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The R1500-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 R1500-S-1P0 10 R1500-S-10P0 100 R1500-S-100P0 1000 R1500-S-1000
1.2 R1500-S-1P2 12 R1500-S-12P0 120 R1500-S-120P0 1200 R1500-S-1200
1.5 R1500-S-1P5 15 R1500-S-15P0 150 R1500-S-150P0 1500 R1500-S-1500
1.8 R1500-S-1P8 18 R1500-S-18P0 180 R1500-S-180P0 1800 R1500-S-1800
2.2 R1500-S-2P2 22 R1500-S-22P0 220 R1500-S-220P0 2200 R1500-S-2200
2.7 R1500-S-2P7 27 R1500-S-27P0 270 R1500-S-270P0 2700 R1500-S-2700
3.3 R1500-S-3P3 33 R1500-S-33P0 330 R1500-S-330P0 3300 R1500-S-3300
3.9 R1500-S-3P9 39 R1500-S-39P0 390 R1500-S-390P0 3900 R1500-S-3900
4.7 R1500-S-4P7 47 R1500-S-47P0 470 R1500-S-470P0 4700 R1500-S-4700
5.0 R1500-S-5P0 50 R1500-S-50P0 500 R1500-S-500P0 5000 R1500-S-5000
5.6 R1500-S-5P6 56 R1500-S-56P0 560 R1500-S-560P0 5600 R1500-S-5600
6.8 R1500-S-6P8 68 R1500-S-68P0 680 R1500-S-680P0 6800 R1500-S-6800
7.5 R1500-S-7P5 75 R1500-S-75P0 750 R1500-S-750P0 7500 R1500-S-7500
8.2 R1500-S-8P2 82 R1500-S-82P0 820 R1500-S-820P0 8200 R1500-S-8200

Material Thickness (mils) Die size (mils) Power rating Tolerances q% Capacitance
SiO2/Silicon 10 ±1 (15±2)x(15±2) 50mW@70°C 1, 5, 10 0.55pF

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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