Product # MQME-28-P

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-2ME028P Rev. A

5/1/08

Page 10

Current:

20 A

MQME-28-P

MQME-28-P

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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

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

QorSeal

QorSeal

Ruggedized

Construction

Process

Yes

Yes

*

*

2009

External Visual

Full QorSeal

Full QorSeal

Full QorSeal

Anodized Package

Mechanical Seal,

Thermal, and

Coating Process

No

No

Yes

C-Grade

* Per IPC-A-610 (Rev. D) Class 3

Method 1015

Load Cycled

•28V input

•10s period

•2s @ Iout=6A

•8s @ Iout=0A

Burn-in

Condition A

(5000g)

500g

No

Method 2001

(Y1 Direction)

Constant

Acceleration

Condition C

Condition B

No

Method 1010

Temperature Cycle

Yes

Yes

Yes

*

Internal Visual

Method 5005

(Group A)

Final Electrical Test

HB-Grade

(Element Evaluation)

ES-Grade

(Element Evaluation)

B-Grade

Consistent with

MIL-STD-883F

Screening

QorSeal

QorSeal

QorSeal

Ruggedized

Construction

Process

Yes

Yes

*

*

2009

External Visual

Full QorSeal

Full QorSeal

Full QorSeal

Anodized Package

Mechanical Seal,

Thermal, and

Coating Process

No

No

Yes

C-Grade

* Per IPC-A-610 (Rev. D) Class 3

Method 1015

Load Cycled

•28V input

•10s period

•2s @ Iout=6A

•8s @ Iout=0A

Burn-in

Condition A

(5000g)

500g

No

Method 2001

(Y1 Direction)

Constant

Acceleration

Condition C

Condition B

No

Method 1010

Temperature Cycle

Yes

Yes

Yes

*

Internal Visual

Method 5005

(Group A)

Final Electrical Test

HB-Grade

(Element Evaluation)

ES-Grade

(Element Evaluation)

B-Grade

Consistent with

MIL-STD-883F

Screening