Thick film resistor

Mar 19, 2014 27 Replies

Post it if you've got it.

John Larkin Highland Technology Inc www.highlandtechnology.com jlarkin at highlandtechnology dot com Precision electronic instrumentation

Flail away, mentally-old crap-head... I know how... you don't ;-) ...Jim Thompson

| James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.

So, you post to SED to tell people how much you know but won't reveal?

How "clever" you are, with no proof?

How's the neon model coming along? Does it behave anything like a real NE-2 yet?

John Larkin Highland Technology Inc www.highlandtechnology.com jlarkin at highlandtechnology dot com Precision electronic instrumentation

The outer blob is epoxy encapsulant, which sits on a glass layer, which seals the resistive ceramic element. Thick film is something on the order of 100um thickness, so it's not like anything you're going to be able to eyeball.

Vishay brags about "sand trimming" as being superior to laser trimming, something about hot spots and non-uniformities.

I couldn't see any sign of laser cutting. It did look like one corner had been sanded... but we could have done that when removing the plastic.

George H.

At Dickson, we did all of our trimming of thick film with automated sand blasters, even trimmed active filters. Laser trimming was only used with the thin film components.

It could well be that your component was _not_ trimmed. How was the resistor spec'd? ...Jim Thompson

| James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.

Yup, it's only a 5% resistor.

George H.

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required