RF / Microwave Attenuators
Trilithic offers one of the widest selections of attenuators and test components available. Our general capabilities extend from DC to 18 GHz with power handling up to 1,000 Watts. Most of the products in this section are stocked at the factory. If you have special requirements for any type of attenuator not listed within our web site, please call us for technical assistance.
- Solid State Programmable Attenuators
- High Powered Fixed Attenuators
- High Power High Frequency Fixed Attenuators
- Low Power Fixed Pad Attenuators
- Rotary Step Attenuators
Solid State Programmable Attenuators
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Model
EPA-127-3 SMA
Model
EPA-127-3 SMAFeatures:
- Solid State Reliability 30 MHz to 3 GHz
- Low Insertion Loss
- High Switching Speed
- Price Competitive
Trilithic's new Solid State Programmable Attenuator operates from 30 MHz to 3 GHz. The attenuation range is 0 to 127 dB in 1 dB steps. This product offers low insertion loss, 20 microseconds switching speed and it has TTL control. Please contact the factory for custom needs.
| Specifications | |
|---|---|
| EPA-127-3 SMA | |
| Frequency Range | 30 MHz to 3 GHz |
| Impedance | 50 Ohms nominal |
| Attenuation Range | 0 to 127 dB in 1 dB steps |
| Attenuation Steps | 1, 2, 4, 8, 16, 32 and 64 dB |
| VSWR | 1.6:1 max |
| Accuracy | |
| 1, 2, 4, 8 dB | /- 0.3 dB to 2 GHz |
| 1, 2, 4, 8 dB | /- 0.4 dB to 3 GHz |
| 16, 32, 64 dB | /-
0.5 dB or 3% (whichever is greater) |
| Insertion Loss | 6
dB maximum to 2000 MHz 8 dB maximum to 3000 MHz |
| RF Input Power | 15
dBm operating 30 dBm no damage |
| Switching Speed | 20 microseconds maximum |
| DC Supply | 15
Vdc @ 80 mA nominal -15 Vdc @ 80 mA nominal |
| DC/Control connector | 3M 3793-5303 |
| RF Connectors | SMA Female |
| Operating Temperature Range | 0 ° C to 70 ° C |
| Programming (7lines) | TTL
Low for Thru Path TTL High for Attenuation |
Download Programmable Attenuators Catalog Pages
High Powered Fixed Attenuators
Trilithic's
high power fixed attenuators offer RF input power from 10 Watts up to 1000 Watts
covering broad frequency ranges to 4 GHz. Standard attenuation values (3, 6, 10,
20 and 30) are available with a Type N male /female connector configuration in 4
weeks or less. Other attenuation values and connector configurations are
available upon request.
Trilithic's newest series of HFP Fixed Attenuators are ideal for applications requiring up to 50 Watts of CW RF input power handling capability with accurate attenuation over a DC-4 GHz frequency range. Standard dB values are available for immediate delivery with other dB values available in 4-5 weeks.
