Relays enter fifteenth year of continuous testing without single failure
6 April 2005
News
According to Teledyne Relays two types of its solid-state relays that are used in the military and aerospace industries have entered their fifteenth year of continuous testing, each achieving more than 304 million cycles with no failures.
Teledyne began testing two CD21CD and two HD22CF relays on 20 August, 1990. The Series CD - rated up to 2 A, 60 V d.c. - is a ceramic, 6-pin DIP relay that provides optical isolation and short-circuit protection. The Series HD - rated up to 2 A, 60 V d.c. - is a metal, 14-pin DIP relay that offers true output status feedback and short-circuit protection. Both are hermetically sealed.
The goal is to compare real-life performance with the mean-time-between-failure requirements, according to Antonio Gallegos, product-marketing engineer. The relays were tested under their maximum specified operating conditions, with no heatsink and no current derating. Each part has been exposed to these conditions for more than 84 000 hours - the only interruptions being for testing at every 5 million cycles and calibration every six months.
To date, Teledyne says all parts continue to pass their specification limits, including turn-on into a short and mechanical short tests.
Further reading:
From the editor's desk: Inspiring the next generation
Technews Publishing
News
Welcome to the August issue of
Dataweek. Peter Howells is still on leave, so I am back for this issue. I hope you enjoy the content and find value in it.
August is Women’s Month in South Africa,
...
Read more...
Procurement is becoming a competitive advantage
RS South Africa
News
As mining, manufacturing and industrial businesses continue to navigate rising costs, supply chain disruption and increasing pressure to improve operational performance, procurement and inventory management have become strategic business priorities rather than simply administrative functions.
Read more...
Powell Electronics signs partnership agreement with IOT Electronics
IOT Electronics
News
Powell Electronics has entered into a partnership agreement with IOT Electronics to strengthen its presence across southern Africa.
Read more...
Omniflex delivers ICCP systems across London
Omniflex Remote Monitoring Specialists
News
Omniflex has supplied impressed current cathodic protection (ICCP) systems for a range of prominent buildings across London, helping to protect reinforced concrete structures from corrosion and extending their service life.
Read more...
New appointments for Würth Electronics South Africa
Würth Electronics South Africa
News
New appointments for Würth Electronics South Africa
Read more...
MTN celebrates 80 Western Cape digital graduates
News
Eighty unemployed young people from across the Western Cape have successfully completed MTN South Africa’s Digital Skills for Digital Jobs (DS4DJ) programme, earning accredited qualifications in Data Analytics, Systems Development and Cybersecurity.
Read more...
GirlCode Hackathon 2026 kicks off across South Africa and Botswana
News
GirlCode, in partnership with Absa Group, Truecaller, MTN, SAP Fioneer, RS South Africa and other ecosystem partners, successfully hosted the first leg of the 2026 GirlCode Hackathon.
Read more...
Rooibos heads to space
News
A South African scientific initiative linking agriculture and space research has officially launched today with the Rooibos in Space programme at Parklands College’s Innovation Centre in Cape Town.
Read more...
From the editor's desk: Local can be international
Technews Publishing
Editor's Choice News
Welcome to the July 2026 issue of
Dataweek. As you can see from this introduction,
Dataweek’s regular editor, Peter Howells, is on extended leave and I am filling the void in his editor’s column – hopefully without being too boring.
Read more...
Landis+Gyr EMEA introduces new company name: EYKON
News
EYKON is the new company name of Landis+Gyr EMEA, formerly part of the Landis+Gyr Group. The company supports electricity, gas, water and thermal utilities in managing increasingly complex networks, improving operational efficiency and enabling more sustainable use of resources.
Read more...
printer friendly version