H11L2S

Logic Output Optoisolators Overview

The onsemi H11L2S is a single-channel logic output optocoupler featuring an open collector phototransistor. It provides high-speed signal transmission with rise and fall times of 100 ns and a maximum data rate of 1 MBps. The device offers robust isolation with an insulation voltage of 4170 Vrms and a common-mode transient immunity (CMTI) of 5300 Vrms. It operates within a temperature range of -40°C to +85°C, dissipates up to 250 mW, and accepts a forward current of 30 mA at 1.2 V. Packaged in a compact SMD-6 surface-mount format, it supports continuous output currents up to 50 mA.

Logic Output Optoisolators Feature Summary

• Integrates a Schmitt trigger input for noise immunity and clean digital signal conversion
• Provides high-voltage electrical isolation between input and output circuits
• Features fast switching speeds suitable for high-frequency digital communication
• Delivers open-collector output configuration for flexible interfacing

Logic Output Optoisolators Applications

• Microcontroller interface circuits requiring galvanic isolation
• Industrial control systems for signal transmission across isolated domains
• Power supply feedback loops for voltage regulation monitoring
• Communication interfaces such as RS-232 or RS-485 isolators

Logic Output Optoisolators Procurement Notes

Verify the specific suffix against the official datasheet to confirm package type and tape/reel specifications. Ensure the procurement source is an authorized distributor to guarantee component authenticity and traceability. Confirm that the operating temperature range and isolation voltage ratings meet the specific design requirements before finalizing the order.

Logic Output Optoisolators Selection Notes

Select this component when high-speed digital isolation is required in a compact surface-mount footprint. The integrated Schmitt trigger makes it suitable for noisy environments where signal integrity is critical. Compare its CMTI rating against other optocouplers if the application involves high dv/dt switching nodes. Ensure the forward current limits are respected to maintain long-term reliability and consistent propagation delay characteristics.

Logic Output Optoisolators Part Context

This device belongs to the H11L2M series of logic output optocouplers from onsemi. It is designed to replace older through-hole variants in modern PCB layouts by offering a smaller SMD-6 package. The series is part of onsemi's standard product portfolio, focusing on reliable isolation solutions for industrial and consumer electronics applications.

Logic Output Optoisolators Replacement Considerations

Check for direct pin-compatible alternatives within the same family, such as the H11L2SM variant, which may offer different packaging options. Verify that any substitute maintains the same 1 MBps speed rating and 4170 Vrms isolation voltage to ensure circuit compatibility without redesign.