| Specifications - High Powered Fixed Attenuators | |||||||||
| HFP-510-4 | HFP-525-4 | HFP-550-4 | HFP-510-18 | HFP-5100-3 | HFP-5150-3 | HFP-5500-3 | HFP-51000-3 | ||
| Impedance | 50 Ohms | 50 Ohms | 50 Ohms | 50 Ohms | 50 Ohms | 50 Ohms | 50 Ohms | 50 Ohms | |
| Frequency Range | DC to 4 GHz | DC to 4 GHz | DC to 4 GHz | DC to1 8 GHz | DC to 3 GHz | DC to 3 GHz | DC to 3 GHz | DC to 3 GHz | |
| Attenuation Values | 3, 6, 10, 20, 30 | 3, 6, 10, 20, 30 | 3, 6, 10, 20, 30 | 3, 6, 10, 20, 30, 40 | 3, 6, 10, 20, 30 | 3, 6, 10, 20, 30 | 3, 6, 10, 20, 30 | 3, 6, 10, 20, 30 | |
| Power | 10 Watts | 25 Watts | 50 Watts | 100 Watts | 150 Watts | 500 Watts | 1000 Watts | ||
| Connector Types | N male/N female | N male/N female | N male/N female | N M/F | N M/F | N M/F | N M/F | N M/F | |
| Input Power | 10 Watts CW | ||||||||
| Accuracy | |||||||||
| DC - 1 GHz | /-.25dB (3, 6, 10, 20 dB) | /-.25dB (3, 6, 10, 20 dB) | /-.25dB (3, 6, 10, 20 dB) | 1-3 dB, /-0.3 dB | 1-3 dB, /-0.3 dB | 1-3 dB, /-0.3 dB | 1-3 dB, /-0.3 dB | ||
| /-.50 dB (30 dB) | /-.50 dB (30 dB) | /-.50 dB (30 dB) | 6 & 10 dB, /-0.4 dB | 6 & 10 dB, /-0.4 dB | 6 & 10 dB, /-0.4 dB | 6 & 10 dB, /-0.4 dB | |||
| 20 dB, /-0.5 dB | 20 dB, /-0.5 dB | 20 dB, /-0.5 dB | 20 dB, /-0.5 dB | ||||||
| 30 dB, /- 0.8 dB | 30 dB, /-0.8 dB | 30 dB, /-0.8 dB | 30 dB, /-0.8 dB | ||||||
| 1 - 4 GHz | /-.50dB (3, 6, 10, 20 dB) | /-.50dB (3, 6, 10, 20 dB) | /-.50dB (3, 6, 10, 20 dB) | ||||||
| /-.75 dB (30 dB) | /-.75 dB (30 dB) | /-.75 dB (30 dB) | |||||||
| 1 - 3 GHz | 1-3 dB, /-0.5dB | 1-3 dB, /-0.5dB | 1-3 dB, /-0.5dB | 1-3 dB, /-0.5dB | |||||
| 6 dB, /-0.6 dB | 6 dB, /-0.6 dB | 6 dB, /-0.6 dB | 6 dB, /-0.6 dB | ||||||
| 10 dB, /-0.8 dB | 10 dB, /-0.8 dB | 10 dB, /-0.8 dB | 10 dB, /-0.8 dB | ||||||
| 20 dB, /-1.0 dB | 20 dB, /-1.0 dB | ||||||||
| 20 dB, /-1.0 dB | 20 dB, /-1.0 dB | 20 dB, /-1.0 dB | 20 dB, /-1.0 dB | ||||||
| Max. VSWR | 30 dB, /-1.3 dB | 30 dB, /-1.3 dB | |||||||
| DC to 1 GHz | 1.15:1 | 1.15:1 | 1.15:1 | 1.10:1 | 1.10:1 | 1.10:1 | 1.10:1 | ||
| 1 to 4 GHz | 1.35:1 | 1.35:1 | 1.35:1 | ||||||
| 1 to 3 GHz | 1.30:1 | 1.30:1 | 1.30:1 | 1.30:1 | |||||
| 18 GHz | 1.35:1 | ||||||||
| Weight | 9 oz. | 1 lb. | 1.45 lbs. | 45 Oz. | 5.5 Lb. | 7.9 Lbs. | 26.5 Lbs. | ||
Download High Power Fixed Catalog Pages
High Power High Frequency Fixed Attenuators
The HFP High Power High Frequency attenuators are bidirectional, convection air-cooled and offer broad bandwidth and low VSWR. These units are rated from 5 to 50 Watts CW and operate to 4 and 6 GHz. Connector options vary by model.
