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26 votes
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What is this symbol? (assumed compliance mark like CE / FCC)

I was wondering this myself, however some fairly extensive image digging revealed that it’s something approximate to the Japanese equivalent of the FCC certification mark, sometimes called Giteki. ...
Jonathon Hodges's user avatar
20 votes
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Electronics System Standards Compliance: Certification, Testing & Verification

I can only answer this question from my point of view, so I am doing so to start the conversation, not because I expect this to be an exemplary response! EDIT: there is a VERY good ESE answer here ...
stefandz's user avatar
  • 4,152
18 votes
Accepted

At what level of complexity should I consider UL listing my widget?

Its not about how much you sell or liability (a mark doesn't protect you from anything if you burn someones house down, but a safety mark will help prevent you from making mistakes) I would also like ...
Voltage Spike's user avatar
  • 83.4k
13 votes

At what level of complexity should I consider UL listing my widget?

The questions you need to be asking are. Is there even a remote possibility that this widget can catch fire or electrocute someone? If the answer is yes, (which it almost always is) then. How big ...
Trevor_G's user avatar
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11 votes
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Impact on FCC certification due to replacement of GPS receiver module

For FCC it comes down to whether you can make a compelling engineering argument that there should be no change in system behaviour, and whether you are willing to take the financial/reputational risk. ...
colintd's user avatar
  • 7,853
9 votes

Is there a standard which requires a high voltage warning label on a PCB?

IEC61010: Safety requirements for electrical equipment for measurement, control, and laboratory use PCBs with hazardous voltages should be protected with an enclosure, and should not be reachable ...
jpa's user avatar
  • 8,703
8 votes

Electronics System Standards Compliance: Certification, Testing & Verification

The answer to the question depends on where in the world you are located. Let us for discussion's sake assume Europe. The rest of the world seems to be accepting or even adapting to the European ...
Lundin's user avatar
  • 20.6k
8 votes

Is there a standard which requires a high voltage warning label on a PCB?

Generally there should be a protective element preventing general public, machine operators and service personnel from getting into contact with a live part. That means that the PCB should be ...
Ralph's user avatar
  • 3,464
6 votes

Electronics System Standards Compliance: Certification, Testing & Verification

From someone actually having done some serious work on the certification business of a medical device. Others already wrote at great length so I'll just add some other points. 1st, you cannot know ...
Barleyman's user avatar
  • 3,656
6 votes
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Are rechargeable li-ion considered primary batteries if charging is not available on the device?

The standard in question, IEC 60601-1 refers to two other standards: Primary lithium batteries shall comply with the requirements of IEC 60086-4. Secondary lithium batteries shall comply with the ...
jpa's user avatar
  • 8,703
5 votes

Is it feasible for an amateur to bring to market a product with a lithium battery?

You don’t need to sell the device with a battery of course. The user can provide their own cell, like it’s done for the vaping devices. But then if something happens it’s a blame game between the ...
Kuba hasn't forgotten Monica's user avatar
5 votes

Double insulation for battery operated device

Double insulation might be needed for protection against electric shock (chapter 6 of 61010-1). It says: ACCESSIBLE parts (see 6.2) shall not be HAZARDOUS LIVE (see 6.3). The minimum dc voltages for ...
Lars Hankeln's user avatar
  • 2,763
4 votes
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USB 2.0 droop testing

I would like to jump in on the question. For droop testing a specific a specific test fixture is used to simulate the Droop. You need to load the port under test with the droop portion of the ...
Jan Claes's user avatar
  • 341
4 votes
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IEC 61000 vs IEC 61326? Electromagnetic compatibility(EMC)

IEC 61000 are "basic" standards which contains the measurement techniques. IEC 61326 is a Product Family standard which contains conditions, limits and performance criteria for equipment for ...
Martin's user avatar
  • 8,430
4 votes
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Pi Filter Option

DNP the capacitors and populate a 0-ohm resistor in place of the inductor? This is the easiest and most obvious one to do DNP the capacitors and populate a 100-ohm resistor in place of the ...
Neil_UK's user avatar
  • 168k
4 votes

Is a system powered by an FCC-compliant power supply FCC-compliant if the rest of the system doesn't require compliance?

