ISP817BLG

Transistor, Photovoltaic Output Optoisolators Overview

The ISP817BLG is a single-channel, through-hole optocoupler manufactured by Isocom Components. It features an infrared LED input and an NPN phototransistor output housed in a standard DIP-4 package. Key electrical specifications include a maximum forward voltage of 1.4V, a peak repetitive reverse voltage of 80V for the output, and a minimum isolation voltage of 5300 Vrms. The device supports a maximum DC input current of 50 mA and offers a typical current transfer ratio range of 200% to 600%. Operating temperatures span from -55°C to +100°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides high-density mounting with a compact four-pin DIP configuration suitable for space-constrained circuit designs.
• Ensures robust signal isolation between input and output circuits via a 5300 Vrms dielectric barrier.
• Delivers reliable switching performance with defined rise and fall times for digital logic interfacing.

Transistor, Photovoltaic Output Optoisolators Applications

• Logic-to-logic isolation in noisy industrial environments
• Line receiver circuits for data transmission
• Programmable current level sensing applications

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'BLG' against official Isocom documentation to confirm lead frame plating and tape-and-reel packaging details. Ensure compliance requirements such as UL recognition or VDE approval match the project specifications. Cross-reference the datasheet for exact mechanical dimensions and thermal characteristics before finalizing procurement.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a single-channel transistor output isolator is required with moderate speed capabilities. The NPN phototransistor output is suitable for sinking current in digital logic interfaces. Consider the 5300 Vrms isolation rating for safety-critical applications requiring strong galvanic separation between low-voltage control and high-voltage power sections.

Transistor, Photovoltaic Output Optoisolators Part Context

The ISP817 series represents Isocom's high-density phototransistor optocouplers designed as industry-standard replacements. These devices are widely used in commercial and industrial sectors where reliable optical isolation is necessary. The brand has over four decades of experience in producing optoelectronic components, ensuring consistent quality across their product lines.

Transistor, Photovoltaic Output Optoisolators FAQ

What is the maximum collector-emitter voltage for the ISP817BLG?

The maximum collector-emitter breakdown voltage (Vceo) is specified as 80V.

Does the ISP817BLG support AC input signals directly?

No, the ISP817BLG is designed for DC input. The internal infrared LED requires direct current to operate effectively.