VFC1206
Vishay Foil Resistors
High Precision Flip Chip,
Patents Pending (Industrialized Countries)
FEATURES
•
•
•
•
•
•
•
•
•
Nominal TCR: 0.5ppm/°C (- 55°C to + 125°C)
Resistance Range: 10Ω to 30K
Tolerance: to
±
0.01%
Load Life Stability:
±
0.01% maximum
∆R
under full rated
power at + 70°C for 2000 hours
Shelf Life Stability: 50ppm (0.005%) over several years
Voltage Coefficient: < 0.00001%/volt (< 0.1ppm/V)
Current Noise: < 0.010µV (rms)/volt of applied voltage
Non Inductive: < 0.08µH
Terminal Finishes Available:
Lead (Pb)-free (Sn 99.3% Cu 0.7%)
Tin/Lead Alloy (Sn 62% Pb 36% Ag 2%)
Product may not
be to scale
The VFC1206 is a surface mountable flip chip resistor that
utilizes Ultra Precision Bulk Metal
®
“Z” Foil. This product
differs from other Vishay Bulk Metal
®
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 below
shows the new revolutionary “Z” Foil with its TCR of
< 0.5ppm
°C.
The Bulk Metal
®
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
Ω
100Ω to 30K
50Ω to < 100Ω
25Ω to < 50Ω
10Ω to < 25Ω
STANDARD
TOLERANCE (%)*
±
0.01%
±
0.05
±
0.1
±
0.25
MAXIMUM
TCR**
±
2.0ppm/°C
±
3.0ppm/°C
±
4.0ppm/°C
±
5.0ppm/°C
*Tighter tolerances are available. Please contact Application
Engineering.
**Range: - 55°C to + 125°C, + 25°C reference
FIGURE 1 - NOMINAL TCR Z FOIL
Z Alloy 0.5PPM/
°
C
+ 150
+ 100
∆R
R
+ 50
0
TABLE 2 - TYPICAL PERFORMANCE SPECIFICATIONS
TEST
MIL-PRF-55342
VFC1206
CHARACTERISTIC E MAXIMUM
∆
R LIMITS*
∆
R LIMITS**
±
25ppm/°C
±
0.10%
±
0.10%
±
0.10%
±
0.10%
±
0.20%
±
0.20%
±
0.50%
See Table 1
±
0.02%
±
0.02%
±
0.02%
±
0.03%
±
0.02%
±
0.03%
±
0.01%
Temperature Coefficient of
Resistance
Thermal Shock
Low Temperature Operation
Short Time Overload
High Temperature Exposure
- 25
0
+ 25
+ 50
+ 75
+ 100 + 125
(PPM) - 50
- 100
- 150
- 200
- 50
- 55
Resistance to Bonding
Moisture Resistance
Life 2000hrs at + 70
°
C
Ambient Temperature (
°
C)
The TCR for values < 100Ω are influenced by the termination
composition and result in a deviation from this curve.
NOTES:
* As shown + 0.01Ω to allow for measurement error.
** As shown + 0.01Ω to allow for measurement error for values less
than 100Ω.
SALES
• ISRAEL: foilsales.israel@vishay.com
• FRANCE/SWITZERLAND/SOUTHERN EUROPE: foilsales.eusouth@vishay.com
• AMERICAS: foilsales.usa@vishay.com
• ASIA/JAPAN: foilsales.asia@vishay.com • UK/HOLLAND/SCANDANAVIA: foilsales.eunorth@vishay.com • GERMANY/CZECH REPUBLIC/AUSTRIA: foilsales.eucentral@vishay.com
For technical questions in the Americas, contact foilsupport1@vishay.com
Document Number: 63084
For technical questions in Asia/Japan/Europe/Africa/Israel, contact foilsupport2@vishay.com
Revision 13-Aug-04
www.vishay.com
N1
VFC1206
Vishay Foil Resistors
Bulk Metal
®
Foil Technology
High Precision Flip Chip, Patent Pending
FIGURE 3 - CHIP CONFIGURATION
High Purity Alumina
Substrate
Resistive
Bulk Metal
®
Foil
FIGURE 2 - POWER DERATING CURVE
Percent of Rated Power
125
100
75
50
25
0
-75
–55°C
+70°C
Rated Power
Solder
–50
–25
0
+25
+50
+75
+100 +125 +150 +175
Ambient Temperature (°C)
Protective
Coating
FIGURE 4 - DIMENSIONS AND LAND PATTERN
in inches (millimeters)
Bottom View (Showing Terminals for Mounting):
Solder Terminal (2)
D
Land Pattern
W
W1
G
X
L - 0.003 (0.08)
L
CHIP
SIZE
1206
L
±
0.005 (0.13)
0.126
(3.20)
W
±
0.005 (0.13)
0.062
(1.57)
THICKNESS
MAXIMUM
0.025
(0.64)
D
±
0.003 (0.08)
0.015
(0.38)
W1
±
0.003 (0.08)
0.059
(1.50)
Z
Z
±
0.003 (0.08)
0.126
(3.20)
G
X
±
0.003 (0.08)
±
0.003 (0.08)
0.090
(2.29)
0.062
(1.57)
TABLE 3 - PROPERTIES
RESISTANCE
RANGE
(
Ω
)
10R - 30K
POWER
+ 70
°
C
(mW)
125
MAXIMUM
VOLTAGE
(V)
61
MAXIMUM
WEIGHT
(mg)
10.3
TABLE 4 - ORDERING INFORMATION
MODEL
VFC
CHIP SIZE
1206
RESISTANCE
RANGE
RESISTANCE VALUE
LETTER
DESIGNATOR
MULTIPLIER
FACTOR
x 1.0
x 10
3
TOLERANCE
T
±
0.01%
Q
±
0.02%
A
±
0.05%
B
±
0.1%
C
±
0.25%
D
±
0.5%
F
±
1.0%
TERMINATION
PACKAGING
S
- Lead (Pb)-free
T
= Tape and
B
- Tin/Lead
Reel
W
= Waffle Pack
10Ω to <1KΩ
R
Example: 249R00 = 249Ω
1K to 30K
K
Example: 10K000 = 10.0KΩ
Patent Pending
SALES
• ISRAEL: foilsales.israel@vishay.com
• FRANCE/SWITZERLAND/SOUTHERN EUROPE: foilsales.eusouth@vishay.com
• AMERICAS: foilsales.usa@vishay.com
• ASIA/JAPAN: foilsales.asia@vishay.com • UK/HOLLAND/SCANDANAVIA: foilsales.eunorth@vishay.com • GERMANY/CZECH REPUBLIC/AUSTRIA: foilsales.eucentral@vishay.com
www.vishay.com
N2
For technical questions in the Americas, contact foilsupport1@vishay.com
Document Number: 63084
For technical questions in Asia/Japan/Europe/Africa/Israel, contact foilsupport2@vishay.com
Revision 13-Aug-04
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