AQH2223 DIP-7 Solid-State Relay (SSR)

The AQH2223 is a solid-state relay (SSR) IC manufactured by Panasonic Industrial Devices. It is housed in a DIP-7 (Dual In-line Package with 7 pins) package, which is a through-hole component commonly used in electronic circuits. Below is a detailed explanation of the AQH2223 and its DIP-7 configuration:

What is the AQH2223?

• Type: Solid-state relay (SSR) with a photo-triac output.
• Function: It is designed to control AC loads, offering electrical isolation between the input control signal and the output load. It is commonly used for switching AC loads in applications such as:
  • Home appliances (e.g., air conditioners, microwaves, washing machines, refrigerators).
  • Industrial machinery (e.g., material handling, packaging).
  • Automotive systems (e.g., steering, braking).
  • Robotics and automation (e.g., motion control systems).
  • Medical equipment (e.g., surgical robots, imaging devices).
• Key Features:
  • Input: Low current control (25 mA DC input).
  • Output: Can handle up to 0.9 A and 600 V AC.
  • Isolation: High dielectric strength of 5,000 V AC between input and output.
  • Compact Size: Suitable for space-constrained applications.
  • Versatility: Supports both 100 V and 200 V AC loads, reducing the need for multiple part numbers.

DIP-7 Package

• DIP-7 refers to the physical package of the AQH2223, which has 7 pins arranged in a dual in-line configuration (two parallel rows of pins).
• Pin Configuration:
  • Pin 1: Common (GND).
  • Pins 2–6: Form a 6-pin header for controlling the output contacts.
  • Pin 7: Input (IN), used to control the relay’s switching action.
• Mounting: The DIP-7 package is designed for through-hole mounting on a printed circuit board (PCB), though surface-mount options may also be available for similar SSRs.

Applications:

The AQH2223 is widely used in circuits requiring reliable, noise-free switching of AC loads with minimal power consumption. Its high isolation and compact size make it ideal for:

• Controlling AC motors, fans, or heaters.
• Automation systems requiring precise control.
• Applications where electromagnetic interference (EMI) must be minimized compared to mechanical relays.