ASSR-401C-003E Overview
The ASSR-401C-003E is a compact, high-performance solid-state relay designed for reliable isolation and switching in industrial automation and control systems. Featuring a 3 A maximum load current and a low input current requirement, it offers efficient operation with minimal power consumption. The device integrates a photodiode input with a MOSFET output, ensuring excellent noise immunity and fast switching speeds. Its compact package and wide operating temperature range make it suitable for harsh environments and space-constrained applications. Engineers and sourcing specialists will find this product ideal for applications requiring electrical isolation combined with precise switching performance. For detailed technical support and availability, visit IC Manufacturer.
ASSR-401C-003E Technical Specifications
| Parameter | Specification |
|---|---|
| Input Control Current (IF) | 3 mA (typical) |
| Load Current (Output, ILOAD) | 3 A (maximum) |
| Load Voltage (Output, VL) | Up to 60 V |
| Isolation Voltage (Viso) | 2500 Vrms (minimum) |
| Operating Temperature Range | -40??C to +100??C |
| Input-Output Isolation Capacitance | 0.6 pF (typical) |
| Turn-on Time (tON) | 0.1 ms (typical) |
| Turn-off Time (tOFF) | 0.1 ms (typical) |
| Output Type | Photovoltaic MOSFET |
| Package Type | 5-pin SIP |
ASSR-401C-003E Key Features
- High Load Current Capability: Supports up to 3 A output current, enabling direct switching of medium-power loads without additional components.
- Low Input Drive Current: Requires only 3 mA typical input current, reducing power consumption and enabling compatibility with low-power control signals.
- Electrical Isolation: Provides 2500 Vrms isolation between input and output, enhancing system safety and reducing noise interference in sensitive applications.
- Fast Switching Times: Both turn-on and turn-off occur in approximately 0.1 ms, facilitating quick response in control and automation circuits.
- Compact 5-Pin SIP Package: Saves PCB space while simplifying installation and integration into existing designs.
- Wide Operating Temperature Range: Reliable performance from -40??C to +100??C allows usage in industrial environments with extreme temperature conditions.
- Photovoltaic MOSFET Output: Ensures low on-resistance and minimal leakage current, improving overall efficiency and thermal performance.
ASSR-401C-003E Advantages vs Typical Alternatives
This device offers superior isolation voltage and lower input control current compared to many traditional electromechanical relays and optocouplers. Its MOSFET output stage ensures silent operation and fast switching, eliminating contact bounce and wear issues. The compact SIP package facilitates easier integration without sacrificing current capacity, making it highly reliable and efficient for industrial control applications where space and performance are critical.
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Typical Applications
- Industrial automation systems for switching motors, solenoids, and heaters where electrical isolation and reliable switching are essential to protect control electronics.
- Power supply control circuits that require precise on/off switching with minimal electrical noise interference.
- Signal isolation in sensor interfaces, enabling safe communication between high-voltage loads and low-voltage microcontrollers.
- Building automation for controlling lighting and HVAC systems with enhanced safety and energy efficiency.
ASSR-401C-003E Brand Info
The ASSR-401C-003E is part of a family of high-quality solid-state relays designed and manufactured by a leading semiconductor company specializing in industrial-grade optoelectronic components. This product line is known for its durability, precision, and compliance with stringent industry standards. The brand emphasizes innovation in isolation technology, delivering components that meet the demanding requirements of modern industrial and automation systems.
FAQ
What is the maximum load current supported by this device?
The device supports a maximum load current of 3 amperes, allowing it to switch medium-power loads directly without requiring external transistors or relays.
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How does the input control current affect system design?
With a typical input control current of 3 mA, the device minimizes power consumption on the control side. This low drive current enables interfacing with low-power logic circuits and reduces overall system energy requirements.
What level of electrical isolation does this product provide?
It provides a minimum isolation voltage of 2500 Vrms between input and output, ensuring safe separation of control signals from high-voltage load circuits and reducing electrical noise transfer.
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Can this solid-state relay operate in harsh industrial environments?
Yes, the operational temperature range from -40??C to +100??C allows it to perform reliably under extreme temperature conditions commonly found in industrial settings.
What advantages does a photovoltaic MOSFET output provide?
The photovoltaic MOSFET output offers low on-resistance and fast switching without mechanical wear or contact bounce, enhancing the relay’s efficiency and longevity compared to mechanical relays.





