A1458 Optocoupler | Datasheet

(Pin 8) and GND (Pin 5) pins to suppress high-frequency noise.

: Typically supports data rates up to 10–15 MBd .

Have you used the A1458 in a project? Share your experience or ask a question in the comments below. For more component deep dives, subscribe to our newsletter.

(minimum) immunity, protecting against high voltage transients in industrial environments. Guaranteed isolation (for 1 minute) ensures safe operation. Low Power Consumption: Operates at low current ( Wide Supply Voltage Range: Compatible with a1458 optocoupler datasheet

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.

The A1458 is a general-purpose, dual-channel phototransistor optocoupler (often manufactured by brands like Toshiba, Avago/Broadcom, or Lite-On, depending on the specific prefix variations like TLP1458 or HCPL-1458). It consists of two Gallium Arsenide (GaAs) infrared emitting diodes optically coupled to two monolithic silicon phototransistor detectors.

To safely use the A1458, you must correctly calculate the input current-limiting resistor ( Rincap R sub i n end-sub ) and the output pull-up resistor ( Rpullcap R sub p u l l end-sub Step 1: Calculate the Input Resistor ( Rincap R sub i n end-sub (Pin 8) and GND (Pin 5) pins to

: Standard 8-pin dual-inline package optimized for prototyping breadboards and rugged high-vibration power electronics hardware. Pinout Configuration and Functionality

When selecting an equivalent, pay close attention to the . An alternative like the HCPL-181 may not support the same high speeds as the HCPL-1458. According to a comparative analysis, "HCPL-1458 has higher CTR and shorter response time" compared to the base A1458, making it a superior choice for speed-sensitive applications.

Negative input terminal for the internal transmitter LED. Pin 4: No Internal Connection (NC). Share your experience or ask a question in

Interfaces 24V industrial sensor signals with 3.3V or 5V logic control boards.

user wants a long article about the "a1458 optocoupler datasheet". They likely need a comprehensive guide that includes technical specifications, pinout, applications, and how to read the datasheet. I need to gather information from multiple sources. I'll follow the search plan as outlined. search results show that "A1458" likely refers to the HCPL-A1458 or HCPL-1458 optocoupler. There are also results for a transistor (2SA1458), but that's different. I need to open the relevant pages to gather detailed information. search results provide information on the HCPL-A1458, HCPL-1458, and HCNW1458 optocouplers. I also found a detailed article comparing these models. I need to gather comprehensive information to write a long article. I'll search for more detailed datasheets and technical specifications. search results for "HCPL-A1458 datasheet pdf" and "HCPL-1458 datasheet" are not showing direct PDF links. I might need to open some of the result pages to see if they contain the datasheet or further links. The search for "HCNW1458 datasheet" shows some results that might contain PDFs. I'll open the relevant pages. opened pages provide some information but not full datasheets. The user likely needs a comprehensive guide. I will structure the article with an introduction, detailed specifications, pinout, applications, and how to read the datasheet. I'll also include information on equivalents and procurement. Now I will continue writing the article. search results have provided some technical specifications and application details. Now I need to write a comprehensive article. I will structure it with an introduction, a detailed specifications table, a pinout explanation, application examples, how to read the datasheet, equivalents and procurement, and a conclusion. I will cite the relevant sources. A1458 is a widely used series of high-performance optocouplers (photocouplers), known in the industry by several related model numbers including HCPL-1458, HCPL-A1458, and HCNW1458. These components are essential for galvanic isolation in modern electronics, transmitting electrical signals using light to ensure safety and signal integrity between different voltage domains.

: Unlike standard phototransistors, the A1458 uses an integrated photodetector and output transistor with separate connections for the photodiode bias and collector. This design reduces base-collector capacitance, allowing for speeds up to 100 times faster than conventional couplers.

This is the most basic and common application. A microcontroller (operating at 3.3V or 5V) sends a logic signal to the optocoupler's LED. The output transistor then drives a separate, isolated circuit, such as a high-voltage relay, motor driver, or industrial sensor.