Questions tagged [rohs]

Restriction of Hazardous Substances (RoHS) is a European Union (EU) directive aimed at reducing the amount of hazardous substances used in electronic systems. It covers several types of materials and lead is a common concern. RoHS compliance is generally required to sell products in EU countries.

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Information required on RoHS Declaration Class( & Exception 7A) for MOSFET NVTFS5C471NLWFTAG

I need clarification regarding ROHS compatibility of NVTFS5C471NLWFTAG(n-Channel MOSFET). Document given by onsemi says Now, I need to confirm this ROHS compliant or not? Because the exception calls ...
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2 votes
1 answer
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How to prove ROHS compliance of a component

I emailed the supplier of an OLED panel that comes mounted on a PCB that contains the driver circuitry, and they claim the part is ROHS compliant. I will be using this component in a system that I ...
2 votes
1 answer
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Greener way to design a PCB

Lets say we are designing a very simple PCB and there is a layer(s) where not much is going on, from an environmental perspective alone would it be better to leave the layer with a large ground copper ...
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Health hazard of cadmium plated connectors

I don't know if this is the right place for my question. Anyways: We work with cadmium plated nickel-base connectors. These are "Amphenol SJRT series" connectors. See this image: Catalog ...
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2 answers
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What do these two icons mean?

Left one - "no plumbum/lead" Right one - "triangular invert color no picking by hand" (found on BeagleBone Green)
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Quintic QN8007B RoHS information?

We are planning to use the Quintic QN8007B FM transmitter in our new design because it is quite cheap and has I2S interface. I believe this chip is no longer produced, but it is possible to get hold ...
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CE/FCC/RoHS/etc certification for Intel NUC and other barebone MiniPCs?

Intel sell the Intel NUC without a hard drive or ram. They provide a list of compatible rams and drives. By sliding in the ram stick and drive, am I not invalidating all of the certificates on the ...
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Ambiguous Lead Exposure in USB Audio Interface

I recently purchased a midtier USB audio interface which I found this warning. Would it be safe to assume that the product just uses lead solder? I know there are sensitive analog components here -- ...
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1 answer
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What is the main factor silver in solder wire?

Previously I was using traditional soldering wire 60/40 Sn/Pb (stannous)(lead). Restriction of Hazardous Substances (RoHS) says that Pb (lead) is dangerous for environment. So we should not use lead. ...
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4 votes
2 answers
951 views

How safe is using non-RoHS parts?

I was wondering the safety of using non-RoHS parts for hobby projects. I already use non-leaded solder, but some of the parts I have are not RoHS compliant. How much would I, and my family, be exposed ...
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How to calculate\estimate thermocouple junction of a solder junction between a PCB and a component

Thermal junctions between two dissimilar metals on a PCB can create voltages. How do I estimate or bound (by estimating a max voltage via a max temperature) the thermocouple effect on a pcb? Most ...
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1 vote
1 answer
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Is perfboard generally lead-free?

While shopping for perfboard/protoboard, the only products I've found listed as RoHS are brand-name items, costing several times that of the generics. Is perfboard/protoboard inherently free of lead, ...
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FCC, ROHS and CE certification and compliance [closed]

I have design a PCB which has Stepper driver, micro-controller, 204JHD display, MOSFETS for driving fans and TRIACS for driving heaters.There is not RF components on the PCB. What are the criterias ...
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Does the RoHS standard apply to variable frequency drives?

I'm having a bit of a disagreement with a customer about whether RoHS applies to variable frequency drives and comparable equipment. This is complicated by my understanding that RoHS is being rolled ...
3 votes
1 answer
348 views

Is there a correct way to document RoHS compliance?

I work for a small electrical engineering company. Our products are not presently RoHS, but we're planning to switch over. As best I can tell, this is a matter of ensuring that our individual ...
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What makes lead-free solder harder to use? [duplicate]

Soldering in a RoHS-compliant way normally means using a solder that does not contain lead - the metal that made up most part of common solder before. Handsoldering using lead-free solder seems to be ...
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Lead free compliant question

Do hand tools such as cutters and pliers have to be replaced to switch over to lead free soldering station to be compliant?
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What lead-free solder type is convenient to use for hand-soldering?

I have read some discussions about the lead-free solders on the forum, but could not see what solder type is easier to use for hand soldering (among lead-free ones)? As an example, I see only two ...
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-1 votes
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European RoHS directive - is it a nonsense? [closed]

I live in European Union. We have RoHS directive here. Each European Union member state will adopt its own enforcement and implementation policies using the directive as a guide. RoHS is ...
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6 votes
1 answer
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Non-wet open solder fault on the same ball of two different devices of the same part?

Sophisticated PCBA, with a DM6446 using two 16 bits DDR2 devices to implement a 32 bit memory space. On some boards, we see a stuck bit on either bit 24 or bit 8, which map to the same BGA ball (C8) ...
8 votes
1 answer
455 views

Are there compliance problems with selling products with exposed PCBs?

If I were to go to mass production with a consumer product is there a good guide on making sure I was following the correct compliances so that stores would accept selling it? For example can part ...
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6 votes
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Are low volume products RoHS exempt in the EU?

Are small companies that intend to sell less than 100 units in the EU market required to comply with RoHS? This Forbes article seems to state that exemptions are possible till 2017? REACH and RoHS ...
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Any issues with changing to lead-free solder?

I'm thinking of changing to lead-free solder. I've heard some people prefer a traditional Pb/Sn solder, but haven't heard any specific reasons why. I'm mostly doing through-hole work, and I have a ...
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When Does Lead-Free Matter?

When shopping for components it's common to find a lead-free or RoHS-compliant version of the part along side one that is not. Under what circumstances does it matter that I chose exclusively lead-...
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