RF4 3005 D 5A 30V

🔌 Core Specifications

Voltage & Current Range: 0–30 V DC, 0–5 A current, up to 150 W output

Voltage resolution: 10 mV; Current resolution: 1 mA (at least up to 3 A)

Line Input: Dual-voltage support (110 V / 220 V AC)

Efficiency: Around 88% — efficient and energy-saving

🛡️ Protection & Features

Transformer-based design offers stable thermal performance and clean output

Dual-mode operation:

CV Mode: Constant Voltage

CC Mode: Constant Current

Automatic A/mA range switching for analog meter displays

Built-in protections: Over-current, over-voltage, and over-temperature safeguards

Control knobs for voltage, current, and power; plus lockable settings and preset voltage memory channels

Built-in USB port offering static 5 V @ 2 A output

📏 Physical & Usability Specs

Dimensions: ~28 × 19 × 23.5 cm; Weight: ~4.7 kg

Cooling: Intelligent temperature sensing with auto heat-dissipation

Interface: Includes USB port; often accompanied by analog pointer meter for precise readings

🧰 Why It’s Great for Techs

Stable & clean output: Ideal for mobile board repair or battery testing due to its transformer-based design

Flexible operation modes: CV/CC and lockable presets make controlled testing easy

Robust protections: Safety features prevent overloading or overheating

Easy interface: Knobs and analog meters offer intuitive adjustments

🧠 Community Insight

These “3005D” style supplies (also branded as Korad, Sunshine, etc.) are praised for good performance and durability at modest cost

Transformer-based units like this are usually quieter and more stable than cheaper switch-mode supplies

Feature RF‑3005D / Pro
Voltage Range 0–30 V DC
Current Range 0–5 A
Power Output 150 W
Resolution 10 mV / 1 mA
Protections OVP / OCP / OTP
Form Factor Transformer-based, 4.7 kg
Special Feature Auto A/mA meter switching, USB 5 V@2 A