ISP281B

Transistor, Photovoltaic Output Optoisolators Overview

The ISP281B is a single-channel optoisolator manufactured by Isocom Components 2004 LTD, featuring a transistor output configuration. It provides an isolation voltage of 3750Vrms and operates within a temperature range of -55°C to 110°C. The device utilizes a 4-SOP (Surface Mount) package with a width of 4.40mm. Key electrical parameters include a maximum collector-emitter voltage of 80V, a DC forward current limit of 60mA, and a typical forward voltage of 1.2V. The output can handle up to 50mA per channel, with a saturation voltage drop of 200mV maximum. The current transfer ratio ranges from 50% to 600% at a forward current of 10mA, with typical rise and fall times of 5µs and 3µs respectively.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides high-voltage galvanic isolation between input and output circuits using infrared technology.
• Features a compact surface-mount 4-SOP package suitable for automated assembly processes.
• Delivers fast switching performance with low propagation delays for signal transmission.
• Operates reliably across a wide industrial temperature range without degradation.

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring signal isolation
• Power supply protection circuits
• Smart metering applications

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'B' against official datasheets to confirm pinout and parameter variations compared to standard IS281 variants. Ensure compatibility with SOP-4 footprint dimensions during PCB layout. Confirm RoHS3 compliance status for environmental regulations. Check moisture sensitivity level requirements for storage and reflow soldering profiles prior to procurement.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a single-channel transistor output isolator is required with 3750Vrms isolation capability. Consider the 4-SOP package size for space-constrained designs. Evaluate the 50mA output current capacity against load requirements. Verify that the operating temperature range meets the environmental conditions of the target application.

Transistor, Photovoltaic Output Optoisolators Part Context

Isocom Components 2004 LTD specializes in infrared optoelectronic devices, leveraging over 40 years of industry expertise. The company originated from Litronix management and engineering teams, establishing itself as a trusted supplier of commercial and specialized optocouplers. The ISP281B represents their commitment to providing reliable isolation solutions for various electronic applications.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes may include other single-channel transistor output optocouplers with similar 3750Vrms isolation and SOP-4 packaging. Verify equivalent electrical characteristics such as CTR, Vceo, and switching speeds before substitution. Ensure pin compatibility and thermal performance match the original design requirements.