LTV-817-D

Transistor, Photovoltaic Output Optoisolators Overview

The LTV-817-D is a single-channel transistor output optocoupler manufactured by Lite-On. It features an NPN phototransistor output with a maximum collector-emitter voltage of 35V and a peak forward current rating of 20mA. The device provides high isolation capability with an insulation voltage of 5000Vrms. Key electrical parameters include a minimum current transfer ratio of 300% and a maximum of 600%, measured at a forward current of 5mA. The typical rise time is 18 microseconds, while the saturation voltage is capped at 200mV. It is housed in a 4-pin PDIP package designed for through-hole mounting.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides robust electrical isolation between input and output circuits via optical transmission
• Utilizes an NPN phototransistor output stage for reliable switching applications
• Ensures signal integrity across isolated domains with high insulation voltage ratings

Transistor, Photovoltaic Output Optoisolators Applications

• General-purpose signal isolation in industrial control systems
• Interface circuits for microcontrollers and logic gates
• Power supply feedback loops requiring galvanic separation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify that the specific part number matches the required through-hole DIP-4 configuration, as surface mount variants exist within the same family. Confirm RoHS compliance status if environmental regulations apply to the end product. Ensure the supplier provides official datasheets to validate the 5000Vrms isolation rating and current transfer ratio specifications before finalizing procurement.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when through-hole mounting is required for mechanical stability or existing board layouts. Choose based on the need for a standard NPN output with moderate speed characteristics. Consider the 300% to 600% current transfer ratio range for circuit design margins. Evaluate the 35V collector-emitter voltage limit against load requirements to ensure safe operating conditions during switching events.

Transistor, Photovoltaic Output Optoisolators Part Context

This device belongs to the LTV-817 series, which includes various packaging options such as SMD and different lead configurations. The 'D' suffix specifically denotes the through-hole PDIP variant. This series is widely recognized for general-purpose isolation tasks, offering a balance of performance and cost-effectiveness for basic digital and analog signal coupling needs.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers include VO615A-9 from Vishay. Verify pin compatibility and electrical parameter alignment, particularly regarding current transfer ratio and isolation voltage, before substituting.