reel packaging. If not used in 72 hours, the component will absorb moisture and require baking for up to 96 hours to eliminate the moisture.
The sensors offer a wide operating temperature range of -40°C to 85°C, enabling them to work in low- and high-temperature environments. With a 3.0-mm gap width, the sensors can be used with a wide variety of materials and allow for looser mechanical tolerances than sensors with smaller gaps, making them suitable for automotive and industrial applications.
The TCPT1300X01 is a single channel transmissive sensor with an aperture of 0.3 mm and a gap of 3.0 mm. The TCUT1300X01 is a dual-channel transmissive sensor with two apertures (two detectors) of 0.3 mm and a gap of 3.0 mm. Both sensors have a phototransistor output and operate at a wavelength of 950 nm.
The TCPT1300X01 and TCUT1300X01 can be used with an encoding wheel to sense rotary position and velocity, or with a linear code strip to sense linear position and velocity. With dual channels, the TCUT1300X01 can also be used to detect direction and is commonly used for steering wheel optical encoding. For example, an electronic stability control system relies on the critical output of speed, position, and direction of the steering wheel, as determined by the encoder, to help drivers on icy or wet roads. In electric power steering (EPS), the transmissive sensor plays a role in providing steering wheel speed, position, and direction as inputs to a larger system using an assist motor to replace the traditional hydraulic power steering pump.
The TCPT1300X01 and TCUT1300X01 sensors are RoHS compliant, free of halogens, and compatible with lead (Pb)-free soldering.
Pricing: $0.60 per unit for U.S. delivery in quantities of 6,000.
Availability: Samples are available now. Production orders have a lead time of six weeks.
Datasheets: TCPT1300 and TCUT1300
Vishay Intertechnology, 1-619-336-0860, www.vishay.com