VSMD1505
Vishay Foil Resistors
Bulk Metal® Foil Technology
Miniature, Ultimate Tracking Surface Mount Divider
FEATURES
• Ratio Tracking: to 0.1ppm/°C
Product may not
be to scale
• Ratio Match Tolerance: to 0.005%
• Absolute Tolerance: to 0.01%
• Nominal TCR: + 0.6ppm/°C (0 to 25°C)
- 0.6ppm/°C (25 to 60°C)
• Resistance Value Ratios 1:1 to 1:20
• Non Inductive Planar Design
This extremely small surface mount voltage divider made of
Bulk Metal® Foil technology offers the ultimate in tracking and
ultimate in ratio stability. Additionally Bulk Metal® Foil has an
extremely low absolute temperature coefficient of resistance
so the temperature differential caused by power unbalances
associated with large ratios will not adversely affect the tracking
specification. The absence of noise generation by the resistor
make it the ultimate component.
• Current Noise: <- 40dB
• Load Life (Ratio Stability): < 0.01%
TABLE 1 - RESISTANCE VALUES/RATIO
CHARACTERISTICS
RATIOS AVAILABLE
R1/R2
RATIO
TRACKING
BEST RATIO MATCH
TOLERANCE
10K/10K
5K/10K
1:1
0.1ppm/°C
0.1ppm/°C
0.3ppm/°C
0.3ppm/°C
0.5ppm/°C
0.5ppm/°C
0.5ppm/°C
0.005%
0.005%
0.01%
0.01%
0.02%
0.02%
0.02%
FIGURE 1 - VISHAY VSMD1505
NOMINAL TCR (0°C TO +60°C)
1:2
Temperature (°C)
2.5K/10K
2.0K/10K
1.0K/9K
1:4
0
+25
+60
+100
Nominal Resistance/
Temperature (RT) Curve
1:5
1:9
Maximum
Spread
2.5 ppm/°C
(3σ)
1.0K/10K
500Ω/10K
1:10
1:20
∆R
0
R
(ppm)
Standard
Spread
1.5 ppm/°C
–0.6 ppm/°C
Nominal Chord
Slope (TCR)
+0.6 ppm/°C
Nominal Chord
Slope (TCR)
TABLE 2 - TYPICAL PERFORMANCE SPECIFICATIONS
MIL-PRF-55342G VSM
CHARACTERISTIC E MAXIMUM
–100
0°C / +25°C / +60°C are the test points
with +25°C as the reference temperature
TEST
∆R LIMITS
0.10%
0.10%
0.10%
0.10%
0.20%
0.20%
—
∆R LIMITS*
FIGURE 2 - DELTA RATIO VERSUS
TEMPERATURE
Thermal Shock
0.02%
Low Temperature Operation
Short Time Overload
0.02%
10
8
0.02%
High Temperature Exposure
Resistance to Bonding
Moisture Resistance
0.05%
6
1K/10Kohms (typical)
4
2
0
0.05%
0.10%
10K/10Kohms (typical)
Load Life (Ratio Stability)
0.01%
- 2
- 4
- 6
*∆R's plus additional 0.0005 ohm for measurement error.
Weight
10mg.
- 55 - 35 - 15
5
25
45
65
85 105 125
Waffle pack standard
Tape & reel Available
Temperature (°C)
Packaging
VISHAY FOIL • FRANCE +33.4.93.37.28.24 FAX: +33.4.93.37.27.31 • ITALY + 39.2.300.11919 FAX: +39.2.300.11999
• SWEDEN +46.8.594.70590 FAX: +46.8.594.70581
• UK +44 191 514 8237 FAX: +44 1953 457 722
• USA +1 610 407-4800 FAX: +1 610 640-9081
• GERMANY +49.9287.710 FAX: +49 9287.70435
• ISRAEL +972.3.557.0945 FAX: +972.3.558.9121
• JAPAN +81.42.729.0661 FAX: +81.42.729.3400
• SINGAPORE +65.788.6668 FAX: +65.788.0988
www.vishay.com
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Document Number: 63062
Revision 24-Oct-02