![](http://datasheet.mmic.net.cn/200000/MQFL-28-15D-W-ES_datasheet_15084148/MQFL-28-15D-W-ES_15.png)
Product # MQFL-28-15D
Phone 1-888-567-9596
Doc.# 005-2MQ150D Rev. A
10/23/07
Page 15
T
Te
e
ec
c
ch
h
hn
n
niiiic
c
ca
a
allll S
S
Sp
p
pe
e
ec
c
ciiiiffffiiiic
c
ca
a
attttiiiio
o
on
n
Output:
Current:
±
±15 V
15 V
8 A Total
MQFL-28-15D
CONSTRUCTION AND ENVIRONMENTAL STRESS SCREENING OPTIONS
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.
QorSeal
Ruggedized
Construction
Process
Yes
*
2009
External Visual
Full QorSeal
Anodized Package
Mechanical Seal,
Thermal, and
Coating Process
+25oC
24 Hrs @ +125oC
No
Yes
C-Grade
(-40oC to +100oC)
* Per IPC-A-610 (Rev. D) Class 3
160 Hrs @ +125oC
96 Hrs @ +125oC
12 Hrs @ +100oC
Method 1015
Load Cycled
10s period
2s @ 100% Load
8s @ 0% Load
Burn-in
Condition A
(5000g)
500g
No
Method 2001
(Y1 Direction)
Constant
Acceleration
Condition C
(-65oC to +150oC)
Condition B
(-55oC to +125oC)
No
Method 1010
Temperature Cycle
Yes
*
Internal Visual
-55, +25, +125oC
-45, +25, +100oC
+25oC
Method 5005
(Group A)
Final Electrical Test
HB-Grade
(-55oC to +125oC)
(Element Evaluation)
ES-Grade
(-55oC to +125oC)
(Element Evaluation)
B-Grade
(-40oC to +85oC)
Consistent with
MIL-STD-883F
Screening
QorSeal
Ruggedized
Construction
Process
Yes
*
2009
External Visual
Full QorSeal
Anodized Package
Mechanical Seal,
Thermal, and
Coating Process
+25oC
24 Hrs @ +125oC
No
Yes
C-Grade
(-40oC to +100oC)
* Per IPC-A-610 (Rev. D) Class 3
160 Hrs @ +125oC
96 Hrs @ +125oC
12 Hrs @ +100oC
Method 1015
Load Cycled
10s period
2s @ 100% Load
8s @ 0% Load
Burn-in
Condition A
(5000g)
500g
No
Method 2001
(Y1 Direction)
Constant
Acceleration
Condition C
(-65oC to +150oC)
Condition B
(-55oC to +125oC)
No
Method 1010
Temperature Cycle
Yes
*
Internal Visual
-55, +25, +125oC
-45, +25, +100oC
+25oC
Method 5005
(Group A)
Final Electrical Test
HB-Grade
(-55oC to +125oC)
(Element Evaluation)
ES-Grade
(-55oC to +125oC)
(Element Evaluation)
B-Grade
(-40oC to +85oC)
Consistent with
MIL-STD-883F
Screening