The PS2561AL2-1-V-E3-L-A is a single-channel optocoupler manufactured by CEL (California Eastern Laboratories), which partners with NEC (now Renesas). This optocoupler is designed to provide electrical isolation between circuits, enhancing safety and preventing ground loops. It features a high isolation voltage and is well-suited for various applications in industrial control, power supplies, and communication interfaces.

Applications

• Industrial Control Systems: Used for isolating control signals in machinery and automation equipment.
• Power Supplies: Provides isolation between the primary and secondary sides of power supplies.
• Motor Control Circuits: Isolates control signals for motors, improving system reliability and safety.
• Communication Interfaces: Offers galvanic isolation in data transmission systems to protect against voltage surges and noise.
• Measurement Equipment: Isolates sensitive measurement circuits from high voltages and noise.
• Inverter Applications

Features

• High Isolation Voltage: Offers reinforced insulation for enhanced safety and protection.
• Compact Package: Designed for high-density mounting on printed circuit boards (PCBs).
• High Collector-Emitter Voltage: Allows for use in high-voltage applications.
• High Common-Mode Transient Immunity (CMTI): Ensures reliable operation in electrically noisy environments, preventing false triggering.
• Current Transfer Ratio (CTR): Available with various CTR options to meet diverse circuit requirements.
• Pb-Free Construction: Complies with environmental regulations, making it RoHS compliant.

Benefits

• Enhanced Safety: Galvanic isolation protects users and equipment from potentially dangerous voltages.
• Improved Reliability: High CMTI minimizes the risk of malfunctions due to electrical noise.
• Space Saving: Compact package allows for efficient board layouts and smaller product designs.
• Design Flexibility: Wide range of CTR options provides adaptability for different circuit configurations.
• Environmental Compliance: Pb-Free construction meets environmental standards and reduces hazardous waste.
• Prevents Ground Loops: Isolates circuits and prevents unwanted current paths.

Additional Details

The PS2561AL2-1-V-E3-L-A consists of an infrared LED and a phototransistor. When current flows through the LED, it emits infrared light, which activates the phototransistor, allowing current to flow in the output circuit. The 'AL2' likely indicates a specific package type or lead form. The '-1' might signify a specific CTR range or internal configuration. 'V' specifies a high isolation voltage. 'E3' and 'L' likely indicate specific lead forming or packaging options, while 'A' may refer to particular testing procedures or packaging specifications. The typical operating temperature range is from -55°C to +110°C. It meets industry safety standards such as UL, CSA, and VDE. For detailed specifications including CTR values, input forward voltage, and output saturation voltage, refer to the datasheet.