PS2505-2

Overview

The PS2505-2 is a dual-channel transistor output optocoupler manufactured by Isocom Components. It features an infrared LED paired with two NPN silicon phototransistors within a single package. The device provides high isolation voltage of 5000Vrms between input and output circuits. Key electrical parameters include a collector-emitter saturation voltage of 300mV maximum, a forward current of 80mA maximum, and a typical rise/fall time of 3µs/5µs. The component operates within a temperature range of -55°C to 100°C and is available in an 8-DIP package.

Feature Summary

• Dual-channel configuration for simultaneous signal isolation
• High isolation voltage capability for circuit protection
• Fast switching speed suitable for digital applications
• Wide operating temperature range for industrial environments

Applications

• Industrial control systems requiring signal isolation
• Power supply unit feedback loops
• Solid-state relay driver circuits
• Microcontroller interface isolation

Procurement Notes

Verify the specific suffix designation (e.g., -A) against the required datasheet specifications, as variations may exist regarding current transfer ratio or packaging. Confirm that the manufacturer status aligns with project lifecycle requirements, noting that some variants may be marked obsolete or not recommended for new designs. Ensure the selected part matches the exact pinout and isolation voltage ratings needed for the target application safety standards.

Selection Notes

Select this component when dual-channel isolation is required within a standard DIP footprint. Consider the CTR range and saturation voltage for driving subsequent logic stages. Verify compatibility with the system's voltage levels and switching frequency requirements. Ensure the thermal management plan supports the specified operating temperature range under expected load conditions.

Part Context

This part belongs to the PS2505 series of optocouplers, designed for general-purpose isolation tasks. The series typically includes variants with different channel counts and output types. Isocom Components positions these devices as replacements for legacy parts from other manufacturers, offering comparable performance in terms of isolation and switching characteristics.

Replacement Considerations

Direct substitutes may include equivalent dual-channel transistor output optocouplers from other manufacturers such as Renesas or CEL, provided they match the 8-DIP package, 5000Vrms isolation, and similar electrical parameters. Always verify pin compatibility and CTR specifications before substitution.