SMN
Vishay Foil Resistors
High Precision Bulk Metal® Foil Technology
High Precision 4 Resistor Surface Mount Network
Dual-In-Line Molded Package 50 MIL Pitch
with TCR Tracking ≤ 0.5 ppm/°C
FEATURES
• Large variety of resistance ratios
• Low Temperature Coefficient of Resistance (TCR):
± 2 ppm/°C (absolute)
Pb-free
Available
≤ 0.5 ppm/°C (tracking)
• Tight Resistance Ratio Tolerance: 0.01%
Product may
not be to scale
RoHS*
COMPLIANT
• ExcellentRatioStability:0.005%(0.1watts, at70°C, 2000hours)
• Electrostatic Discharge (ESD) above 25 000 Volts
• Short time overload ≤ 0.0025%
• Voltage Coefficient < 0.1ppm/V
• Non Inductive: < 0.08µH
• Power Rating: at 70°C
Entire Package: 0.4 watts
Each Resistor: 0.1 watts
Any value at any tolerance available within the resistance range
INTRODUCTION
Bulk Metal® Foil 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,
and products based on this technology are the most suitable
for a wide range of appilcations.
• Non Inductive/Capacitive design
• Non hot spot design
• Low thermal EMF: 0.05µV/°C
• Low Current Noise: 0.01µV/V(RMS) (- 40dB)
• Rise time: 1ns without ringing
• Terminal Finishes available: Lead (Pb)-free
Tin/Lead Alloy
BMF technology allows us to produce Customer Orientated
products designed to satisfy challenging and specific technical
requirements.
Model SMN offers Extremely Low TCR (absolute and
Tracking), Excellent Load Life Stability, Tight tolerance
(absolute and Tracking), Excellent Ratio Stability, Low thermal
EMF, Low Current Noise and Low Voltage Coefficient, all in
the same resistor.
• For better performances please contact us
• Available with Z-Foil technology
APPLICATIONS
R
2
• Instrumentation amplifiers
• Bridge networks
R
1
1
V
1
2
-
• Differential amplifiers
• Ratio arms in bridge circuits
• Medical and test equipment
• Military
Vout
The SMN Surface Mount Network is made up of 4 independent
Bulk Metal® Foil resistors in a small standard molded epoxy
package with 50 mil lead pitch (Jedec MS-012 package).
+
V
R
SMN
R
2
The electrical specification of this integrated construction offers
improved performance and better real estate utilization over
discrete resistors and matched sets. The resistors may be
used independently or as divider pairs.
• Airborne etc
FIGURE 1 - SCHEMATICS
OurApplication Engineering Department is available to advise
and to make recommendations for non-standard technical
requirements and special applications, please contact us.
R1 R1 R1 R1
OPTION 1
FOUR RESISTORS
SAME OHMIC VALUE,
SAME ABSOLUTE TOLERANCE
TABLE 1 - RESISTANCE VALUES AND TOLERANCES**
RESISTANCE VALUES
100Ω - 10KΩ
per Resistor
ABSOLUTE TOLERANCE
EACH RESISTOR
± 0.02%, ± 0.05%, ± 0.1%
± 0.01%, ± 0.02%, ± 0.05%
R1 R2 R2 R1
RESISTANCE RATIO
TOLERANCE
OPTION 2
TWO RESISTOR PAIRS
R1/R2; R2/R1
** Tighter performances are available
* Pb containing terminations are not RoHS compliant, exemptions may apply
SALES
• AMERICAS: foilsales.usa@vishay.com
• ASIA/JAPAN: foilsales.asia@vishay.com • UK/HOLLAND/SCANDINAVIA: foilsales.eunorth@vishay.com
• GERMANY/CZECH REPUBLIC/AUSTRIA: foilsales.eucentral@vishay.com • FRANCE/SWITZERLAND/SOUTHERN EUROPE: foilsales.eusouth@vishay.com
• ISRAEL: foilsales.israel@vishay.com
For technical questions, contact: foil@vishay.com
Document Number: 63081
Revision: 08-Aug-06
www.vishay.com
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