The MFJ PC-305 is a high-current switching DC power supply designed for radio communication equipment, electronic devices and projects that require a stable and adjustable power source.

Its output voltage can be precisely adjusted from 0 to 15 V DC, while the current limit can be set between 0 and 30 A. The constant-voltage (CV) and constant-current (CC) operating modes help maintain the values selected by the user and protect the connected load during testing and normal operation.

The white 4-digit digital display provides voltage, current and power readings. Its 0.01 V and 0.01 A resolution allows accurate adjustments during diagnostic, repair and equipment-development work.

With a maximum published capacity of 30 A, the MFJ PC-305 can power many compatible HF, CB, VHF and UHF transceivers, as well as amplifiers, station accessories and other 12 to 15 V electronic equipment.

Its compact dimensions make it easy to integrate into amateur radio stations, electronics workshops and laboratory workbenches.

Main features

• Brand: MFJ
• Model: PC-305
• Reference: PC305
• EAN: 8435550819703
• Type: switching DC power supply
• Operation: adjustable and programmable
• Output voltage: 0–15 V DC
• Output current: adjustable up to 30 A
• Operating modes: constant voltage (CV) and constant current (CC)
• Display: white 4-digit digital display
• Displayed values: voltage, current and power
• Display resolution: 0.01 V / 0.01 A
• Input voltage: 230 V AC ±10%
• Input frequency: 50–60 Hz
• Current stability: ≤5% + 3 mA
• Load stability: ≤5% + 3 mA
• Published ripple value: ≤5% AP-P
• Protection: short-circuit protection
• Output connections: high-conductivity rear binding posts
• Operating temperature: 0 to 40 °C
• Use: indoor use only
• Dimensions: 120 × 160 × 80 mm
• Weight: approximately 2 kg

Recommended applications

• Amateur radio stations
• Compatible HF, CB, VHF and UHF transceivers
• Equipment and accessories powered between 12 and 15 V
• Compatible radio communication amplifiers and accessories
• Electronics repair workshops
• Laboratory workbenches
• Circuit testing and fault diagnosis
• Electronic projects and prototypes

Package contents

• 1 MFJ PC-305 power supply
• 1 AC power cable with European plug
• Copper terminals for connecting DC cables
• 1 instruction manual

Important note

Before connecting any equipment, set the correct voltage and current limit for the intended load. Always check the polarity and maximum current consumption, and use DC cables with a suitable cross-section for currents of up to 30 A.

The stated 30 A is the published maximum current capacity. As the manufacturer does not distinguish between continuous and peak current, check the equipment’s current consumption during transmission and allow a suitable safety margin.

Keep all ventilation openings unobstructed. This power supply is intended exclusively for indoor use and must not be exposed to moisture, liquids, or flammable and corrosive environments.