---
product_id: 136974147
title: "12V to 3.3V 3A Step-Down Waterproof Miniature DC-DC Converter Power Supply Module"
brand: "envistia"
price: "453232₫"
currency: VND
in_stock: true
url: https://www.desertcart.vn/products/136974147-12v-to-3-3v-3a-step-down-waterproof-miniature-dc
store_origin: VN
region: Vietnam
---

# 3A high current output Fully waterproof sealed design Wide 8-24V input range 12V to 3.3V 3A Step-Down Waterproof Miniature DC-DC Converter Power Supply Module

**Brand:** envistia
**Price:** 453232₫
**Availability:** ✅ In Stock

## Summary

> 🔌 Power up anywhere, rain or shine!

## Quick Answers

- **What is this?** 12V to 3.3V 3A Step-Down Waterproof Miniature DC-DC Converter Power Supply Module by envistia
- **How much does it cost?** 453232₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/136974147-12v-to-3-3v-3a-step-down-waterproof-miniature-dc)

## Best For

- envistia enthusiasts

## Why This Product

- Trusted envistia brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Yet Mighty:** Miniature design packs up to 9W output power in a lightweight 30g module
- • **Safety First, Always:** Integrated overload, over-current, and voltage protection for peace of mind
- • **Built to Brave the Elements:** Fully sealed waterproof casing ensures durability in any environment
- • **Versatile Voltage Compatibility:** Operates seamlessly from 8V to 24V input for flexible applications
- • **Power Your Projects with Precision:** Stable 3.3V output at up to 3A for reliable performance

## Overview

This compact 12V to 3.3V DC-DC step-down converter delivers a stable 3A current with up to 9W output power. Designed with a fully waterproof sealed casing and comprehensive protection features, it supports a wide input voltage range from 8V to 24V, making it ideal for robust, reliable power supply in diverse environments.

## Description

12V to 3.3V 3A Step-Down Waterproof Miniature DC-DC Converter Power Supply Module

## Features

- Converts a 12V input voltage (will operate with any input voltage from 8V to 24V) to 3.3V DC (+2% -10%) output at up to 3A
- Up to 9W output power (3V at 3A)
- Fully sealed and waterproof
- Overload / over-current / over / low voltage protection, stable performance
- The inputs and outputs are labeled on the sticker on top of the converter, the red and black wires are the + and - 12V input, and the red and yellow wires are the + and - 3V output.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Weight | 30 Grams |
| Current Rating | 3 Amps |
| Power Source | Corded Electric |

## Product Details

- **Brand:** Envistia
- **Power Source:** Corded Electric
- **Product Dimensions:** 1.5"D x 1.06"W x 9.06"H
- **Mounting Type:** Surface Mount
- **Current Rating:** 3 Amps

## Images

![12V to 3.3V 3A Step-Down Waterproof Miniature DC-DC Converter Power Supply Module - Image 1](https://m.media-amazon.com/images/I/61QiTvq2r4L.jpg)

## Questions & Answers

**Q: What guage are the wires?**
A: The manufacturer doesn't specify the wire gauge, but the wire conductor has a diameter of 1mm (0.04 inches), which would make it 18 AWG wire.

**Q: is this a switching DC-DC converter (or linear converter)?**
A: It's a switching converter. Power output at 3V is roughly equal to power input at 12V, so the input current is much lower than the output current. Minimal dissipation compared to a linear converter.

**Q: So, if i have a device that takes 3v .225a, even though this outputs a max of 3a it should work fine?**
A: Yes, absolutely. This module is voltage-regulated, meaning it regulates the output to 3V, and will provide whatever current the load draws, up to 3A maximum.

## Frequently Bought Together

- Envistia Mall 12V to 3V 3A Step-Down Waterproof Miniature DC-DC Converter Power Supply Module by
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**Shop now:** [https://www.desertcart.vn/products/136974147-12v-to-3-3v-3a-step-down-waterproof-miniature-dc](https://www.desertcart.vn/products/136974147-12v-to-3-3v-3a-step-down-waterproof-miniature-dc)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-18*