is a high-performance, high-speed optocoupler designed to provide reliable electrical isolation for high-frequency signal transmission. It is frequently used in industrial and power electronics to protect sensitive low-voltage components, like microcontrollers, from high-voltage spikes and noise. Key Technical Specifications
Ensuring patient safety by isolating high-voltage power stages from sensitive diagnostic circuitry.
You can find technical specifications on distributor sites like Alldatasheet or the manufacturer’s product page . 2. Other Components with "1458"
is optimized for speed and stability across a wide range of operating conditions Operating Voltage ( cap V sub cap C cap C end-sub 1458 optocoupler datasheet
For the purpose of this guide, we will analyze the specifications typical of a standard transistor-output optocoupler that carries a 1458-style marking.
Propagation delay measures how fast the optocoupler responds to a change in the input signal. For high-speed logic or communication lines, these metrics (measured in nanoseconds) are crucial to ensure your system timing is not compromised. Pinout and Circuit Configuration
By the end of this guide, you will know exactly how to find, read, and apply the correct datasheet for your isolation needs. You can find technical specifications on distributor sites
The negative terminal of the input LED, typically driven via a current-limiting resistor.
The 1458 optocoupler, also known as the PC817 or 817 optocoupler, is a popular optoelectronic device used for electrical isolation and signal transfer between two circuits. This report provides an in-depth analysis of the 1458 optocoupler datasheet, highlighting its key features, specifications, and applications.
Are you looking to replace an , or designing a circuit for a specific communication protocol like SPI or RS-485? Let me know, and I can help calculate the exact resistor values for your design. Single Channel, High Speed Optocouplers Technical Data Propagation delay measures how fast the optocoupler responds
Ensure the shortest path along the surface of the PCB insulation between the primary and secondary copper pads meets target safety certifications (typically for reinforced industrial insulation).
Commonly found in DIP-8, DIP-16, or SOP-8 packages, sometimes with hermetic sealing for military or aerospace use.
The following appendix provides additional information on the 1458 optocoupler datasheet:
The 1458 optocoupler is widely used in a variety of applications where high voltage insulation and efficient signal transfer are required. Some of the common applications include: