Ultimate Tracking Surface Mount Divider - Vishay Siliconix
Description
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VSMD1505
Vishay Foil Resistors
SURFACE MOUNT
Bulk Metal® Foil Technology Miniature, Ultimate Tracking Surface Mount Divider
FEATURES
Product may not be to scale
• • • • • • • •
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.
Ratio Tracking: to ± 0.
1ppm/°C 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 Current Noise: < - 40dB Load Life (Ratio Stability): < ± 0.
01%
TABLE 1 - RESISTANCE VALUES/ RATIO CHARACTERISTICS
RATIOS R1/R2 10K/10K 5K/10K 2.
5K/10K 2.
0K/10K 1.
0K/9K AVAILABLE RATIO TRACKING 0.
1ppm/°C 0.
1ppm/°C 0.
3ppm/°C 0.
3ppm/°C 0.
5ppm/°C 0.
5ppm/°C 0.
5ppm/°C BEST RATIO MATCH TOLERANCE ± 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)
Temperature (°C)
+100 0 +25 +60
1:1 1:2 1:4 1:5 1:9 1:10 1:20
Nominal Resistance/ Temperature (RT) Curve Maximum Spread ±2.
5 ppm/°C (3σ) Standard Spread ±1.
5 ppm/°C
∆R 0 R (ppm)
1.
0K/10K 500Ω/10K
+0.
6 ppm/°C Nominal Chord Slope (TCR)
–100
–0.
6 ppm/°C Nominal Chord Slope (TCR)
TABLE 2 - TYPICAL PERFORMANCE SPECIFICATIONS
TEST MIL-PRF-55342G CHARACTERISTIC E ∆R LIMITS ± 0.
10% ± 0.
10% ± 0.
10% ± 0.
10% ± 0.
20% ± 0.
20% — VSM MAXIMUM ∆R LIMITS* ± 0.
02% ± 0.
02% ± 0.
02% ± 0.
05% ± 0.
05% ± 0.
10% ± 0.
01%
0°C / +25°C / +60°C are the test points with +25°C as the reference temperature
FIGURE 2 - DELTA RATIO VERSUS TEMPERATURE
10 8
Thermal Shock Low Temperature Operation Short Time Overload
Del...
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