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QFX
Vishay Electro-Films
Thin Film, Top-Contact Megohm Resistor
CHIP RESISTORS
FEATURES
Product may not be to scale
* Chip size: 0.050 inches square
The QFX series, tantulum nitride on quartz resistor chips combine high resistance with low shunt capacitance. These offer one of the best combinations of small size, frequency response and high value available. The QFXs are manufactured using Vishay Electro-Films (EFI) sophisticated thin film equipment and manufacturing technology. The QFXs are 100% electrically tested and visually inspected to MIL-STD-883.
* Resistance range: 500k to 10M
* Quartz substrate: < 0.1pF shunt capacitance
* Resistor material: tantalum nitride, self-passivating
APPLICATIONS
The QFX series resistor chips are designed for circuits requiring high values with lower shunt capacitance for higher frequency of operation.
TEMPERATURE COEFFICIENT OF RESISTANCE, VALUES AND TOLERANCES
Tightest Standard Tolerance Available 0.1% 0.5%
PROCESS CODE CLASS H* 012 009 013 014 *MIL-PRF-38534 CLASS K* 174 175 176 177
50ppm/C 100ppm/C 250ppm/C 350ppm/C
500K
1M 2.0M 4.2M
10M
STANDARD ELECTRICAL SPECIFICATIONS
PARAMETER Noise, MIL-STD-202, Method 308 Moisture resistance, MIL-STD-202 Method 106 Stability, 1000 hours, + 125C, 10mW Operating temperature range Thermal shock, MIL-STD-202, Method 107, Test condition F High temperature exposure, + 150C, 100 hours Dielectric voltage breakdown Insulation resistance Operating voltage DC power rating at + 70C (derated to zero at + 175C) 5 x rated power short-time overload, + 25C, 5 seconds - 12dB typical 0.5% maximum R/R 0.5% maximum R/R - 55C to + 125C 0.25% maximum R/R 0.5% maximum R/R 400V 1012 minimum 400V maximum 20mW 0.25% maximum R/R
VISHAY ELECTRO-FILMS * FRANCE +33.4.93.37.28.24 FAX: +33.4.93.37.27.31 * GERMANY +49.9287.710 FAX: +49 9287.70435 * ISRAEL +972.3.557.0945 FAX: +972.3.558.9121 * ITALY + 39.2.300.11911 FAX: +39.2.300.11999 * JAPAN +81.42.729.0661 FAX: +81.42.729.3400 * SINGAPORE +65.788.6668 FAX: +65.788.0988 * SWEDEN +46.8.594.70590 FAX: +46.8.594.70581 * UK +44 191 514 8237 FAX: +44 1953 457 722 * USA: (401) 738-9150 FAX: (401) 738-4389
www.vishay.com 52
Document Number: 61031 Revision 07-Aug-01
QFX
Thin Film, Top-Contact Megohm Resistor
DIMENSIONS in inches
CHIP RESISTORS
0.050
Vishay Electro-Films
0.045
0.050
0.005
SCHEMATIC
0.005
MECHANICAL SPECIFICATIONS in inches
PARAMETER Chip size Chip thickness Chip substrate material Resistor material Bonding pad Number of pads Pad material Backing OPTIONS: Gold bonding pads, 15 kA minimum Consult Applications Engineer 0.050 x 0.050 0.003 (1.25 x 1.25 0.75mm) 0.010 0.002 (0.254 0.05mm) Quartz Tantalum nitride, self-passivating 0.005 x 0.005 (0.127 x 0.127mm) 2 10kA minimum aluminum None, lapped quartz
ORDERING INFORMATION
Example: 100% visualled, 5M, 1%, 350ppm/C TCR, 50 mil, Aluminum Pads, Class H P/N: W INSPECTION /PACKAGING QFX PRODUCT FAMILY 014 PROCESS CODE See Process Code table 5000 RESISTANCE VALUE Use first 4 significant digits of resistance 3 MULTIPLIER CODE 1 2 3 4 = 10 = 100 = 1000 = 10000 F TOLERANCE CODE B= C= D= F= G= H= J= K= M= L= 0.1% 0.2% 0.5% 1.0% 2.0% 2.5% 5.0% 10% 20% 25%
W = 100% visually inspected parts in matrix tray per MIL-STD-883 X = Sample, commercial parts visually inspected loaded in matrix trays (4% AQL)
VISHAY ELECTRO-FILMS * FRANCE +33.4.93.37.28.24 FAX: +33.4.93.37.27.31 * GERMANY +49.9287.710 FAX: +49 9287.70435 * ISRAEL +972.3.557.0945 FAX: +972.3.558.9121 * ITALY + 39.2.300.11911 FAX: +39.2.300.11999 * JAPAN +81.42.729.0661 FAX: +81.42.729.3400 * SINGAPORE +65.788.6668 FAX: +65.788.0988 * SWEDEN +46.8.594.70590 FAX: +46.8.594.70581 * UK +44 191 514 8237 FAX: +44 1953 457 722 * USA: (401) 738-9150 FAX: (401) 738-4389
Document Number: 61031 Revision 07-Aug-01
www.vishay.com 53

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