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The R2040-S series of microwave thin film resistors is designed to be used in microwave hybrid circuits for biasing of active components. These devices can be used over the full military temperature range -55°C to +125°C. Quality and workmanship is per MIL-S-883. Level B. Devices are 100% tested, visual inspected and packaged in waffle packs. US Microwaves employs proprietary thin film technologies for deposition of a wide range of sheet resistance films from 1W/sq to 10.000W /sq. Resistors from 0.1W to x MW range are available.

R(W) USM Part # R(W) USM Part # R(W) USM Part # R(W) USM Part #
1.0 R2040-S-1P0 10 R2040-S-10P0 100 R2040-S-100P0 1000 R2040-S-1000
1.2 R2040-S-1P2 12 R2040-S-12P0 120 R2040-S-120P0 1200 R2040-S-1200
1.5 R2040-S-1P5 15 R2040-S-15P0 150 R2040-S-150P0 1500 R2040-S-1500
1.8 R2040-S-1P8 18 R2040-S-18P0 180 R2040-S-180P0 1800 R2040-S-1800
2.2 R2040-S-2P2 22 R2040-S-22P0 220 R2040-S-220P0 2200 R2040-S-2200
2.7 R2040-S-2P7 27 R2040-S-27P0 270 R2040-S-270P0 2700 R2040-S-2700
3.3 R2040-S-3P3 33 R2040-S-33P0 330 R2040-S-330P0 3300 R2040-S-3300
3.9 R2040-S-3P9 39 R2040-S-39P0 390 R2040-S-390P0 3900 R2040-S-3900
4.7 R2040-S-4P7 47 R2040-S-47P0 470 R2040-S-470P0 4700 R2040-S-4700
5.0 R2040-S-5P0 50 R2040-S-50P0 500 R2040-S-500P0 5000 R2040-S-5000
5.6 R2040-S-5P6 56 R2040-S-56P0 560 R2040-S-560P0 5600 R2040-S-5600
6.8 R2040-S-6P8 68 R2040-S-68P0 680 R2040-S-680P0 6800 R2040-S-6800
7.5 R2040-S-7P5 75 R2040-S-75P0 750 R2040-S-750P0 7500 R2040-S-7500
8.2 R2040-S-8P2 82 R2040-S-82P0 820 R2040-S-820P0 8200 R2040-S-8200

Material Thickness (mils) Die size (mils) Power rating Tolerances q% Capacitance
SiO2/Silicon 10 ±1 (20±2)x(40±2) 200mW@70°C 1, 5, 10 1.9pF

Resistor Conductor Backside metallization
The resistive material is high stability Tantalum Nitride with low temperature coefficient of resistance, <75ppm/°C typical. For Rsq<10W/sq and Rsq>500W/sq, the resistive material is proprietary. The bonding pads of the resistors are 3m thick, 99.99% electroplated gold with a TiW barrier that withstands 30 min at 400°C in air without loss of adhesion. The backside of the die is metallized with TiW/Au which is compatible with most die attaching methods. Other metallizations are available upon special request.


TOLERANCE q MINIMUM ORDER U/P($) /1K U/P($) /5K U/P($) /10K U/P($) /50K U/P($) /100K DELIVERY ORDER
10% 2 weeks ARO for 5% and 10% tolerance and 3-4 weeks ARO for 1%. Certain items are available from Stock

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