LTV-851

Transistor, Photovoltaic Output Optoisolators Overview

The LTV-851 is a single-channel transistor output optocoupler manufactured by Lite-On Inc. It features a phototransistor output and accepts DC input current. The device utilizes a 4-pin PDIP through-hole package with a standard 7.62mm width. Key electrical specifications include a minimum current transfer ratio of 40% at an input current of 5mA and collector-emitter voltage of 5V. It provides high isolation capability with a maximum isolation voltage of 5,000 Vrms between the input and output circuits. Typical switching characteristics consist of a rise time of 4µs and a fall time of 5µs.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides galvanic isolation via a single infrared LED coupled to a phototransistor.
• Ensures high safety standards with a 5,000 Vrms isolation voltage rating.
• Delivers reliable signal transmission with a minimum current transfer ratio of 40%.

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring circuit isolation
• Signal switching in low-frequency applications
• Power supply feedback loops

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific ordering suffix against official Lite-On documentation to confirm exact specifications such as lead-free status or tape-and-reel packaging options. Ensure that the procurement source provides valid UL recognition data corresponding to file number E113898 for compliance requirements. Cross-reference the component marking with the datasheet to prevent counterfeit substitution.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a single channel of isolation is required with moderate speed performance. The 40% CTR specification suits applications where standard logic levels are sufficient. Consider the 4µs rise time for timing constraints. The through-hole DIP package facilitates prototyping and manual assembly processes compared to surface-mount alternatives.

Transistor, Photovoltaic Output Optoisolators Part Context

This component belongs to the LTV series of transistor output optocouplers produced by Lite-On Technology Corporation. The series is designed for general-purpose isolation tasks. The LTV-851 specifically targets applications needing robust electrical separation without the complexity of multi-channel configurations. It serves as a fundamental building block for digital signal isolation in various electronic assemblies.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with direct replacements only if supported by official manufacturer cross-reference lists. Do not assume functional equivalence based on pinout alone without confirming electrical parameter alignment.