Quiet-Power®
QPI-21
S
C
NRTL
US
Active EMI Input Module for 48 Vdc Bus
Product Description
Features
The QPI-21 active EMI filter attenuates conducted commonmode (CM) and differential-mode (DM) noise over the
CISPR22 frequency range of 150 kHz to 30 MHz. The product
is designed for use in 48 Vdc bus (36 – 76 Vdc) systems, with
100 Vdc surge capability. The QPI-21’s 14 A rating supports
multiple DC-DC converter loads up to an ambient
temperature of 65°C without de-rating. Designed for the
telecom and ITE bus range, the QPI-21 supports the PICMG®
3.0 specification for filtering system boards to the EN55022
Class B limits.
• 45 dB CM attenuation at 250 KHz (50 Ω)
In comparison to passive solutions, the use of active filtering
reduces component size and therefore reduces the overall
package size. The Picor QPI-21 smaller size saves valuable
board real estate and the reduced height enhances airflow.
The QPI-21 is available as a lidded or an open-frame SiP
(System-in-Package) module with LGA mounting. Evaluation
boards are available to allow for quick in-circuit testing of the
QPI-21LZ within an existing system design.
• 80 dB DM attenuation at 250 KHz (50 Ω)
• 80 Vdc (max input)
• 100 Vdc surge 100 ms
• 1,500 Vdc hipot hold off to shield plane
• 14 A rating
• 25.3 x 25.3 x 5.0 mm Lidded SiP (System-in-Package)
• 24.9 x 24.9 x 4.4 mm Open-frame SiP
• Low profile LGA package
• -40° to +125°C Ambient temperature (see Figure 14)
• Efficiency >99%
• Connect in series for higher attenuation
• Pads for additional X filtering capacitance
• cTÜVus approved to UL/CSA 60950-1 and EN 60950-1
• CE marked to the LVD and RoHS Recast Directive
as applicable
Applications
QuietPower
®
•
•
•
•
•
•
QPI-21LZ
U.S. PATENT NO. 6,898,092
Figure 1 — QPI-21LZ (~1 in2 area)
ATCA blades
Telecom base stations
IBA & distributed power
Network switches and routers
Optical line-cards
TD-SCMA wireless infrastructure
Typical Applications
CX1
XY+
BUS+
XY-
BUS+
QPI+
IN+
OUT+
CIN
CB1
SENSE+
PC
LOAD
SC
BUS-
PR
BUS-
QPI-
SENSE-
Shield
OUT-
IN-
CY1
Chassis/Shield
CY2
CY3
CY4
Shield Plane
Figure 2 — Typical QPI-21 circuit with a Vicor brick converter. Optional X (CX1) filter capacitor shown.[b]
[b]
CB1, CX1 capacitors, referenced in all schematics, are a 47uF electrolytic; United Chemi-Con EMVE101ARA470MKE0S or equivalent.
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QPI-21
Order Information
Part Number
QPI-21LZ[c]
QPI-21LZ-01
Part Number
QPI-21 LGA Package, RoHS Compliant
QPI-21 LGA Package, RoHS Compliant, open frame package
Evaluation Board Also Available
QPI-21-CB1
A QPI-21LZ mounted on a carrier board designed for use with DOSA compliant footprint dc-dc converters. Screw terminal blocks to
allow for easy connection into an existing system.
Absolute Maximum Ratings
Exceeding these parameters may result in permanent damage to the product. CY1 to CY4, referenced in all schematics, are 4.7nF hi-voltage safety capacitors;
Vishay VY1472M63Y5UQ63V0 or equivalent. CIN is the converter manufacturer’s recommended value for input capacitor.
