Description

9W 220V AC Alpha White DOB For Led Bulb – 40mm DOB

It seems you’re describing a specific type of LED PCB (Printed Circuit Board) designed for direct operation with a 220V AC power supply, often referred to as a DOB (Driver on Board) LED module. Here’s a breakdown of the components and specifications based on your description:

Components:

1. FM8301SS – Non-isolated step-down LED driver IC.
   • Package: 8SOP (Small Outline Package).
   • Function: This IC regulates the current for the LEDs from the AC input.
2. MB10F – Bridge rectifier IC.
   • Package: Unknown (typically 4-pin inline).
   • Function: Converts the AC input voltage (220V) to a rectified DC voltage.
3. Capacitors:
   • Electrolytic Capacitors: Two 2.2 microfarad capacitors rated for 400V.
   • Function: Store electrical charge to assist in smoothing and stabilizing the DC output.
4. Inductor: Used in conjunction with other components for regulating current or filtering.
5. ES1J: Likely a diode (ES1J is a common diode type).
   • Function: Typically used for rectification or protection.

Specifications:

• Type: DOB LED PCB (Driver on Board LED Printed Circuit Board)
• Input Voltage: 220V AC
• Power: 9W
• No. of LEDs: 10
• Color: White
• LED Diameter: 40mm
• Features:
  • Direct AC operation without needing an external driver circuit.
  • Inbuilt driver IC (FM8301SS) for LED current regulation.
  • Compact design with integrated components.
  • Suitable for applications like decorative products, headlights, and street lights.

Applications:

This type of LED PCB is commonly used in applications where direct connection to a 220V AC mains supply is advantageous, such as:

• Decorative lighting
• Headlights
• Street lighting

Additional Notes:

• Safety: Given the direct connection to high voltage AC mains, ensure proper insulation and safety measures are followed during installation and operation.
• Efficiency: The use of a bridge rectifier (MB10F) and a step-down LED driver (FM8301SS) suggests efforts to optimize power conversion and LED performance.
• Installation: Typically, these modules are designed for straightforward installation with line and neutral connections.

Package Includes:

1x 9W 220V AC Alpha White DOB For Led Bulb – 40mm DOB