VFC1206
Vishay Foil Resistors
High Precision Flip Chip,
Patents Pending (Industrialized Countries)
FEATURES
鈥?Nominal TCR: 0.5ppm/擄C (- 55擄C to + 125擄C)
鈥?Resistance Range: 10鈩?to 30K
鈥?Tolerance: to
鹵
0.01%
Product may not
be to scale
鈥?Load Life Stability:
鹵
0.01% maximum
鈭哛
under full rated
power at + 70擄C for 2000 hours
鈥?Shelf Life Stability: 50ppm (0.005%) over several years
鈥?Voltage Coefficient: < 0.00001%/volt (< 0.1ppm/V)
鈥?Current Noise: < 0.010碌V (rms)/volt of applied voltage
鈥?Non Inductive: < 0.08碌H
The VFC1206 is a surface mountable flip chip resistor that
utilizes Ultra Precision Bulk Metal
廬
鈥淶鈥?Foil. This product differs
from other Vishay Bulk Metal
廬
Foil surface mount devices in
as much as it is installed with the foil side facing the PCB
providing better power handling capabilities. The Foil
element is isolated from the PCB by a protective overcoating.
This overcoating plus the overall product design isolates the
resistor from handling and installation stresses.
The temperature coefficient of resistance (TCR) curve shown
below compares the new revolutionary 鈥淶鈥?Foil with its TCR of
< 0.5ppm/擄C to the original Vishay 鈥淐鈥?Foil. The Bulk Metal
廬
Foil characteristics of excellent long term stability, low noise
and availability of tight tolerance are maintained in this Flip
Chip configuration. The VFC1206 is available in any value
within the specified resistance range. The flip chip configuration
is more economical for high volume, anolog applications where
high precision is required.
TABLE 1 - RESISTANCE VALUE VS
TOLERANCE AND TCR
VALUE
鈩?/div>
100鈩?to 30K
50鈩?to < 100鈩?/div>
25鈩?to < 50鈩?/div>
10鈩?to < 25鈩?/div>
STANDARD
TOLERANCE (%)*
鹵
0.01%
鹵
0.05
鹵
0.1
鹵
0.25
MAXIMUM
TCR**
鹵
2.0ppm/擄C
鹵
3.0ppm/擄C
鹵
4.0ppm/擄C
鹵
5.0ppm/擄C
*Tighter tolerances are available. Please contact Application
Engineering.
**Range: - 55擄C to + 125擄C, + 25擄C reference
FIGURE 1 - NOMINAL TCR
COMPARISON OF Z FOIL TO C FOIL
+ 150
+ 100
鈭哛
R
(PPM)
+ 50
0
- 50
- 100
- 150
- 200
- 50
- 55
- 25
< 2PPM/擄C
C Alloy
< 0.5PPM/擄C
Z Alloy
TABLE 2 - TYPICAL PERFORMANCE SPECIFICATIONS
TEST
MIL-PRF-55342
VFC1206
CHARACTERISTIC E MAXIMUM
鈭?/div>
R LIMITS*
鈭?/div>
R LIMITS**
鹵
25ppm/擄C
鹵
0.10%
鹵
0.10%
鹵
0.10%
鹵
0.10%
鹵
0.20%
鹵
0.20%
鹵
0.50%
See Table 1
鹵
0.02%
鹵
0.02%
鹵
0.02%
鹵
0.03%
鹵
0.02%
鹵
0.03%
鹵
0.01%
Temperature Coefficient of
Resistance
Thermal Shock
Low Temperature Operation
Short Time Overload
High Temperature Exposure
Resistance to Bonding
Moisture Resistance
Life 2000hrs at + 70
擄
C
C Alloy 2PPM/
擄
C
Ambient Temperature (
擄
C)
Z Alloy 0.5PPM/
擄
C
0
+ 25
+ 50
+ 75
+ 100 + 125
The TCR for values < 100鈩?are influenced by the termination
composition and result in a deviation from this curve.
NOTES:
* As shown + 0.01鈩?to allow for measurement error.
**As shown + 0.01鈩?to allow for measurement error for values less
than 100鈩?
鈥?SWEDEN +46.8.594.70590 FAX: +46.8.594.70581
鈥?UK +44 191 514 8237 FAX: +44 1953 457 722
鈥?USA +1 610 407-4800 FAX: +1 610 640-9081
VISHAY FOIL 鈥?FRANCE +33.4.93.37.28.24 FAX: +33.4.93.37.27.31
鈥?GERMANY +49.9287.710 FAX: +49 9287.70435
鈥?ISRAEL +972.3.557.0945 FAX: +972.3.558.9121
鈥?ITALY + 39.2.300.11919 FAX: +39.2.300.11999
鈥?JAPAN +81.42.729.0661 FAX: +81.42.729.3400
鈥?SINGAPORE +65.788.6668 FAX: +65.788.0988
Document Number: 63084
Revision 03-Jul-02
www.vishay.com
N1
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