Name
Rating
Input Voltage, BUS+ to BUS-, continuous
-80 to 80 Vdc
Input Voltage, BUS+ to BUS-, 100 ms transient
-100 to 100 Vdc
BUS+/ BUS- to Shield pads, hi-pot
-1500 to 1500 Vdc
Input to output current, continuous @ 25°C TA
14 Adc
Input to output current, 10 seconds @ 25°C TA
20 Adc
Power dissipation, @ 65°C TA, 14 A[d]
2.9 W
Operating temperature - TA
-40 to 125°C
Thermal
resistance[d]
- RθJ-A, using PCB layout in Figure 24
20°C/W
Thermal
resistance[d]
- RθJ-PCB
8°C/W
Storage temperature, JEDEC Standard J-STD-033B
-55 to 125°C
Reflow temperature, 20 s exposure
245°C
ESD, Human body model (HBM)
-2000 to 2000 V
Electrical Characteristics
Parameter limits apply over the operating temp. range, unless otherwise noted.
Parameter
Conditions
Max
Unit
BUS+ to BUS- input range
Measured at 14 A, 65°C ambient temperature[d]
80
Vdc
BUS+ to QPI+ voltage drop
Measured at 14 A, 65°C ambient temperature[d]
156
mVdc
BUS- to QPI- voltage drop
Measured at 14 A, 65°C ambient temperature[d]
50
mVdc
Common mode attenuation
VBUS = 48 V, Frequency = 250 KHz, line impedance = 50 Ω
45
dB
Differential mode attenuation
VBUS = 48 V, Frequency = 250 KHz, line impedance = 50 Ω
80
dB
Input bias current at 80 V
Input current from BUS+ to BUS-
8
mA
[c]
[d]
Min
Typ
30
QPI-21LZ is a non-hermetically sealed package. Please read the “Post Solder Cleaning” section on Page 14.
See Figure 14 for the current de-rating curve.
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QPI-21
Pad Descriptions
Pin Name
Name
Description
12, 13, 14
BUS+
Positive bus potential
1, 5, 16
BUS-
Negative bus potential
7, 8, 9
QPI+
Positive input to the converter
4, 5, 6
QPI-
Negative input to the converter
2, 3
Shield
10
XY-
Negative rail node for additional X filtering capacitance. Adding Y capacitors from this pin to ground
is not recommended.
11
XY+
Positive rail node for additional X capacitance. Adding Y capacitors from this pin to ground is not
recommended.
Shield connects to the system chassis or to a safety ground.
12
XY+
XY-
11
10
9
8
13
BUS+
QPI+
14
7
15
6
BUS-
QPI5
16
1
2
3
4
Shield
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QPI-21
Active EMI Filtering
Applications Information
EMI Sources
Many of the components in today’s power conversion modules are
sources of high-frequency EMI noise generation. Diodes, highfrequency switching devices, transformers and inductors, and circuit
layouts passing high dv/dt or di/dt signals are all potential sources
of EMI.
The QPI-21 active EMI filter uses the same basic principles for
filtering as the passive approach, but its active common-mode filter
can perform as well as a passive filter, when filtering lower
frequencies, in much less board area and power dissipation.
CM w/Aux Winding
EMI is propagated either by radiated or conductive means. Radiated
EMI can be sourced from these components as well as by circuit
loops that act like antennas and broadcast the noise signals to
neighboring circuit paths. This also means that these loops can act as
receivers of a broadcasted signal. This radiated EMI noise can be
reduced by proper circuit layout and by shielding potential sources
of EMI transmission.
LDM
CDM
Y Caps
There are two basic forms of conducted EMI that typically need to be
filtered; namely common-mode (CM) and differential-mode (DM)
EMI. Differential-mode resides in the normal power loop of a power
source and its load; where the signal travels from the source to the
load and then returns to the source. Common-mode is a signal that
travels through both leads of the source and is returned to earth via
parasitic pathways, either capacitively or inductively coupled.
Active CM Filter
Figure 6 to Figure 9 are the resulting EMI plots, after filtering by the
QPI-21, of the total noise, both common and differential mode, of a
DOSA (Distributed-power Open Standards Alliance) compliant
converter. These converters are mounted on a QPI-21 evaluation
board and tested under various loads. The red and blue traces
represent the positive and negative branches of total noise, as
measured using an industry standard LISN setup, as is shown in
Figures 11 to 13.
