Isabellenhütte SMK Series

Isabellenhütte SMK Series
The SMK surface-mountcurrent sensing resistor series from Isabellenhütte offers the designer higher power ratings and low internal temperature rises due to the larger pad termination sizes. The Manganin® alloy resistance element with a resistance range of 0.005Ω to 0.5Ω, has a TC of below 50ppm/K over the temperature range of (between +20°C and +60°C) for resistance values of 0.015Ω or more and offers excellent long term stability. The SMK model offers these capabilities in a 1206 chip size.
  • 2-terminal surface-mount resistor with larger pads for higher power requirements
  • Low ohmic resistance values for current sense applications (4-terminal pcb layout)
  • Resistance range available 0.005Ω to 0.5Ω
  • Power rating 1W (at 110°C)
  • Constant current up to 11A (0.08Ω)
  • Tolerance options available ±1% from 0.01Ω and ±5%
  • Applicable temperature range -65°C to +170°C
  • 1206 chip size

Typical applications for the SMK series include:

  • Current sensor for power hybrid applications
  • Control systems for the automotive market
  • Power modules
  • Frequency converters
  • Switch mode power supplies

The below table gives an overview of the specifications for the Isabellenhütte SMK series:

Isabellenhütte SMK Specifications

* from 0.01Ω

Specifications
Additional Features
  • 1206 chip size
  • 2-terminal surface-mount resistor
  • Constant current up to 11A (0.008Ω)
  • Excellent long-term stability
  • Applicable temperature range -65°C to +170°C
  • Mounting: Reflow and IR soldering
  • High pulse power rating
Maximum Power Rating
  • 1W (at +110°C)
Maximum Resistance
  • 0.5Ω
Minimum Resistance
  • 0.005Ω
TCR
  • R<15mΩ: <100 ppm/K (between +20°C and +60°C)
  • R≥15mΩ: <50 ppm/K (between +20°C and +60°C)
Tolerance
  • ±1.0% (from 10mΩ)
  • ±5.0%

We are pleased to provide you with a range of additional content including videos, product datasheets, case studies, white papers and application notes for your reference. Please see below for the latest content available:

 

 

DOCUMENTATION
PDF DocumentIsabellenhütte SMK surface-mount 2-terminal precision resistor series datasheet
PDF DocumentIsabellenhütte low-ohmic and power resistors product catalogue

 

 

 

VIDEOS
Introduction to Isabellenhütte Heusler GmbH & Co. KG

Introduction video to Isabellenhütte, their business and product applications examples
Isabellenhütte precision and power resistors application overview

This video highlights customer applications and application options of Isabellenhütte's precision and power resistors
VIDEOS
Introduction to Isabellenhütte Heusler GmbH & Co. KG

Introduction video to Isabellenhütte, their business and product applications examples
Isabellenhütte precision and power resistors application overview

This video highlights customer applications and application options of Isabellenhütte's precision and power resistors

The SMK resistor series is available with various options including standard resistance values and tolerances. The information below gives an example of the part numbering system used for these resistors and the standard options available.

Below is an example of the part number break down for the SMK resistor series:

SMK Part Number Example

 

 

The following table highlights the standard resistance values and tolerances available for the SMK resistor series:

SMK Series Available Parts

RoHS Compliance

This product is available fully compliant to the RoHS EU directive 2011/65/EU.

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Available Options

Tags: SMK-R005-5.0, SMK-R008-5.0, SMK-R010-1.0, SMK-R010-5.0, SMK-R020-1.0, SMK-R020-5.0, SMK-R025-1.0, SMK-R033-1.0, SMK-R050-1.0, SMK-R050-5.0, SMK-R100-1.0, SMK-R170-1.0, SMK-R200-1.0, SMK-R200-5.0, SMK-R220-1.0, SMK-R360-1.0, SMK-R500-1.0, Isabellenhuette, SMK-R008-1.0