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A1458 Optocoupler Datasheet Here

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

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A digital high signal (e.g., 5V from an Arduino or PLC) passes through a current-limiting resistor into Pin 1 (Anode). a1458 optocoupler datasheet

Do not run any copper traces, power planes, or ground planes underneath the optocoupler body between the input (Pins 1-4) and output (Pins 5-8) sides. Maintain a minimum creepage and clearance distance of at least 7mm to 8mm. Use Bypass Capacitors: Always place a ceramic bypass capacitor between Pin 8 ( VCCcap V sub cap C cap C end-sub ) and Pin 5 ( GNDcap G cap N cap D

Keep input signal traces (LED side) physically separated from the output signal traces (Detector side) to prevent parasitic coupling of noise. This link or copies made by others cannot be deleted

Understanding the exact absolute maximum ratings and electrical characteristics guarantees long-term component reliability. Below is the summary of technical specifications derived from the Avago/Broadcom HCPL-1458 technical data sheets : Specification Value Context / Conditions 1 Mb/s (Typical) High-speed logic switching Isolation Voltage ( VISOcap V sub cap I cap S cap O end-sub ) 3750 to 5300 VRMScap V sub cap R cap M cap S end-sub Per UL1577 standards (1 minute duration) Common Mode Rejection (CMR) 15 kV/µs to 50 kV/µs At high common-mode voltages ( VCMcap V sub cap C cap M end-sub Supply Voltage Range ( VCCcap V sub cap C cap C end-sub ) 4.5V to 15V (Wide VCCcap V sub cap C cap C end-sub architecture) Flexible dual-rail operational setups Supply Current ( ICCcap I sub cap C cap C end-sub ) 1.2 mA (Maximum) Optimized for low-power digital designs Propagation Delay Max ( ) 8 ns to 300 ns Highly configuration-dependent Output Type Open Collector / Push-Pull Dependent on the exact suffix variant Operating Temperature Range -40°C to +100°C Industrial or automotive environments Internal Architecture & Mechanical Packages

When you search for an , you may also encounter these competitors. Here’s how they stack up: Try again later

) : Digital output signal line. Open-collector variations require a discrete external pull-up resistor to match host microcontroller voltage domains. : No internal electrical connection. Pin 8 ( VCCcap V sub cap C cap C end-sub

The (frequently cross-referenced as the HCPL-1458 or HCPL-A1458 ) is a high-performance, single-channel, logic-gate optocoupler engineered by Broadcom (formerly Avago/Agilent) . This component provides exceptional electrical isolation, low power consumption, and fast signal transmission across an optical barrier. Circuit designers heavily rely on this specific device to isolate sensitive microcontrollers from high-voltage transients, manage ground loops, and eliminate electrical noise in industrial control environments.

While a full internal block diagram should be consulted from the official datasheet, the general pin functions are consistent across these packages.

Many A1458 variants carry UL 1577, VDE 0884 (reinforced insulation), and CSA approvals. Always check the specific datasheet for regulatory marks if your design requires safety certification.

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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

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.

A digital high signal (e.g., 5V from an Arduino or PLC) passes through a current-limiting resistor into Pin 1 (Anode).

Do not run any copper traces, power planes, or ground planes underneath the optocoupler body between the input (Pins 1-4) and output (Pins 5-8) sides. Maintain a minimum creepage and clearance distance of at least 7mm to 8mm. Use Bypass Capacitors: Always place a ceramic bypass capacitor between Pin 8 ( VCCcap V sub cap C cap C end-sub ) and Pin 5 ( GNDcap G cap N cap D

Keep input signal traces (LED side) physically separated from the output signal traces (Detector side) to prevent parasitic coupling of noise.

Understanding the exact absolute maximum ratings and electrical characteristics guarantees long-term component reliability. Below is the summary of technical specifications derived from the Avago/Broadcom HCPL-1458 technical data sheets : Specification Value Context / Conditions 1 Mb/s (Typical) High-speed logic switching Isolation Voltage ( VISOcap V sub cap I cap S cap O end-sub ) 3750 to 5300 VRMScap V sub cap R cap M cap S end-sub Per UL1577 standards (1 minute duration) Common Mode Rejection (CMR) 15 kV/µs to 50 kV/µs At high common-mode voltages ( VCMcap V sub cap C cap M end-sub Supply Voltage Range ( VCCcap V sub cap C cap C end-sub ) 4.5V to 15V (Wide VCCcap V sub cap C cap C end-sub architecture) Flexible dual-rail operational setups Supply Current ( ICCcap I sub cap C cap C end-sub ) 1.2 mA (Maximum) Optimized for low-power digital designs Propagation Delay Max ( ) 8 ns to 300 ns Highly configuration-dependent Output Type Open Collector / Push-Pull Dependent on the exact suffix variant Operating Temperature Range -40°C to +100°C Industrial or automotive environments Internal Architecture & Mechanical Packages

When you search for an , you may also encounter these competitors. Here’s how they stack up:

) : Digital output signal line. Open-collector variations require a discrete external pull-up resistor to match host microcontroller voltage domains. : No internal electrical connection. Pin 8 ( VCCcap V sub cap C cap C end-sub

The (frequently cross-referenced as the HCPL-1458 or HCPL-A1458 ) is a high-performance, single-channel, logic-gate optocoupler engineered by Broadcom (formerly Avago/Agilent) . This component provides exceptional electrical isolation, low power consumption, and fast signal transmission across an optical barrier. Circuit designers heavily rely on this specific device to isolate sensitive microcontrollers from high-voltage transients, manage ground loops, and eliminate electrical noise in industrial control environments.

While a full internal block diagram should be consulted from the official datasheet, the general pin functions are consistent across these packages.

Many A1458 variants carry UL 1577, VDE 0884 (reinforced insulation), and CSA approvals. Always check the specific datasheet for regulatory marks if your design requires safety certification.