1458 Optocoupler Datasheet Jun 2026

The 4N35 works, but only if I_F is properly chosen. The non-existent "1458 optocoupler" would require the same analysis.

Comprehensive Guide to the 1458 Optocoupler: Datasheet, Pinout, and Applications

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| Parameter | Symbol | Conditions | Min | Typ | Max | Unit | | :--- | :---: | :--- | :---: | :---: | :---: | :---: | | | | | | | | | | Forward Voltage | $V_F$ | $I_F = 20 \text mA$ | - | 1.2 | 1.4 | V | | Reverse Current | $I_R$ | $V_R = 4 \text V$ | - | - | 10 | $\mu A$ | | Output | | | | | | | | Collector Dark Current | $I_CEO$ | $V_CE = 20 \text V$ | - | - | 100 | nA | | Transfer Characteristics | | | | | | | | Current Transfer Ratio | CTR | $I_F = 5 \text mA, V_CE=5\textV$ | 50* | - | - | % | | Saturation Voltage | $V_CE(sat)$ | $I_F = 20 \text mA, I_C=1\textmA$ | - | 0.1 | 0.2 | V | | Switching Times | | | | | | | | Rise Time | $t_r$ | $V_CC=5\textV, I_C=2\textmA$ | - | 4 | 18 | $\mu s$ | | Fall Time | $t_f$ | $R_L=100 \Omega$ | - | 3 | 18 | $\mu s$ | 1458 optocoupler datasheet

R1=VCC1−VFIFcap R sub 1 equals the fraction with numerator cap V sub cap C cap C 1 end-sub minus cap V sub cap F and denominator cap I sub cap F end-fraction (typical diode forward drop), and target

The is a high-performance part. However, because components occasionally go out of production or face supply constraints, designers sometimes need alternatives.

In the electronics industry, the number is most famously associated with a Dual Operational Amplifier (like the MC1458 or LM1458). These are analog chips, not optocouplers. They have 8 pins and look identical to an optocoupler IC, but they function completely differently. The 4N35 works, but only if I_F is properly chosen

When searching for a "1458 optocoupler datasheet," you're most likely looking for information on a device from a family of high-speed optocouplers. The core part number is usually , though variations exist like HCNW1458 and HCPL-A1458 . These components are designed to provide reliable electrical isolation between different parts of a circuit while allowing data transmission at high speeds.

with other , or were you specifically looking for the MC1458 Op-Amp Go to product viewer dialog for this item. details? LTC1458 Datasheet and Product Info - Analog Devices

Protecting low-voltage components in industrial equipment. The keyword "1458 optocoupler datasheet" suggests they are

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Features a propagation delay of approximately 35 ns, making it suitable for fast digital logic. Wide Supply Voltage ( cap V sub cap C cap C end-sub Operates across a range of 3.0V to 5.5V