Product Overview
The MLA-100-4MF Series is a premium range of 100W High Power RF Attenuators designed for comprehensive coverage across DC-3GHz (including 2G/3G/4G/LTE bands). These attenuators are critical for IBS and DAS systems, providing precise signal reduction with exceptional power handling. Equipped with 4.3-10 Male to Female connectors, they offer superior stability and low VSWR, making them the ideal choice for carrier-grade network optimization and testing.
Technical & Mechanical Specifications
| Model No. | MLA-100-4MF-03 | MLA-100-4MF-06 | MLA-100-4MF-10 | MLA-100-4MF-15 | MLA-100-4MF-20 | MLA-100-4MF-30 |
| Freq(MHz) | DC-3GHz | |||||
| Attenuation(dB) | 3 | 6 | 10 | 15 | 20 | 30 |
| Accuracy(dB) | ±0.5 | ±0.5 | ±0.8 | ±1.0 | ±1.2 | ±1.5 |
| VSWR | ≤1.2 | |||||
| Average Power(W) | 100 | |||||
| Impedance | 50 ohm | |||||
| Connector | 4.3-10 M-F | |||||
| Color | Black | |||||
| Ambient Temp(deg) | -35~+75 | |||||
| Relative Humidity | 5%-95% | |||||
NOTE: Our 100W attenuators are designed for wide-band DC-3GHz coverage and feature high-precision accuracy. All specifications can be modified to meet specific customer requirements, including alternative connector types or higher power ratings.
Frequently Asked Questions
- Q1: Why is a 100W power rating necessary for IBS and DAS systems?
- A: In high-density DAS/IBS environments, signals from multiple high-power carriers are often combined. A 100W attenuator provides the necessary headroom to handle these high-energy inputs safely, preventing overheating and ensuring long-term system stability without signal degradation.
- Q2: What are the advantages of 4.3-10 connectors in high-power RF applications?
- A: The 4.3-10 connector is specifically designed for low PIM (Passive Intermodulation) and high reliability. Compared to traditional N-type connectors, it offers a more robust mechanical connection and better electrical performance, making it the industry standard for modern 4G LTE and 5G infrastructure.
- Q3: How does the attenuation accuracy (±0.5dB to ±1.5dB) impact measurements?
- A: Accuracy ensures that the actual signal reduction is as close as possible to the nominal value. For example, ±0.5dB accuracy on a 3dB attenuator is critical for precise signal leveling in lab tests, ensuring that your measurement results are both repeatable and dependable.
- Q4: Can this attenuator withstand harsh ambient conditions?
- A: Yes. It is rated for operation from -35°C to +75°C with a humidity tolerance of up to 95%. The black-anodized cooling fins are designed for natural convection, efficiently dissipating 100W of heat even in enclosed or high-temperature environments.
- Q5: How do I select the right dB value for my application?
- A: Selection depends on your target signal level. Use lower values (3-6dB) for fine-tuning signal strength, and higher values (20-30dB) for significant power reduction, such as protecting a sensitive spectrum analyzer input from a high-power transmitter output.
Mechanical Drawing

























































