LTV-814S-TA

Transistor, Photovoltaic Output Optoisolators Overview

The LTV-814S-TA is a single-channel phototransistor output optocoupler manufactured by Lite-On Inc. It features a surface-mount 4-SMD gull-wing package designed for high-density circuit board applications. The device provides electrical isolation with a rated voltage of 5000Vrms, ensuring safety in low-voltage control circuits interfacing with higher voltage loads. It accepts both AC and DC input signals, offering versatility in signal transmission. Key electrical characteristics include a maximum forward current of 50mA and a collector-emitter saturation voltage of 200mV. The unit operates within a temperature range of -30°C to 110°C, supporting reliable performance in industrial environments.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides galvanic isolation between input control circuits and output load circuits using an internal LED and phototransistor pair.
• Accepts both alternating current (AC) and direct current (DC) input signals without requiring external rectification components.
• Features a compact surface-mount footprint suitable for automated assembly and space-constrained electronic designs.

Transistor, Photovoltaic Output Optoisolators Applications

• Solid-state relay driver circuits
• Microcontroller interface isolation
• Power supply feedback loops

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix TA against the manufacturer's latest datasheet to confirm pinout orientation and tape-and-reel specifications. Ensure the procurement source provides original manufacturer documentation to validate authenticity. Cross-reference the component marking with official Lite-On identification guides to prevent counterfeit substitution during quality inspection.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high-speed switching is not critical but robust isolation is required. The phototransistor output offers moderate current transfer ratios suitable for logic-level signaling. Consider thermal management requirements if operating near the upper temperature limit. Verify that the 50mA forward current rating aligns with the driving source capabilities in the target application design.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the LTV-8x4 series of surface-mount optocouplers from Lite-On. The series is characterized by small form factors and standardized pin configurations. It serves as a surface-mount alternative to through-hole variants like the LTV-814, maintaining similar electrical isolation standards while enabling modern PCB manufacturing techniques.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

HCPL-814-50AE is listed as a similar substitute by distributors. Verify pin compatibility and current transfer ratio specifications before implementation.