Circuit & System Protection


High-speed fuses to protect critical power electronics

31 July 2019 Circuit & System Protection

Littelfuse high-speed (semiconductor) fuses protect critical power electronics from over-currents that may cause damage to electronic equipment. The company’s high-speed fuses are reliable, very fast-acting products that can reduce the amount of short circuit current and improve the life of power semiconductor devices.

Its POWR-Speed fuses feature an innovative bridge design, arc-quenching material and a robust element to provide fast, extreme current limitation exactly where it’s needed.

The square body PSR fuses in this family are specifically designed for protection of power semiconductor devices such as diodes, triacs, IGBTs, SCRs, MOSFETs and other solid-state devices that are typically designed into power conversion and power conditioning equipment. Variable frequency drives, inverters, UPS, rectifiers and soft-starters are examples of typical equipment designed with sensitive power semiconductor devices that cannot withstand any line surge or over-current conditions and require high-speed protection.

POWR-Speed PSR series products offer optimised circuit protection at the extremely fast speed required to protect modern-day power conversion devices. Such products are commonly found in numerous applications including pulp and paper industries, cranes and heavy-lifting equipment, processing industries, wastewater treatment plants and various large factories and MRO facilities.

The new round-body QS series fuses have reduced the energy let-through by up to 70% over previous generation high-speed semiconductor fuses. They have high-performance silver fuse elements that combine with a hardened silica filler to provide enhanced system protection.

For more information contact Jeva Narian, Altron Arrow, +27 11 923 9600, jnarian@arrow.altech.co.za



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

RTLS tag module for real-time positioning
25 November 2020, Altron Arrow , Telecoms, Datacoms, Wireless, IoT
Inpixon announced the launch of its newest smart tag module, the swarm bee LE V3, supporting a range of indoor and outdoor location applications including real-time location systems (RTLS). This is ...

Read more...
The A to Z of A2B applications
25 November 2020, Altron Arrow , Editor's Choice, Telecoms, Datacoms, Wireless, IoT
An A2B device’s support for up to 32 channels of downstream audio and upstream audio on the network facilitate the distribution of multiple channels of different audio content within a single system.

Read more...
Enhanced RF connectors and terminators
25 November 2020, Altron Arrow , Interconnection
Amphenol RF has expanded its SMP product series with enhanced performance connectors and the introduction of terminators. SMP connectors are ideal for telecommunications and military applications which ...

Read more...
Double the power output from new Tadiran battery
25 November 2020, Altron Arrow , Power Electronics / Power Management
Tadiran has developed the latest in its PulsesPlus HLC battery range, doubling the power output of its previous offering. Recently the company launched the C-type HLC which represented a huge improvement ...

Read more...
High power-density TVS diodes
25 November 2020, Hi-Q Electronics , Circuit & System Protection
Today’s modern high power-density electronics are more vulnerable to electrical stresses than ever due to component miniaturisation. High-demand, scalable electronics such as smart meters require highly ...

Read more...
SiC diodes for electric vehicles
25 November 2020, Altron Arrow , Power Electronics / Power Management
As vehicle electrification continues rapid growth worldwide, innovative power technologies such as silicon carbide (SiC) are required for high-voltage automotive systems ranging from motors to on-board ...

Read more...
3-axis accelerometers with selectable ranges
25 November 2020, Altron Arrow , Analogue, Mixed Signal, LSI
The analog output ADXL354 and the digital output ADXL355 are low noise density, low 0 G offset drift, low power, 3-axis accelerometers with selectable measurement ranges. The ADXL354B supports the ±2 G ...

Read more...
Locally made single-board computer
25 November 2020, Altron Arrow , Computer/Embedded Technology
The Cherry Blossom is a small form factor single-board computer (SBC), proudly South African designed and manufactured, starting at a moderate speed of 600 MHz and extending up to 1 GHz. Designed ...

Read more...
Multimodal sensor front end
25 November 2020, Altron Arrow , Analogue, Mixed Signal, LSI
Analog Devices' ADPD4000 and ADPD4001 operate as a complete multimodal sensor front end by stimulating up to eight LEDs and measuring the return signal on up to eight separate current inputs. Twelve ...

Read more...
Double the power output from new Tadiran battery
30 September 2020, Altron Arrow , Power Electronics / Power Management
Tadiran has developed the latest in its PulsesPlus HLC battery range, doubling the power output of its previous offering. Recently the company launched the C-type HLC which represented a huge improvement ...

Read more...