MIL-PRF-19500/317

Transistor, NPN, Silicon, Switching, Encapsulated (Through-Hole and Surface Mount), and Unencapsulated, Radiation Hardness Assurance, Types 2N2369A, 2N3227, 2N4449, Quality Levels JAN, JANTX, JANTXV, JANS, JANHC, JANKC

Designation	MIL-PRF-19500/317
Status	Active
Last Update	2026-04-22
Last Document Update	2026-04-17
Publisher	Defense Standardization Program Office

Version	Date	Distribution Statement	Access	Pages
Revision T Amendment 5 (all previous amendments incorporated)	2026-04-17	A	Public	43
Revision T Amendment 4 (all previous amendments incorporated)	2025-05-09	A	Public	43
Revision T Amendment 3 (all previous amendments incorporated)	2023-07-21	A	Public	41
Revision T Amendment 2 (all previous amendments incorporated)	2022-05-30	A	Public	41
Revision T Amendment 1 (amendment incorporated)	2021-02-10	A	Public	39
Revision T	2015-08-30	A	Public	36
Revision R	2014-01-27	A	Public	33
Revision P	2013-01-28	A	Public	33
Revision N	2010-12-27	A	Public	33
Revision M	2008-06-19	A	Public	31
Revision L	2005-11-18	A	Public	22
Revision K	2004-10-28	A	Public	22
Revision J Amendment 1	2001-10-18	A	Public	2
Revision J	2001-03-09	A	Public	20
Revision H	2000-09-08	A	Public	20
Revision G	1999-09-27	A	Public	17
Revision F Amendment 1	1994-12-16	A	Public	1
Revision F	1993-12-16	A	Public	12

Service	Organization	Code
Lead Standardization Activity	DLA Land and Maritime	CC
Preparing Activity	DLA Land and Maritime	CC
Air Force	Air Force Life Cycle Management Center - Electronic Components, Wire and Cable	85
Army	US Army Combat Capabilities Development Command, C5ISR Center	CR
DLA	DLA Land and Maritime	CC
Navy	Naval Sea Systems Command (Ship Systems)	SH