Defining/Designing Industrial Grade Products? - Page 1
Forum section: electronics / projects

author: dastructhm
author_rank: Contributor
timestamp: August 19, 2022, 02:02:54 am
content: I am improving my design, by replacing regular parts with industrial grade ones. For instance, I soldertantalumcapacitors, instead of regular SMD's.But the thing is, if I were to sell my product to my industrial users(ROV manufacturer, e.g.), how do I make sure mywholeproduct meets the level of Industrial Grade? Do I simply use every part that meets industrial level requirements, like, temperature, IP67, etc? including PCB?I don't wanna be embarassed, if they tell me it's of not industrial grade.(My project is a temperature monitoring system using STM32.)

author: ataradov
author_rank: Super Contributor
timestamp: August 19, 2022, 02:52:32 am
content: Quote from: dastructhm on August 19, 2022, 02:02:54 amThis makes no sense. No type of capacitor is inherently superior, they all serve different purpose and replacing one with the other may do more harm than good.Also, eliminating tantalums if you can meet the design criteria is as "Industrial Grade" as it gets. Making your product more expensive for no reason is not a good thing.Quote from: dastructhm on August 19, 2022, 02:02:54 amThere is no such thing. You need to lookup standards relevant to the application area and make sure your product meets them.Quote from: dastructhm on August 19, 2022, 02:02:54 amIf required by the relevant standard, yes.

author: Phoenix
author_rank: Frequent Contributor
timestamp: August 19, 2022, 03:05:20 am
content: Quote from: dastructhm on August 19, 2022, 02:02:54 amYouask the customerwhat their requirements are. If they don't have specific requirements you create the requirements based on your engineering expertise and have them sign off on it. For an ROV you'd expect the customer would have some specifics.Things to think about:Operating environment - Temperature, humidity, pollutionEMC requirementsSurge requirementsFailsafe requirementsTesting against the requirementsComponent stress and longevityProduction procedure and testing

author: Terry Bites
author_rank: Super Contributor
timestamp: August 19, 2022, 11:29:48 am
content: Dunno what a ROV is. Different markets require different levels of compliance. That will take in a very large number of parameters. There are no better or worse components, just the ones you need to achieve compliance at a sensible cost.You could buy all mil spec parts and still fail to comply if your design is poor.Start with the spec for your project and then then work towards meeting it.

author: jonpaul
author_rank: Super Contributor
timestamp: August 19, 2022, 11:34:12 am
content: Hello: Do not assume we all know your specialty acronyms: PLEASE DEFINE:ROV? Recreational Overland Vehicle?STM32? Standard Temperature Measure?Note that tantalum caps have some failure modes that are WORSE than normal lyitcs.As I understood General Definitions of Industrial and other electronics op temp ranges:Temp rangesComm 0-70 CIndustrial/Avaionic (eg DO-160) -25..+85 deg CMil/space -55...+125Chttps://en.wikipedia.org/wiki/Operating_temperatureFor EMI, transient suseptibilty PFC these classes have no relatuions.Consult the regions /appcliations applicable standares for PFC/Mains pollution, EMI radiated, EMI conducted, SafetyVaryios in UK, EU, USA, CA etc.Finally a medical complicance will be entirely different than a consumer or other....Huge topic, see the books, seminars, notes on temp ranges and compliance design.Bon chanceJon