LTV-849

Transistor, Photovoltaic Output Optoisolators Overview

The LTV-849 is a quad-channel phototransistor output optoisolator manufactured by Lite-On Inc. It provides electrical isolation between input and output circuits using an infrared LED and phototransistor array. The device features a high isolation voltage of 5000 Vrms, ensuring safety in high-voltage environments. Key electrical parameters include a collector-emitter voltage (Vceo) of 35V and a maximum collector current of 50mA per channel. The typical forward voltage (Vf) is 1.2V, with a current transfer ratio of 50% at 5mA input and 5V output. The response time is specified as 4µs. It is housed in a 16-pin DIP package suitable for through-hole mounting.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides effective switching and signal coupling between input and output circuits while maintaining electrical isolation
• Features a phototransistor output configuration for reliable signal transmission
• Offers high input-output isolation voltage capability for enhanced circuit protection

Transistor, Photovoltaic Output Optoisolators Applications

• Telephone exchanges
• Computer terminals
• System appliances and measuring instruments
• Signal transmission between isolated circuits

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific ordering suffix to confirm packaging type, such as tube or cut tape, as availability may vary by distributor. Ensure the component matches the required 16-pin DIP footprint and through-hole mounting specifications for your PCB design. Confirm that the 5000 Vrms isolation rating meets your system's safety requirements. Check datasheet limits for collector current and voltage to ensure operational compliance under all expected load conditions.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when multi-channel isolation is required within a single package. The quad-channel design reduces board space compared to discrete solutions. Consider the 35V collector-emitter voltage limit for low-voltage logic interfacing. The 4µs response time suits general-purpose digital signal isolation rather than high-speed data applications. Verify compatibility with standard DIP-16 footprints during the schematic capture phase.

Transistor, Photovoltaic Output Optoisolators Part Context

The LTV-849 belongs to Lite-On’s family of transistor output optoisolators designed for general-purpose isolation tasks. It complements other quad-channel variants by offering a balance of speed and isolation performance. The device is commonly used in industrial control and communication equipment where multiple isolated channels are necessary. Its DIP-16 package facilitates easy integration into legacy and modern through-hole designs.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer cross-reference guides for equivalent quad-channel phototransistor optoisolators with matching 5000 Vrms isolation and 16-DIP packaging.