ASSR-4120-302E Overview
The ASSR-4120-302E is a high-performance solid-state relay designed for industrial automation and control applications requiring reliable and fast switching. Featuring a compact SOP-4 package, this device integrates an LED input and a photodetector output with galvanic isolation, enabling safe interfacing between control circuits and high-voltage loads. With a high isolation voltage rating and low input current requirements, it offers robust protection and energy efficiency. The relay??s fast response time and low output leakage current make it suitable for precise switching tasks in harsh industrial environments. This product is supplied by IC Manufacturer, ensuring consistent quality and performance for demanding applications.
ASSR-4120-302E Technical Specifications
| Parameter | Specification |
|---|---|
| Input Forward Current (IF) | 7 mA (typical) |
| Output Load Voltage (VO) | 60 V max |
| Output Load Current (IO) | 120 mA max |
| Isolation Voltage (Viso) | 3750 Vrms (min) |
| Output Leakage Current (IOFF) | 1 ??A max at 60 V |
| Switching Time (ton/toff) | 0.1 ms / 0.1 ms typical |
| Operating Temperature Range | -40 to +105 ??C |
| Package Type | SOP-4 |
ASSR-4120-302E Key Features
- High isolation voltage: Provides 3750 Vrms isolation, ensuring safety and noise immunity between input and output circuits.
- Low input current requirement: Operates typically at 7 mA, reducing power consumption and enabling efficient control signal interfacing.
- Fast switching speed: Switching times around 0.1 ms allow for responsive control in time-critical applications.
- Low output leakage current: Minimizes undesired current flow when the relay is off, enhancing system reliability and reducing power loss.
- Compact SOP-4 package: Enables high-density PCB layouts while maintaining ease of handling and soldering.
- Wide operating temperature range: Suitable for harsh industrial environments from -40 ??C to +105 ??C.
- Solid-state construction: No mechanical parts ensure long operational life and high reliability under vibration or shock conditions.
ASSR-4120-302E Advantages vs Typical Alternatives
This solid-state relay offers superior isolation voltage and faster switching times compared to many electromechanical relays, enhancing system safety and responsiveness. Its low input current and output leakage current improve energy efficiency and reduce thermal stress. The compact SOP-4 package facilitates integration into space-constrained designs, while the robust operating temperature range ensures reliable performance in demanding industrial applications.
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Typical Applications
- Industrial automation systems requiring isolated switching of DC loads with precise timing and high reliability, such as motor controllers and programmable logic controllers.
- Signal switching in test and measurement equipment where low leakage and fast response are critical.
- Power supply control circuits needing galvanic isolation to protect sensitive components from high voltages.
- Consumer electronics safety circuits that benefit from compact footprint and reliable solid-state switching.
ASSR-4120-302E Brand Info
The ASSR-4120-302E is part of the product lineup offered by IC Manufacturer, a trusted supplier specializing in optoelectronic components and solid-state relays. Known for their commitment to quality and innovation, the brand delivers devices engineered for robust industrial performance. This model exemplifies their focus on combining high isolation, fast switching, and energy efficiency to meet the needs of modern electronic control systems.
FAQ
What is the maximum isolation voltage of this solid-state relay?
The device provides a minimum isolation voltage of 3750 Vrms, ensuring strong galvanic isolation between the input LED side and the output photodetector side. This high isolation rating protects control circuits from high-voltage loads and enhances overall system safety.
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What are the input current requirements for operating the relay?
The relay typically requires a forward input current of 7 mA to activate the internal LED. This low input current reduces power consumption and allows easy interfacing with low-power control signals such as microcontroller outputs or industrial logic levels.
How fast does the relay switch on and off?
The switching times are approximately 0.1 ms for both turn-on and turn-off, enabling rapid and precise switching suitable for time-sensitive applications like motor controls or signal routing in test systems.
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Can this device operate reliably in harsh environments?
Yes, it supports an operating temperature range from -40 to +105 ??C, making it well-suited for industrial environments where temperature extremes, vibration, and electrical noise are common.
What package type does this relay come in, and why is it beneficial?
The relay is housed in a compact SOP-4 surface-mount package, which allows for high-density PCB layouts and automated assembly while maintaining good thermal performance and mechanical stability.