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