ILQ621-X009T

Transistor, Photovoltaic Output Optoisolators Overview

The ILQ621-X009T is a quad-channel phototransistor optocoupler manufactured by Vishay Semiconductor Opto Division. It utilizes GaAs infrared LED emitters paired with high-gain NPN silicon phototransistors to provide electrical isolation. The device features a 5300 Vrms insulation voltage and operates within a temperature range of -55°C to +100°C. It supports a maximum forward current of 60 mA and offers a typical rise time of 2.8 µs. The component is housed in a 16-pin PDIP package, designed for surface or through-hole mounting applications requiring multi-channel signal transmission.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates four independent channels using GaAs IRLED emitters and high-gain NPN silicon phototransistors
• Provides robust electrical isolation with a 5300 Vrms insulation voltage rating
• Supports wide operating temperature ranges from -55°C to +100°C

Transistor, Photovoltaic Output Optoisolators Applications

• Multi-channel industrial control systems
• Signal isolation in measurement equipment
• Data transmission interfaces requiring galvanic isolation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the obsolete status and end-of-life (EOL) designation before procurement planning. Confirm availability through authorized distributors as standard stock may be limited. Ensure compliance with RoHS requirements specified in the datasheet. Validate that the 16-pin PDIP package matches the target PCB footprint and assembly constraints.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when multiple isolated channels are required in a single package. The GaAs emitter technology ensures reliable performance compared to standard IR LEDs. Consider the 5300 Vrms isolation level for high-voltage separation needs. Verify that the 60 mA forward current capability meets the drive requirements of the application circuit.

Transistor, Photovoltaic Output Optoisolators Part Context

The ILQ621 belongs to Vishay's ILQ series of multi-channel optocouplers. It shares architectural similarities with the ILD621 but differs in channel count and packaging. The X009T suffix typically denotes specific tape-and-reel packaging configurations. This part complements Vishay's broader portfolio of single and dual-channel isolation devices.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, direct replacements should be evaluated based on pin compatibility and electrical specifications. Consult Vishay technical support for recommended alternatives.