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SMN
Vishay Foil Resistors
High Precision Surface Mount 4 Resistor Network
Dual-In-Line Package with TCR Tracking ? 0.5 ppm/°C ,
Tolerance Match of 0.01 % and Ratio Stability of 0.005 %
FEATURES
? Temperature Coefficient of Resistance (TCR) ?
(- 55 °C to + 125 °C, + 25 °C Ref): ?
Absolute: ± 2 ppm/°C typical (see table 2) ?
Tracking: 0.5 ppm/°C typical (see table 2)
Any value and any ratio available within resistance range
INTRODUCTION
Bulk Metal ? Foil (BMF) Technology outperforms all other
resistor technologies available today for applications that
require High Precision and High Stability.
This technology has been pioneered and developed by
Vishay Foil Resistors (VFR), and products based on this
technology are the most suitable for a wide range of
applications.
BMF technology allows us to produce Customer Orientated
products designed to satisfy challenging and specific
technical requirements.
? Power Rating: at 70 °C ?
Entire Package: 0.4 W ?
Each Resistor: 0.1 W
? Resistance Tolerance Match: 0.01 %
? Ratio Stability: 0.005 % (0.1 W at 70 °C, 2000 hours)
? Large Variety of Resistance Ratios
? Electrostatic Discharge (ESD) above 25 000 Volts
? Short Time Overload ? 0.0025 %
? Non Inductive, Non Capacitive Design
? Rise Time: 1 ns without ringing
? Current Noise: < ? - 40 dB
? Thermal EMF: 0.05 μV/°C
? Voltage Coefficient < 0.1 ppm/V
? Non Inductive: < 0.08 μH
? Non Hot Spot Design
? Terminal Finishes available: Lead (Pb)-free ?
Tin/Lead Alloy
? For better performances please contact us
? Available with Z-Foil technology, please see SMNZ
datasheet
? Ratio Arms in Bridge Circuits
Model SMN offers low TCR (absolute and tracking),
excellent load life stability, tight tolerance (absolute and
match), excellent ratio stability, low thermal EMF, low current
noise and low voltage coefficient - all in the same resistor.
The SMN Surface Mount Network is made up of 4
independent BMF resistors in a small standard molded
epoxy package with 50 MIL lead pitch (JEDEC MS-012
package).
The electrical specification of this integrated construction
offers improved performance and better real estate utilization
over discrete resistors and matched sets. The resistor may
be used independently or as divider pairs.
Our Application Engineering Department is available to
advise and make recommendations. For non-standard
technical requirements and special applications, please
contact us.
APPLICATIONS
? Instrumentation Amplifiers
? Bridge Networks V 1 R 1
? Differential Amplifiers
V 2 R 1
? Medical and Test Equipment
? Military
? Airborne etc.
?
FIGURE 1 - SCHEMATICS 1)
R1
R1
R1
R1
R 2
R 2
-
+
SMN
V out
OPTION 1
TABLE 1 - RESISTANCE VALUES AND ?
TOLERANCES ?
(Tighter performances are available)
FOUR RESISTORS, SAME OHMIC VALUE
SAME ABSOLUTE TOLERANCE
RESISTANCE VALUES
100 ? - 10 k ? per resistor
R1
R2
R2
R1
ABSOLUTE TOLERANCE
EACH RESISTOR
RESISTANCE TOLERANCE
MATCH
± 0.02 %, ± 0.05 %, ± 0.1 %
0.01 %, 0.02 %, 0.05 %
OPTION 2
TWO RESISTOR PAIRS
R1/R2; R2/R1
Note
1. Different schematics are available (R1, R2, R3, R4)
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 63081
Revision: 31-Jan-13
For any questions, contact: foil@vishaypg.com
www.vishayfoilresistors.com
1
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