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HASCO Fixed RF Attenuators | DC to 65 GHz, 0.5 to 10 W
Complete Fixed-Attenuator Series from DC to 65 GHz
Set RF levels, protect sensitive instruments and improve system matching with 50-ohm coaxial attenuators in Type N, SMA, 2.92 mm, 2.4 mm and 1.85 mm interfaces.
Control amplitude without changing the signal-path architecture.
A fixed attenuator inserts a defined loss between two 50-ohm ports. Select the RF interface and operating band first, then confirm attenuation accuracy, VSWR, average and peak power, temperature derating and mechanical clearance.
Protect instruments
Reduce input power before power meters, receivers, detectors and other sensitive ports.
Set test levels
Establish repeatable signal levels in benches, fixtures and production test systems.
Improve source/load match
Add controlled loss to reduce the mismatch interaction seen by adjacent RF components.
Extend dynamic range
Bring higher signal levels into the usable measurement range of test equipment.
Five interfaces cover general-purpose RF through 65 GHz.
Series ratings shown below are family-level selection values. Available dB increments and exact electrical limits vary by model; use the individual product datasheet for final design verification.
HA18N5W / HA18N10W
5 or 10 W · 1-40 dB · heat-sink body
HA3A / HA6A / HA18A / HA26A
2 W compact plus 5 and 10 W heat-sink options
HA40A / HA40A2
0.5 or 2 W · 1-30 dB · stainless steel
HA50A / HA50A1
0.5 or 1 W · 1-30 dB · stainless steel
HA65A
Up to 1 W listed · 1-30 dB · stainless steel
Match interface, bandwidth, attenuation and power.
| Series | Interface | Frequency | Average power | Attenuation range | Body |
|---|---|---|---|---|---|
| HA18N5W / HA18N10W | N male-female | DC-18 GHz | 5 / 10 W | 1-40 dB | Black aluminum heat sink |
| HA18A / HA18A5W / HA18A10W | SMA male-female | DC-18 GHz | 2 / 5 / 10 W | Model dependent, to 40 dB | Stainless or heat sink |
| HA26A | SMA male-female | DC-26 GHz | 2 W | Model dependent, to 30 dB | Passivated stainless steel |
| HA40A / HA40A2 | 2.92 mm male-female | DC-40 GHz | 0.5 / 2 W | 1-30 dB | Passivated stainless steel |
| HA50A / HA50A1 | 2.4 mm male-female | DC-50 GHz | 0.5 / 1 W | 1-30 dB | Passivated stainless steel |
| HA65A | 1.85 mm male-female | DC-65 GHz | Model/datasheet dependent | 1-30 dB | Passivated stainless steel |
Power-rating note: published HA65A page headings and detailed model specifications are not fully consistent. Verify the selected part's current datasheet and required temperature derating before applying RF power.
Fixed attenuation for laboratory, production and deployed RF systems.
Test and measurement
Protect analyzer and meter inputs while creating repeatable bench levels.
Receiver protection
Reduce high-level signals before sensitive receiver and detector stages.
Amplifier leveling
Set drive levels and improve the match presented to active devices.
System integration
Build known path loss into communications, radar and microwave assemblies.
Specify the attenuator around the real operating condition.
Match connector family, gender and required frequency rating.
Confirm dB tolerance, VSWR and power across the operating band.
Apply the published derating curve at the attenuator body temperature.
HASCO is AS9120:B and ISO 9001:2015 certified.
Request a HASCO Fixed-Attenuator Quote
Include the interface, attenuation value, frequency range, average and peak power, operating temperature, quantity and requested delivery date.
Start Your Quote RequestCall 888.498.3242 or email sales@hasco-inc.com
