KB817

Transistor, Photovoltaic Output Optoisolators Overview

The KB817 is a single-channel optocoupler featuring a gallium arsenide infrared LED and an NPN silicon phototransistor. It provides high isolation voltage of 5000 Vrms between input and output with solid insulation thickness of at least 0.6mm. The component utilizes a dual-in-line package with a lead pitch of 2.54mm. It supports a maximum forward current of 50mA and offers creepage distance of 7mm or more. The device operates within a temperature range of -40°C to 85°C and complies with RoHS standards.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High isolation voltage capability for safe signal transmission between circuits of different potentials
• Compact dual-in-line package design suitable for general-purpose applications
• Recognized by UL, CUL, and approved by VDE for international safety compliance

Transistor, Photovoltaic Output Optoisolators Applications

• Computer terminals and peripherals
• Programmable logic controllers (PLCs)
• Registers, copiers, and automatic vending machines
• System appliances and measuring instruments
• Signal transmission between circuits of different potentials and impedances

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix designation when ordering, as variants such as KB817-B exist within the series. Confirm that the required package type matches the application constraints, noting the standard through-hole DIP configuration. Ensure compatibility with the specified operating temperature range and isolation voltage requirements for the target circuit design before finalizing procurement.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component for applications requiring galvanic isolation between low-voltage control signals and higher-voltage loads. The NPN phototransistor output is suitable for digital switching applications. Consider the 5000 Vrms isolation rating for safety-critical interfaces. Verify that the 2.54mm lead pitch fits the PCB layout constraints. This series is appropriate for general-purpose industrial and computer peripheral isolation tasks.

Transistor, Photovoltaic Output Optoisolators Part Context

The KB817 belongs to Kingbright's general-purpose high isolation voltage single transistor type photocoupler series. It shares functional similarities with other members like KB817A-B and KB817AB-B, which differ primarily in gain groupings or specific suffix designations. The core architecture remains consistent across the family, utilizing GaAs LED and NPN phototransistor technology for reliable optical coupling.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes include KB817A-B, KB817AB-B, KB817AC-B, and KB817AD-B from Kingbright. These parts share the same basic description and package form factor. Verify specific electrical parameter tolerances and gain groupings when substituting to ensure circuit performance compatibility.