MCE-ATTN SERIES
Attenuatores Coaxiales Fixi
MCE-ATTN Series Fixed Coaxial Attenuators & DC block
Engineered for absolute signal level accuracy and high thermal stability. Direct manufacturer access to VNA-verified laboratory and high-power series.
Engineering Assurance
Zero Deviation.
Absolute Control.
In high-frequency signal management, “close enough” is an uncertainty. Marconie attenuators eliminate the margin of error through meticulous material selection and 100% VNA sweep verification. From laboratory calibration to base station transmitter protection, our components serve as the gold standard for signal integrity.
Lab Precision
± 0.5 dB
Frequency Range
Upto DC - 40 GHz
Power Options
Up to 25W
Laboratory Precision
2W Precision Series
SMA jack to SMA plug fixed RF attenuator with straight configuration, designed for 50-ohm systems. Operates from DC to 18 GHz with low VSWR and accurate attenuation. Suitable for RF test, measurement, and communication applications requiring compact size and reliable performance.
Range
DC - 18 GHz
Accuracy
± 0.5 dB
VSWR
≤ 1.35
Housing
Passivated SS
Infrastructure Grade
25W High-Power Series
RF attenuator assembly with SMA jack to SMA plug connectors, straight configuration. Designed for 50-ohm impedance applications with operating frequency from DC to 6 GHz. Provides stable attenuation with low VSWR and reliable performance for RF test, measurement, and communication systems.
Range
DC - 6 GHz
Cooling
Active Heatsink
VSWR
≤ 1.25
Rating
25W Continuous
MCE-ATTN SMA Fixed Attenuator & DC block Series
The MCE-ATTN series comprises precision SMA fixed attenuators designed for RF and microwave applications. Built with a passivated stainless steel body and BeCu gold-plated contacts, these attenuators deliver consistent, reliable signal attenuation across a broad frequency range. Available in multiple attenuation values with SMA Jack-to-Plug (straight) configuration, they are RoHS compliant and rated for extended operating temperatures from −40 °C to +125 °C.
SMA Fixed Attenuator – DC to 6 GHz MCE-ATTN Series · 50 Ω · Unidirectional · Male to Female / Straight
| Part No | Connector A | Configuration | Connector B | Gender | Orientation | Frequency | VSWR | Impedance | Length | Accuracy | Heat Sink |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MCE-ATTN-03-25-06G-SMAMF-01 | SMA | Straight–Straight | SMA | Male to Female | Straight–Straight | DC–6 GHz | ≤1.25 | 50 Ω | 75 ± 3 mm |
3 dB ±0.6Fixed Attenuator
|
YES |
| MCE-ATTN-06-25-06G-SMAMF-01 | SMA | Straight–Straight | SMA | Male to Female | Straight–Straight | DC–6 GHz | ≤1.25 | 50 Ω | 75 ± 3 mm |
6 dB ±0.6Fixed Attenuator
|
YES |
| MCE-ATTN-10-25-06G-SMAMF-01 | SMA | Straight–Straight | SMA | Male to Female | Straight–Straight | DC–6 GHz | ≤1.25 | 50 Ω | 75 ± 3 mm |
10 dB ±0.6Fixed Attenuator
|
YES |
| MCE-ATTN-15-25-06G-SMAMF-01 | SMA | Straight–Straight | SMA | Male to Female | Straight–Straight | DC–6 GHz | ≤1.25 | 50 Ω | 75 ± 3 mm |
15 dB ±0.8Fixed Attenuator
|
YES |
| MCE-ATTN-20-25-06G-SMAMF-01 | SMA | Straight–Straight | SMA | Male to Female | Straight–Straight | DC–6 GHz | ≤1.25 | 50 Ω | 75 ± 3 mm |
20 dB ±0.8Fixed Attenuator
|
YES |
| MCE-ATTN-30-25-06G-SMAMF-01 | SMA | Straight–Straight | SMA | Male to Female | Straight–Straight | DC–6 GHz | ≤1.25 | 50 Ω | 75 ± 3 mm |
30 dB ±1.0Fixed Attenuator
|
YES |
| MCE-ATTN-40-25-06G-SMAMF-01 | SMA | Straight–Straight | SMA | Male to Female | Straight–Straight | DC–6 GHz | ≤1.25 | 50 Ω | 75 ± 3 mm |
40 dB ±1.0Fixed Attenuator
|
YES |
SMA Fixed Attenuator – DC to 18 GHz MCE-ATTN Series · 50 Ω · Male to Female / Straight
| S.no | Part No | Connector A | Configuration | Connector B | Gender | Orientation | Frequency | VSWR | Impedance | Power Rating | Length | Accuracy | Heat Sink |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | MCE-ATTN-01 2-18G-SMAMF-01 | SMA | Straight–Straight | SMA | Male to Female | Straight | DC–18 GHz | ≤ 1.35 | 50 Ω | 2 W | (22 / 25 mm) |
1 dB ±0.5 dBFixed Attenuator
|
NO |
| 2 | MCE ATTN 02 2-18G SMAMF 01 | SMA | Straight–Straight | SMA | Male to Female | Straight | DC–18 GHz | ≤ 1.35 | 50 Ω | 2 W | (22 / 25 mm) |
2 dB ±0.5 dBFixed Attenuator
|
NO |
| 3 | MCE-ATTN 03-2-18G SMAMF-01 | SMA | Straight–Straight | SMA | Male to Female | Straight | DC–18 GHz | ≤ 1.35 | 50 Ω | 2 W | (22 / 25 mm) |
3 dB ±0.5 dBFixed Attenuator
