ILQ620GB

Transistor, Photovoltaic Output Optoisolators Overview

The ILQ620GB is a quad-channel phototransistor optocoupler manufactured by Vishay Semiconductor Opto Division. It features an inverse parallel GaAs IR LED emitter and high-gain NPN phototransistors. The device provides robust electrical isolation with a withstand test voltage of 5300 VRMS, achieved through over/under leadframe optical coupling and double molded insulation. Key electrical parameters include a minimum current transfer ratio (CTR) of 100% and a maximum CTR of 600%. The forward voltage is 1.3 V at a maximum forward current of 60 mA. The output can handle a maximum collector-emitter voltage of 70 V and a maximum collector current of 100 mA. Switching characteristics include a rise time of 2.8 µs and a fall time of 11 µs. Power dissipation is rated at 500 mW, with an operating temperature range from -55°C to +100°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Quad-channel configuration utilizing inverse parallel GaAs IR LED emitters for enhanced performance.
• High isolation capability with a 5300 VRMS withstand test voltage via double molded insulation.
• High gain NPN phototransistor outputs ensuring reliable signal transmission across isolation barriers.

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial automation control systems requiring multi-channel isolation
• Communication interfaces needing galvanic separation between circuits
• Power supply feedback loops for voltage monitoring and regulation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific package variant required, as the ILQ620GB series includes both surface mount (SMD-16) and through-hole (PDIP-16) options. Confirm that the selected component meets the necessary isolation voltage standards for the target application environment. Ensure compatibility with the system's thermal management requirements given the specified power dissipation limits. Check for any specific ordering suffixes that may denote tape-and-reel packaging versus tube quantities if automated assembly is planned.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select the ILQ620GB when multiple isolated channels are needed within a single compact footprint. The high CTR range supports diverse input current levels while maintaining output saturation. Consider the switching speed limitations for high-frequency applications, as the fall time is relatively slow compared to faster logic-level optocouplers. Ensure the PCB layout accommodates the creepage and clearance distances mandated by the 5300 VRMS isolation rating to maintain safety compliance.

Transistor, Photovoltaic Output Optoisolators Part Context

The ILQ620GB belongs to Vishay's ILQ series of multi-channel optocouplers. This family is designed for applications requiring simultaneous isolation of multiple signal paths. The device shares architectural similarities with other quad-channel variants but is distinguished by its specific pinout and package dimensions. It complements Vishay's broader portfolio of isolation components used in industrial and commercial electronics.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct replacements must match the quad-channel topology, 16-pin package, and 5300 VRMS isolation rating. Verify that substitute components offer comparable CTR ranges and switching speeds. Cross-reference pinouts carefully, as internal channel arrangements may differ between manufacturers or even within different packages of the same part number.