Typically, the lower the frequency the greater the needed inductance
would be to properly filter the EMI signal. This means either a larger
core or a greater number of turns on a smaller core. A larger core
requires more board space, where a smaller core with more turns has
a greater amount of unwanted parasitics that can affect the filters
ability to attenuate EMI signals.
Differential-mode EMI is typically larger in magnitude than
common-mode, since common-mode is produced by the physical
imbalances in the differential loop path. Reducing differential EMI
will cause a reduction in common-mode EMI.
Figure 3 is a simplified schematic of the QPI-21’s active and passive
circuitry used for EMI filtering. The QPI-21’s active filter uses a small
high-frequency common-mode transformer to filter the higher
frequencies and adds a sensing element to
Passive EMI Filtering
The basic premise of filtering EMI is to insert a high-impedance, at
the EMI’s base frequency, in both the differential and common-mode
paths as it returns to the power source. Passive filters use commonmode chokes and “Y” capacitors to filter out common-mode EMI.
These chokes are designed to present a high-impedance at the EMI
frequency in series with the return path, and a low impedance path
to the earth signal via the “Y” caps. This network will force the EMI
signals to re-circulate within a confined area and not to propagate to
the outside world. Often two common-mode networks are required
to filter EMI within the frequency span required to pass the
EN55022 class B limits.
Figure 3 — Simplified Active EMI filter circuit
it so that the lower frequency common mode signal can be sensed
and a correction signal can be generated and inserted into the shield
connection. By this means, the QPI-21 is capable of providing EMI
filtering of converters in far less space than standard passive filters
and can provide filtering over the entire EN55022 class B range.
EMI Management
The more effectively EMI is managed at the source, namely the
power converter, the less EMI attenuation will be required to meet a
given standard. The addition of “Y” capacitors to the input and
output power nodes of the converter will help to limit the amount of
common mode EMI that will propagate to the input source.
The other component of the passive filter is the differential LC
network. Again, the inductor is chosen such that it will present a
high-impedance in the differential EMI loop at the EMI’s base
frequency. The differential capacitor will then shunt the EMI back to
its source. The QPI-21 was specifically designed to work with
conventional switching frequency converters like Vicor’s Brick
products; Micro, Mini and Maxi modules; as well as converters from
various vendors.
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QPI-21
profile can vary with one topology versus another. The EMI
generated by the “base-plate” configuration is much greater than that
generated by the “open-frame” in this example. Selecting the right
topology will greatly reduce the amount of EMI signal that needs to
be filtered.
Figure 2 shows the base-plate topology of re-circulating “Y”
capacitors. Here, CY1 to CY4 are connected to each power node of
the dc-dc converter, and then are connected together on a copper
shield plane created under the converter. The addition of the copper
shield plane helps in the containment of the radiated EMI,
converting it back to conducted EMI and shunting it back to
its source.
In Figure 5, the open-frame topology is shown where the “Y”
capacitors (CY1 and CY2) re-circulate the EMI signals between the
positive input and output, and the negative input and output nodes
of the power conversion stage. Safety and system requirements may
dictate that some converters must have the output return (-) directly
connected to earth ground. This connection can impact performance
of some filter solutions, where the QPI-21 works well in this
configuration.
Figure 4 — An unfiltered converter’s response to “open-frame”
(light blue) and “base-plate” (purple) EMI configurations
There are two basic topologies for the connection of the recirculating “Y” capacitors, referred to as “open-frame” and “baseplate”. Figure 4 illustrates how a converters total conducted noise
C Y2
XY+
XY-
BUS+
BUS+
QPI+
IN+
+
+
CB1
CIN
OUT+
SENSE+
PC
SC
BUSBUS-
QPI-
PR
Shield
SENSEIN-
Chassis/Shield
Optional Chassis Connection
OUT-
C Y1
Figure 5 — Typical “open-frame" application with an optional connection of the chassis to OUT- of the converter
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LOAD
QPI-21
Attenuation Plots — All converters have their output ground connected to chassis/earth ground.
