PVO402P Overview
The PVO402P is an optically isolated solid-state relay designed for robust switching applications in industrial control and automation systems. Featuring a compact DIP-6 package and a 400V blocking voltage, it enables safe and reliable operation in demanding environments. This component is engineered for designers needing dependable isolation, low power consumption, and effective signal transfer between control circuitry and load. With its high isolation voltage and zero-voltage turn-on, the relay is an optimal solution for reducing electrical noise and ensuring system integrity. For more information, visit IC Manufacturer.
PVO402P Technical Specifications
| Parameter | Value |
|---|---|
| Package Type | DIP-6 |
| Output Type | Solid State Relay |
| Blocking Voltage (VDRM) | 400 V |
| Load Current (ILOAD) | 100 mA |
| Input Control Voltage | 1.2 V (typ.) |
| Isolation Voltage | 3750 Vrms |
| Turn-On/Off Time | 0.5 ms / 0.5 ms (typ.) |
| Zero Voltage Turn-On | Yes |
| Operating Temperature Range | -40??C to +85??C |
PVO402P Key Features
- Optical isolation up to 3750 Vrms ensures high safety and signal integrity, protecting sensitive control electronics from voltage transients.
- Zero voltage turn-on functionality minimizes electrical noise and extends the lifespan of both relay and load.
- Low input drive requirements enable direct interfacing with microcontrollers or logic level circuits, boosting system integration and design flexibility.
- Fast switching times (0.5 ms typical) allow for precise control in timing-critical applications.
PVO402P Advantages vs Typical Alternatives
The PVO402P stands out among solid-state relays by offering high blocking voltage, robust optical isolation, and precise zero-cross switching. These related function words translate to reduced electromagnetic interference, greater safety margins, and longer operational life compared to standard mechanical or non-isolated solid-state solutions, making it ideal for demanding industrial systems.
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Typical Applications
- Industrial process control circuits requiring safe and precise switching between low-voltage logic and high-voltage loads, such as programmable logic controllers (PLCs) and motor drives.
- Signal isolation in automation equipment, where galvanic separation between control and power domains is essential for system safety and reliability.
- Solid-state power switching in instrumentation and test equipment, providing silent, wear-free operation with minimal maintenance needs.
- Building automation systems for switching HVAC loads, lighting, or security devices, benefitting from low power consumption and long-term dependability.
PVO402P Brand Info
The PVO402P is part of a family of optically isolated solid-state relays engineered for industrial-grade reliability and performance. This model is tailored for users needing robust isolation, compact footprint, and consistent switching in both new designs and equipment upgrades. It reflects a commitment to quality and innovation, helping engineers and OEMs meet stringent safety and integration requirements across diverse industrial sectors.
FAQ
What type of load can the PVO402P control?
This relay is suitable for controlling AC or DC loads up to 100 mA and with blocking voltages up to 400V. It is ideal for low-to-medium power switching in automation, instrumentation, and process control environments where electrical isolation is critical.
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How does the optical isolation benefit system design?
Optical isolation up to 3750 Vrms ensures that high voltages on the load side do not affect the low-voltage control circuitry. This significantly reduces the risk of damage from voltage spikes and enhances safety for both equipment and personnel.
What is the advantage of zero voltage turn-on in the PVO402P?
Zero voltage turn-on means the relay switches the load only when the AC voltage crosses zero, reducing inrush current, minimizing EMI, and extending the operational life of both the relay and connected load. This is especially important in noise-sensitive environments.
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Can the PVO402P be driven directly from microcontrollers?
Yes, the relay features a low input control voltage (typically around 1.2V), allowing for direct interfacing with microcontrollers, logic circuits, or low-power drivers without additional interface components. This streamlines board design and reduces component count.
In what environments is the PVO402P most effective?
The relay performs reliably in a wide temperature range from -40??C to +85??C, making it suitable for diverse industrial, commercial, and automation settings. Its DIP-6 package also supports straightforward integration into existing or new PCB layouts.



