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Electronics Buyers' Guide

Electronics Manufacturing & Production Handbook 2019


 

Armoured IP54 braking resistors
5 June 2002, Passive Components

OFEL manufactures high quality power ROF armoured resistors in aluminium cases with a high level of protection IP54. These are designed to be easily integrated in control equipment of brushless or inverter-controlled motors.

Their best performances are guaranteed when they are installed in contact with the inverter's heatsink or in contact with a metallic side of the cabinet.

Their particular shape is designed to allow for maximum use of space.

Their shape makes insertion easy. All resistor materials are incombustible and in particular, the winding is covered with cement that has a high thermal conductivity, high insulation, and is totally humidity insensitive.

Electric characteristics are:

* Standard tolerance on resistive value - ±5%.

* Temperature coefficient - <100 ppm/°C.

* Max working voltage - 1000 V.

* Standard cable length/material - 250 mm/Cu/Ni with antitearing silicone protection.

* Resister filling - high thermal-conductivity inorganic materials.

* Resistive element - alloy with a high content of nickel.

Different cable lengths and the application of a Klixon-NC thermal-contact are options. Nonstandard ohmic values are also possible.

Series ROF can also be used as anticondensation heating devices.


Credit(s)
Supplied By: AGF Technology
Tel: +27 11 623 1943
Fax: 086 678 7664
Email: agftech@agftechnology.com
www: www.agftechnology.com
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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 ...
  • Shielded power inductors
    26 June 2019, RF Design, Passive Components
    High-temperature power inductors from Coilcraft are available with inductance values from 22 to 47 µH, current ratings up to 5,5 A, and low direct current resistance (DCR). The inductors in the XAL7050 ...
  • 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, ...
  • LAN transformers and common mode inductor
    27 February 2019, Electrocomp, Passive Components
    Bourns’ inductive components product line is introducing the Model SM453229-231N7Y and SM453229-381N7Y chip LAN 10/100/1000 Base-T transformers. Unlike traditional LAN magnetics built with multiple toroidal ...

 
 
         
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