DSM
High Precision Bulk Metal® Foil Surface Mount Voltage Divider
High Precision Bulk Metal® Foil Surface Mount Voltage Divider
TCR Tracking of <0.5 ppm/°C, Tolerance Match of 0.01%
and Stability of 0.005% ꢀ50 ppmꢁ
FEATURES
•ꢀTemperature coefficient of resistance (TCR):
Absolute: 2 ppm/°C typical (–55°C to +125°C,
+25°C ref.) Tracking: 0.5 ppm/°C typical
•ꢀTolerance: absolute: 0.02%; match: 0.01%
INTRODUCTION
•ꢀPower rating: at 70°C: entire package: 0.1 W
each resistor: 0.05 W
Bulk Metal® Foil (BMF) technology out-performs all other
resistor technologies available today for applications that
require high precision and high stability.
•ꢀRatio stability: 0.005% (0.05 W at 70°C, 2000 h)
•ꢀResistance range: 100 Ω to 12 kΩ per resistor
•ꢀLarge variety of resistance ratios: 1:120
•ꢀBulk Metal® Foil resistors are not restricted to standard
values/ratios; specific “as required” values/ratios can
be supplied at no extra cost or delivery
This technology has been invented, patented and
pioneered by Vishay Foil Resistors (VFR). Products based
on this technology are the most suitable for a wide range
of appilcations.
(e.g., 1K234/2K345 vs. 1K/2K)
•ꢀThermal stabilization time <1 s (nominal value achieved
within 10 ppm of steady state value)
•ꢀElectrostatic discharge (ESD) at least to 25 kV
•ꢀShort time overload: 0.005%
•ꢀNon inductive, non capacitive design
•ꢀRise time: 1 ns effectively no ringing
•ꢀCurrent noise: <0.010 µVRMS/V of applied voltage
(–40 dB)
•ꢀVoltage coefficient: 0.1 ppm/V
•ꢀNon inductive: 0.08 µH
•ꢀNon hot spot design
•ꢀTerminals: silver coated copper alloy (see Table 5)
•ꢀCompliant to RoHS directive 2002/95/EC
•ꢀPrototype quantities available in just 5 working days
or sooner. For more information, please contact:
foil@vpgsensors.com
BMF technology allows the production of customer
oriented products designed to satisfy challenging and
specific technical requirements. Model DSM offers low
TCR (both absolute and tracking), excellent load life
stability, tight tolerance, excellent ratio stability, and low
current noise, all in one package.
The DSM surface mount divider provides a matched pair
of Bulk Metal® Foil resistors in a small epoxy
molded package.
The electrical specification of this integrated construction
offers improved performance and better real estate
utilization over discrete resistors and matched pairs.
VFR’s application engineering department is available to
advise and make recommendations. For non-standard
technical requirements and special applications, please
contact: foil@vpgsensors.com.
Figure 1 – Schematic
•ꢀFor better performances, please see
DSMZ datasheet (Z-Foil)
R1
R2
OPTION 1
OPTION 2
SAME OHMIC VALUE,
RESISTOR PAIR
SAME ABSOLUTE TOLERANCE
R1/R2 - DIFFERENT VALUES
Table 1 – Model DSM Specifications
ABSOLUTE TCR
ꢀ–55°C TO +125°C, +25°C REF.ꢁ
TYPICAL + MAX. SPREAD
TOLERANCE
RESISTANCE
MODEL
TCR TRACKING
RATIO
ABSOLUTE
MATCH
R1/R2 = 1
1 <R1/R2 ≤10
10 <R1/R2 ≤120
1.0 ppm/°C
2.0 ppm/°C
3.0 ppm/°C
0.02%
0.05%
0.1%
0.01%
0.02%
0.05%
DSM
2 ppm/°C 3 ppm/°C
Note
* This datasheet provides information about parts that are RoHS-compliant and/or parts that are non-RoHS-compliant. For example,
parts with lead (Pb) terminations are not RoHS compliant. Please see the information/tables in this datasheet for details.
9667-EN
Rev 25-Mar-2020
For any questions, contact
foil@vpgsensors.com
www.vishayfoilresistors.com
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