MIL-PRF-19500P
APPENDIX A
l.
Interim (pre- and post-burn-in) electrical parameters.
m. Burn-in test condition and burn-in test circuit.
n.
Delta parameter measurements or provisions for percent defective allowed (PDA) including procedures for
traceability, where applicable.
o. Final electrical measurements.
p. Requirements for data recording and reporting, where applicable.
A.3.4.1 MIL-STD-750 details. In addition to the items as specified in A.3.4, the applicable details required by
MIL-STD-750 should be listed in the specification sheet.
A.3.5 Blocking. A term describing the state of a semiconductor device or junction which eventually prevents the
flow of current.
A.3.6 Breakdown voltage. The breakdown voltage is the maximum instantaneous voltage, including repetitive and
nonrepetitive transients, which can be applied across a junction in the reverse direction without an external means
(circuit) of limiting the current. It is also the instantaneous value of reverse voltage at which a transition commences
from a region of high small-signal impedance to a region of substantially lower small-signal impedance.
A.3.7 Case mount. A type of package (outline) which provides a method of readily attaching one surface of the
semiconductor device to a heat dissipater to achieve thermal management of the case temperature (example: TO-3,
DO-4).
A.3.8 Case temperature. Case temperature is that temperature measured at a specified point on the case of a
semiconductor device.
A.3.9 Cathode. The electrode to which the forward current flows within the device.
A.3.10 Characteristic. An inherent and measurable property of a device. Such a property may be electrical,
mechanical, thermal, hydraulic, electromagnetic, or nuclear, and can be expressed as a value for stated or
recognized conditions. A characteristic may also be a set of related values usually shown in graphical form.
A.3.11 Control plans. Control plans are written descriptions of the system for controlling parts and processes.
They are written by suppliers to address the importance characteristics and engineering requirements of the product.
Each part shall have a control plan, but in many cases "family " control plans can cover a number of part products
using a common process.
A.3.12 Constant current source. A current source shall be considered constant if halving the generator impedance
does not produce a change in the parameter being measured that is greater than the required precision of the
measurement.
A.3.13 Constant voltage source. A voltage source shall be considered constant if doubling the generator
impedance does not produce a change in the parameter being measured that is greater than the required precision of
the measurement.
A.3.14 Disc type. A type of package (outline) for very high power devices which provides two parallel surfaces for
mounting into a specialized heat dissipator capable of applying a specified compressive force to the device.
16
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business