How does a Metal Film resistor look different to a Metal Oxide Resistor?

Thanks for your help, folks....

 

** It is indicated on the box they come in -

you Google Groper fuckwit .




........ Phil

 

The difference is under the conformal coating. They might look the
same, although many metal oxide resistors are made for higher voltage,
and are sometimes larger.

The metal film (or the metal oxide film) is sputtered on the body of
the resistor, and then trimmed up to value (laser trimmed or,
surprisingly on larger resistors, sometimes by simple abrading) before
being coated. The metal itself is an alloy, and the line between metal
film and metal oxide film isn't all that definite.

If you're wondering, look at the ohmic value of the resistor you're
trying to replace. If it's physically small and high ohms (over 1
meg), it's probably metal oxide. But you choose the resistor based on
the ohmic value, the wattage, the tolerance, the drift specs, and the
voltage withstand capability. The composition of the resistor metal is
what works.

Possibly you might want to offer a more descriptive question, like:

* Do you know any or all of the above choice parameters?

* Is this a repair/replacement issue, a design issue, or are you just
asking?

Good luck
Chris

 

I'm sure the box you came in was marked "toxic waste"


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida

 

One's got slanty eyes ! ;-)

Graham

 

Before, and after! ;-)


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida

 

"Michael A. Terrell" = ASD fucked, schizo



** I'm damn sure the box they bury this manic, psychotic **** in will be
marked "toxic waste".







......... Phil

 

How did the sex change turn out, and are you making any money from
the sailors yet?


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida