K825P

Transistor, Photovoltaic Output Optoisolators Overview

The K825P is a dual-channel transistor output optocoupler manufactured by Vishay Semiconductor Opto Division. It features Photodarlington outputs housed in an 8-pin PDIP package. Key electrical parameters include a maximum collector-emitter voltage of 35 V, a maximum collector current of 80 mA, and an insulation voltage of 5000 Vrms. The device operates with a forward current up to 60 mA and exhibits a typical current transfer ratio of 800%. Power dissipation is rated at 250 mW, with an operating temperature range spanning from -40°C to +100°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Dual-channel configuration providing independent signal isolation paths within a single package
• High-speed Photodarlington output structure designed for efficient signal transmission
• Robust insulation capability supporting high-voltage isolation requirements between input and output circuits

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring galvanic isolation
• Solid-state relay driver circuits
• Microprocessor interface applications for noise immunity

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific manufacturer designation, as sources list both Vishay Semiconductor Opto Division and Vishay Siliconix. Confirm the package type matches the required PCB footprint, noting variations between standard DIP and surface mount options if applicable. Ensure the component meets RoHS compliance standards required for the target assembly process. Cross-reference the datasheet version to confirm electrical characteristics align with design specifications.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when dual-channel isolation is necessary within a compact form factor. The Photodarlington output offers high current gain suitable for driving loads directly. Evaluate the 5000 Vrms insulation rating against system safety requirements. Consider the -40°C to +100°C operating range for environmental suitability. Compare the 80 mA collector current limit with load requirements to ensure adequate headroom.

Transistor, Photovoltaic Output Optoisolators Part Context

The K825P belongs to the family of transistor output optocouplers produced by Vishay. It serves as a solution for electrically isolating low-voltage control signals from higher-voltage power stages. The dual-channel design allows for cost-effective implementation of isolated bidirectional or differential signaling interfaces in electronic systems.

Transistor, Photovoltaic Output Optoisolators FAQ

What is the maximum insulation voltage rating?

The K825P supports an insulation voltage of 5000 Vrms.

Does the K825P support surface mount technology?

The primary specification lists an 8-pin PDIP (through-hole) package, though other variants may exist.