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| Specifications - High Power High Frequency Fixed Attenuators | ||||||||
| HFP-55 | HFP-510 | HFP-5150-8 | HFP-510-18 | HFP-520 | HFP-525 | HFP-550 | ||
| Attenuation Values | 0-30 dB | 0-40 dB | 3, 6, 10, 20, 30, 40 | 3, 6, 10, 20, 30, 40 | 3, 6, 10, 20 and 30 dB | 3-40 dB | 3-40 dB | |
| 31-60 dB | ||||||||
| Impedance | 50 Ohms | 50 Ohms | 50 Ohms | 50 Ohms | 50 Ohms | 50 Ohms | 50 Ohms | |
| Frequency Range | DC to 6 GHz | DC to 6 GHz | DC to 8 GHz | DC to 18GHz | DC to 4 GHz | DC to 6 GHz | DC to 6 GHz | |
| Accuracy | 0-6 dB, /- 0.3 dB | 0-6 dB, /- 0.3 dB | 3-20 dB, /- 0.25 dB | 3-6 dB, /- 0.3 dB | 3-6 dB, /- 0.3 dB | |||
| 7-20 dB, /- 0.5 dB | 7-20 dB, /- 0.5 dB | 21-30 dB, /- 0.75 dB | 7-20 dB, /- 0.5 dB | 7-20 dB, /- 0.5 dB | ||||
| 21-30 dB, /- 0.75 dB | 21-40 dB, /- 0.7 dB | 3-20 dB, /- 0.5 dB | 21-30 dB, /- 0.75 dB | 21-30 dB, /- 0.75 dB | ||||
| 31-60 dB, /- 1.5 dB | 21-30 dB, /- 0.75 dB | 31-40 dB, /- 1.0 dB | 31-40 dB, /- 1.0 dB | |||||
| Max. VSWR | 1.20:1 | 1.25:1 | ||||||
| DC to 1 GHz | 1.10:1 | |||||||
| DC to 4 GHz | 1.15:1 | |||||||
| Dc to 6 GHz | 1.20:1 | |||||||
| 1 GHz to 4 GHz | 1.15:1 | |||||||
| 4 GHz to 6 GHz | 1.20:1 | |||||||
| 4 GHz | 1.20:1 | |||||||
| 8 GHz | 1.30:1 | |||||||
| 18 GHz | 1.35:1 | |||||||
| Power | 150 Watts | 50 Watts | ||||||
| CW | 5 Watts (25 C) | 10 Watts (25 C) | 20 Watts (25 °C) | 25 Watts (25 C) | 50 Watts (25 C) | |||
| Peak | 250 Watts, 5 Sec. Pulse | 500 Watts, 5 Sec. Pulse | 1 kW, 5 Sec. Pulse | 500 Watts, 5 Sec. Pulse | 500 Watts, 5 Sec. pulse | |||
| Operating Temperature | -65 ° to 125°C | -65° to 125°C | -65 ° to 125 °C | -65 ° to 125 °C | -65 ° to 125 °C | |||
| Connector Types | N, SMA, and TNC (M/F) | N, SMA (M/F) | N M/F | N | N (M/F) | SMA and N (M/F) | SMA and N (M/F) | |
Download High Power High Frequency Fixed Catalog Pages
Low Power Fixed Pad Attenuators
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Features:
Features:- DC - 18 GHz
- 2 Watts
- High Accuracy
- Excellent VSWR
- Various Connector Types
- Very Economical
The XFP-18 SMA is a miniature DC-18 GHz attenuator meeting the requirements of Mil-A-3933. The XFP-18 N also operates to 18 GHz. Both units are available in a wide range of attenuation values, and are suitably priced for large volume OEM applications.
| Specifications | |
|---|---|
| XFP-18 series | |
| Frequency Range | DC to 18 GHz |
| Impedance | 50 Ohms |
| Attenuation | 3, 6 ,10. 20 & 30 dB consult factory for other values |
| Average Power | 2 Watts CW (25 Degrees C) |
| Temperature | -65 to 125 C |
| Accuracy | 0-6
dB /- 0.3 dB 7-20 dB /- 0.5 dB 30 dB /- 0.75 dB |
| VSWR | DC
- 4.0 GHz 1.15:1 4 - 12.4 GHz 1.20:1 DC - 12.4 GHz 1.35:1 |
| Connector | N male/female, SMA male/female |
Download the Fixed Attenuators Catalog Pages
Trilithic's
RSA series rotary attenuators are recognized worldwide as the standard for
durable, precise signal level control. The series is divided into both 50 and 75
ohm units with attenuation as high as 110 dB dynamic range (in 10 dB steps), or
as low as 1 dB range ( in 0.1 dB steps). A firm, snap action detent locks in the
desired attenuation as indicated on the supplied control knob. Low VSWR and
insertion loss is assured throughout the range of each unit with tightly
controlled pad values and machining tolerances.
