Powertron Announces Industry’s First Ultra-High-Precision Current Sense Resistors to Achieve Low Resistance From 0.001 Ω W...
October 13 2016 - 7:30AM
Business Wire
VPG Foil Resistors, a Vishay Precision Group, Inc.
(NYSE: VPG) product group, announced today that its Powertron
brand has expanded its S-Line of precision Bulk Metal® Foil current
sense resistors with the new SHLR series. For industrial and energy
applications, the SHLR 4-2321, SHLR 4-3825, and SHLR 4-3825H are
the industry’s first such devices to combine low resistance down to
0.001 Ω, TCR to +/-2 ppm/K, and high power ratings up to 50 W.
Offering load stability to 0.1% for up to 2,000 hours, the
resistors released today provide highly accurate and reliable
current measurement in industrial instrumentation and battery
management systems, as well as smart energy grids and solar and
wind inverters. For these applications, the devices feature a wide
range of power ratings — from 3 W in free air to 50 W when mounted
on a heatsink — and resistance values from 0.001 Ω to 0.005 Ω with
tight tolerances to +/-0.1%.
The SHLR series achieves its very low TCR in the standard
working range of +20°C to +60°C thanks to Bulk Metal Foil®
technology based on CuMnSn metal foil. Its nearly flat TCR curve
will help engineers to design more precise equipment or to upgrade
existing systems.
SHLR series resistors feature maximum currents to 150 A, very
low inductance, thermal EMF of < 1 μV/K, thermal resistance down
to 1.6 K/W, and an operating temperature range of -40°C to +130°C.
Offered in anodized aluminum packages, the devices are
RoHS-compliant and lead (Pb)-free.
Device Specification Table:
Part number
SHLR 4-2321
SHLR 4-3825
SHLR 4-3825H
Resistance range (Ω) 0.001 to 0.005
Powerrating (W)
Free air 70 °C 3 3 5
With heatsink 40 50 50
Thermal
resistance (K/W) 2.0 1.6 1.6
Voltage
proof (VDC) 300 500 500
Samples and production quantities of the SHLR 4-2321, SHLR
4-3825, and SHLR 4-3825H resistors are available now, with lead
times of eight weeks. The SHLR 4-2321, SHLR 4-3825, and SHLR
4-3825H resistors will be among the products on display during
electronica 2016 at the VPG Foil Resistors booth B6/116 at the
Messe München, November 8-11.
The newly redesigned www.vpgfoilresistors.com web site offers
detailed information on the industry’s most precise and stable
resistors from the Vishay Foil Resistors, Powertron, and Alpha
Electronics brands, including videos, application notes,
datasheets, and market-related information.
About VPG
Vishay Precision Group, Inc. is an internationally recognized
designer, manufacturer and marketer of: components based on its
resistive foil technology; sensors; and sensor-based systems
specializing in the growing markets of stress, force, weight,
pressure, and current measurements. VPG is a market leader of foil
technology products, providing ongoing technology innovations in
precision foil resistors and foil strain gages, which are the
foundation of the company’s force sensors products and its weighing
and control systems. The product portfolio consists of a variety of
well-established brand names recognized for precision and quality
in the marketplace. To learn more, visit VPG at
www.vpgsensors.com.
About VPG Foil Resistors
VPG Foil Resistors produces the most precise and stable
resistors available. Distinguished by the premier brands Vishay
Foil Resistors, Powertron, and Alpha Electronics, the VPG Foil
Resistors portfolio includes discrete resistors and resistor
networks in surface mount and through-hole (fixed-lead)
configurations; customized chip resistor networks; precision
trimming potentiometers; and discrete chips for use in hybrid
circuits. These devices are used in applications requiring a high
degree of precision and stability, such as in medical testing
equipment, semiconductor equipment, precision measuring
instruments, aerospace, and military applications. To learn more
about VPG Foil Resistors, visit www.vpgfoilresistors.com; Powertron
can be reached at www.powertron.de.
Bulk Metal is a registered trademark of Vishay Precision Group,
Inc. (VPG).
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version on businesswire.com: http://www.businesswire.com/news/home/20161013005173/en/
VPGReynee TungDirector, Global Marketing
Communications+1-919-374-5515reynee.tung@vpgsensors.com
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