APS1241S

Overview

The APS1241S is a single-channel optocoupler featuring an AlGaAs LED input and a PhotoIC output. It supports a data rate of 20 Mbps with propagation delays of 55 ns (max). The device offers 3750 Vrms isolation voltage and operates within a temperature range of -40°C to +105°C. Key electrical parameters include a forward current of 25 mA, reverse voltage of 5 V, and power dissipation of 40 mW. Rise and fall times are specified at 2 ns each. The component is housed in a compact SOP-5 package measuring 4.4x4.3x2.1 mm.

Feature Summary

• High-speed digital signal transmission capability up to 20 Mbps
• Integrated PhotoIC output for low propagation delay
• Robust insulation voltage rating for safety isolation
• Wide operating temperature range suitable for industrial environments

Applications

• Industrial automation control systems
• Communication interface isolation
• Microprocessor system isolation
• Signal transmission in noisy electrical environments

Procurement Notes

Verify the specific ordering suffix and packaging configuration directly with Panasonic or authorized distributors. Confirm RoHS compliance status and check the lifecycle status, as this part may be marked as Not Recommended for New Designs (NRND). Ensure the supplier provides valid traceability documentation and original manufacturer certification before purchase.

Selection Notes

Select this component when high-speed digital isolation is required between circuits. The 20 Mbps data rate and low propagation delay make it suitable for fast communication protocols. Consider the 3750 Vrms isolation barrier for safety-critical applications. Verify that the SOP-5 surface mount package fits the available PCB space and thermal requirements.

Part Context

This device belongs to the APS1 series of optocouplers from Panasonic Electric Works. The series focuses on providing reliable isolation with integrated logic outputs. The APS1241S specifically utilizes an AlGaAs LED for efficient light emission and a PhotoIC for rapid response, distinguishing it from slower transistor-output variants.

Replacement Considerations

Check Panasonic's official replacement guide for direct substitutes. Verify pinout compatibility and electrical parameter equivalence if considering alternative brands. Ensure the replacement maintains the same isolation voltage and data rate specifications.