Document Number: 63106 For any questions, contact: foil@vishay.com
www.vishay.com
Revision: 28-Jun-07 3
VFCP Series (0805, 1206, 1506, 2010, 2512) (Z-Foil)
Ultra High Precision Z-Foil Flip Chip Resistor with TCR
of ± 0.05 ppm/°C, 35 % Space Saving versus
Wraparound Design and PCR of 5 ppm at Rated Power
Vishay Foil Resistors
IMPRO
VED
PRODUCT
Note
1. Land Pattern Dimensions are per IPC-782
Note
• The TCR values for < 100Ω are influenced by the termination
composition and result in deviation from this curve
TABLE 6 - DIMENSIONS AND LAND PATTERN in inches (millimeters)
CHIP
SIZE
L W THICKNESS D Z
1)
G
1)
X
1)
± 0.005 (0.13) ± 0.005 (0.13) MAXIMUM ± 0.005 (0.13) MAXIMUM MINIMUM MAXIMUM
0805 0.079 (2.01) 0.049 (1.24) 0.025 (0.64) 0.010 (0.25) 0.078 (1.98) 0.053 (1.35) 0.049 (1.24)
1206 0.126 (3.20) 0.062 (1.57) 0.025 (0.64) 0.015 (0.38) 0.125 (3.18) 0.090 (2.29) 0.062 (1.57)
1506 0.150 (3.81) 0.062 (1.57) 0.025 (0.64) 0.012 (0.30) 0.150 (3.81) 0.120 (3.05) 0.062 (1.57)
2010 0.200 (5.08) 0.100 (2.54) 0.025 (0.64) 0.020 (0.51) 0.199 (5.05) 0.153 (3.89) 0.100 (2.54)
2512 0.250 (6.35) 0.126 (3.20) 0.025 (0.64) 0.024 (0.61) 0.250 (6.35) 0.196 (4.98) 0.126 (3.20)
D
W
L
L - 0.005 (0.13)
W1 [W - 0.003"]
Solder Terminals
BOTTOM VIEW (showing terminals for mounting)
LAND PATTERN
G
Z
X
FIGURE 3 - CHIP CONFIGURATION
Protective Coating
High Purity Alumina Substrate
Resistive
Bulk
®
Metal Foil
Solder
FIGURE 4 - TYPICAL TCR CURVE Z-FOIL
(For more details, see Table 1)
+ 500
+ 200
+ 100
0
- 100
- 200
- 300
- 500
- 55 - 25 + 25 + 60 + 75 + 100 + 125
Ambient Temperature (°C)
ΔR
R
(ppm)
0
0.05 ppm/°C
- 0.1 ppm/°C 0.1 ppm/°C
0.14 ppm/°C
0.2 ppm/°C
- 0.16 ppm/°C
- 400
+ 300
+ 400
