5961-00-913-3109 (1850-0199)
NSN 5961-00-913-3109 (NIIN 00-913-3109) is a transistor in Federal Supply Class 5961, Semiconductor Devices And Associated Hardware — an active semiconductor device with three or more electrodes. Manufacturer part number 1850-0199 (Hewlett-Packard Company, CAGE 28480); also referenced as 2N1639, RELEASE4224 (Electronic Industries Association).
Key specs: hermetically sealed case; 10 mA maximum collector current, DC current; full characteristics table below. NIIN assigned January 1960; DEMIL A (none required); export Schedule B 8541.50.0080. Related NSN 5961-00-702-7067.