Figure 6 — Ericsson PKM 4402NG using open-frame “Y” capacitors on
QPI-21-CB1 evaluation board, 414 W load
Figure 7 — Ericsson PKM 4402NG using open-frame “Y” capacitors on
QPI-21-CB1 evaluation board, 414 W load, converter’s output
ground connected to earth
Figure 8 — Ericsson PKM4304B PI using base-plate “Y” capacitors
with a 360 W load
Figure 9 — Ericsson PKM4304B PI using base-plate “Y” capacitors
with a 360 W load, CX1 = 47uF (see Figure 2).
The EMI results shown in Figures 6 and 7 are of the total noise
measured using the QPI-21 in an "open-frame" topology, as shown
in Figure 5, with and without the converter's ground tied to
chassis/earth.
The EMI results shown in Figures 8 and 9 are of the total noise
measured using the QPI-21 in an "base-plate" topology, as shown in
Figure 2, with and without the optional CX1 capacitor in use.
Using EMI splitters, the peak EMI at the fundamental switching
frequency was determined to be mostly differential mode current.
The addition of a 47 μF capacitor reduced the total peak by about
6dBuV, as shown in Figure 10.
Figure 10 — CM Peak Measurements with a 10 µF and 47 µF
CX1 capacitor
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QPI-21
Attenuation Test Setups
Shielded Box
QPI CB1 Board
CY5
~1.25m
BUS+
QPI+
VIN+
VOUT+
LISN
C1
BUS
SUPPLY
C2
CONVERTER
QPI
47uF
100uF
SHIELD
BUSLISN
QPI-
VIN-
VOUT-
PCB Plane Under Converter
CY6
Optional Chassis Connection
Shield Plane (Earth Ground)
Figure 11 — Open-frame EMI test setup using the QPI-21-CB1 carrier board with 48V converter
Shielded Box
QPI CB1 Board
~1.25m
PCB Plane Under Converter
BUS+
QPI+
VIN+
VOUT+
LISN
C1
BUS
SUPPLY
C2
QPI
CONVERTER
100uF
47uF
SHIELD
BUSLISN
QPI-
VINCY1
Shield Plane (Earth Ground)
Figure 12 — Base-plate EMI test setup using the QPI-21-CB1 carrier board with 48V converter
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CY2
VOUTCY3
CY4
QPI-21
Attenuation Test Setups
Shielded Box
QPI CB1 Board
~1.25m
PCB Plane Under Converter
BUS+
QPI+
VIN+
VOUT+
LISN
C1
BUS
SUPPLY
C2
CONVERTER
QPI
47uF
100uF
SHIELD
BUSLISN
QPI-
VINCY1
VOUTCY3
CY2
Shield Plane (Earth Ground)
Figure 13 — Base-plate EMI test setup using the QPI-21-CB1 carrier board with 48 V converter
capacitors are high-voltage, 4.7 nF ceramics (Murata’s
GRM31BR73A472KW01L or equivalent).
In Figures 11, 12 and 13, C1 is the required 47 uF capacitor (United
Chemi-Con EMVE101ARA470MKE0S or equivalent), C2 is a
converter input cap (value dependent on converter), and the CY
16
4.0
14
3.5
12
3.0
10
2.5
8
2.0
6
1.5
4
1.0
2
0.5
Maximum Power Dissipation (Watts)
Maximum Current (Amps)
Current De-Rating — Mounted to QPI-21-EVAL1 evaluation board.
