ISP621-2SMT&R

Transistor, Photovoltaic Output Optoisolators Overview

The ISP621-2SMT&R is a surface-mount optically coupled isolator manufactured by Isocom Components. It integrates an infrared LED with dual NPN silicon phototransistors in a compact package. Key electrical parameters include a minimum current transfer ratio of 50%, an isolation voltage of 5.3 kVrms, and a collector-emitter breakdown voltage of 55 V. The device supports a maximum forward input current of 50 mA and features a typical rise time of 2 µs. It is designed for high-density mounting applications requiring reliable signal transmission between systems with different potentials.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Dual-channel configuration integrating two independent NPN phototransistor outputs within a single unit
• High isolation capability rated at 5.3 kVrms to ensure safety between input and output circuits
• Surface-mount construction optimized for automated assembly and space-constrained PCB layouts

Transistor, Photovoltaic Output Optoisolators Applications

• Computer terminals
• Industrial system controllers
• Measuring instruments
• Signal transmission between systems of different potentials and impedances

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix SMT&R confirms tape-and-reel packaging requirements for your manufacturing line. Confirm that the dual-channel variant matches your circuit design needs compared to single or quad versions. Ensure the 5.3 kVrms isolation rating meets your safety compliance standards. Check lead spread dimensions if using standard DIP footprints. Validate temperature range specifications against your operational environment.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when dual-channel isolation is required in a small form factor. The NPN phototransistor output suits general switching applications. Consider the 50% minimum CTR for logic interface designs. The surface-mount option facilitates high-volume production. Verify compatibility with existing PCB silkscreen and footprint libraries before finalizing the bill of materials.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the TLP621 series family, which includes variants like TLP621, TLP621-2, and TLP621-4. The 'ISP' prefix indicates Isocom's specific branding for these optocouplers. The '2' denotes the dual-channel configuration. This series is widely used as a replacement for legacy Toshiba components in industrial and consumer electronics.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes include TLP621-2, PC817-2, and SFH628A-2. Verify pinout compatibility and electrical parameter overlaps such as CTR and isolation voltage before swapping.