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Small blue rectangular buck converter with USB-C port and screw terminals, 63 by 27 by 10 mm, 22 g

KEHIPI

KEHIPI 200405 Blue Pro+ DC-DC Buck Converter 8.2-32V to 3-20V 4.8A USB-C Power Adapter

SKU CH-DDXP-TD21N

Steps down 8.2–32 V input to an adjustable 3–20 V output at up to 4.8 A and adds a USB-C port for charging

  • Product typeBlue Pro+/1pcs
  • Product dimensions10.0 in × 27.0 in × 1.0 in
  • Wide 8.2 V to 32 V input suits many DC sources
  • Adjustable 3 V to 20 V output matches diverse loads
  • Synchronous rectification delivers high efficiency across the range
  • USB-C with QC chip fast-charges phones and tablets
  • Compact 63 × 27 × 10 mm board fits tight enclosures

Input Range and Output Flexibility

The KEHIPI 200405 Blue Pro+ is a DC-DC buck converter that accepts an input voltage from 8.2V to 32V and delivers an adjustable output between 3V and 20V at up to 4.8A. It suits engineers, hobbyists and installers who need to step down higher-voltage DC sources such as 24V or 12V systems to power lower-voltage electronics or charge mobile devices. A protective case is included for bench or vehicle use.

Replacing Fixed Regulators and Bulky Supplies

This module replaces fixed-output regulators and larger AC-DC adapters when a wide input range and user-set voltage are required. The synchronous rectification design provides high efficiency across the 8.2V to 32V input span, making the jump worthwhile whenever the supply voltage varies or when a single unit must cover multiple output levels. It also consolidates a separate USB charger by integrating QC identification on both USB-A and Type-C ports.

Build Integration and Mounting

The compact 63×27×10mm board weighs 22g and fits tight enclosures, while the supplied copper cylinder screws, double-pass screws and roundhead screws give several mounting options. Both DC terminal blocks and a barrel jack are provided for input and output wiring, and the USB ports can operate simultaneously when the USB-A connection is made first. No external heatsink is mandated for typical loads within the 4.8A rating.

How it compares

Measured against everything we stock in AC Adapters & Power Bricks, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 70% of the 3,875 comparable items (median $23.99).

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Specifications

Product
Brand nameDROK
Model name200405
Part numberFBA200732
Product typeBlue Pro+/1pcs
Size & build
Product dimensions10.0 in × 27.0 in × 1.0 in

Questions about this item

What are the exact mounting dimensions of the 63×27×10mm case?

The case measures 63 mm long, 27 mm wide and 10 mm high, with mounting holes sized for the supplied copper cylinder and round-head screws.

Which wiring step must be done first to use both output ports together?

Connect the USB-A device before plugging anything into the USB-C port; the QC chip only enables simultaneous output when USB-A is detected first.

Which screw sets from the package are used to secure the converter inside an enclosure?

Use the four copper cylinder screws and the six round-head screws to fasten the 22 g board to a panel or chassis.

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