0.0
0
-40
-15
10
35
60
110
Ambient Temperature (°C)
QPI-21 Power Dissipation
QPI-21 Current
85
Figure 14 — Current de-rating and power dissipation over ambient temperature range
The de-rating curve in Figure 14 is based on the maximum allowable
internal component temperature and the 14 A maximum rating of
the QPI-21. The power dissipation curve is based on the current
squared multiplied by the internal resistance between the inputs and
outputs of the filter. The internal resistance temperature coefficient is
compensated for in the power dissipation curve. The left Y axis is in
amps for the solid trace, the right Y axis is in watts for the
dashed trace.
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QPI-21
QPI Application Circuits — Filtering Dual Converters.
BUS+
BUS+
+
CIN 1
QPI+
IN+
+
QPI-21
CB1
OUT+
SENSE+
LOAD 1
PC
SC
BUSBUS-
PR
QPIShield
SENSEINCY1
OUT-
CY2
CY3
CY4
Shield Plane
Chassis/Shield
CIN 2
IN+
OUT+
SENSE+
+
LOAD 2
PC
SC
PR
SENSEOUT-
INCY5
CY6
CY7
CY8
Shield Plane
Figure 15 — The QPI-21 filtering dual supplies.[e]
The shield plane under the two converters in Figure 15 should be
one contiguous plane under both. The circuit in Figure 15 is capable
of filtering more converters than shown, up to the maximum current
limit of the QPI-21. In Figure 16, the QPI+ and QPI- outputs of each
filter should not be connected in parallel. The QPI-21 is not designed
to be used in parallel with another QPI-21 to achieve a higher
current rating, but it can be used multiple times within a
system design.
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QPI-21
QPI Application Circuits — Filtering Parallel Converters
XY+
XY-
BUS+
BUS+
+
QPI+
+
QPI-21
47 µF
IN+
CIN
OUT+
SENSE+
LOAD
PC
SC
BUS-
PR
QPIShield
BUS-
SENSEIN-
OUT-
C Y2
Chassis/Shield
C Y3
XY+
XY-
BUS+
QPI+
IN+
+
+
QPI-21
47 µF
CIN
OUT+
SENSE+
PC
SC
BUS-
QPI-
PR
Shield
SENSEIN-
OUT-
C Y4
Figure 16 — Dual QPI-21’s filtering paralleled converters feeding a common load.[e]
[e]
CIN1 and CIN2, CY1 through CY8, should be the value and voltage rating recommended by the converter’s manufacturer.
QPI Insertion Loss Measurements
QPI Insertion Loss Equation
90
Insertion Loss = 20 log
Attenuation (dB)
80
70
60
50
40
30
20
10
0
0.01
0.1
Common Mode
1
10
Differential Mode
Frequency (MHz)
Figure 17 — Attenuation curves into a 50Ω line impedance,
bias from a 48 V bus
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( )
IINA
IINB
QPI-21
QPI Insertion Loss Test Circuits
IP RO BE
IN
BU S
V BU S
C hassis
BUS+
QPI+
47uF
LISN
LO A D
QPI-21
SIG
BUS-
C S IG
INA
INB
QPI-
SIG
50 Ω
Shield
IN
BU S
LISN
C hassis
IP RO BE
SIG
Figure 18 — Test Set-up to measure Differential Mode EMI currents in Figure 17.
IN
BU S
V BU S
C hassis
BUS+
QPI+
47uF
LISN
IP RO BE
LO A D
QPI-21
SIG
BUS-
QPI-
INA
C S IG
INB
Shield
BU S
IN
SIG
LISN
C hassis
50 Ω
IP RO BE
SIG
Figure 19 — Test Set-up to measure Common Mode EMI currents in Figure 17.
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QPI-21
Mechanicals
0.006" [0.15mm] max.
QPI-21LZ
0.998" [25.35 mm]
U.S. and Foreign Patents/Patents Pending
Lot #
Date Code
Pin 1 indicator
0.206" [5.23 mm]
0.998" [25.35 mm]
Figure 20 — Lidded Package Dimensions, tolerance of ±0.004”
0.006" [0.15mm] max.
