ASSR-3211-501E Overview
The ASSR-3211-501E is a high-performance solid-state relay designed for industrial applications requiring precise electrical isolation and reliable switching. It features an integrated zero-crossing detection function, enabling noise reduction and improved load handling for AC signals. This device supports input voltages compatible with standard control circuits and offers a compact footprint suitable for dense PCB layouts. Engineered with robust insulation capabilities and low leakage current, it ensures safety and longevity in demanding environments. For detailed technical support and procurement, visit the IC Manufacturer website.
ASSR-3211-501E Technical Specifications
| Parameter | Specification |
|---|---|
| Input LED Forward Current | 10 mA (typical) |
| Output Load Voltage | 240 VAC max |
| Output Current | 1 A (max) |
| Isolation Voltage (Input to Output) | 3750 Vrms |
| Zero Cross Function | Integrated |
| Operating Temperature Range | -40 to +100 ??C |
| Output Type | Phototriac Output |
| Switching Time (Turn-on/off) | 1.5 ms / 1.5 ms (typical) |
| Input-Output Capacitance | 0.6 pF (typical) |
ASSR-3211-501E Key Features
- Integrated Zero-Cross Detection: Ensures switching occurs at the zero voltage crossing point, reducing electrical noise and transient surges, which enhances device longevity and load safety.
- High Isolation Voltage: Provides 3750 Vrms galvanic isolation between input and output, critical for protecting low-voltage control circuits from high-voltage loads.
- Compact and Surface Mount Package: Allows for efficient PCB space utilization, facilitating high-density designs without compromising performance.
- Low Input Current Requirement: Compatible with standard logic-level control signals, minimizing power consumption in system control circuits.
- Phototriac Output: Supports AC load switching with minimal leakage current, ensuring reliable operation in various industrial environments.
ASSR-3211-501E Advantages vs Typical Alternatives
This device offers superior isolation voltage and integrated zero-cross detection compared to many conventional solid-state relays. Its low input current requirement enhances energy efficiency, while the phototriac output design provides reliable AC load switching with minimal electrical noise. These features make it preferable for industrial control applications where safety, reliability, and compact integration are paramount.
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Typical Applications
- Industrial automation systems requiring isolation between control logic and high-voltage AC loads, ensuring safe and noise-free switching operations.
- Power supply switching in household appliances where silent operation and long service life are essential.
- Signal isolation in measurement and monitoring equipment to protect sensitive electronics from high-voltage interference.
- Lighting control circuits in commercial and residential settings where precise load switching and electrical noise reduction are needed.
ASSR-3211-501E Brand Info
The ASSR-3211-501E is part of a trusted series of solid-state relays developed to meet rigorous industrial standards. Manufactured under strict quality control processes, this product delivers consistent performance and durability. Its design focuses on ensuring high isolation, low power consumption, and integration ease, making it an ideal choice for engineers and sourcing specialists seeking reliable semiconductor components for AC load switching and electrical isolation.
FAQ
What is the maximum load voltage supported by this solid-state relay?
The device supports a maximum output load voltage of 240 VAC, making it suitable for most standard AC load switching applications in industrial and consumer environments.
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How does the zero-cross detection feature benefit my application?
Zero-cross detection enables the relay to switch the load precisely when the AC voltage crosses zero volts. This minimizes electrical noise, reduces stress on the load and relay, and prevents voltage spikes that can cause interference or damage.
What level of isolation does this relay provide between input and output?
It provides galvanic isolation of up to 3750 Vrms, ensuring safe separation of control circuits from high-voltage loads. This isolation protects sensitive electronics and operators from electrical hazards.
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Is this device suitable for surface-mount PCB assembly?
Yes, it is designed in a compact surface-mount package, allowing for efficient PCB layout and easy integration into automated manufacturing processes.
What are the typical switching times for this relay?
The relay features typical turn-on and turn-off times of approximately 1.5 milliseconds each, providing fast and reliable switching performance for most industrial control applications.