DC 24V to 5V 3A 15W , AC 24V to 5V Step Down Voltage Converter

Description

AC to DC Voltage Converter – Built for Performance and Protection

💥 Rugged Construction for Harsh Environments

Designed with total reliability in mind, this converter features a fully sealed IP68-rated enclosure, making it submersible in water up to 1.5 meters for 30 minutes without risk of failure.

Its housing is made from flame-resistant V-0 grade ABS material, engineered to handle extreme temperature variations from -20°C to +65°C.

Internally, it’s built using high-grade automotive components and boasts an MTBF of over 50,000 hours, ensuring long-term operation in demanding applications.

⚡ High-Efficiency Power Output

Thanks to advanced synchronous rectification, this unit delivers power with up to 92% efficiency, minimizing energy loss even under full load.

The output remains tightly regulated at 5V ±1%, providing consistent voltage despite input fluctuations within 10–40V DC or 10–26V AC.

It supports a continuous output current of 3A and handles peak loads of up to 3.5A, making it ideal for power-hungry electronics and field devices.

🔐 Integrated Safety Mechanisms

Equipped with a comprehensive protection suite, the converter includes automatic shutdown for short circuits, reverse polarity, and overheating conditions.

A fast-acting 5A fuse and 600W-rated transient voltage suppressor help protect against surges and voltage spikes.

Built-in load sensing detects excessive current draw and prevents damage to both the converter and connected equipment.

Technical Specifications

Advanced Circuit Design

🧠 Intelligent Power Architecture

Utilizing a proprietary synchronous buck circuit controlled by the LM25116-Q1 PWM IC, this converter minimizes switching losses while maintaining power stability.

The multi-layer PCB is designed with 2oz copper layers and embedded thermal vias to enhance heat dissipation across the board.

The design has passed key automotive-grade reliability tests, including vibration (ISO 16750-2) and water/dust resistance (ISO 20653), ensuring performance in mission-critical environments.

🌡 Dynamic Thermal Regulation

Internal NTC temperature sensors actively monitor heat levels, while dual thermal paths help manage dissipation.

When core temperatures exceed 75°C, the system automatically reduces output to prevent overheating while maintaining operation.

Cold-start capability is built-in down to -40°C, with an optional pre-heating circuit for use in extremely low temperatures.

Certifications & Support

• Insulation tested to 1500V DC (note: non-isolated topology)
• Fully compliant with UL 60950-1 and EN 55032 Class B for EMI emissions
• Backed by a 1-year limited warranty and lifetime technical support

Wiring & Installation Guide

Step 1: Confirm that your input source is within 10–40V DC or 10–26V AC range

Step 2: Strip 10mm of insulation from your 18–12 AWG wiring

Step 3: Connect wires using the lever terminals:

• Input: Red wire to positive (+)
• Output: Yellow = +5V, Black = Ground (GND)
• Step 4: Tighten the included waterproof cable glands for a secure seal
• 💡 Tip: Apply dielectric grease (not included) for outdoor, solar, or marine use to enhance moisture resistance.

Frequently Asked Questions (FAQs)

Q: Can I use this converter directly with 220V AC mains power?

🚫 No. This unit requires a low-voltage AC or DC input, such as from a battery or solar setup. You’ll need a separate step-down converter for 220V applications.

Q: How do I determine if the load is within safe limits?

✔ Add up the power demands of each device: 5V × current (in amps). For instance, a 5V/2A camera plus a 5V/1A sensor equals a total load of 15W.

Q: Does it emit much EMI?

📉 Not at all. It’s designed to stay below 30dBµV at 3 meters, in compliance with EN55032 Class B — ideal for automotive, industrial, and medical installations.

This AC to DC converter combines superior protection, high efficiency, and industrial-grade reliability — the perfect solution for sensitive electronics, off-grid power systems, or marine and vehicle applications.