21LZ-01
0.979" [24.867 mm]
π
Pin 1
0.174 [4.420 mm]
0.979" [24.867 mm]
Figure 21 — Open-frame Package dimensions, tolerance of ±0.004”. Pick and Place from label center.
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QPI-21
Pad and Stencil Definitions
QPI-21 LGA
Paern
(Boom View)
QPI-21 PCB
Receptor Paern
(Top View)
0.996" (LID)
0.979" (OF)
0.441"
0.441"
0.300"
0.300"
0.100"
0.441"
0.441"
0.441"
0.300"
0.100"
0.441"
0.000"
0.441"
0.100"
0.300"
0.300"
0.300"
0.441"
0.100"
0.300"
0.000"
0.100"
0.100"
0.996" (LID)
0.000"
0.979" (OF)
0.100"
0.000"
0.300"
0.100"
Figure 22 — Bottom view of open-frame (OF) and lidded (LID) products. (All dimensions are in inches.)
45.000°
0.145
0.082
0.041
0.000
0.149
0.085
0.043
0.000
0.129
0.073
0.037
0.000
1 place
0.082
0.041
0.000
0.086
0.043
0.000
0.073
0.037
0.000
13 places
0.073
0.037
0.000
2 places
R0.041
R0.043
R0.037
0.086
0.043
0.000
0.082
0.041
0.000
0.1250"
SIP Pad Detail:
0.129"
0.112"
Receiving Pad Detail:
Stencil Detail:
Figure 23 — Recommended receptor and stencil patterns. (All dimensions are in inches.)
Stencil definition is based on a 6mil stencil thickness, 80% of LGA
pad area coverage. LGA Package dimensions are for both the
Open-Frame and Lidded versions of the QPI-21.
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QPI-21
QPI-21 PCB Layout Recommendations
Figure 24 — 3D view of paralleling planes underneath the QPI-21
PCB Layout
Post Solder Cleaning
When laying out the QPI-21 EMI filter it is important for the designer
to be aware of the radiated EMI field that all converters emit and to
place the QPI-21 outside of this field area. It is also recommended
that the bus lines feeding into the QPI filter are not routed such that
they lie between the QPI and the converter, or that their copper
planes over-lap on inner layers. This can cause EMI noise to be
coupled from input to output via the parasitic capacitance between
the planes.
The LZ version QP SIPs are not hermetically sealed and must not be
exposed to liquid, including but not limited to cleaning solvents,
aqueous washing solutions or pressurized sprays. When soldering, it
is recommended that no-clean flux solder be used, as this will ensure
that potentially corrosive mobile ions will not remain on, around, or
under the module following the soldering process. For applications
where the end product must be cleaned in a liquid solvent, Picor
recommends using the QPI-21LZ-01, open-frame version of the
EMI filter.
When using converters that have a large field of radiated EMI
surrounding them, the QPI-21 must be located outside of this area of
radiation, with the BUS voltage pins located on the side farthest away
from the converter. This is to keep the radiated EMI from by-passing
the filter and coupling directly to the BUS feeds.
QPI-21 Mechanical Data
Datum
Units
QPI-21LZ
QPI-21LZ-01
Notes
FITS
Failure/Billion Hrs.
208
208
FITS based on the BellCore Standard TR-332
MTBF
Million Hrs.
4.8
4.8
MTBFs based on the BellCore Standard TR-332
Weight
grams
6.5
5.2
3
3
245
245
MSL
Peak reflow Temperature
°C/20 seconds
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IPC/JEDEC J-STD-020D
QPI-21
Vicor’s comprehensive line of power solutions includes high density AC-DC and DC-DC modules and
accessory components, fully configurable AC-DC and DC-DC power supplies, and complete custom
power systems.