Rotary Step Attenuator Features:
- Wide Frequency Range
- High Accuracy Rate
- Low VSWR
- Price Competitive
- Flexible Design Configurations
Trilithic's new state-of-the-art rotary step attenuators are designed for precision control of signal levels in the DC to 3.0 GHz range and are offered in a wide choice of values and increments. This new design allows for greater automation of assembly and unprecedented low cost. Please contact the factory for your custom attenuator needs.
| Specifications - Rotary Step Attenuators | |||||||
| RSA-3501 | RSA-3510 | RSA-35100 | |||||
| Frequency Range | DC to 1GHz | DC to 3 GHz | DC to 3 GHz | ||||
| Impedance | 50 Ohms | 50 Ohms | 50 Ohms | ||||
| Attenuation | 0 - 1 by .1 db | 0 - 10 by 1 dB | 0 - 100 by 10 dB | ||||
| Average Power | 2 Watts (25 Degrees C) | 2 Watts (25 Degrees C) | 2 Watts (25 Degrees C) | ||||
| Switching Life | 200,000 Steps Minimum | 200,000 Steps Minimum | 200,000 Steps Minimum | ||||
| Rotation | Clockwise for increasing | Clockwise for increasing | Clockwise for increasing | ||||
| attenuation in 30 degree indexing | attenuation in 30 degree indexing | attenuation in 30 degree indexing | |||||
| Connectors | Female: SMA, BNC, TNC, N | Female: SMA, BNC, TNC, N | Female: SMA, BNC, TNC, N | ||||
| (BNC not recommended above 1 GHz) | (BNC not recommended above 1 GHz) | ||||||
| Housing | Aluminum and Zinc | Aluminum and Zinc | Aluminum and Zinc | ||||
| Knobs | Knobs are included with every attenuator | Knobs are included with every attenuator | Knobs are included with every attenuator | ||||
| Insertion Loss | 0.0-1.0 GHz 0.9 dB max | 0 - 1.0 GHz 0.3 dB max | 0.0 - 1.0 GHz 0.25 dB max | ||||
| 1.0 - 2.0 GHz 0.5 db max | 1.0 - 2.0 GHz 0.50 dB max | ||||||
| 2.0 - 3.0 GHz 0.7 db max | 2.0 - 3.0 GHz 0.75 dB max | ||||||
| 3.0 - 4.0 GHz 1.10 dB max | |||||||
| Accuracy | DC - 1.0 GHz /- 0.05 dB | 0 - 1.0 GHz /- 0.25 dB | 0.0-1.0 GHz /- 0.25 dB or 1.5%* | ||||
| 1.0 - 2.0 GHz /- 0.35 dB | 1.0-2.0 GHz /- 0.35 dB or 2%* | ||||||
| 2.0 - 3.0 GHz /- 0.50 dB | 2.0-2.5 GHz /- 0.50 dB or 2%* 3% | ||||||
| 2.5-3.0 GHz 0.50 dB or 3%* 6% | |||||||
| *Whichever is greater | |||||||
| VSWR/ Return Loss | FREQUENCY RANGE VSWR | FREQUENCY RANGE VSWR | FREQUENCY RANGE VSWR | ||||
| DC - 1.0 GHz 1.25:1 max 19.1 dB max | DC - 1.0 GHz 1.25:1 max 19.1 dB max | 0.0-1.0 GHz 1.25:1 max 19.1 dB max | |||||
| 1.0 - 2.0 GHz 1.35:1 max 16.5 dB max | 1.0-2.0 GHz 1.35:1 max 16.5 dB max | ||||||
| 2.0 - 3.0 GHz 1.50:1 max 14.0 dB max | 2.0-3.0 GHz 1.50:1 max 14.0 dB max | ||||||