MQME-28-P
Current:
20 A
Technical Specification
CONSTRUCTION AND ENVIRONMENTAL STRESS SCREENING OPTIONS
B-Grade
(-40
o
C
to
+85
o
C)
Screening
Internal Visual
Temperature Cycle
Constant
Acceleration
Consistent with
MIL-STD-883F
C-Grade
(-40
o
C
to
+100
o
C)
ES-Grade
(-55
o
C
to
+125
o
C)
(Element Evaluation)
HB-Grade
(-55
o
C to +125
o
C)
(Element Evaluation)
*
Method 1010
Method 2001
(Y1 Direction)
Method 1015
Load Cycled
Yes
No
Yes
No
Yes
Condition B
(-55
o
C to +125
o
C)
500g
Yes
Condition C
(-65
o
C to +150
o
C)
Condition A
(5000g)
No
No
Burn-in
•28V
input
•10s
period
•2s
@ Iout=6A
•8s
@ Iout=0A
12 Hrs @ +100
o
C
24 Hrs @ +125
o
C
96 Hrs @ +125
o
C
160 Hrs @ +125
o
C
Final Electrical Test
Mechanical Seal,
Thermal, and
Coating Process
External Visual
Construction
Process
Method 5005
(Group A)
+25
o
C
+25
o
C
-45, +25, +100
o
C
-55, +25, +125
o
C
Anodized Package
Full QorSeal
Full QorSeal
Full QorSeal
2009
*
Ruggedized
*
QorSeal
Yes
QorSeal
Yes
QorSeal
* Per IPC-A-610 (Rev. D) Class 3
MilQor converters and filters are offered in four variations of construction technique and environmental stress screening options. The
three highest grades, C, ES, and HB, all use SynQor’s proprietary QorSeal™ Hi-Rel assembly process that includes a Parylene-C coat-
ing of the circuit, a high performance thermal compound filler, and a nickel barrier gold plated aluminum case. The B-grade version
uses a ruggedized assembly process that includes a medium performance thermal compound filler and a black anodized aluminum
case
†
. Each successively higher grade has more stringent mechanical and electrical testing, as well as a longer burn-in cycle. The ES-
and HB-Grades are also constructed of components that have been procured through an element evaluation process that pre-qualifies
each new batch of devices.
† Note: Since the surface of the black anodized case is not guaranteed to be electrically conductive, a star washer or similar device
should be used to cut through the surface oxide if electrical connection to the case is desired.
Product # MQME-28-P
Phone 1-888-567-9596
Doc.# 005-2ME028P Rev. A
5/1/08
Page 10
SYNQOR [ SYNQOR WORLDWIDE HEADQUARTERS ]