Information furnished by Vicor is believed to be accurate and reliable. However, no responsibility is assumed by Vicor for its use. Vicor makes no
representations or warranties with respect to the accuracy or completeness of the contents of this publication. Vicor reserves the right to make
changes to any products, specifications, and product descriptions at any time without notice. Information published by Vicor has been checked and
is believed to be accurate at the time it was printed; however, Vicor assumes no responsibility for inaccuracies. Testing and other quality controls are
used to the extent Vicor deems necessary to support Vicor’s product warranty. Except where mandated by government requirements, testing of all
parameters of each product is not necessarily performed.
Specifications are subject to change without notice.
Vicor’s Standard Terms and Conditions
All sales are subject to Vicor’s Standard Terms and Conditions of Sale, which are available on Vicor’s website or upon request.
Product Warranty
In Vicor’s standard terms and conditions of sale, Vicor warrants that its products are free from non-conformity to its Standard Specifications (the
“Express Limited Warranty”). This warranty is extended only to the original Buyer for the period expiring two (2) years after the date of shipment
and is not transferable.
UNLESS OTHERWISE EXPRESSLY STATED IN A WRITTEN SALES AGREEMENT SIGNED BY A DULY AUTHORIZED VICOR SIGNATORY, VICOR DISCLAIMS
ALL REPRESENTATIONS, LIABILITIES, AND WARRANTIES OF ANY KIND (WHETHER ARISING BY IMPLICATION OR BY OPERATION OF LAW) WITH
RESPECT TO THE PRODUCTS, INCLUDING, WITHOUT LIMITATION, ANY WARRANTIES OR REPRESENTATIONS AS TO MERCHANTABILITY, FITNESS FOR
PARTICULAR PURPOSE, INFRINGEMENT OF ANY PATENT, COPYRIGHT, OR OTHER INTELLECTUAL PROPERTY RIGHT, OR ANY OTHER MATTER.
This warranty does not extend to products subjected to misuse, accident, or improper application, maintenance, or storage. Vicor shall not be liable
for collateral or consequential damage. Vicor disclaims any and all liability arising out of the application or use of any product or circuit and assumes
no liability for applications assistance or buyer product design. Buyers are responsible for their products and applications using Vicor products and
components. Prior to using or distributing any products that include Vicor components, buyers should provide adequate design, testing and
operating safeguards.
Vicor will repair or replace defective products in accordance with its own best judgment. For service under this warranty, the buyer must contact
Vicor to obtain a Return Material Authorization (RMA) number and shipping instructions. Products returned without prior authorization will be
returned to the buyer. The buyer will pay all charges incurred in returning the product to the factory. Vicor will pay all reshipment charges if the
product was defective within the terms of this warranty.
Life Support Policy
VICOR’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS
PRIOR WRITTEN APPROVAL OF THE CHIEF EXECUTIVE OFFICER AND GENERAL COUNSEL OF VICOR CORPORATION. As used herein, life support
devices or systems are devices which (a) are intended for surgical implant into the body, or (b) support or sustain life and whose failure to perform
when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in a significant injury to the
user. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or system or to affect its safety or effectiveness. Per Vicor Terms and Conditions of Sale, the user of Vicor products
and components in life support applications assumes all risks of such use and indemnifies Vicor against all liability and damages.
Intellectual Property Notice
Vicor and its subsidiaries own Intellectual Property (including issued U.S. and Foreign Patents and pending patent applications) relating to the
products described in this data sheet. No license, whether express, implied, or arising by estoppel or otherwise, to any intellectual property rights is
granted by this document. Interested parties should contact Vicor's Intellectual Property Department.
The products described on this data sheet are protected by the following U.S. Patents Number:
6,898,092
Vicor Corporation
25 Frontage Road
Andover, MA 01810 USA
Picor Corporation
51 Industrial Drive
North Smithfield, RI 02896 USA
email
Customer Service: custserv@vicorpower.com
Technical Support: apps@vicorpower.com
Quiet-Power®
Rev 1.5
vicorpower.com
Page 15 of 15
08/2015
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