to protect sensitive MCUs from high-voltage spikes. Other common uses include: Isolated Line Receivers

Propagation delay measures how fast the optocoupler responds to a change in the input signal. For high-speed logic or communication lines, these metrics (measured in nanoseconds) are crucial to ensure your system timing is not compromised. Pinout and Circuit Configuration

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

: Rated for an isolation voltage of 5300 Vrms . Low Power Consumption : Maximum supply current ( ICCcap I sub cap C cap C end-sub

When dealing with sensitive electronics and high-voltage systems, maintaining safety and signal integrity is critical. This is where optocouplers (also known as opto-isolators) come in. By transmitting electrical signals using infrared light across an insulating gap, they bridge the communication gap between circuits without allowing dangerous electrical surges to pass through.

The 1458 optocoupler datasheet highlights several key features that make this device suitable for a wide range of applications. Some of the key features include:

. However, if you are strictly looking for an optocoupler, you are likely referring to the high-speed

The 1458 optocoupler is a high‑speed, transistor‑output device widely used for signal isolation in digital and low‑power analog circuits. Below is a concise yet comprehensive datasheet‑style summary.

Operating the device beyond these limits can cause permanent damage or severely degrade the isolation barrier over time. All ratings are measured at an ambient temperature ( TAcap T sub cap A ) of 25°C unless otherwise specified. Input LED Ratings 60 mA Peak Forward Current ( IF,pkcap I sub cap F comma p k end-sub ): 1.0 A (Pulse width , Duty cycle Reverse Voltage ( VRcap V sub cap R ): 6.0 V Power Dissipation ( PDcap P sub cap D ): 120 mW Output Phototransistor Ratings Collector-Emitter Voltage ( VCEOcap V sub cap C cap E cap O end-sub ): 30 V to 70 V (variant dependent) Emitter-Collector Voltage ( VECOcap V sub cap E cap C cap O end-sub ): 7.0 V Collector-Base Voltage ( VCBOcap V sub cap C cap B cap O end-sub ): 70 V Collector Current ( ICcap I sub cap C ): 100 mA (Continuous) Power Dissipation ( PDcap P sub cap D ): 150 mW Total Device Ratings Isolation Voltage ( VISOcap V sub cap I cap S cap O end-sub ): 5300 VRMScap V sub cap R cap M cap S end-sub VPKcap V sub cap P cap K end-sub (for 1 minute) Operating Temperature Range ( TOPRcap T sub cap O cap P cap R end-sub ): -55°C to +100°C Storage Temperature Range ( TSTGcap T sub cap S cap T cap G end-sub ): -55°C to +150°C Soldering Temperature: 260°C (for maximum 10 seconds) 4. Electrical Characteristics

The output stage is an open collector, providing flexibility in designing the output interface. HCPL-1458 Pinout and Functional Description