JFET Identification

[partialresponse]

I'm trying to repair a C-J preamp damaged by ESD. I cannot identify one of the damaged JFETs marked "CAL JF 1182B" ("CAL" I believe is Calogic.) The device is paired with a CAL J177 which is a Calogic P-channel FET - so the device in question is the complementary N-channel device. But I cannot find any reference to this device online, although the J177 is readily available.

I'd appreciate any help.

Thanks
Kofi

 

[EUVL]

The closest complementary to J177 is J113, also available from Calogic, among others.


Patrick

 

[partialresponse]

Yes, the characteristics of the J113 seem close to what the circuit was designed for. I will give these a try. But if anyone knows exactly what device the markings correspond to I'd like to know.

Thanks very much.

-Kofi

 

[osscar]

Hi,
Do not forget that different manufacturers have different pin-out for j113!

regards

o.

 

[win33]

Can I change j177 & j113 with 2sk170 & 2sj74 ?

 

[bsas]

Sorry to resurrect this thread, but I need the same thing. An identification would be good, but, replacement/equivalent pairs would work too... 🙁