, which is not an optocoupler. However, if you are looking for an optocoupler with a similar designation, the Go to product viewer dialog for this item.
A common use case for the 1458 optocoupler is isolating a 3.3V or 5V MCU from a noisy industrial subsystem (like a 12V or 24V relay control matrix).
Note: The 1458 features faster response times than standard phototransistor optocouplers, making it suitable for low-to-medium speed data transmission (up to 1-2 MBd). Common-Mode Rejection (CMR) 10,000
If you are looking for specific or price availability from distributors like Broadcom or Utsource , let me know. LM1458/LM1558 Dual Operational Amplifier datasheet (Rev. D)
To fully leverage the high isolation capabilities of the 1458 optocoupler, strict adherence to PCB safety layout practices is required:
Due to its combination of fast response times and low power dissipation, the 1458 optocoupler series serves as a critical bridge in several topologies: Single Channel, High Speed Optocouplers Technical Data
| Parameter | Symbol | Typical Value (4N35) | | :--- | :--- | :--- | | Forward Current (LED side) | IF | 60 mA | | Reverse Voltage (LED) | VR | 6 V | | Collector-Emitter Voltage | VCEO | 30 V | | Emitter-Collector Voltage | VECO | 7 V | | Power Dissipation (Output) | PC | 150 mW | | Operating Temperature | TOPR | -55°C to +100°C |
provided by manufacturers like Broadcom (formerly Avago/Agilent). Heisener Electronics or a specific circuit example for this component? MC1458 - STMicroelectronics
A 3.3V GPIO cannot drive a 24V industrial PLC input. Use an optocoupler:
If one mistakenly searches for "1458 optocoupler," the correct workflow is: