2N4249: Difference between revisions

Latest revision as of 09:01, 8 January 2025

The Fairchild 2N4249 (S035928) (P/N 151-0342-00) is a Si PNP Si low-noise transistor

Package: TO-106

NSN: 5961-00-246-2427

Semiconductors Common Design Parts Catalog 1982 (pg 189) lists the specs: 60V, 0.1A, hFE minimum 100.

Instrument	Manufacturer	Class	Model	Description	Introduced
DC501	Tektronix	Plug-in	DC501	basic 100 MHz frequency counter	1972
DC502	Tektronix	Plug-in	DC502	550 MHz frequency counter	1972
DC503	Tektronix	Plug-in	DC503	100 MHz, 7-digit frequency counter	1972
DC503A	Tektronix	Plug-in	DC503A	125 MHz, 8-digit frequency counter	1981
DC504	Tektronix	Plug-in	DC504	80 MHz, 5-digit frequency counter	1975
DC504A	Tektronix	Plug-in	DC504A	100 MHz, 6-digit frequency counter	1984
DC505	Tektronix	Plug-in	DC505	225 MHz counter/timer	1974
DC505A	Tektronix	Plug-in	DC505A	225 MHz counter/timer	1976
DC508	Tektronix	Plug-in	DC508	1 GHz counter	1978
DC508A	Tektronix	Plug-in	DC508A	1.3 GHz counter	1980
DC509	Tektronix	Plug-in	DC509	135 MHz programmable frequency counter	1981
DC510	Tektronix	Plug-in	DC510	350 MHz frequency counter	1982

@@ Line 1: / Line 1: @@
 {{Discrete component
 |Manufacturer=Fairchild
-|Model=S035928
+|Model=2N4249 (S035928)
 |Part_nos=151-0342-00
-|Description=PNP Si small signal transistor.
+|Description=Si PNP Si low-noise transistor
 |Used_in=DC501;DC502;DC503;DC503A;DC504;DC504A;DC505;DC505A;DC508;DC508A;DC509;DC510;
 }}
@@ Line 11: / Line 11: @@
 NSN: 5961-00-246-2427
-RPR: [[Media:Tek RPR 151- Transistors.pdf|Tektronix RPR for 151- Transistors]] page 456
+RPR: [[Media:Tek RPR 151- Transistors.pdf|Tektronix RPR for 151- Transistors]], pg 456
-== Equivalents ==
+== Specs ==
-The [https://www.sphere.bc.ca/oldsite/test/tekequiv.html Sphere Tek cross-reference] indicates that 2N4249 is equivalent.
+[[Media:Semiconductors Common Design Parts Catalog 1982.pdf|Semiconductors Common Design Parts Catalog 1982]] (pg 189) lists the specs:
+V, 0.1A, hFE minimum 100.
-Additional searching on the internet for the NSN will lead to 2N4249 (same number as Sphere provides) as well as 2N4429 (note the similarity - likely a transposition). The latter is definitely incorrect, as that is an NPN RF power transistor and not in TO-106 package.
+== Used in ==
+{{Part usage}}
-== Specs ==
-Exact specs of the 151-0342-00 are unknown; the 2N4249 is 60V, 0.1A, hFE 100-300.
+[[Category:Transistors]]