12V/24V (8-36V) To 5V 3A 15W DC-DC Waterproof Converter Module with USB-C Output F23J5V3A1S-C
12V/24V (8-36V) To 5V 3A 15W DC-DC Waterproof Converter Module with USB-C Output F23J5V3A1S-C
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📋 Overview
This compact, IP68 waterproof DC-DC step-down converter takes an 8–36V DC input (nominally 12V or 24V) and delivers a clean, regulated 5V DC output at up to 3A (15W maximum) through a USB-C connector. Charge and power USB-C devices — phones, dash cams, GPS units, Raspberry Pi boards, and more — directly from a 12V or 24V battery, vehicle system, or solar setup.
Built with synchronous rectification technology for 85.4% typical efficiency, this converter is fully epoxy-sealed for use in the harshest environments — vehicles, boats, outdoor installations, and industrial equipment where space is limited but performance can't be compromised.
⚠️ Important: This module outputs 5V only and does not include a USB Power Delivery (PD) negotiation chip. It charges devices that accept standard 5V USB power. Devices that require PD negotiation (such as USB-C laptops) will not charge from this module, and some PD-capable devices may default to a slower USB baseline current. See the USB-C Compatibility section below for full details.
⭐ Key Features
- Wide input range — Accepts 8–36V DC, compatible with 12V and 24V automotive, marine, and solar battery systems
- Regulated 5V/3A output — Up to 15W of clean, stable power through a USB-C connector
- IP68 waterproof housing — Fully epoxy-sealed for outdoor, automotive, and marine use
- High efficiency — 85.4% typical, minimizing heat and wasted energy
- Built-in protection — Overload, over-current, short-circuit, and low-voltage protection with automatic recovery
- Built-in input fuse — The positive input lead has an internal fuse for added protection
- Compact and lightweight — Easy to mount using the integrated mounting tabs
🔌 USB-C Compatibility
This module provides 5V power only through its USB-C connector. It does not include a USB Power Delivery (PD) negotiation chip. Here's what that means for your devices:
Works great with: most smartphones (Android and iPhone, standard 5V charging speed), dash cams, GPS units, action cameras (GoPro, etc.), Raspberry Pi 4 and Arduino boards, and simple USB-C LED lights, fans, and accessories.
Limited compatibility: tablets (iPad, Samsung Tab) may charge slowly, defaulting to USB baseline current without PD negotiation; Qualcomm Quick Charge devices will fall back to standard 5V charging rather than fast-charge speeds; the Nintendo Switch handheld may charge very slowly at baseline current.
Not compatible with: USB-C laptops and the Nintendo Switch dock, which require PD negotiation at higher voltages (typically 15–20V) to begin charging at all.
💡 Tip: If your device charges fine from a standard USB port on a computer, it will work great with this module. If your device's charger uses PD or Quick Charge at 9V or higher, this module will either charge it slowly or not at all.
📊 Specifications
| Specification | Value |
|---|---|
| Envistia Model Number | F23J5V3A1S-C |
| Input Voltage Range | 8–36V DC |
| Nominal Input | 12V or 24V DC |
| Output Voltage | 5V DC (4.8–5.3V range, ±2% regulator accuracy) |
| Max Output Current | 3A |
| Max Output Power | 15W |
| Efficiency | 85.4% typical (at 24V in, 25°C) |
| Max Input Current | Up to 2.5A at 8V input / 3A output; ~1.25A at 12V input; ~1A at 15V input |
| No-Load Current | <10mA (typ. 2mA at 24V input) |
| Voltage Regulation | ±3% |
| Load Regulation | ±5% |
| Output Ripple & Noise | <120mVp-p (typ. 46mVp-p) |
| Overcurrent Protection Trip Point | 4–6A |
| Undervoltage Shutdown / Recovery | ~7.5V shutdown / ~8.6V recovery (automatic) |
| Operating Temperature | -40°C to +55°C |
| Storage Temperature | -55°C to +100°C |
| Waterproof Rating | IP68 |
| Topology | Non-isolated, synchronous rectification buck converter |
| MTBF | ≥200,000 hours (at 24V in, 3A out) |
| Size (L × W × H) | Approx. 46 × 27 × 14 mm (1.81 × 1.06 × 0.55 inches) L × W × H (63 mm / 2.48 inches overall length including mounting tabs) |
| Weight | ≤45g (~1.5 ounces) |
| Input & Output Wire Length | Input leads: Approx. 16cm (6.3 inches) Output (USB-C) cable: Approx. 28cm (11.02 inches) |
| Input Wire Size | 22 AWG (input leads) |
| Output Connector | USB Type-C (power only, no data, no PD negotiation) |
🔌 Wiring & Connections
The input side uses bare wire leads. The output side is a ready-to-use USB-C cable — no wiring required.
| Wire Color | Function |
|---|---|
| Red (input side) | Input +V — connect to your 8–36V DC positive supply |
| Black (input side) | Input Ground — connect to your DC negative/ground |
Simply plug your USB-C cable into the output connector to power or charge your device. Input wire gauge is 22 AWG. For wire runs longer than 50cm, use a thicker gauge to minimize voltage drop — generally, place the longer run on the input (higher voltage) side.
⚠️ Important: Double-check input polarity before powering up. Reversing the input wires can damage the converter. We recommend an inline fuse on the positive input wire in addition to the module's built-in fuse.
⚠️ Important Notes
Your input power source must be able to supply at least as much power as your load will draw from the output, divided by the converter's efficiency (~85.4%). At full rated output (15W), that means at least ~17.6W available from your input source. If the input source can't keep up, the output voltage will fold back (sag) rather than deliver the full 5V. See the full User Guide for wiring diagrams and a detailed power-budget walkthrough.
The module body is IP68 waterproof, but the USB-C connector itself is not waterproof when exposed — protect the connection point in wet environments.
📦 What's in the Box
- 1× 12V/24V to 5V 3A 15W Waterproof DC-DC Converter Module with USB-C Output (F23J5V3A1S-C)
🎯 Applications
- Vehicle and marine device charging — Charge phones, dash cams, and GPS units from a 12V or 24V battery
- Hardwired dash cam power — Permanent USB-C power connection without a cigarette lighter adapter
- Single-board computer power — Power Raspberry Pi or similar 5V/3A boards via USB-C from a 12V/24V battery
- Golf carts, forklifts, and off-road equipment — Step down 12V/24V system power to charge USB-C devices
- Alternative energy and telecommunications — Provide regulated USB-C power in solar and off-grid systems
📄 Documentation & Resources
- User Guide — Wiring, specifications, Mechanical & STEP Files, power-budget calculations & troubleshooting
- All Buck Step-Down DC/DC Converter User Guides
🛒 Other Models in the Series
- 12V/24V to 5V 3A DC-DC Converter with Bare Wire Output (F23J5V3A1S)
- 12V/24V to 5V 3A DC-DC Converter with Micro-USB Output (F23J5V3A1S-MC)
Sold and supported by Envistia Mall. Ships from the USA. For wiring diagrams, sample code, and troubleshooting, see the User Guide tab on this product page. The manufacturer and Envistia LLC (dba Envistia Mall) are not responsible for any damages or losses resulting from the use of this product. Always follow proper electrical safety practices when working with electronic components. Specifications are based on manufacturer data and are subject to change without notice.
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works perfectly fine