If you remember Voltlog #117 in that video we analysed some ebay Bussmann fuses to try and figure out if they are fake or real fuses. The ebay fuses we’re way cheaper than anywhere else so that made me suspect they are not genuine.
It’s good to know if the ebay fuses are real or not because they are selling allot of them and people might be relying on these to perform as required when in fact they might be out of spec. For the average bench user which only occasionally goes up to 240VAC it might not be an issue if the fuse is slightly outside the specs but if you are probing some high energy circuit and relying on the ebay fuse to perform according to the datasheet at it is not then something serious might happen, like the multimeter could explode because of a high energy discharge or it could simply damage the meter which is to be avoided.
Links for the products and test equipment shown in this video:
- Welectron.com genuine Bussmann fuses.
- DMM-B-44/100-R: Ebay or Amazon.
- DMM-B-11A: Ebay or Amazon.
- LCR Meter Kelvin Test Leads 4 Wire.
- 500X USB Microscope.
- Fluke 87 V.
- Metrahit Metrawatt.
- Keysight 34401A 6.5 digit multimeter.
Excellent work, congratulations.
Did you ever get an answer from Bussman on thits.
BR
Yes, they said I should send them the fuses for analysis in the united states but I never followed up on that.