QFX
Vishay Electro-Films
Thin Film, Top-Contact Megohm Resistor
CHIP
RESISTORS
FEATURES
•
Wire bondable
Product may not
be to scale
•
Chip size: 0.050 inches square
•
Resistance range: 500 kΩ to 10 MΩ
•
Quartz substrate: < 0.1 pF shunt capacitance
•
Resistor material: Tantalum nitride, self-passivating
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.
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 %
± 50 ppm/°C
± 100 ppm/°C
± 250 ppm/°C
± 350 ppm/°C
0.5 %
PROCESS CODE
CLASS H*
012
009
013
014
*MIL-PRF-38534 inspection criteria
CLASS K*
174
175
176
177
500 kΩ
1 MΩ 2.0 MΩ 4.2 MΩ
10 MΩ
STANDARD ELECTRICAL SPECIFICATIONS
PARAMETER
Noise, MIL-STD-202, Method 308
Moisture Resistance, MIL-STD-202
Method 106
Stability, 1000 h, + 125 °C, 10 mW
Operating Temperature Range
Thermal Shock, MIL-STD-202,
Method 107, Test Condition F
High Temperature Exposure, + 150 °C, 100 h
Dielectric Voltage Breakdown
Insulation Resistance
Operating Voltage
DC Power Rating at + 70 °C (Derated to Zero at + 175 °C)
5 x Rated Power Short-Time Overload, + 25 °C, 5 s
- 12 dB typ.
± 0.5 % max.
ΔR/R
± 0.5 % max.
ΔR/R
- 55 °C to + 125 °C
± 0.25 % max.
ΔR/R
± 0.5 % max.
ΔR/R
400 V
10
12
min.
400 V max.
20 mW
± 0.25 % max.
ΔR/R
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52
For technical questions, contact: efi@vishay.com
Document Number: 61031
Revision: 13-Mar-08
QFX
Thin Film, Top-Contact Megohm Resistor
Vishay Electro-Films
DIMENSIONS
in inches
0.050
CHIP
RESISTORS
0.045
0.050
0.005
0.005
SCHEMATIC
MECHANICAL SPECIFICATIONS
in inches
PARAMETER
Chip Size
Chip Thickness
Chip Substrate Material
Resistor Material
Bonding Pad size
Number of Pads
Pad Material
Backing
Options:
Gold bonding pads, 15 kÅ minimum
Consult Applications Engineer
0.050 x 0.050 ± 0.003 (1.25 x 1.25 ± 0.75 mm)
0.010 ± 0.002 (0.254 ± 0.05 mm)
Quartz
Tantalum nitride, self-passivating
0.005 x 0.005 (0.127 x 0.127 mm)
2
10 kÅ minimum aluminum
None, lapped quartz
ORDERING INFORMATION
Example: 100 % visual, 5 MΩ, ± 1 %, ± 350 ppm/°C TCR, 50 mil, aluminum pads, class H visual inspection
W
INSPECTION/
PACKAGING
W = 100 % visually inspected
parts in matrix tray per
MIL-STD-883
X = Sample, commercial visually
inspected parts loaded in matrix
trays (4 % AQL)
QFX
PRODUCT
FAMILY
014
PROCESS
CODE
See Process Code
table
5000
RESISTANCE
VALUE
Use the first 4 digits
significant digits of the
resistance
3
MULTIPLIER
CODE
1
= 10
2
= 100
3
= 1000
4
= 10 000
F
TOLERANCE
CODE
B
= 0.1 %
C
= 0.2 %
D
= 0.5 %
F
= 1.0 %
G
= 2.0 %
H
= 2.5 %
J
= 5.0 %
K
= 10 %
M
= 20 %
L
= 25 %
Document Number: 61031
Revision: 13-Mar-08
For technical questions, contact: efi@vishay.com
www.vishay.com
53
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000
Revision: 18-Jul-08
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