MIL-PRF-19500/355M
3. REQUIREMENTS
3.1 General. The individual item requirements shall be as specified in MIL-PRF-19500 and as modified herein.
3.2 Qualification. Devices furnished under this specification shall be products that are manufactured by a
manufacturer authorized by the qualifying activity for listing on the applicable qualified manufacturer's list (QML)
before contract award (see 4.2 and 6.3).
3.3 Abbreviations, symbols, and definitions. Abbreviations, symbols, and definitions used herein shall be as
specified in MIL-PRF-19500 and as follows:
hFE-1/hFE-2.............................................Static forward-current-gain-ratio. The matching ratio of the static forward-
current transfer ratio of each section.
RθJA .....................................................Thermal resistance junction to ambient.
RθJSP(IS)................................................Thermal resistance junction to solder pads (infinite sink mount to PCB).
|VBE1 - VBE2 |........................................Absolute value of base-emitter-voltage differential between the individual
sections.
|∆VBE1-2 (T1) - ∆VBE1-2 (T2)| ................Absolute value of the algebraic difference between the base-emitter-
voltage differentials between the individual sections at two different
temperatures.
3.4 Interface and physical dimensions. The interface and physical dimensions shall be as specified in
MIL-PRF-19500 and on figures 1, 2, 3, and 4.
3.4.1 Lead finish. Lead finish shall be solderable in accordance with MIL-PRF-19500, MIL-STD-750, and herein.
Where a choice of lead finish is desired, it shall be specified in the acquisition document (see 6.2).
3.5 Electrical performance characteristics. Unless otherwise specified herein, the electrical performance
characteristics are as specified in 1.3, 1.4, and 1.5.
3.6 Electrical test requirements. The electrical test requirements shall be as specified in table I.
3.7 Marking. Marking shall be in accordance with MIL-PRF-19500.
3.8 Workmanship. Semiconductor devices shall be processed in such a manner as to be uniform in quality and
shall be free from other defects that will affect life, serviceability, or appearance.
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are classified as follows:
a. Qualification inspection (see 4.2).
b. Screening (see 4.3).
c. Conformance inspection (see 4.4 and tables I and II).
7
RAYTHEON [ RAYTHEON COMPANY ]
