ID optocoupler marked Motorola 162 18-8 Q8433 ?

On Wed, 03 Jan 2007 08:17:02 -0600, T o d d P a t t i s t Has Frothed:

Try adding an m or mcc or mca to the 162-18-8 or variables of those numbers and search via google.

I've tried that and I've tried similar searches through some component cross reference search engines and just looking for Motorola optocouplers and opto-isolators that might have similar numbers. No luck so far. Thanks for the input.

On 3 Jan 2007 08:17:02 -0600, T o d d P a t t i s t put finger to keyboard and composed:

The Q numbers could be YYWW date codes, in which case I'd be looking at a 1984 Motorola catalogue ... which I just happen to have. The pinout corresponds to "style 3". Possible devices are as follows.

Transistor output with no base connection ----------------------------------------- Devices: TIL118, MOC8111, MOC8112, MOC8113

Darlington output with no base connection ----------------------------------------- Devices: MOC119, TIL119, MOC8030, MOC8020, MOC8050, MOC8021

If you can measure the current transfer ratio, then that should tell you whether you have a Darlington or single transistor type.

- Franc Zabkar

Got an old '66 Sylvania opto catalog? J.P.

On Wed, 03 Jan 2007 21:09:55 GMT, J.P. put finger to keyboard and composed:

Sorry. I still hadn't heard about electronics then.

- Franc Zabkar

I believe they are, and that matches up with the date of manufacture.

Thanks!

One of my searches showed that Motorola made an MOC-118, so I'll measure current transfer ratio but my first guess is that the 18-8 and 18-0 numbers, which were on separate lines from the other markings, means they are a MOC-118's, corresponding to the TIL 118.

On 4 Jan 2007 09:09:02 -0600, T o d d P a t t i s t put finger to keyboard and composed:

FWIW, the difference between the MOC119 and the TIL119 is in their speed, ie 10/50 usec versus 300us. Maybe the 118 parts have similar differences ???

- Franc Zabkar