www.vishayfoilresistors.com
2
VSMP Series (0603, 0805, 1206, 1506, 2010, 2512) (Z Foil)
For any questions, contact
foil@vpgsensors.com
4128-EN
Rev 04-Mar-2020
VSMP Series (0603, 0805, 1206, 1506, 2010, 2512)
(Z Foil)
Figure 2—Trimming to Values
(Conceptual Illustration)
Mutual
inductance
reduction
due to change
in current
direction
Current path
before trimming
Foil shown in black, etched spaces in white
Interloop
capacitance
reduction
in series
Trimming process
removes this material
from shorting strip area
changing current path
and increasing
resistance
Current path after trimming
Note
To acquire a precision resistance value, the Bulk Metal
®
Foil
chip is trimmed by selectively removing built-in “shorting bars.”
To increase the resistance in known increments, marked
areas are cut, producing progressively smaller increases in
resistance. This method reduces the effect of “hot spots” and
improves the long-term stability of Bulk Metal Foil resistors.
Figure 3—Typical Resistance /
Temperature Curve
+500
+200
+100
0
–100
–200
–300
–500
∆R
R
(ppm)
0.05 ppm/°C
–0.1 ppm/°C0.1 ppm/°C
0.14 ppm/°C
0.2 ppm/°C –0.16 ppm/°C
–400
+300
+400
Ambient Temperature (°C)
TCR Values for Different Temperature Ranges
–25+250+60 +75+100+125–55
Note
The TCR values for <100 Ω are influenced by the termination
composition and result in deviation from this curve
Table 2—Dimensions and Land Pattern in Inches (Millimeters)
Top View
D
T
W
LDate Code
2
(Year/Week)
Recommended Land Pattern
Footprint
Z
G
X
Chip Size
L
±0.005 (0.13)
W
±0.005 (0.13)
Thickness
Maximum
D
±0.005 (0.13)
Z
(1)
G
(1)
X
(1)
0603 0.063 (1.60) 0.032 (0.81) 0.025 (0.64) 0.011 (0.28) 0.102 (2.59) 0.031 (0.78) 0.031 (0.78)
0805 0.080 (2.03) 0.050 (1.27) 0.025 (0.64) 0.015 (0.38) 0.122 (3.10 ) 0.028 (0.71) 0.050 (1.27)
1206 0.126 (3.20) 0.062 (1.57) 0.025 (0.64) 0.020 (0.51) 0.175 (4.45) 0.059 (1.50) 0.071 (1.80)
1506 0.150 (3.81) 0.062 (1.57) 0.025 (0.64) 0.020 (0.51) 0.19 9 (5.05) 0.0 83 (2.11) 0.071 (1.80)
2010 0.19 8 (5.03) 0.097 (2.46) 0.025 (0.64) 0.025 (0.64) 0.247 (6.27) 0.115 (2.92) 0.103 (2.62)
2512 0.249 (6.32) 0.127 (3.23) 0.025 (0.64) 0.032 (0.81) 0. 2 91 ( 7. 39 ) 0.150 (3.81) 0.127 (3.23)
(1)
Land Pattern Dimensions are per IPC-7351A
(2)
The date code printing applies to all resistor sizes except for 0603
Table 3—Specifications
Chip
Size
(1)
Rated
Power at
+70°C
Max. Working
Voltage
(≤√P × R)
Resistance
Range
(2)
Maximum
Weight
0603 100 mW 20 V 100 Ω to 5 kΩ 3 mg
0805 200 mW 40 V 5 Ω to 8 kΩ 6 mg
1206 300 mW 87 V 5 Ω to 25 kΩ 12 mg
1506 300 mW 95 V 5 Ω to 30 kΩ 13 mg
2010 500 mW 187 V 5 Ω to 70 kΩ 27 mg
2512 750 mW 220 V 5 Ω to 125 kΩ 40 mg
(1)
For size 2018, please contact us using the e-mail address in
the footer below.
(2)
For non-standard values please contact application engineering
Table 4—Load Life Stability (+70°C for 2000 h)
Chip Size ∆R Limits
0603
±0.005% at 50 mW
±0.01% at 100 mW
0805
±0.005% at 100 mW
±0.01% at 200 mW
1206, 1506
±0.005% at 150 mW
±0.01% at 300 mW
2010
±0.005% at 200 mW
±0.01% at 500 mW
2512
±0.005% at 500 mW
±0.01% at 750 mW
