USB to Micro USB 5V Step-Down Converter Cable
Voltage Reduction Adapter for Arduino, DIY Electronics, Small Devices
Product Specifications
| Product Name |
USB to Micro USB Step-Down Converter Cable |
| Input Connector |
USB Type-A Male |
| Output Connector |
Micro USB Male |
| Input Voltage |
DC 5V |
| Output Voltage |
3.3V or 3V (Fixed, depending on chip) |
| Output Current |
Max 1A (depending on load) |
| Cable Length |
Customizable (3FT) |
| Built-in Chip |
Voltage regulator (e.g., AMS1117 or custom) |
| Material |
PVC Insulation, Tinned Copper Wire |
| Color |
Black (OEM colors available) |
Product Introduction
This USB to Micro USB Step-Down Converter Cable reduces the standard 5V USB voltage down to 3.3V (or 3V), making it perfect for powering Arduino modules, ESP8266 boards, low-voltage sensors, and other DIY electronic components that require a lower voltage input.
It's a convenient solution for hobbyists, technicians, and makers who work with sensitive microcontrollers or 3.3V systems.
Key Specifications
- Input: 5V from USB-A
- Output: 3.3V / 3V via Micro USB
- Length: 30cm-50cm or custom
- Wire Gauge: 24AWG Power Line
- Protection: Overload, short-circuit protection (depends on chip)
Product Features
- Safely powers 3.3V microcontroller boards from USB
- Plug-and-play, no external components needed
- Compact and portable for lab or field use
- Clean and stable voltage output
- Ideal for DIY electronics and IoT applications
Compatible Devices
- Arduino Pro Mini 3.3V
- ESP8266 / NodeMCU
- OLED / I2C modules (3.3V input only)
- Li-Ion charging boards (with 3V-3.7V limit)
- Prototyping boards and test environments
Note: Not suitable for charging smartphones or tablets. Ensure your device supports 3.3V power input before use.
Safety & Usage Notes
- Do not overload (1A max recommended)
- Avoid reverse connection
- Not suitable for data transmission (power only)
- Use in dry, indoor environments only
- Check output voltage variant before connecting to sensitive modules
OEM & Customization Options
| Option |
Description |
| Output Voltage |
3.3V / 3.0V / 1.8V (fixed or selectable) |
| Output Connector |
Micro USB / DC Barrel / JST / Dupont |
| Length |
15cm / 30cm / 50cm / 100cm |
| Cable Color |
Black / Red / Custom Pantone |
| Branding |
Label Tag / Cable Mold Logo |
| Packaging |
PE Bag / OEM Zip Bag / Retail Box |
Frequently Asked Questions
Q1. Are you factory or trade company?
A: We are factory of more than 16 years export experience.
Q2. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery.
Q3. What is your terms of delivery?
A: EXW, FOB, CFR, CIF, DDU.
Q4. Samples ?
A: 2-5 pieces free samples are available, freight on you. Delivery time usually is 2-3 days. Customized samples will take 5-10 days.
Q5. What is delivery time if we place an order?
A: It depends order quantities. Usually, we can deliver goods within 10-15 working days, for more QTY order, let's confirm when you place official order.
Q6. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.
Q7. How to ship out the cargo?
A: At your request, by sea, by express, all are available.
