Passive Components


Resistors boost working voltages

22 October 2003 Passive Components Surveillance

Design engineers working on high-voltage power applications requiring high pulse load capability in a compact body size can now benefit from a new resistor with a working voltage of 3,5 kV.

TT Electronics Welwyn Components is offering the MH series of UL-approved flameproof resistors that gives an extensive resistance range of 100 kΩ to 1 MΩ at 1% tolerance and a TCR of 100 ppm/°C. Complying with BS EN60065, the metal film resistors are ideally suited to high-voltage power supplies, motor speed control for domestic appliances, barrier resistors in tele-visions and capacitor bleed resistors.

The MH series is available in two standard sizes with limiting element voltages of 1,6 and 3,5 kV with corresponding power ratings from 0,25 to 0,5 W at 70°C ambient. They are rated for operation from -55 to +155°C.

For further information contact Leslie Govender, Arrow Altech Distribution, 011 923 9600, [email protected]



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Genetec launches Cloudlink 2210
Genetec Infrastructure Surveillance
New cloud-managed appliance addresses the practical challenges when adopting a cloud-managed model at scale, including storage costs, support for devices that do not enable direct-to-cloud connectivity, and the need to maintain local operation during connectivity disruptions

Read more...
Enhancing control room operations
iFacts Security Services & Risk Management Surveillance
As South Africa faces complex and more advanced security challenges, the demand for advanced surveillance solutions, including CCTV and security control rooms, continues to surge, but what about the people in front of the screens?

Read more...
The AI goldrush has a credibility problem
Refraime Editor's Choice Surveillance AI & Data Analytics
The single most important question a surveillance buyer can ask is deceptively simple: “Was this system programmed or was it trained?” That question alone will reveal more about what you are evaluating than any feature list or marketing video.

Read more...
Crime behaviour insights more important than ever
Leaderware Editor's Choice Surveillance Training & Education AI & Data Analytics
Behavioural surveillance skills are as essential now as they have ever been, especially in situations where quick evaluation of context is needed. Training operators in behavioural recognition skills is a vital part of control room success.

Read more...
Security’s three defining forces for 2026
Milestone Systems AI & Data Analytics Surveillance IoT & Automation
As we move into 2026, several technology trends that were once mostly confined to research labs and conference keynotes are now becoming part of the daily reality of the security industry.

Read more...
From false alarm filtering to intelligent decision-making
DeepAlert AI & Data Analytics Surveillance
As AI continues to evolve, the most successful surveillance operations will be those that not only reduce nuisance alerts, but also derive meaningful business intelligence from video data.

Read more...
Compact 6 A automotive buck converter
Altron Arrow Power Electronics / Power Management
Delivering up to 6 A of continuous output current, the DCP0606Y from STMicroelectronics enables efficient regulation of low-voltage rails commonly used in modern vehicle electronics and industrial systems.

Read more...
Next-gen modules for rugged edge AI systems
Altron Arrow Computer/Embedded Technology
Designed for real-world edge deployments where systems do not sit still, SolidRun’s P100 COMx6 series targets mobile platforms as well as harsh, mission-critical environments.

Read more...
Camera Selection Guide 2026
Camera Selection Guide Surveillance
The Camera Selection Guide 2026 features a range of cameras designed to meet a wide variety of needs and use cases for professional security operations.

Read more...
Storage Selection Guide 2026
Storage Selection Guide Surveillance
The Storage Selection Guide 2026 provides video storage and management options customised for small, medium, and large surveillance operations, ensuring effective support for various security requirements.

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