3.5mm Attenuator
3.5mm Attenuators are precision RF and microwave components designed to reduce RF signal power while maintaining excellent impedance matching, low VSWR, and superior signal integrity. These attenuators are widely used in RF testing, microwave communication, aerospace, defense, satellite communication, radar systems, wireless infrastructure, and laboratory calibration where accurate signal level control is essential. Supporting frequencies from DC to 26.5 GHz, 3.5mm Attenuators deliver outstanding electrical performance for high-frequency applications.
At SRFS Teleinfra, we manufacture premium-quality 3.5mm Attenuators using precision thin-film resistor technology, premium-grade stainless steel, gold-plated contacts, and advanced CNC machining processes. Our attenuators provide accurate attenuation, excellent return loss, low insertion loss, and dependable long-term performance in demanding RF and microwave environments.
All our 3.5mm Attenuators are manufactured in India under stringent quality control procedures. Every attenuator undergoes comprehensive electrical and mechanical testing to ensure consistent attenuation accuracy, excellent RF performance, and long operational life.
What is a 3.5mm Attenuator?
A 3.5mm Attenuator is a passive RF device that reduces the power level of an RF or microwave signal by a fixed attenuation value while maintaining a constant 50 Ohm impedance. It protects sensitive RF equipment, minimizes signal reflections, improves measurement accuracy, and ensures proper signal conditioning in high-frequency systems.
The precision 3.5mm connector supports microwave frequencies up to 26.5 GHz, making it ideal for laboratory measurements, RF calibration, microwave communication, and production testing.
Technical Specifications
Our 3.5mm Attenuators are engineered for demanding RF and microwave applications.
Impedance
Standard 50 Ohm impedance for accurate impedance matching.
Frequency Range
Supports frequencies from DC to 26.5 GHz.
Attenuation Values
Available in:
- 1 dB
- 2 dB
- 3 dB
- 5 dB
- 6 dB
- 10 dB
- 15 dB
- 20 dB
- 30 dB
- 40 dB
- 50 dB
- 60 dB
- Custom Values
Power Rating
Available from 2 Watts to 100 Watts depending on application requirements.
VSWR
Low VSWR for excellent return loss and highly accurate RF measurements.
Connector Interface
Precision 3.5mm Male and Female connectors for repeatable microwave performance.
Materials
Manufactured using stainless steel, brass, gold-plated beryllium copper contacts, PTFE dielectric, and precision thin-film resistor technology.
Compliance
Manufactured according to international RF and microwave quality standards.
Applications of 3.5mm Attenuators
Our 3.5mm Attenuators are widely used in:
- Vector Network Analyzer (VNA) calibration
- RF & microwave laboratories
- RF production testing
- Aerospace communication
- Defense electronics
- Satellite communication
- Radar systems
- Microwave communication
- Test & measurement equipment
- Semiconductor testing
- Research & Development laboratories
- Calibration laboratories
- High-frequency communication systems
- Industrial RF applications
- Wireless communication systems
Types of 3.5mm Attenuators
Fixed 3.5mm Attenuator
Provides a constant attenuation value for precise RF signal level control.
Precision 3.5mm Attenuator
Designed for laboratory-grade measurements with high attenuation accuracy.
Low Power 3.5mm Attenuator
Suitable for RF testing, calibration, and laboratory applications.
High Power 3.5mm Attenuator
Designed for higher RF power handling while maintaining stable electrical performance.
Male to Female 3.5mm Attenuator
The most common inline attenuator configuration for microwave systems.
Custom 3.5mm Attenuator
Available with customized attenuation values, power ratings, and connector configurations.
Key Performance Features
Choosing the right 3.5mm Attenuator ensures reliable microwave performance and accurate RF signal conditioning.
- Precision 50 Ohm impedance
- Frequency support up to 26.5 GHz
- Accurate attenuation values
- Low VSWR
- Excellent return loss
- Low insertion loss
- Multiple power ratings
- Precision 3.5mm connectors
- Superior mechanical durability
- High thermal stability
- Precision CNC machining
- Long operational life
High-quality 3.5mm Attenuators improve RF measurement accuracy, protect valuable RF equipment, reduce signal reflections, and provide reliable RF signal conditioning for aerospace, defense, telecom, satellite communication, radar systems, and microwave laboratories.
Product Specifications
| Product Type | Impedance | Frequency Range | Application |
|---|---|---|---|
| 3.5mm Fixed Attenuator | 50 Ohm | DC to 26.5 GHz | RF Signal Attenuation |
| 3.5mm Precision Attenuator | 50 Ohm | DC to 26.5 GHz | Vector Network Analyzer (VNA) |
| 3.5mm Low Power Attenuator | 50 Ohm | DC to 26.5 GHz | Laboratory RF Measurements |
| 3.5mm High Power Attenuator | 50 Ohm | DC to 26.5 GHz | High Power RF Systems |
| 3.5mm Male to Female Attenuator | 50 Ohm | DC to 26.5 GHz | RF Test Equipment |
| 3.5mm 3 dB Attenuator | 50 Ohm | DC to 26.5 GHz | Signal Level Control |
| 3.5mm 10 dB Attenuator | 50 Ohm | DC to 26.5 GHz | Microwave Communication |
| 3.5mm 20 dB Attenuator | 50 Ohm | DC to 26.5 GHz | RF Calibration |
| 3.5mm 30 dB Attenuator | 50 Ohm | DC to 26.5 GHz | RF Production Testing |
| 3.5mm Precision RF Attenuator | 50 Ohm | DC to 26.5 GHz | Aerospace & Defense Systems |
Why Choose us
Precision RF Engineering
Our 3.5mm Attenuators are manufactured to deliver highly accurate attenuation, excellent electrical performance, and dependable microwave operation.
Low VSWR & Excellent Return Loss
Designed to minimize signal reflections and maximize RF transmission efficiency throughout the operating frequency range.
Premium Manufacturing Quality
Using advanced CNC machining, precision resistor technology, and premium materials, we manufacture attenuators suitable for demanding industrial, laboratory, aerospace, and defense applications.
Manufactured in India
All our 3.5mm Attenuators are manufactured in India under strict quality control procedures, ensuring reliable performance, competitive pricing, and timely delivery.
Frequently Asked Questions
A 3.5mm Attenuator is a passive RF device that reduces RF signal power by a fixed attenuation value while maintaining a constant 50 Ohm impedance.
Most precision 3.5mm Attenuators support frequencies from DC to 26.5 GHz.
Standard attenuation values include 1 dB, 2 dB, 3 dB, 5 dB, 6 dB, 10 dB, 20 dB, 30 dB, 40 dB, 50 dB, and 60 dB.
They are manufactured with a precision 50 Ohm impedance.
They are widely used in RF testing, VNA calibration, aerospace, defense, microwave communication, radar systems, satellite communication, and laboratory measurements.
Power ratings are available from 2 Watts to 100 Watts, depending on the model.
Yes. SRFS Teleinfra manufactures customized 3.5mm Attenuators with specific attenuation values, power ratings, and connector configurations.
Yes. All our 3.5mm Attenuators are manufactured in India using premium materials, precision engineering, and comprehensive quality testing.
Yes. They are extensively used with Vector Network Analyzers, spectrum analyzers, signal generators, and RF calibration systems.
SRFS Teleinfra offers precision-engineered 3.5mm Attenuators with outstanding RF performance, customized solutions, stringent quality control, competitive pricing, fast delivery, and expert technical support.