Overall Context:

This appears to be a catalog extract from Central Semiconductor, listing various transistors and providing key specifications. The devices are available in various packaging options.

Data Structure & Extracted Information:

The data is structured with the device name on the left and several parameters across the columns. Here's the breakdown, including key parameters:

I will present the data in a table for easier readability.

Device Name	Device Type	Vceo (V)	Ic (A)	Ft (MHz)	Pd (W)	Package	Notes
2N3711	PNP	60	0.5	50		EBC
2N3859A	PNP	60	0.125			EBC
2N3860	PNP	30	0.125			EBC
2N3903	NPN	40	0.5	50		EBC
2N3904	NPN	40	0.2	100		EBC
2N3905	PNP	40	0.5	50		EBC
2N3906	PNP	40	0.125	10		EBC
2N4058	PNP	30	0.5	50		EBC
2N4123	NPN	40	0.2	40		EBC
2N4124	NPN	30	0.5	50		EBC
2N4125	PNP	30	0.5	50		EBC
2N4126	PNP	25	0.5	50		EBC
2N4264	NPN	30	0.2	100		EBC
2N4287	NPN	45	0.5	100		ECB
2N4289	PNP	45	0.5	150		ECB
2N4400	NPN	60	0.125			EBC

Important Notes and Observations:

· Device Types: The listed devices are primarily NPN and PNP transistors.
· Available Packages: Devices are available lead-formed and in Ammopack or Tape & Reel packaging options.
· Availability: The website address is `www.centralsemi.com` for further details.
· Missing Data: Many of the specifications are missing from the provided text. The table only lists parameters that are explicitly provided.
· Abbreviations: `Vceo` is the collector-emitter voltage, `Ic` is the collector current, `Ft` is the transition frequency and `Pd` is the Power dissipation.

To create a more detailed summary, I would need the complete catalog data. This excerpt only provides a limited subset.