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
Delta Ratio (ppm)
6
4
2
0
-2
-4
-6
- 55 - 35
- 15
5
1K/10Kohms (typical)
High Temperature Exposure
Resistance to Bonding
Moisture Resistance
10K/10Kohms (typical)
Load Life (Ratio Stability)
*∆R's plus additional 0.0005 ohm for measurement error.
Weight
25
45
65
Temperature (
°
C)
85
105 125
10mg.
Waffle pack standard
Tape & reel Available
Packaging
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
• 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
www.vishay.com
30
Document Number: 63062
Revision 24-Oct-02
VSMD1505
Bulk Metal
®
Foil Technology
Vishay Foil Resistors
Miniature, Ultimate Tracking Surface Mount Divider
SURFACE MOUNT
FIGURE 3 - MODEL VSM1505D DIMENSIONS
in inches (millimeters)
Top View
Recommended Land Pattern*
S
H
T
W
X
G
L
Z
D
D
D
*Dimensions Z, G, X
are per IPC-782A
H
R
1
R
2
1
2
3
Bottom View
CHIP SIZE ( ) = mm
1505
LAND PATTERN
L
0.150
±
0.005
(3.81
±
0.13)
Z
0.193
±
0.004
(4.90
±
0.1)
W
0.050
±
0.005
(1.27
±
0.13)
G
0.096
±
0.004
(2.44
±
0.1)
T
0.025 Maximum
(0.64)
X
0.050
±
0.004
(1.27
±
0.1)
Schematic
D
0.018
±
0.005
(0.46
±
0.13)
S
0.024 Typical
(0.6)
H
0.015 Typical
(0.381)
FIGURE 4 - POWER DERATING CURVE
–55°C
+70°C
Rated Power
100
75
50
25
0
-75
Percent of Rated Power
125
–50
–25
0
+25
+50
+75
+100 +125 +150 +175
Ambient Temperature (°C)
NOTE:
VSMD1505 has a power rating of 50mW for each element @ + 70°C and a maximum working voltage of 22V for each element.
TABLE 3 - ORDERING INFORMATION - MODEL VSMD1505
MODEL
NUMBER
VSMD1505
RESISTANCE
VALUE*
R1 = 10KΩ
R2 = 10KΩ
ABSOLUTE
TOLERANCE
±
0.01%
±
0.01%
RATIO MATCH
TOLERANCE
±0.005%
*Specify the value of R1 and R2 (even if both values are the same) as well as the absolute tolerance and Ratio Match tolerance.
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
• 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
www.vishay.com
31
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