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SILICON THIN FILM CHIP RESISTORS

R4000-S

The R4000-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 R4000-S-1P0 10 R4000-S-10P0 100 R4000-S-100P0 1000 R4000-S-1000
1.2 R4000-S-1P2 12 R4000-S-12P0 120 R4000-S-120P0 1200 R4000-S-1200
1.5 R4000-S-1P5 15 R4000-S-15P0 150 R4000-S-150P0 1500 R4000-S-1500
1.8 R4000-S-1P8 18 R4000-S-18P0 180 R4000-S-180P0 1800 R4000-S-1800
2.2 R4000-S-2P2 22 R4000-S-22P0 220 R4000-S-220P0 2200 R4000-S-2200
2.7 R4000-S-2P7 27 R4000-S-27P0 270 R4000-S-270P0 2700 R4000-S-2700
3.3 R4000-S-3P3 33 R4000-S-33P0 330 R4000-S-330P0 3300 R4000-S-3300
3.9 R4000-S-3P9 39 R4000-S-39P0 390 R4000-S-390P0 3900 R4000-S-3900
4.7 R4000-S-4P7 47 R4000-S-47P0 470 R4000-S-470P0 4700 R4000-S-4700
5.0 R4000-S-5P0 50 R4000-S-50P0 500 R4000-S-500P0 5000 R4000-S-5000
5.6 R4000-S-5P6 56 R4000-S-56P0 560 R4000-S-560P0 5600 R4000-S-5600
6.8 R4000-S-6P8 68 R4000-S-68P0 680 R4000-S-680P0 6800 R4000-S-6800
7.5 R4000-S-7P5 75 R4000-S-75P0 750 R4000-S-750P0 7500 R4000-S-7500
8.2 R4000-S-8P2 82 R4000-S-82P0 820 R4000-S-820P0 8200 R4000-S-8200

SUBSTRATE INFORMATION RESISTOR SPECIFICATIONS
Material Thickness (mils) Die size (mils) Power rating Tolerances q% Capacitance
SiO2/Silicon 10 ±1 (40±2)x(40±2) 400mW@70°C 1, 5, 10 3.6pF

PROCESS INFORMATION
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.

ORDERING INFORMATION R4000-S-xxPx-q %

TOLERANCE q MINIMUM ORDER U/P($) /1K U/P($) /5K U/P($) /10K U/P($) /50K U/P($) /100K DELIVERY ORDER
10% $320 / 200 pc           2 weeks ARO for 5% and 10% tolerance and 3-4 weeks ARO for 1%. Certain items are available from Stock
5% $320 / 125 pc          
1% $320 / 75 pc          

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