VSM0805 Datasheet, PDF (1/2 Pages) Vishay Siliconix – Bulk Metal Foil Technology Discrete Surface Mount Chip Resistors

VSM0805
Vishay Foil Resistors
Bulk Metal^® Foil Technology
Discrete Surface Mount Chip Resistors
Product may not
be to scale
The VSM0805 represents the latest addition and smallest size
to the Precision Bulk Metal^® Foil (BMF) technology surface
mount chip resistor series. The VSM0805 has a conventional
full wrap around termination.
The BMF technology offers designers the lowest and most
predictable absolute Temperature Coefficient Resistance
available. The TCR is a process capability not a selection
process and for the most part is independent of ohmic value
and lot related variations.
The availability of tight absolute tolerance provides a good cost
solution for the variability of other components when compiling
the total error budget. BMF offers the best stability available;
and is an order of magnitude better than thin film technology.
The noise generated by the resistor is non measurable and its
design and construction make it well suited for high frequency
applications. The BMF is the ultimate resistor component for
analog applications.
FEATURES
• Nominal TCR: + 0.6ppm/°C (0 to 25°C)
- 0.6ppm/C° (+ 25°C to + 60°C)
+ 2.2ppm/°C (- 55°C to + 25°C)
- 1.8ppm/°C (+ 25°C to + 125°C)
• Absolute Tolerance: to ± 0.01%
• Resistance Range: 5.5Ω to 12K
• Load Life Stability: ± 0.025% (2000 hours @ 70°C)
• Shelf Life Stability: 0.005% Maximum ∆R
• Voltage Coefficient: < 0.00001%/volt (< 0.1ppm/V)
• Current Noise: < - 40dB
• Non Inductive: < 0.08µH
• Terminal Finishes Available:
Lead (Pb)-free (Sn 99.3% Cu 0.7%)
Tin/Lead Alloy (Sn 62% Pb 36% Ag 2%)
TABLE 1 - TOLERANCE VERSUS RESISTANCE VALUE
VALUE
(Ω)
TIGHTEST
TOLERANCE (%)*
250Ω to 12K
± 0.01
100Ω to < 250
± 0.02
50Ω to < 100
± 0.05
25Ω to < 50
± 0.1
10Ω to < 25
± 0.25
FIGURE 1 - NOMINAL TCR CURVE
–55
–50
+500
+400
+300
+200
+100
∆R
R0
(ppm)
–100
–200
–300
–400
–500
–25
0
-5 _ppm
+25
+50
+75 +100 +125
+5 ^ppm
Nominal Resistance/
Temperature (RT) Curve
+2.2 ppm/°C
Nominal Chord
Slope (TCR)
–1.8 ppm/°C
Nominal Chord
Slope (TCR)
–55°C / +25°C / +125°C are the test points
with +25°C as the reference temperature
Maximum
Spread
±2.3 ppm/°C
Standard
Spread
±2.0 ppm/°C
5.5Ω to <10
± 0.5
*Tighter tolerances are available. Please contact Application
Engineering. Soldering temperatures used during installation may
cause resistance to shift up to 0.05%.
TABLE 2 - TYPICAL PERFORMANCE SPECIFICATIONS
TEST
MIL-PRF-55342G
CHARACTERISTIC. E
∆R LIMITS
VSM
MAXIMUM
∆R LIMITS*
Thermal Shock
± 0.10%
± 0.02%
Low Temperature Operation
± 0.10%
± 0.02%
Short Time Overload
± 0.10%
± 0.02%
High Temperature Exposure
± 0.10%
± 0.05%
Resistance to Bonding
± 0.20%
± 0.05%
The TCR for values < 100Ω are influenced by the termination
composition and result in a deviation from this curve. Contact our
application engineering department for detailed specification on low
values
Moisture Resistance
± 0.20%
± 0.10%
Life 2000 hours @ + 70°C
± 0.50%
± 0.025%
*As shown + 0.01 Ohms to allow for measurement errors at low values.
SALES
• ISRAEL: [e-mail] • FRANCE/SWITZERLAND/SOUTHERN EUROPE: [e-mail] • AMERICAS: [e-mail]
• ASIA/JAPAN: [e-mail] • UK/HOLLAND/SCANDANAVIA: [e-mail] • GERMANY/CZECH REPUBLIC/AUSTRIA: [e-mail]
www.vishay.com
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For technical questions in the Americas, contact [e-mail]
Document Number: 63061
For technical questions in Asia/Japan/Europe/Africa/Israel, contact [e-mail]
Revision 17-Aug-04