[Bypassing the question whether or not you actually need compliance, and what kind of compliance do you need.] A system isn't automatically compliant if it uses a compliant (FCC, IEC, CE) power supply....
Nick Alexeev's user avatar
  • 38.2k
4 votes

Are rechargeable li-ion considered primary batteries if charging is not available on the device?

I don't know how it relates to the standards according to your compliance needs, but I think rechargeable lithium batteries still are classified as rechargeable lithium-ion batteries, even if you omit ...
Justme's user avatar
  • 152k
4 votes
Accepted

Is there a standard which requires a high voltage warning label on a PCB?

I don't think you really need a standard to help you decide whether you should put a warning label on a PCB; I think you can use common sense and put one on even if the voltage might not be generally ...
Andy aka's user avatar
  • 460k
4 votes

Is there a standard which requires a high voltage warning label on a PCB?

For military applications, the requirements for labeling are given in MIL-HDBK-454C section 4.8: "danger, warning, caution, signs, labels, tags, and markings should be used to warn of specific ...
C. Dunn's user avatar
  • 1,319
3 votes

Compliance Testing Strategies

You're definitely on the right track with: I tested the product in these configurations, and they represent a superset of all possible configurations, and they all met the regulatory standards; ...
Jim's user avatar
  • 1,657
3 votes

At what level of complexity should I consider UL listing my widget?

Trevor's answer is a good one. Liability is one of the primary reasons to become UL-listed. Here are some additional thoughts: Underwriters Laboratories ("UL") is only one of many testing and ...
bitsmack's user avatar
  • 16.9k
3 votes

Bluetooth Compliance and Qualification

NO -- NOT ALL USERS of the Bluetooth Trademark are required to be Bluetooth SIG members, nor to get their approval in any way. SOME USERS of the Bluetooth Trademark can be exempt, under the legal ...
user341883's user avatar
3 votes
Accepted

IEC 61010 table for creepage distances

It actually gets even nastier: if you coat the board the clearance become different (and creepage somewhat 'disappears', and pollution level decreases). The reason for different columns is that you ...
Lorenzo Marcantonio's user avatar
3 votes
Accepted

Who pays royalties to whom for the patents that form 802.11 standard

I will use WiFi and 802.11 interchangeably for the sake of this question. In the context of this question, that's an extremely confusing idea: Wifi is a trademark, and protected by additional laws ...
Marcus Müller's user avatar
3 votes

How should electronic products' power requirements be labeled?

You should mention the worst case steady state power that the device can be expected to draw under any use case, rounded up to at most two significant figures. "Steady state" here basically ...
pipe's user avatar
  • 14.4k
3 votes
Accepted

What are the compliance certifications needed to sell a custom microcontroller board?

Potentially none, if you are selling it as an evaluation board, not a finished product. I can't speak for the oodles of random boards on the market, but major manufacturers are generally careful to ...
Tim Williams's user avatar
  • 36.4k
3 votes
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Regarding the impact of length increase of power cord on the EMC-EMI performance of electronics device

Sure. In the EMC testing lab, the cable is terminated into a LISN (Line Impedance Stabilization Network). Wavelengths on par with the length of the cable, may be radiated. (Lower frequencies being ...
Tim Williams's user avatar
  • 36.4k
3 votes

Does a system assembled from CE marked parts (consumer products) still require CE testing?

UL (CE?) is so non-engineers can do electrical work The point of UL Listing is to say "there is a reasonable path by which a non-engineer can apply this product safely". As such, it is ...
Harper - Reinstate Monica's user avatar
3 votes

How to investigate cause of EMC Pre-compliance failure?

First of all, note that some industrial applications might actually require 100V/m susceptibility (such as land-moving machinery, stone crushers, drilling rigs etc). I also find it weird that general ...
Lundin's user avatar
  • 20.6k
3 votes

Are rechargeable li-ion considered primary batteries if charging is not available on the device?

Yes, they are secondary cells, regardless of their use. Consider instead lithium cells (primary). For example, lithium metal coin cells, or lithium thionyl chloride cells.
Davide Andrea's user avatar

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