DB107 1A 1000V Bridge Rectifier IC DIP-4

DB107 1A 1000V Bridge Rectifier IC DIP-4 is a compact and highly reliable semiconductor device designed to convert alternating current (AC) into direct current (DC) through full-wave rectification. This integrated circuit houses four individual rectifier diodes in a bridge configuration, which significantly simplifies circuit board layout and reduces assembly costs. Furthermore, the DB107 supports a high repetitive peak reverse voltage of 1000V, making it exceptionally resilient against voltage spikes and surges in mains-powered applications. Consequently, engineers frequently select this component for small power supplies and battery chargers where space efficiency is a priority. Therefore, you should utilize the DB107 to ensure a stable and efficient rectification stage in your next electronic design.

Key Features:

• High Voltage Rating: The device handles a maximum repetitive peak reverse voltage of 1000V, providing a large safety margin for standard 220V or 110V AC inputs.
• Compact DIP-4 Package: The 4-pin Dual In-line Package offers a tiny footprint, which allows for high-density mounting on printed circuit boards.
• Low Forward Voltage Drop: Each diode within the bridge features a low forward voltage, minimizing power loss and heat generation during operation.
• High Surge Current Capability: It possesses a robust non-repetitive peak forward surge current rating, protecting the circuit during initial power-up.
• Glass Passivated Junctions: The internal silicon chips utilize glass passivation, which enhances reliability and decreases leakage current over time.

Technical Specifications:

• Maximum Repetitive Peak Reverse Voltage (V_RRM): 1000 V
• Maximum RMS Bridge Input Voltage (V_RMS): 700 V
• Maximum DC Blocking Voltage (V_DC): 1000 V
• Maximum Average Forward Rectified Current (I_F(AV)): 1.0 A (± at T_a = 40°C)
• Peak Forward Surge Current (I_FSM): 30 A (8.3ms single half sine-wave)
• Maximum Forward Voltage per Diode (V_F): 1.1 V (at I_F = 1.0 A)
• Operating Junction Temperature Range: −55°C to +150°C

Mechanical Specifications:

• Case Material: Molded Plastic (UL 94V-0 Flammability Classified)
• Terminals: Plated leads solderable per MIL-STD-202, Method 208
• Polarity: Polarity symbols (+, −, ~) are marked on the body for easy identification.
• Mounting Position: Any

Dimensions:

• Body Length: ≈ 8.1 mm
• Body Width: ≈ 6.35 mm
• Body Height: ≈ 3.05 mm
• Lead Spacing (Pitch): ≈ 5.1 mm
• Total Height (including pins): ≈ 8.5 mm

Pinout and Wiring:

• Pin 1 (AC Input / ~): Connect to one of the AC supply lines from the transformer secondary.
• Pin 2 (AC Input / ~): Connect to the second AC supply line.
• Pin 3 (Negative Output / −): Provides the rectified negative DC terminal for the circuit ground.
• Pin 4 (Positive Output / +): Provides the rectified positive DC voltage output.
• Wiring Note: However, always ensure a smoothing capacitor is connected across the positive and negative DC pins to reduce ripple voltage.

Datasheet Reference:

• Download Diodes Incorporated DB107 Datasheet

Commonly Used in:

• AC-DC Power Adapters: Serving as the primary rectification stage for small electronic wall-warts and power bricks.
• LED Drivers: Converting residential AC voltage into the DC required by LED lighting arrays.
• Consumer Appliances: Providing internal DC power for control boards in coffee makers, blenders, and toasters.

Applications:

• Full-Wave Rectification: Efficiently utilizing both halves of the AC cycle to provide a smoother DC output.
• Polarity Protection: Acting as a safety bridge to prevent damage if a DC power source is connected backwards.
• Embedded Power Supplies: Creating regulated DC rails for microcontrollers and sensors directly from AC sources.

Equivalent Models:

• DB106: A similar bridge rectifier rated for 800V, suitable if the 1000V peak is not required.
• DF10: A functionally identical series in a slightly different package footprint, however, it maintains the 1A 1000V rating.
• MB10S: The surface-mount (SMD) equivalent for high-density automated assembly designs.

Package Includes:

• 1 x DB107 1A 1000V Bridge Rectifier IC DIP-4