|
NO |
| 4 | MCE-ATTN-05-2-18G-SMAMF-01 | SMA | Straight–Straight | SMA | Male to Female | Straight | DC–18 GHz | ≤ 1.35 | 50 Ω | 2 W | (22 / 25 mm) |
5 dB ±0.5 dBFixed Attenuator
|
NO |
| 5 | MCE-ATTN-06-2-18G-SMAMF-01 | SMA | Straight–Straight | SMA | Male to Female | Straight | DC–18 GHz | ≤ 1.35 | 50 Ω | 2 W | (22 / 25 mm) |
6 dB ±0.5 dBFixed Attenuator
|
NO |
| 6 | MCE-ATTN-10-2-18G-SMAMF-01 | SMA | Straight–Straight | SMA | Male to Female | Straight | DC–18 GHz | ≤ 1.35 | 50 Ω | 2 W | (22 / 25 mm) |
10 dB ±0.5 dBFixed Attenuator
|
NO |
| 7 | MCE-ATTN-20-2-18G-SMAMF-01 | SMA | Straight–Straight | SMA | Male to Female | Straight | DC–18 GHz | ≤ 1.35 | 50 Ω | 2 W | (22 / 25 mm) |
20 dB ±0.7 dBFixed Attenuator
|
NO |
| 8 | MCE-ATTN-30-2-18G-SMAMF-01 | SMA | Straight–Straight | SMA | Male to Female | Straight | DC–18 GHz | ≤ 1.35 | 50 Ω | 2 W | (22 / 25 mm) |
30 dB ±1.0 dBFixed Attenuator
|
NO |
| 9 | MCE-ATTN-40-2-18G-SMAMF-01 | SMA | Straight–Straight | SMA | Male to Female | Straight | DC–18 GHz | ≤ 1.35 | 50 Ω | 2 W | (22 / 25 mm) |
40 dB ±1.0 dBFixed Attenuator
|
NO |
Precision for the Field
Our interconnects are the backbone of advanced wireless systems, trusted in laboratories and operational theatres where signal fidelity is paramount.
Telecommunications
Signal leveling in base stations and wireless networks.
Aerospace & Defense
Reliable signal control in radar and satellite systems.
Test & Measurement
Protecting sensitive equipment from high-level signals.
Laboratory R&D
Precise calibration and receiver sensitivity testing.
B2B Workflow Efficiency
Expedite Your Attenuator Procurement
For high-volume corporate POs or complex Bill of Materials (BOM) requests involving fixed, step, or programmable attenuators, skip manual configuration. Upload your requirements and our application engineers will respond with a technical proposal within 24 hours.
- Bulk BOM Processing
- Dedicated Engineering Support
- Priority Stock Allocation
- Custom Attenuation Value Support
Precision Guaranteed
Connect with our Chennai-based technical sales team for specialized RF attenuator procurement.
VNA Verified. Traceable Data.
Every Marconie attenuator undergoes 100% Vector Network Analyzer (VNA) verification. We validate insertion loss, return loss, and frequency flatness against your exact attenuation specifications before dispatch.
Standard
NABL & ISO Compliant
Protocol
100% Sweep Verification
Documentation
Serial Link Traceability
Max Frequency
26.5 GHz
High Precision Range
Impedance
50 Ω
Standard RF Reference
Velocity of Propagation
76%
Low Latency Signal Path
Shielding Effectiveness
100 dB
Tri-Shield™ Architecture
Voltage Withstand
1500 V (DC)
Dielectric Strength
- Data derived from Marconie Series 520 Standard Testing. Results may vary ±3% based on connector termination.
Tri-Shield™ Anatomy
Center Conductor
Silver-Plated Copper
Dielectric
Low-Density PTFE
Outer Conductor
Silver Plated Copper Ribbon
Inner Layer
Aluminum Laminate
Outer Shield
Silver Plated Copper
Jacket
High-Durability Polymer
6-Layer Integrity
Optimized shielding layer sequence providing > 100dB isolation—essential for high-density 5G and satellite testing.
VNA Verified. Traceable Data.
Every MCE assembly undergoes 100% Vector Network Analyzer (VNA) verification. We validate VSWR and Insertion Loss against your exact custom specifications before dispatch.
Standard
NABL & ISO Compliant
Protocol
100% Sweep Verification
Documentation
Serial Link Traceability
Knowledge Base
Engineering Support FAQ
Frequency & Attenuation Accuracy
Our attenuators maintain ±0.5 dB accuracy across the rated attenuation value up to 18 GHz, with tighter tolerances available for precision lab-grade configurations upon request.
Power Handling
Marconie attenuators are available in standard (2W), medium (5W), and high-power (50W+) variants. Materials are selected to ensure thermal stability and minimal PIM, sustaining levels below -160 dBc for telecom applications.
Custom Attenuation & Termination Options
We manufacture attenuators with SMA, N-Type, and 2.92mm interfaces in male, female, and bulkhead variants across custom dB values (1 dB–40 dB+) to match your specific test setup or system design.
Corporate Lead Times
Standard configured attenuators dispatch within 72 hours. Custom manufacturing runs (100+ units) typically ship within 10–14 business days.