English
Language : 

VSMD1505 Datasheet, PDF (1/2 Pages) Vishay Siliconix – Bulk Metal Foil Technology Miniature, Ultimate Tracking Surface Mount Divider
VSMD1505
Vishay Foil Resistors
Bulk Metal® Foil Technology
Miniature, Ultimate Tracking Surface Mount Divider
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.
FIGURE 1 - VISHAY VSMD1505
NOMINAL TCR (0°C TO +60°C)
Temperature (°C)
0
+25
+60
+100
Nominal Resistance/
Temperature (RT) Curve
∆R
R
0
(ppm)
+0.6 ppm/°C
–0.6 ppm/°C
Nominal Chord Nominal Chord
Slope (TCR)
Slope (TCR)
–100
0°C / +25°C / +60°C are the test points
with +25°C as the reference temperature
Maximum
Spread
±2.5 ppm/°C
(3σ)
Standard
Spread
±1.5 ppm/°C
FIGURE 2 - DELTA RATIO VERSUS
TEMPERATURE
10
8
6
4
2
0
-2
-4
-6
- 55 - 35 - 15
1K/10Kohms (typical)
10K/10Kohms (typical)
5 25 45 65 85 105 125
Temperature (°C)
FEATURES
• 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 AVAILABLE RATIO
BEST RATIO MATCH
R1/R2
TRACKING
TOLERANCE
10K/10K
1:1
0.1ppm/°C
± 0.005%
5K/10K
1:2
0.1ppm/°C
± 0.005%
2.5K/10K
1:4
0.3ppm/°C
± 0.01%
2.0K/10K
1:5
0.3ppm/°C
± 0.01%
1.0K/9K
1:9
0.5ppm/°C
± 0.02%
1.0K/10K
1:10
0.5ppm/°C
± 0.02%
500Ω/10K 1:20
0.5ppm/°C
± 0.02%
TABLE 2 - TYPICAL PERFORMANCE SPECIFICATIONS
TEST
MIL-PRF-55342G
VSM
CHARACTERISTIC E MAXIMUM
∆R LIMITS
∆R LIMITS*
Thermal Shock
± 0.10%
± 0.02%
Low Temperature Operation
± 0.10%
± 0.02%
Short Time Overload
High Temperature Exposure
± 0.10%
± 0.10%
± 0.02%
± 0.05%
Resistance to Bonding
± 0.20%
± 0.05%
Moisture Resistance
± 0.20%
± 0.10%
Load Life (Ratio Stability)
—
± 0.01%
*∆R's plus additional 0.0005 ohm for measurement error.
Weight
Packaging
10mg.
Waffle pack standard
Tape & reel Available
VISHAY FOIL • FRANCE +33.4.93.37.28.24 FAX: +33.4.93.37.27.31
• GERMANY +49.9287.710 FAX: +49 9287.70435
• ISRAEL +972.3.557.0945 FAX: +972.3.558.9121
• ITALY + 39.2.300.11919 FAX: +39.2.300.11999
• JAPAN +81.42.729.0661 FAX: +81.42.729.3400
• SINGAPORE +65.788.6668 FAX: +65.788.0988
www.vishay.com
30
• 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
Document Number: 63062
Revision 24-Oct-02