I've got the following options to replace a PNP 2sa1469?
What would be the best suited on and why?

 

Insufficient information.

1. What is the switching frequency of the intended circuit?
2. What is the supply voltage?
3. What current gain do you need?

A schematic would be helpful.

 

Insufficient information.

1. What is the switching frequency of the intended circuit?
2. What is the supply voltage?
3. What current gain do you need?

A schematic would be helpful.

Thanks for the reply. It is to replace Q104 and Q101. The original 1409 was a 100mhz with current gain between 70 to 280 @2v1A. Supply is 6.5v. That is what I know about the circuit.

 

Just about anything should work here. Based on the original device package of TO-220ML, I'd suggest the 2SA2222SG. https://www.digikey.com/products/en...03a&quantity=&ColumnSort=0&page=1&pageSize=25

 

Just about anything should work here. Based on the original device package of TO-220ML, I'd suggest the 2SA2222SG. https://www.digikey.com/products/en/discrete-semiconductor-products/transistors-bipolar-bjt-single/276?k=&pkeyword=&sv=0&pv1291=3009&sf=1&FV=1280002,1f140000,mu10A|2101,mu12A|2101,mu14A|2101,mu15A|2101,mu5.1A|2101,mu5.3A|2101,mu5.5A|2101,mu5.7A|2101,mu5A|2101,mu6.2A|2101,mu6.6A|2101,mu6A|2101,mu7A|2101,mu8A|2101,mu100V|2103,mu25V|2103,mu30V|2103,mu32V|2103,mu35V|2103,mu40V|2103,mu45V|2103,mu50V|2103,mu60V|2103,mu65V|2103,mu70V|2103,mu75V|2103,mu80V|2103,mu90V|2103,ffe00114,40316e,40203a&quantity=&ColumnSort=0&page=1&pageSize=25

Is that a big problem if the frequency is a bit higher at 230mhz instead of the original 100mhz?

 

Q101 is operating at DC, and Q104 probably at less than 100 KHz. You don't need a transistor that is good to 100's of MHz.

 

Q101 is operating at DC, and Q104 probably at less than 100 KHz. You don't need a transistor that is good to 100's of MHz.

Thanks so much! Would you be able to let me know an equivalent npn?

Maybe a 2SC6144SG

https://www.digikey.com/product-detail/en/on-semiconductor/2SC6144SG/2SC6144SGOS-ND/3536834