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PS2502-3 from NEC

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PS2502-3

Manufacturer: NEC

Multi photo coupler. High isolation voltage. Darlington transistor type.

Partnumber Manufacturer Quantity Availability
PS2502-3,PS25023 NEC 178 In Stock

Description and Introduction

Multi photo coupler. High isolation voltage. Darlington transistor type. The **PS2502-3** is a high-performance optocoupler designed to provide reliable electrical isolation between input and output circuits. As a member of the photocoupler family, it integrates a gallium arsenide infrared LED optically coupled with a high-speed phototransistor, ensuring efficient signal transmission while maintaining galvanic isolation.  

This component is widely used in industrial control systems, power supply monitoring, and communication interfaces where voltage isolation is critical. With a typical isolation voltage of 5,000 Vrms, the PS2502-3 enhances safety by preventing high-voltage transients from damaging sensitive circuitry. Its compact DIP-4 package makes it suitable for space-constrained applications.  

Key features include a fast response time, low power consumption, and stable performance across a wide temperature range. The PS2502-3 is compatible with various logic levels, making it versatile for digital and analog signal isolation. Additionally, its high common-mode rejection ensures minimal noise interference, improving signal integrity in electrically noisy environments.  

Engineers favor the PS2502-3 for its durability and compliance with international safety standards, making it a trusted choice for applications requiring robust isolation solutions. Whether in motor drives, medical equipment, or automation systems, this optocoupler delivers consistent performance under demanding conditions.

Application Scenarios & Design Considerations

Multi photo coupler. High isolation voltage. Darlington transistor type.

Alternative Part Number

  • PC3H7 --: Optocoupler with similar Darlington transistor output and CTR characteristics, commonly used as a direct substitute for NEC PS2502 series in many designs.
  • TLP521-2 --: Widely available general-purpose optocoupler with comparable isolation voltage and output configuration, suitable replacement when channel count and CTR are acceptable.
  • LTV-352 --: Darlington output optocoupler offering similar current transfer ratio and isolation ratings, a cost-effective alternative to the NEC PS2502-3.
  • PC3H7 --: Optocoupler with similar Darlington output and CTR characteristics, widely used as a direct substitute for NEC PS2502 series in many designs.
  • TLP521-2 --: General-purpose optocoupler with comparable isolation voltage and current transfer ratio, commonly cross-referenced for PS2502 multi-channel applications.
  • LTV-827 --: Dual-channel optocoupler offering similar CTR and isolation ratings, a cost-effective alternative for PS2502-3 designs.

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