Smiths Interconnect is the world leader in temperature variable attenuators from DC through Ka Band, featuring our patented Thermopad line of products which compensate for gain variation over temperature. The Thermopad® (Patent # 5,332,981) is a totally passive, surface mountable temperature variable attenuator. It requires no bias or control voltages and does not generate distortion. The Thermopad can be used in place of a standard chip attenuator to combine level setting or buffering and temperature compensation in a single chip design. This will reduce component count, increase reliability, and lower costs. Applications include power amplifiers, mixers, MMIC amplifiers, directional couplers and diode detectors.
- Frequency Range from DC to 36 GHz
- Attenuation Values from 1 to 10dB
- Wire Bondable Connections Available
- Negative & Positive Coefficients of Attenuation Available
- Tape and Reel Packaging Available
- Space and Military Qualified
- Impedance 50 and 75 Ohms
- RoHS Compliant Option Available
| Series | Fixed Attenuator Equivalent |
Freq Range |
Max Input Power CW |
Footprint Dimensions |
|---|---|---|---|---|
| Click links below for datasheets | ||||
| TVA | TS03 | DC-6 GHz | 2.0 Watts | 0.122 X 0.145 (in) 3.10 X 3.68 (mm) |
| MTVA | TS05 | DC-18 GHz | 200 mW | 0.075 X 0.060 (in) 1.91 X 1.52 (mm) |
| WTVA | TS09 or TT9 | DC-20 GHz | 200 mW | 0.060 X 0.075 (in) 1.52 X 1.91 (mm) |
| KTVA | KFA | 16-36 GHz | 200 mW | 0.120 X 0.065 (in) 3.05 X 1.65 (mm) |
| K2TVA | Not Available |
17-22 GHz |
200 mW | See Brochure |
| AN5 | AT5 | DC-6 GHz | 200 mW | 0.075 X 0.060 (in) 1.91 x 1.52 (mm) |
| AN7 | AT7 | DC-6 GHz | 100 mW | 0.080 X 0.050 (in) 2.03 X 1.27 (mm) |
| Hi-Rel | ||||
- AN0003-Thermopad Amplifier Temperature Compensation
- AN0004-Thermopad Attenuation Shift Due To Self-Heating
- AN0005-Chip Device Mounting Instructions
- AN0018-Recommended Solder Reflow Temperature Profile for Lead-Free Parts
- AN0025-Recommended Solder Reflow Temperature Profile for Leaded Parts
- AN0010-Proper Storage of Florida RF Labs and EMC Technology Component
- AN006 Wrapped Chip Device Mounting