Passive Components


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.





Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Cutting-edge hybrid capacitors
Avnet Silica Passive Components
Panasonic Industry recently announced the launch of the ZVU Series Hybrid Capacitors, a cutting-edge solution tailored to meet the escalating demands of advanced electronic systems.

Read more...
Low-profile tantalum chip capacitors
Electrocomp Passive Components
These general-purpose tantalum capacitors from Kyocera AVX are available in multiple case sizes with low profile options.

Read more...
Coupled inductor for high-performance applications
Passive Components
This coil with MnZn core is characterised by its high permeability and extremely low RDC values, which achieves excellent power density and very high efficiency.

Read more...
Power inductors
iCorp Technologies Passive Components
he HTF-MP series is more suitable for complex multiphase power supply applications in design, effectively meeting the needs of ultra-thin and high-power devices.

Read more...
SMT power inductors
Future Electronics Passive Components
The Würth Elektronik WE-MXGI SMT power inductors are the latest addition to Würth Elektronik’s moulded power inductor series, engineered for high-frequency power applications.

Read more...
Large capacitance MLCCs at 100 V
RS South Africa Passive Components
TDK Corporation has expanded its CGA series for automotive multilayer ceramic capacitors to 10 µF at 100 V in 3225 size.

Read more...
Film and mica capacitors
Actum Electronics Passive Components
By utilising various polymer dielectrics plastics, Exxelia film and mica capacitors meet most technical requirements and serve all functions from standard filtering to specialised applications.

Read more...
Power-over-coax inductors
RS South Africa Passive Components
TDK has expanded the ADL3225VF series of wire-wound inductors for automotive power-over-coax (PoC).

Read more...
Thick film power resistors
Electrocomp Passive Components
Vishay has released a new product to the market, its thick film power resistor, which is offered in a clip-mount TO-247 package.

Read more...
Compact EMI suppression capacitors
RS South Africa Passive Components
These new components from TDK are 20% smaller than previous models and meet Grade III Test B standards for temperature, humidity, and bias.

Read more...









While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd | All Rights Reserved