A1458 Optocoupler Datasheet -

The photodetector senses the light and generates electron-hole pairs, allowing current to flow through the collector-emitter junction. This changes the voltage status on the output pin, effectively replicating the input signal without an electrical link. Key Applications

The is likely a standard DIP-4 phototransistor optocoupler with medium speed (10 µs) and 3.75kV isolation. Before purchasing:

The A1458 is known by several manufacturer-specific codes, predominantly from : a1458 optocoupler datasheet

The A1458 is characterized by its speed and high noise immunity. Below are the primary technical parameters found in the HCPL-1458 datasheet Maximum Data Rate , making it suitable for high-speed digital communication. Propagation Delay : Approximately (typical), ensuring fast signal response times. Isolation Voltage : Rated at (standard) or up to depending on the specific variant/package. Common Mode Rejection (CMR) : Minimum of

For SMD versions, the profile may be as low as 2.0 mm, suitable for compact designs. Before purchasing: The A1458 is known by several

Pro Tip: CTR degrades over time and with heat. Always design your circuit with a safety margin.

) is a high-speed, single-channel optocoupler designed for isolation in high-performance switching applications. It is typically manufactured by Broadcom (formerly Avago Technologies). Isolation Voltage : Rated at (standard) or up

Digital logic transitions power an internal infrared LED. This emitted light crosses a physically isolated air gap or glass barrier inside the chip, completely preventing raw current from crossing between the input and output networks.

If the exact A1458 model is unavailable, the following alternatives can be considered, but verify pin-to-pin compatibility via their respective datasheets: