Hi. Attached is a resistor network with two resistors (100ohm and 1000ohm) in series. Any one know where to order such resistor network? I google "resistor network" but could not find any one with 3 pins.

Best,
Sifang

 

Are there any markings that indicate who makes this?

I'd suggest looking at the big distributors, like Mouser and DigiKey.

 

Why bother? Just use two separate resistors.

 

That looks like it's just two chip resistors soldered onto a broken-off piece of SIP header, not an actual product.

 

I agree with KJ6EAD, looks like someone just soldered 1206 SMD resistors onto a 3 pin SIP header..... I have never heard of multiple value resistor networks before .....

 

I know an under employed technician. For the right price he'll make you as many as you want. You interested?

 

That looks like it's just two chip resistors soldered onto a broken-off piece of SIP header, not an actual product.

By golly, you are so right. Good eye!

 

Thanks, guys. You are right. Rookie mistake. I am a rookie, btw.

I agree with KJ6EAD, looks like someone just soldered 1206 SMD resistors onto a 3 pin SIP header..... I have never heard of multiple value resistor networks before .....

 

I agree with KJ6EAD, looks like someone just soldered 1206 SMD resistors onto a 3 pin SIP header..... I have never heard of multiple value resistor networks before .....

Rookie question:
I know SMD=Surface Mount Device
But what does "1206" mean? I googled but can't find the answer easily.

 

1206 refers to the dimensions of the SMD chip, 0.120 x 0.063 inches.

Those resistors look like 0805 to me, 0.080 x 0.050 inches.

 

They're size 1206. Compare the 0.100" spacing of the pins to the 0.120" length of the resistors.

 

Looks like you're right.

 

I have never heard of multiple value resistor networks before.

You can get all kinds of resistor networks, single value, dual value, R/2R, decade dividers and more.

 

You can get all kinds of resistor networks, single value, dual value, R/2R, decade dividers and more.

You learn something everyday

I have heard of R/2R's, decade dividers and such, but just not a sip resistor network with multiple values..... I have always used SIP resistor networks with different numbers of resistors, just not with mixed values.....

 

They're size 1206. Compare the 0.100" spacing of the pins to the 0.120" length of the resistors.

The definition of spacing of the pins is not center to center, right? I.e., Center to center (~0.120") > spacing of the pins (inside-to-inside spacing 0.100")

 

The definition of spacing of the pins is not center to center, right? I.e., Center to center (~0.120") > spacing of the pins (inside-to-inside spacing 0.100")

those dimensions refer to center to center, so the pins are .100" center to center and those resistors are overlapping the pins by approximately .010 " which are .120" end to end, since those are measured by size (length and width).

 

But notice that the two together are extending beyond .200"

 

But notice that the two together are extending beyond .200"

?? Well of course it would!

 

It's not the first of April is it?

 

If you look at a typical datasheet you will find the dimensions given in millimeters. The 0805 is actually 2 mm x 1.25 mm. Divide each of those dimensions by 25.4 mm/in and you get approximately .08" x .05". It is not exact but close enough.