--- product_id: 136974147 title: "12V to 3.3V 3A Step-Down Waterproof Miniature DC-DC Converter Power Supply Module" brand: "envistia" price: "€ 16.49" currency: EUR in_stock: true category: "Envistia" url: https://www.desertcart.de/products/136974147-12v-to-3-3v-3a-step-down-waterproof-miniature-dc store_origin: DE region: Germany --- # 3A max current output Fully waterproof sealed design Wide 8V-24V input range 12V to 3.3V 3A Step-Down Waterproof Miniature DC-DC Converter Power Supply Module **Brand:** envistia **Price:** € 16.49 **Availability:** ✅ In Stock ## Summary > ⚡ Compact power, waterproof confidence – never settle for less! ## 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?** € 16.49 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/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 size fits tight spaces without compromising on power output - • **Smart Protection Circuitry:** Includes overload, over-current, and voltage protection for peace of mind - • **Built to Brave the Elements:** Fully sealed waterproof casing ensures durability in any environment - • **Power Your Projects Reliably:** Delivers a stable 3.3V output at up to 3A for consistent performance - • **Versatile Voltage Compatibility:** Operates seamlessly with input voltages from 8V to 24V for flexible use ## Overview This 12V to 3.3V step-down DC-DC converter module delivers up to 3A current with a stable 3.3V output, supports a wide input voltage range (8V-24V), and features a fully waterproof sealed design. It includes multiple protection mechanisms to ensure safe, reliable operation in compact form factor, ideal for professional-grade electronics projects and demanding environments. ## Description Buy 12V to 3.3V 3A Step-Down Waterproof Miniature DC-DC Converter Power Supply Module: Power Converters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## 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 | |---------------|-------| | ASIN | B07PNWPLRY | | Best Sellers Rank | #382,586 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,691 in Power Converters | | Brand Name | Envistia | | Current Rating | 3 A | | Customer Reviews | 4.6 4.6 out of 5 stars (256) | | Item Dimensions D x W x H | 1.5"D x 1.06"W x 9.06"H | | Item Weight | 30 g | | Manufacturer | Chuangruifa | | Model | 3V 3A DC-DC Converter | | Mounting Type | Surface Mount | | Part Number | 3V 3A DC-DC Converter | | Power Source | Corded Electric | | Specification Met | FCC, UL | | UPC | 732387204855 | | Unit Count | 1 Count | ## Product Details - **Brand:** Envistia - **Current Rating:** 3 A - **Mounting Type:** Surface Mount - **Power Source:** Corded Electric - **Product Dimensions:** 1.5"D x 1.06"W x 9.06"H ## 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) ![12V to 3.3V 3A Step-Down Waterproof Miniature DC-DC Converter Power Supply Module - Image 2](https://m.media-amazon.com/images/I/517-Z6YRM4L.jpg) ![12V to 3.3V 3A Step-Down Waterproof Miniature DC-DC Converter Power Supply Module - Image 3](https://m.media-amazon.com/images/I/51Hnt0QzMPL.jpg) ![12V to 3.3V 3A Step-Down Waterproof Miniature DC-DC Converter Power Supply Module - Image 4](https://m.media-amazon.com/images/I/61qvJxym-rL.jpg) ![12V to 3.3V 3A Step-Down Waterproof Miniature DC-DC Converter Power Supply Module - Image 5](https://m.media-amazon.com/images/I/41BAJaLgaOL.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 - HOMELYLIFE DC 12V 24V to DC 5V 3A 15W Step Down Buck Converter Voltage Regulator Reducer Power Converter Mini Module Transformer - DC 12V/24V to 5V 3A Step Down Converter - 12V Voltage Regulator Buck Converter Power Supply Transformer - 12V/24V to 5V 3A --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.de/products/136974147-12v-to-3-3v-3a-step-down-waterproof-miniature-dc](https://www.desertcart.de/products/136974147-12v-to-3-3v-3a-step-down-waterproof-miniature-dc) --- *Product available on Desertcart Germany* *Store origin: DE* *Last updated: 2026-07-28*