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T&M Research
Overview
T&M R series high-current, high-power precision resistor coaxial shunt (225/275 Watt), resistance selectable from 0.000125 to 0.01 ohms, suitable for high current
High-wattage models are standard configuration.The specified wattage is based on high-current connections with unrestricted installation.
The case temperature should not exceed 140°F (60°C).
In addition, finned models require airflow of 300 cubic feet per minute (8.6 cubic meters) through the case.
Ambient temperature should not exceed 86°F (30°C).When operating above this temperature, the rated power should be reduced accordingly.
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Specifications
225 Watt Hi-Wattage Units - 12 1/4 Inch Overall Length, 3 3/4 Inch Dia.
| Model | Resistance ohms | Bandpass MHz. | Risetime nsec. | Emax joules | |
| R-700-1 | .01 | 800 | .45 | 700 | |
| R-1400-2 | .005 | 200 | 2 | 1400 | |
| R-2800-4 | .0025 | 48 | 8 | 2800 | |
| R-5600-8 | .00125 | 12 | 30 | 5600 | |
| R-7000-10 | .001 | 8 | 45 | 7000 | |
| R-11,200-16 | .000625 | 3.2 | 113 | 11,200 | |
| R-14,000-20 | .0005 | 2.2 | 164 | 14,000 | |
| R-22,400-32 | .0003 | 1 | 250 | 22,400 | |
| R-28,000-40 | .00025 | .58 | 872 | 28,000 | |
| R-44,800-64 | .00015 | .25 | 2000 | 44,800 |
275 Watt Hi-Wattage Units - 11 3/4 Inch Overall Length, 5 Inch Dia.
| Model | Resistance ohms | Bandpass MHz. | Risetime nsec. | Emax joules | |
| R-7500-8 | .001 | 12 | 30 | 7500 | |
| R-15,000-16 | .0005 | 3.2 | 113 | 15,000 | |
| R-30,000-32 | .00025 | 1 | 250 | 30,000 | |
| R-60,000-64 | .000125 | .25 | 2000 | 60,000 |
| Model | Hi-Wattage | Finned | |
| 12 1/4" 700 watt | 225 watt | 700 watt | |
| 11 3/4" 850 watt | 275 watt | 850 watt |
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* Specifications are subject to change without notice.