Bourns has extended its CMF-SD product family of ceramic PTC thermistors to include a surface mount package that houses two resistance matched PTCs in a single ceramic housing. The product is a suitable solution for the protection of telecom line cards that require tight resistance matching of the tip and ring line.
The thermistors have been designed to match and complement the Bourns family of TISP thyristor-based overvoltage protection devices. In combination, these components can now provide equipment manufacturers with a total telecom circuit protection solution, which will enhance equipment and comply with various global telecommunication and equipment standards.
The thermistors are available in 25 Ω, 35 Ω and 50 Ω versions, with tolerances of ±10% or ±20% and resistance matching to within ±0,5 Ω. They are rated at 230 V, and can withstand maximum induction voltages of 600 V a.c. Hold current ranges from 0,09 to 0,13 A at 25°C with trip current between 0,19 and 0,26 A and time to trip below 0,3 seconds.
Converter power modules for 48 V networks Altron Arrow
Power Electronics / Power Management
The economic and quality-of-life benefits of electrification is driving the adoption of HV to 48 V DC-DC conversion across many markets with 48 V power modules becoming more common.
Read more...Memory for asset tracking Altron Arrow
DSP, Micros & Memory
The Page EEPROM, ST’s latest memory, has been designed for efficient datalogging and fast firmware upload/download in battery-operated devices.
Read more...Microchip and AVIVA Links collaboration Altron Arrow
News
Microchip and AVIVA Links have achieved groundbreaking ASA-ML interoperability, accelerating the shift to open standards for automotive connectivity.
Read more...Clearing the Static: Staying grounded Actum
Circuit & System Protection
To maintain reliable electrostatic discharge control, regular testing and accurate measurement are essential, with grounding products and ESD testing equipment being vital.
Read more...Expanded STM32WL3x line for IoT sensors Altron Arrow
Telecoms, Datacoms, Wireless, IoT
The STM32WL31x and STM32WL30x are more tailored versions of the STM32WL33x for designers who wish to focus on specific features, while lowering their bill of materials.
Read more...Ultra-low jitter clock buffers Altron Arrow
Telecoms, Datacoms, Wireless, IoT
New SKY53510/80/40 family of clock fanout buffers from Skyworks are purpose-built for data centres, wireless networks, and PCIe Gen 7 applications.
Read more...Smarter protection without disruption NewElec Pretoria
Circuit & System Protection
Designed for operations still running without integrated automation, NewElec’s retrofit-friendly systems let you upgrade performance and safety without overhauling your entire network.
Read more...Circuit breaker for reliable, compliant protection RS South Africa
Circuit & System Protection
Legrand’s low-voltage power distribution portfolio encompasses the DX3 range of miniature circuit breakers, designed to deliver dependable protection in residential, commercial and industrial installations.
Read more...Reducing noise on power supply lines Future Electronics
Circuit & System Protection
Murata has introduced the EMIFIL ESD Series Noise Filters, a breakthrough solution engineered for superior noise suppression and enhanced electrostatic discharge (ESD) protection.
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.
printer friendly version