ASSR-3211-301E Overview
The ASSR-3211-301E is a compact, high-performance solid-state relay designed for industrial automation and control applications. Featuring a phototransistor output with an input LED, it provides reliable galvanic isolation between input and output circuits up to 3750 VRMS. This device offers low input current requirements and fast switching speeds, making it ideal for precise digital control in systems requiring noise immunity and safety compliance. Its compact SOP-4 package facilitates easy PCB integration, optimizing space without compromising performance. For comprehensive semiconductor solutions, visit IC Manufacturer.
ASSR-3211-301E Technical Specifications
| Parameter | Specification |
|---|---|
| Input LED Forward Current (IF) | 5 mA (typical) |
| Input LED Forward Voltage (VF) | 1.2 V (typical) |
| Output Voltage (VOFF) | 60 V (max) |
| Output Current (IO) | 50 mA (max) |
| Isolation Voltage (VISO) | 3750 VRMS |
| Switching Time (ton/toff) | 3 ??s / 3 ??s (typical) |
| Operating Temperature Range | -40 to +100 ??C |
| Package Type | SOP-4 |
ASSR-3211-301E Key Features
- High isolation voltage: Provides 3750 VRMS galvanic isolation, ensuring system safety and protection against high voltage spikes.
- Low input current: Operates efficiently with minimal LED forward current, reducing power consumption in control circuits.
- Fast switching speed: Offers typical turn-on and turn-off times of 3 ??s, supporting rapid signal transitions and precise timing control.
- Compact SOP-4 package: Enables space-saving PCB designs, facilitating integration in dense industrial control systems.
- Phototransistor output: Provides linear output characteristics, enhancing signal integrity in digital isolation applications.
ASSR-3211-301E Advantages vs Typical Alternatives
This solid-state relay stands out with its high isolation voltage and fast switching capabilities compared to typical mechanical relays, offering enhanced reliability and noise immunity. Its low input current reduces overall power consumption, beneficial in low-power systems. The phototransistor output enables smooth signal transfer without mechanical wear, increasing system longevity and reducing maintenance requirements.
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Typical Applications
- Industrial automation systems requiring reliable digital isolation between control and power circuits, ensuring operator safety and equipment protection in harsh environments.
- Programmable logic controllers (PLCs) where fast and precise switching is critical to process control and system responsiveness.
- Signal isolation in instrumentation and measurement devices to prevent ground loops and electrical interference.
- Consumer electronics and industrial equipment that demand compact relay solutions with high reliability and low power consumption.
ASSR-3211-301E Brand Info
The ASSR-3211-301E is a product from a leading semiconductor manufacturer specializing in industrial-grade optoelectronic components. Designed with stringent quality standards, this solid-state relay offers dependable electrical isolation and switching performance to meet the rigorous demands of modern industrial control applications. Its robust design and proven technology reflect the brand??s commitment to innovation and reliability in semiconductor devices.
FAQ
What type of isolation does the ASSR-3211-301E provide?
The device provides galvanic isolation of up to 3750 VRMS between input and output circuits. This high isolation voltage ensures protection against electrical noise and high-voltage transients, which is critical for maintaining system integrity and operator safety in industrial environments.
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Can this solid-state relay handle high current loads?
The maximum output current rating is 50 mA, making it suitable for signal-level switching rather than high-power loads. For switching higher currents, external driver circuits or relays designed for power applications are recommended.
What are the switching speed characteristics of this device?
Typical turn-on and turn-off times are both around 3 microseconds, enabling fast and precise switching operations. This is advantageous in applications requiring rapid control signal transitions and high-frequency operation.
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Is the package suitable for automated assembly?
Yes, the SOP-4 package is industry-standard and compatible with automated surface-mount technology (SMT) assembly processes. Its compact footprint helps reduce PCB size while supporting high-density circuit designs.
What is the operating temperature range for reliable use?
The relay is rated for operation from -40 to +100 degrees Celsius, covering a broad temperature range suitable for most industrial and commercial environments, ensuring stable performance under varying thermal conditions.