Outgassing of space materials, screening tests for COTS components
- Posted by Alejandro Herrera
- On December 3, 2019
- 0
Materials and components used for the manufacture of the spacecraft systems, must be able to withstand the damaging environmental conditions of space during their operation, in the specific mission for which they are designed. Outgassing, physical phenomenon known as the gradual release of volatile molecular compounds from a material or surface, due to the exposure to the extreme vacuum of the outer space environment, and accelerated with temperature increase, can lead to the damage and degradation of spacecraft component and instrument performance, endangering the mission success.
Considering the risk of retinning on QFN package
- Posted by Manuel Sánchez Ruiz
- On May 19, 2020
- 0
The use of new packages on space market has come hand in hand with the introduction of commercial of the shelf (COTS) parts in the business and even more with the New Space needs.
Webinar – Failure Analysis Of Single Electronic Devices
- Posted by doEEEt Media Group
- On August 31, 2020
- 0
In this webinar, Dimas Morilla from Alter Technology provides a brief overview of some basic elements that influence the definition, development and conclusions of a Failure Analysis.
Raw Materials for MLCC, Chip Resistor are in Short Supply in 2019
- Posted by doEEEt Media Group
- On June 26, 2019
- 0
The Passive Component Raw Material Index has shown that costs to produce certain types of capacitors and resistors, with emphasis on MLCC and thick film chip resistors, have increased between FY2017 and FY2019
Surface Mount Resistor Selection Guide
- Posted by doEEEt Media Group
- On December 2, 2020
- 4
Surface mount chip resistors are ubiquitous. Hundreds of billions of these devices are sold every year into myriad applications from handheld devices to precision lab test equipment to aerospace electronics and others. Chip resistors and associated technologies are discussed from the standpoints of types, functionality, device design, and applications as well as circuit design and power rating considerations.
TAS’ Experience with AEC Devices in Launcher Applications
- Posted by Luis de Pablo Martinez
- On December 3, 2019
- 0
This document will detail the TAS’s experience with automotive devices in the frame of launcher applications (Ariane-6 & VEGA). Main findings in constructional analysis (more than 90 constructional analysis done), incoming visual and Fischerscope and comparison with “Enhanced Plastic” Parts and Other COTS will be described. Extension of Constructional Analysis Table of ECSS-Q-ST-60-13C for RoHS application (e.g, solderability), and for active parts will be proposed. Experience with Manufacturer support for Reliability Data & PPAP report on AEC devices. Procurement lessons learnt with big suppliers (Arrow, Mouser, Digikey, Avnet, etc..) for traceability, lot homogeneity, packaging, storage, incoming, counterfeit, export license, etc. will be
also described.
Flammability UL94 and What It Means
- Posted by doEEEt Media Group
- On March 23, 2021
- 0
UL94 flammability test that are referred by number of manufacturers using plastic materials such as moulding packages? Omnexus, the material selection platform for plastic material by SpecialChem provides an overview of the test in details.
Permeability concept in Inductors
- Posted by Tomáš Zedníček
- On March 4, 2021
- 0
Permeability describes an important effect in ferromagnetic materials. If a ferromagnetic material is placed in a magnetic field, it is observed that the magnetic flux becomes concentrated in this material. Analogous to electric resistance, the ferromagnetic material presents a good conductor for the field lines. Permeability may therefore be described as a magnetic conducting or penetrating property.
Film and Foil Organic Dielectric Capacitors
- Posted by doEEEt Media Group
- On September 5, 2022
- 0
Film capacitors are essential electrostatic capacitors suitable for medium, higher voltage, and higher current circuits. Unlike most other dielectric systems, film capacitors feature a low loss factors at very low temperatures.