---
product_id: 163382310
title: "NooElec SMA DC Block In-Line 50 Ohm 50kHz-8GHz Connector Blocks DC Voltage from your Radio or RF Test Equipment. Ultra-Low Insertion Loss (<0.3dB to 6GHz) and 2 Watts Maximum Power"
brand: "nooelec"
price: "¥10892"
currency: JPY
in_stock: true
reviews_count: 3
category: "Noo Elec"
url: https://www.desertcart.jp/products/163382310-nooelec-sma-dc-block-in-line-50-ohm-50khz-8ghz
store_origin: JP
region: Japan
---

# Blocks up to 50V DC voltage 50kHz-8GHz ultra-wide freq range Ultra-low insertion loss <0.3dB to 6GHz NooElec SMA DC Block In-Line 50 Ohm 50kHz-8GHz Connector Blocks DC Voltage from your Radio or RF Test Equipment. Ultra-Low Insertion Loss (<0.3dB to 6GHz) and 2 Watts Maximum Power

**Brand:** nooelec
**Price:** ¥10892
**Availability:** ✅ In Stock

## Summary

> 🔌 Block the noise, boost your signal — stay ahead in the RF game!

## Quick Answers

- **What is this?** NooElec SMA DC Block In-Line 50 Ohm 50kHz-8GHz Connector Blocks DC Voltage from your Radio or RF Test Equipment. Ultra-Low Insertion Loss (<0.3dB to 6GHz) and 2 Watts Maximum Power by nooelec
- **How much does it cost?** ¥10892 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/163382310-nooelec-sma-dc-block-in-line-50-ohm-50khz-8ghz)

## Best For

- nooelec enthusiasts

## Why This Product

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

## Key Features

- • **Seamless Signal Integrity:** Maintain crystal-clear RF signals with ultra-low insertion loss under 0.3dB up to 6GHz, ensuring your setup performs at peak precision.
- • **Broad Compatibility Spectrum:** Engineered to integrate flawlessly with a wide range of devices—from cell phones to amplifiers—making it the go-to choice for pros.
- • **Power & Protection Perfected:** Safeguard your sensitive equipment by blocking DC voltages up to 50V while handling RF power up to 2W effortlessly.
- • **Confidence with Every Connection:** Backed by a full 2-year direct support from NooElec, ensuring your investment is protected and your performance uninterrupted.
- • **Precision Laser-Etched Durability:** Experience long-lasting reliability with laser-etched markings that resist wear, keeping your gear identification flawless for years.

## Overview

The NooElec SMA DC Block is a precision-engineered in-line connector designed for 50kHz to 8GHz frequency operation. It blocks DC voltages up to 50V and supports RF power up to 2W, with an ultra-low insertion loss of less than 0.3dB up to 6GHz. Featuring durable laser-etched markings and backed by a 2-year warranty, it’s the professional’s choice for protecting and optimizing RF test equipment and radio setups.

## Description

A high-quality in-line SMA DC Block. 50kHz-8GHz operation. The maximum power is 2W and maximum blocking voltage is 50V. Insertion loss of <0.3dB below 6GHz and <0.8dB below 8GHz. Max VSWR is <1.2 below 6GHz and <1.3 below 8GHz. Laser-etched labeling. Full 2 year support & service!

Review: Works perfectly fine - Despite the high price, this works perfectly.
Review: Good product - My LNA module wasn’t working properly without it.

## Features

- A high-quality in-line SMA DC Block designed for operation from 50kHz-8GHz
- Designed to block a voltage of up to 50V and for a maximum RF power of 2W
- Insertion loss of less than 0.3dB all the way up to 6GHz
- The outer markings are laser-etched to ensure longevity of the labeling for the life of the device
- Full 2 year support & service direct through Nooelec

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07YYLHJKS |
| Best Sellers Rank | 50,034 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 1,500 in Audio & Video Adapters |
| Brand | NooElec |
| Brand Name | NooElec |
| Colour | Silver |
| Compatible Devices | Cell Phones, Game Consoles, Headset, Tablets, Laptop, Cameras, Amplifiers, Speakers, Monitors, Projectors, PC, MP3 Players, Musical Instruments, Printers, GPS |
| Compatible devices | Cell Phones, Game Consoles, Headset, Tablets, Laptop, Cameras, Amplifiers, Speakers, Monitors, Projectors, PC, MP3 Players, Musical Instruments, Printers, GPS Compatible devices Cell Phones, Game Consoles, Headset, Tablets, Laptop, Cameras, Amplifiers, Speakers, Monitors, Projectors, PC, MP3 Players, Musical Instruments, Printers, GPS See more |
| Connector Type | SMA |
| Connector type | SMA |
| Country of Origin | USA |
| Current Rating | 50 Amps |
| Customer Reviews | 4.4 out of 5 stars 209 Reviews |
| Input Voltage | 50 Volts |
| Item Dimensions | 20 x 10 x 10 millimetres |
| Item Weight | 5 Grams |
| Item dimensions L x W x H | 20 x 10 x 10 millimetres |
| Manufacturer | Nooelec Inc. |
| Model Number | Nooelec 8GHz SMA DC Block |
| Nominal Power | 2 Watts |
| Number of Items | 1 |
| Number of Ports | 1 |
| Package Quantity | 1 |
| Power Plug Type | No Plug |
| Product Finish Type | Laser |
| Specific Uses For Product | Antenna |
| Specific uses for product | Antenna |
| UPC | 616469146625 |
| Warranty Type | Limited |

## Product Details

- **Colour:** Silver
- **Connector type:** SMA
- **Item dimensions L x W x H:** 20 x 10 x 10 millimetres
- **Specific uses for product:** Antenna

## Images

![NooElec SMA DC Block In-Line 50 Ohm 50kHz-8GHz Connector Blocks DC Voltage from your Radio or RF Test Equipment. Ultra-Low Insertion Loss (<0.3dB to 6GHz) and 2 Watts Maximum Power - Image 1](https://m.media-amazon.com/images/I/61P600j7t3L.jpg)

## Questions & Answers

**Q: Is this an inner/outer dc block? in other words, does it block dc through the center conductor and the through the outer shield?**
A: There is no way for it to block power through the outer shield as there is no insulator on the exterior metal. Power is only blocked through the center connection.

**Q: Does this go in between the lna and the sdr or betwen the lna and the antenna ?**
A: Hi, it depends on what you are using it for!  If you contact us at support.nooelec.com with details we'll be happy to help, thanks :)

**Q: Is this what you use between noaa and goes lnas and the sdrs nooelec makes? is it enough to use the power plugs for the lna's?**
A: Its to protect your SDR from the power an LNA uses that might feed back through the antenna connection. For that it's worked great for me.

**Q: which way do I connect this?**
A: Doesn't matter.  Thanks

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works perfectly fine
*by L***N on 14 February 2024*

Despite the high price, this works perfectly.

### ⭐⭐⭐⭐⭐ Good product
*by A***S on 12 May 2020*

My LNA module wasn’t working properly without it.

### ⭐⭐⭐ Highly priced
*by L***S on 20 August 2020*

Not bad but very expensive for what it is. Bought it just because I trust the brand. Nasty price though.

## Frequently Bought Together

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-26*