mobile | classic
Dataweek Electronics & Communications Technology Magazine





Follow us on:
Follow us on Facebook Share via Twitter Share via LinkedIn


Search...

Electronics Buyers' Guide

Electronics Manufacturing & Production Handbook 2019


 

Precision resistors
18 August 2010, Passive Components

Vishay has announced a new series of high-precision Bulk Metal Z-Foil resistors built using Z1-Foil technology that features enhanced accuracy, stability and fast thermal stabilisation in sizes small enough for permanent assembly in operational equipment.

The SMR3P devices feature a TCR of ±0,5 ppm/°C maximum (+25°C to


+125°C), tolerances to 0,01%, load-life stability of ±0,005% (50 ppm) after 10 000 hours with 0,6 W at 70°C, and PCR (ΔR due to self-heating) of ±5 ppm at a rated power of 0,6 W at +70°C or 0,3 W at +125°C.

The SMR3P series is targeted at feedback devices for operational amplifiers, precision voltage dividers, precision bridge resistors and decade voltage dividers in precision amplifiers; high-precision instrumentation; medical, industrial, high-end stereo and automatic test equipment; electron beam and pulse applications; and measurement instrumentation.

Chips of 1206 and larger dimensions occasionally delaminate from the PCB or develop cracks due to the stresses introduced by handling of the PCB and thermal shock. The SMR3P features a moulded package with flexible terminations that ensure minimal stress transference from the PCB due to load-induced temperature gradients and a difference in thermal coefficient of expansion (TCE). The SMR3P’s low absolute TCR reduces errors due to temperature gradients, thus reducing a major source of uncertainty in precision circuits. The resistors can withstand unconventional environmental conditions, including the extremely high temperatures and radiation-rich environments of down-hole oil exploration and well logging, or the deep-sea underwater repeaters in cross-ocean communications.

The SMR3P series features electrostatic discharge (ESD) immunity up to 25 000 V, a thermal stabilisation time of <1 second (nominal value achieved within 10 ppm of steady-state value), current noise of 0,010 μVRMS/V of applied voltage (<-40 dB) and a voltage coefficient of <0,1 ppm/V. The devices offer a resistance range of 100 Ω to 15 kΩ. Vishay Foil resistors are not restricted to standard values, and can be supplied with ‘as required’ values (eg, 1,0002 kΩ vs. 1 kΩ) at no extra cost or delivery time. The resistors offer a non-inductive


(< 0,08 μH), non-capacitive design and feature lead-free or tin/lead alloy terminal finishes.

For more information contact Marian Ledgerwood, Future Electronics, +27 (0)21 421 8292, marian.ledgerwood@futureelectronics.com, www.futureelectronics.com


Credit(s)
Supplied By: Future Electronics
Tel: +27 21 421 8292
Fax: 086 623 4522
Email: craig.hemmes@futureelectronics.com
www: www.futureelectronics.com
  Share on Facebook Share via Twitter Share via LinkedIn    

Further reading:

  • Consumer grade power inductors
    26 June 2019, Electrocomp, Passive Components
    Bourns is introducing the Model SRP7028C, SRP1038C and SRP1770C high-current shielded power inductor series, designed to meet today’s high current density requirements in various types of consumer electronics ...
  • High-current shielded power inductors
    26 June 2019, Electrocomp, Passive Components
    The inductive components product line at Bourns has created the Model SRP5050FA and Model SRP7030CA high-current shielded power inductor series, designed to meet today’s high current density requirements ...
  • Time-to-digital converter
    29 May 2019, Future Electronics, Analogue, Mixed Signal, LSI
    ams has introduced the AS6500, a new high-resolution time-to-digital converter (TDC) featuring CMOS inputs and compact packaging for use in space- and cost-constrained applications. It can measure time ...
  • Automotive qualified chip resistors
    29 May 2019, Electrocomp, Passive Components
    Bourns announced the introduction of its new sulphur-resistant, AEC-Q200 compliant thick film chip resistor series. The new Model CRxxxxA-AS series is available in eight different footprints from small ...
  • Inductor learning kit
    30 April 2019, Würth Elektronik eiSos, Passive Components
    Co-developed by Würth Elektronik eiSos and Texas Instruments, the TI-PMLK Buck Würth Elektronik Edition is a learning kit to autonomously study the impact of magnetics in a power supply using a buck board ...
  • Rugged AC filter capacitors
    30 April 2019, Electrocomp, Passive Components
    TDK has introduced a new series of AC filter capacitors that are UL 810 approved at the component level and carry the CE mark. The capacitors of the B32354S3* series are designed for a rated voltage of ...
  • High-voltage double chokes
    27 March 2019, Würth Elektronik eiSos, Passive Components
    With its WE-TDC HV, Würth Elektronik eiSos has introduced a further double choke optimised for SMT assembly. The magnetically shielded 1:1 transformer, with an isolation voltage of 2 000 V, boasts very ...
  • Moulded power inductors
    27 March 2019, RF Design, Passive Components
    Coilcraft introduced its new XGL4020 series of high-performance moulded power inductors at this year’s Applied Power Electronics Conference (APEC) in California, USA. They feature very low DC and AC losses ...
  • RM6 and RM10 transformers
    27 March 2019, Würth Elektronik eiSos, Passive Components
    The new MID-OLRM extended rail RM6 and RM10 transformer series for offline applications is now available from Würth Elektronik. For the past 30 years, the RM packages have required flying leads to meet ...
  • G.fast transformers
    27 March 2019, Würth Elektronik eiSos, Passive Components
    Würth Elektronik announced the release of additional G.fast transformers to the MID-DSLSCK family approved for use with Sckipio chipsets. These transformers cover both the 106 MHz and 212 MHz G.fast profiles ...
  • High-power thick-film resistors
    27 February 2019, Electrocomp, Passive Components
    Bourns announced the introduction of the new Model PWR221T-50 series high-power thick-film resistors. This series is available in a compact TO-220 package utilising thick-film on ceramic technology, ...
  • Power modules for EVs
    27 February 2019, Future Electronics, Power Electronics / Power Management
    ON Semiconductor has launched new automotive intelligent power modules (IPMs) that offer high power density and overall performance in on-board charging (OBC) and other high-voltage DC-DC conversion applications ...

 
 
         
Contact:
Technews Publishing (Pty) Ltd
1st Floor, Stabilitas House
265 Kent Ave, Randburg, 2194
South Africa
Publications by Technews
Dataweek Electronics & Communications Technology
Electronics Buyers’ Guide (EBG)

Hi-Tech Security Solutions
Hi-Tech Security Business Directory

Motion Control in Southern Africa
Motion Control Buyers’ Guide (MCBG)

South African Instrumentation & Control
South African Instrumentation & Control Buyers’ Guide (IBG)
Other
Terms & conditions of use, including privacy policy
PAIA Manual





 

         
    Classic | Mobile

Copyright © Technews Publishing (Pty) Ltd. All rights reserved.