PA0491NLT PULSE ELECTRONICS CORPORATION, PA0491NLT Datasheet - Page 2

• Manufacturer Part Number: PA0491NLT
• Description: XFRMR PLANAR 100W 8:2 140UH SMD
• Manufacturer: PULSE ELECTRONICS CORPORATION
• Series: Spyglassr
• Type: For DC/DC Convertersr

Specifications of PA0491NLT

• Applications: Forward, Push-Pull Converters
• Intended Chipset: LT1952
• Voltage - Primary: 36 ~ 72V
• Voltage - Isolation: 1500Vrms
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Footprint: 0.92" x 0.79" (23.4mm x 20.1mm)
• Height Above Board: 0.34" (8.6mm)
• Chipset Manufacturer: Linear Technology
• Inductance: 140µH
• Transformer Type: Isolation and Data Interface (Encapsulated)
• Turns Ratio - Primary:secondary: 8:2
• Primary Side Voltage: 48V
• Primary Configuration: Single
• Pin Count: 11
• Power Rating (w) Or (va): 100
• Secondary Side Current: 20000mA
• Secondary Configuration: Single
• Operating Temp Range: -40C to 125C
• Product Height (mm): 8.6mm
• Product Depth (mm): 23.37mm
• Product Length (mm): 20.07mm
• Turns Ratio: 8:2
• High Potential: 1500VDC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• E.t.: -
• Lead Free Status / Rohs Status: Compliant

HIGH FREQUENCY PLANAR
TRANSFORMERS
Spyglass Series (up to 140W)
Notes from Tables
1. The above transformers have been tested and approved by Pulse's IC
2. The listed transformers are designed to meet basic insulation (1.4mm
For More Information:
Pulse Worldwide
Headquarters
12220 World Trade Drive
San Diego, CA 92128
U.S.A.
www.pulseeng.com
TEL: [phone]
FAX: [phone]
Performance warranty of products offered on this data sheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product
names mentioned herein may be trademarks or registered trademarks of their respective owners.
© Copyright, 2006. Pulse Engineering, Inc. All rights reserved.
www.pulseeng.com
partners and are cited in the appropriate datasheet or evaluation board
documentation at these companies. To determine which IC and IC
companies are matched with the above transformers, please refer to
the IC cross reference on the Pulse web page. See the Spyglass
transfomer matrix on the next page for other winding configurations
that can be made available.
creepage and clearance with 1500Vdc isolation). Lower cost
transformers with operational insulation (1500Vdc isolation with no
creepage and clearance spacings) are available. Please contact Pulse
Power Applications Engineering for details.
Pulse
Northern Europe
3 Huxley Road
Surrey Research Park
Guildford, Surrey GU2 5RE
United Kingdom
TEL: [phone]
FAX: [phone]
D
Pulse
Southern Europe
Zone Industrielle
F-39270
Orgelet
France
TEL: [phone]
FAX: [phone]
Pulse
China Headquarters
No. 1
Industrial District
Changan, Dongguan
China
TEL: [phone]
FAX: [phone]
D
3. To determine if the transformer is suitable for your application,
4. Add suffix “T” to part number for Tape & Reel package (i.e. PA0168T).
5. RoHS compliant parts are being introduced. Please contact Pulse for
it is necessary to ensure that the temperature rise of the
component (ambieint plus temperature rise) does not exceed
its operating temperature. To determine the approximate temperature
rise of the transformer, refer to the graphs below.
RoHS compliant part availability. If available, order part by adding the
suffix "NL" to the part number (i.e. PA0168 becomes PA0168NL and
PA0168T becomes PA0168NLT).
Pulse North China
Room 1503
XinYin Building
No. 888 YiShan Road
Shanghai 200233
China
TEL: [phone]
FAX: [phone]
Pulse South Asia
150 Kampong Ampat
#07-01/02
KA Centre
Singapore 368324
TEL: [phone]
FAX: [phone]
Pulse North Asia
No. 26
Kao Ching Road
Yang Mei Chen
Taoyuan Hsien
Taiwan, R. O. C.
TEL: [phone]
FAX: [phone]
P576.A (5/06)