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QLS25ZE View Datasheet(PDF) - Power-One Inc.

Part NameQLS25ZE Power-One
Power-One Inc. Power-One
DescriptionDC-DC Series Data Sheet 25A Quarter-Brick

QLS25ZE Datasheet PDF : 8 Pages
1 2 3 4 5 6 7 8
Mechanical Drawing
QLS25 DC-DC Series Data Sheet
25A Quarter-Brick
Tolerances: .xx + .020 (.5)
.xxx + .010 (.25)
Pin Diameter + 0.002 (.05)
Ordering Information
Remote ON/OFF
Pin Length
Suffixes to add to part number
Positive- Standard, no suffix required
Negative- Add “N” suffix
Negative- No suffix required
Positive - Add “T” suffix
0.18”- Standard, no suffix required
0.11”- Add “8” suffix
0.15”- Add “9” suffix
1. Consult factory for the complete list of available options.
NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not designed, intended for use in, or authorized for use as critical
components in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written
consent of the respective divisional president of Power-One, Inc.
TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on
the date manufactured. Specifications are subject to change without notice.
SEP 12, 2003 revised to OCT 26, 2006
Page 8 of 8
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The QLS25 is a new series of cost-effective, high-density single output DC-DC converters providing onboard conversion of standard telecom and datacom input voltagesinto isolated low voltage outputs in a through-hole mounting package. High efficiencies and a patent-pending board design significantly improve thermal characteristics by evening out hot spots and enhance product reliability.

• RoHS lead solder exemption compliant
• Cost-effective single board design
• Low profile – 11 mm height
• Input/output isolation: 1500VDC, basic insulation
• High efficiency - up to 90% at full load
• Start-up into high capacitive load
• Low conducted and radiated EMI
• Output overcurrent protection
• Output overvoltage protection
• Back drive protection
• Overtemperature protection
• Remote sense
• Set point accuracy ±1%
• Remote on/off (primary referenced), positive or negative logic
• Output voltage trim adjust, positive or negative
• UL 1950 Recognition, CSA 22.2 No. 950-95 certification, TUV IEC950

• Distributed power architectures
• Telecommunications equipment
• LAN/WAN applications
• Data processing applications

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