ISP321-2BL

Transistor, Photovoltaic Output Optoisolators Overview

The ISP321-2BL is a high-density mounting phototransistor optically coupled isolator manufactured by Isocom Components. It features a dual-channel configuration with separate elements housed in a surface-mount DIP-8 package. The device provides a maximum insulation voltage of 5300 Vrms and operates within a temperature range of -55 °C to 100 °C. Key electrical parameters include a minimum collector-emitter breakdown voltage of 35 V, a maximum forward current of 0.05 A, and a nominal current transfer ratio of 200%. It complies with UL recognition (File No. E91231) and VDE 0884 standards.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Dual-channel architecture for independent signal isolation
• High insulation voltage capability for safety separation
• Surface-mount packaging optimized for high-density applications
• Compliance with international safety approvals

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring galvanic isolation
• Signal transmission between microprocessors and logic circuits
• Power supply feedback loops for voltage regulation
• Solid-state relay driver interfaces

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific lead form variant required, as the ISP817/827/847 series documentation indicates availability in STD, G, or X forms which may affect mechanical fit. Confirm that the component meets RoHS compliance requirements for your assembly process. Ensure the supplier provides valid UL and VDE certification documents corresponding to the specific batch. Cross-reference the pinout against the official datasheet to prevent orientation errors during placement.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when dual-channel isolation is necessary within a compact footprint. The 5300 Vrms rating suits applications demanding robust barrier protection. Consider the 200% CTR for standard logic interfacing needs. Evaluate the thermal limits against the operating environment, noting the 100 °C maximum junction temperature. Compare against single-channel alternatives if only one isolated path is required to optimize board space.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the ISP817/ISP827/ISP847 family of high-density phototransistor optocouplers. These devices are designed for surface-mount technology (SMT) to facilitate automated assembly. The series shares common approval standards including UL and VDE, ensuring consistent safety performance across different channel counts and current transfer ratios within the product line.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes must match the DIP-8 SMT package, dual-channel configuration, and 5300 Vrms isolation rating. Verify that any replacement maintains the same pinout compatibility and meets the 35 V minimum breakdown voltage requirement. Check for equivalent UL and VDE certifications to ensure regulatory compliance continuity.