1458 Optocoupler Datasheet [extra Quality] Jun 2026

The HCPL-1458 is known for its high-speed performance and robust isolation capabilities. Below are the typical parameters found in its datasheet:

The efficiency of the internal GaAs LED drops as operating temperatures rise. To counteract this, always design your circuit with extra margin (overdrive) for the input current.

Minimizes transient voltage spikes from causing false logic transitions. Pinout Configuration & Package Layout HCPL-1458, A1458, QCPL-1458 | AB Ind. Electronics www.ab-industrial-electronics.co.uk HCPL-1458 Avago | | Xecor

Daisy-Chained Control Outputs. The LTC®1458/LTC1458L are complete single supply, quad rail-to-rail voltage output, 12-bit digital- Analog Devices Single Channel, High Speed Optocouplers Technical Data 1458 optocoupler datasheet

: One of the most famous chips with this number. It is a dual version of the classic 741 operational amplifier, used for general-purpose analog signal processing. LTC1458 12-Bit DAC

Internal isolation spacer; must be left floating on the PCB layout.

Over years of continuous operation, the light output of the internal LED will gradually decrease. Designers typically factor in a 20% to 50% safety margin for high-reliability systems. 6. Primary Applications The HCPL-1458 is known for its high-speed performance

| Parameter | Symbol | Rating | Unit | | :--- | :---: | :---: | :---: | | | | | | | Forward Current | $I_F$ | 50 | mA | | Peak Forward Current | $I_FM$ | 1.0 | A | | Reverse Voltage | $V_R$ | 6 | V | | Output (Detector) | | | | | Collector-Emitter Voltage | $V_CEO$ | 35 - 80* | V | | Emitter-Collector Voltage | $V_ECO$ | 6 | V | | Collector Current | $I_C$ | 50 | mA | | Total Device | | | | | Isolation Voltage | $V_ISO$ | 5000 | Vrms | | Operating Temperature | $T_opr$ | -30 to +100 | °C | | Storage Temperature | $T_stg$ | -55 to +125 | °C |

: A similar high-speed optocoupler designed for digital logic grounding. A common 10 MBd high-speed optocoupler. The

In the world of electronics, isolation is paramount. Whether you are designing a switched-mode power supply (SMPS), a microcontroller interface for industrial machinery, or a safety circuit for a medical device, the need to separate high-voltage domains from low-voltage logic is non-negotiable. The unsung hero of this task is the (also known as an optoisolator). Minimizes transient voltage spikes from causing false logic

⚠️ : If you have a specific 1458 optocoupler from a known brand (e.g., Siemens SFH1458 or QT-Brightek QTLP1458), please refer to that manufacturer’s official datasheet, as parameters may differ significantly from the generic version above.

– The emitter terminal of the output phototransistor. Typically connected to the output ground in common-emitter configurations.

The HCPL-1458 integrates a high-efficiency Gallium Arsenide Phosphide (GaAsP) Light Emitting Diode (LED) on the input side. This LED is optically coupled to an integrated, high-gain, high-speed photodetector chip on the output side.

): Input power supply terminal supporting 3.0V to 5.5V rails.