ISP521-1GBG

Transistor, Photovoltaic Output Optoisolators Overview

The ISP521-1GBG is a single-channel phototransistor optocoupler manufactured by Isocom Components. It integrates an infrared emitting diode with an NPN silicon phototransistor in a DIP-4 package. Key electrical parameters include a maximum isolation voltage of 5300Vrms, a collector-emitter breakdown voltage of 55V, and a typical current transfer ratio of 100%. The device operates within a temperature range of -30°C to +100°C, supports a maximum forward current of 50mA, and features a typical rise time of 4μs and fall time of 3μs.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides high-density mounting capability through compact DIP-4 packaging
• Ensures robust electrical isolation between input and output circuits
• Delivers fast switching performance suitable for digital signal transmission

Transistor, Photovoltaic Output Optoisolators Applications

• Logic-to-logic isolation in noisy industrial environments
• Power supply feedback control circuits
• Computer peripheral interface connections

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'GBG' against official Isocom documentation to confirm lead-free status and RoHS compliance. Ensure the ordering code matches the required DIP-4 pin configuration and thermal specifications. Cross-reference datasheet revisions to confirm parameter consistency before finalizing procurement orders.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when space-constrained designs require standard transistor output isolation. Consider the 5300Vrms isolation rating for safety-critical applications. Evaluate the 100% CTR nominal value against load requirements to ensure adequate drive capability without excessive input current.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the ISP521 series, which serves as a high-density alternative to industry-standard TLP521 devices. Isocom Components manufactures these isolators to meet global safety certifications including UL and VDE. The series is designed for commercial applications requiring reliable optical coupling in minimal footprint packages.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct replacements include TLP521-1, TLP521-1GB, and ISP521-1. Verify pinout compatibility and electrical parameter tolerances such as CTR and isolation voltage before substituting.