Different SMD can capacitor markings

[barber02]

I am currently working on a Stetsom EX6000 and I noticed some of the SMD can capacitors have different markings on them and I was wondering what the differences mean.

The standard SMD can caps are marked up in black stencil CS but I noticed that some of the SMD can caps are marked up in blue stencil MRS.

What’s the difference?

David

 

[Osvaldo de Banfield]

The color of the painting is meaningless. The real important thing is the value: 100µF @ 50V in the first two and 47µF @ 25V in the second.-

 

[barber02]

Ok. So the CS and the MRS doesn’t mean anything. Probably just a different manufacturer.

 

[Osvaldo de Banfield]

I presume the same. color perhaps identify the manufacturer, or lot number. Who, knows. But really important is the value, voltage rating an eventually tolerance and temperature limit.

 

[Perry Babin]

The letters are likely the series for the manufacturer (each series having it's own pros/cons). The color could indicate that the capacitors are low impedance polymer electrolytics/tantalums.

 

[Osvaldo de Banfield]

Tantalum? Usually tantalum are prisms, black or yellow. Aluminum cans usually are 'lytics.

 

[Perry Babin]

Tantalums are electrolytic capacitors.

 

[Osvaldo de Banfield]

Yes, OK, you are true, but a special case of electrolytic. Usual aluminum cans are aluminum electrolytic capacitors.