1458 Optocoupler Datasheet __top__ < Popular – 2027 >
Industrial surroundings generate severe electromagnetic interference (EMI) and fast-switching voltage transients (
[ CTR = \fracI_CI_F \times 100% ]
| Application | Recommended Part | Key Feature | |-------------|------------------|--------------| | General purpose, low speed | 4N35, PC817 | Cheap, CTR ≥ 100% | | High CTR (> 500%) | CNY17-4 | Can be driven from µA currents | | High speed (1 Mbit/s) | 6N137 | Logic output, t_pd < 100 ns | | Dual channel, high voltage | HCPL-2531 | Two independent optocouplers | | Zero-crossing SSR trigger | MOC3063 | Triac driver output |
for standard TTL compatibility, with absolute limits scaling to : Maximum rating of continuous tracking capacity.
Designed with an integrated shield that delivers superior common-mode rejection, protecting signal integrity in electrically noisy environments. 1458 optocoupler datasheet
The following specifications represent the typical characteristics of the (and similar 4-pin DIP optocouplers like the PC817, which shares a nearly identical footprint and application).
: Isolation in solar inverters and wind turbine controllers. Important Note on the "1458" Part Number
) is approximately , making it suitable for power-sensitive designs.
The component is primarily housed in a standard package or a hermetic DIP-8 variant for high-reliability systems. The layout minimizes cross-talk while separating the input (emitter) and output (detector) pins: Pin Number Description Pin 1 Input LED Positive Terminal Pin 2 Input LED Negative Terminal Pin 3 No Connection (internal isolation space) Pin 4 No Connection or optional photodetector base Pin 5 Ground connection for the output stage detector Pin 6 VOUTcap V sub cap O cap U cap T end-sub : Isolation in solar inverters and wind turbine controllers
An infrared LED that converts an electrical signal into light. Output Side:
Positive terminal of the input Gallium Arsenide Phosphide (GaAsP) LED. Pin 2 (Cathode): Negative terminal of the input LED.
The is a specialized, hermetically sealed, high-speed optocoupler designed to provide robust electrical isolation between low-voltage control circuits and high-voltage power components. Originally engineered by Avago Technologies (now Broadcom) and historically associated with Agilent, this component combines a gallium arsenide phosphide (GaAsP) Light Emitting Diode (LED) with an integrated, high-gain photodetector in an industry-standard package.
A photosensitive integrated photodetector (often a phototransistor or logic gate) that detects the light and converts it back into an electrical signal. The layout minimizes cross-talk while separating the input
Optocouplers (also known as opto-isolators) are fundamental to modern power electronics and industrial automation. The 1458 device is housed in a standard , though surface-mount (SMD) variants are available for high-density circuit boards. Internal Functional Blocks
Emitter terminal of the Channel 1 phototransistor.
The 1458 optocoupler datasheet provides a comprehensive overview of the device's features, specifications, and applications. By understanding the device's performance and characteristics, designers and engineers can develop applications that utilize the 1458 optocoupler to provide high voltage insulation and efficient signal transfer. Whether you're designing a power supply, motor control circuit, or industrial automation system, the 1458 optocoupler datasheet is an essential resource that can help you get the job done.
The robust features of the 1458 optocoupler family make them versatile across many industries. A few common applications include:
If you need to narrow down your design specifications, tell me: The (e.g., ILD1458, MOC series) if known.