First-Ever Power Conversion Standard IPC-9592 Gets Update
June 10 , 2010
DBANNOCKBURN, Ill., USA —
IPC — Association Connecting
has released the A revision of IPC-9592, Requirements
for Power Conversion Devices for the Computer and Telecommunications Industries.
First released in 2008, IPC-9592 sets the requirements for power conversion devices
(PCDs) in the computer and telecommunications industries, including design for
reliability, design qualification testing, manufacturing conformance testing and
quality processes. The new A revision of the document provides suppliers and
end-users of PCDs with expanded guidance for design qualification testing and new
coverage of moisture sensitivity levels (MSLs) and corrosion of PCDs.
“As an original equipment manufacturer, my company can use the new A
revision of IPC-9592 to clearly specify our requirements in the areas of
testing and reliability that would weed out any proposals falling short
of delivering high quality and reliability to our customers as promised,”
says Neil Witkowski, reliability manager for Alcatel-Lucent, and chairman
of the IPC Power Conversion Devices Standard Subcommittee that developed
Specifically, revision A provides more definitive preconditioning tests
for Category 2 printed board surface mount PCD modules with dc-to-dc
converters. These tests also simulate stresses encountered during the
solder reflow assembly process. Preconditioning tests help predict the
results that occur with longer duration environmental stress tests, such
as high temperature operating bias as well as power and temperature cycling.
IPC-9592A also significantly extends its coverage of corrosion of PCDs,
providing guidance for various industrial, manufacturing and uncontrolled
external environments where gas phase, acidic entrainments in the air
can quickly ruin any PCD.
Finally, revision A significantly expands its description of highly
accelerated life testing (HALT) and the application of HALT to PCDs.
“Implemented as a design test to improve the robustness of a product
through a test-fail-fix process, HALT guidance provides my team with
clearly defined targets,” says Jerry Strunk, technical manager of
qualification & compliance with Lineage Power Corporation.
“Incorporating IPC-9592A HALT requirements into our product development
process provides OEM customers additional confidence in the reliability
of our products.”
Strunk is also the vice chairman of the IPC Power Conversion Devices
Standard Subcommittee which comprises representatives from leading
original equipment manufacturers (OEMs) and power conversion equipment
suppliers, including Alcatel-Lucent; Astec Power; Cisco Systems Inc.;
Dell Inc.; Dli Labs; Ericsson Power Module AB; Hewlett-Packard Co.;
IBM Corp.; Lineage Power Corp.; Lite-On Technology;
Lite-On Trading USA, Inc.; Murata Power Solutions; Power-One;
SolarBridge Technologies; and TDK-Lambda UK Ltd.
IPC member companies may request a free copy of IPC-9592A within 90 days
of its publication. Following the introduction period, members may
purchase a copy for $40. Nonmembers may purchase the new standard for
$80. For more information on IPC-9592,visit
or the IPC online bookstore at
) is a global trade association based in Bannockburn, Ill., dedicated to
the competitive excellence and financial success of its 2,700 member
companies which represent all facets of the electronics industry,
including design, printed board manufacturing, electronics assembly and
test. As a member-driven organization and leading source for industry
standards, training, market research and public policy advocacy, IPC
supports programs to meet the needs of an estimated $1.7 trillion global
electronics industry. IPC maintains additional offices in Taos, N.M.;
Arlington, Va.; Garden Grove, Calif.; Stockholm, Sweden; Moscow, Russia;
and Shanghai and Shenzhen, China.
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