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Bourns Announces New Sulfur-Resistant High Power Thick Film Resistors and Thin Film Chip Resistors

23.11.2017
Reading Time: 2 mins read
A A

source: Bourns news

Riverside, California – November 17, 2017

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Bourns has released two new series of thick film chip resistors and one new series of thin film chip resistors

The new series of thick film chip resistors offer enhanced power ratings up to 2W at 70C. The models CRM and CRS are sulfur-resistant and AEC-Q200 compliant making them suitable for automotive driver assistant, entertainment, information and lighting applications, as well as automation, industrial, commercial, power supply and stepper-motor drive designs

The company’s latest resistor series have been designed to operate in harsh environments where there are elevated levels of sulfur contamination, and tested in accordance with ASTM B809-9 methods. The resistors are made using a thick film element printed onto a ceramic substrate, offering extra product lifespan benefits compared to standard film resistors when exposed to a sulfurous gas environment.

Features

  • Thick film technology
  • Power rating up to 2 watts at +70 °C
  • High power surge withstanding
  • Sulfur-resistant design (ASTM B-809)
  • RoHS compliant* and halogen free**
  • AEC-Q200 compliant

Applications

  • Automotive systems:
    – Driver assistant
    – Infotainment
    – Lighting
  • Power supplies
  • Stepper motor drives

The new surface mount series of precision thin film resistors helps strengthen the already broad range of surface mount chip resistors offered by Bourns. The new Model CRT-ST series
comes in four different footprints from 0402 (1005 Metric) up to 1206 (3015 Metric) and has a wide resistance value range from 1 ohm to 2.49 megohms. The new thin film chip resistors are available with four different resistance tolerance options ranging from 0.1% to 1% and also offer two different TCR options, ±25 ppm/°C and ±50 ppm/°C.

The low resistance tolerances and high precision TCR values are achieved by using thin film printing technology on ceramic substrates. The performance of these new resistors makes them suitable within high precision consumer, industrial, automation and power supply applications.

Features

  • Ultra-tight tolerance
  • Wide resistance range
  • RoHS compliant*
  • Four package sizes available

Applications

  • Current sense
  • Precision circuits
  • Printers
  • Automation equipment
  • Navigation equipment

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