USA 858 674 8100 • Germany 49 7032 7806 0 • Singapore 65 6287 8998 • Shanghai 86 21 32181071 • China 86 755 33966678 • Taiwan 886 3 4643715
www.pulseelectronics.com 1 P690.B (1/11)
Pulse Jack
E l e c t r o n i c s
HIGH FREQUENCY
WIRE WOUND
TRANSFORMERS
EE13 Platforms - THT TYPE
AC/DC and DC/DC Switching Transformers
Reinforced Insulation
3000Vrms Hi-Pot
Topology: Flyback
Custom Design Available
Electrical Specifications @ 25°C — Operating Temperature -40°C to 130°C 1
PA2718NL
Pri. Inductance (5 - 1) 1.74 mH
±
10%
Lk. Inductance
w/
(5 - 1)
(7-8)
98 µH MAX
shorted
DCR (5-1)
(7-8)
Hi-Pot Pri-Sec 3000 Vrms
K1 Factor 7505
CM - FLYBACK TRANSFORMER
5200
24 m
Ω
Max
1
NC
INPUT: 85 - 265vac
FRE:132Khz
SHIELD
SHIELD
5
1
NC
1
1. The temperature of the component (ambient plus temperature rise) must be
within the stated operating temperature range.
2. For flyback topology applications, it is necessary to ensure that the trans-
former will not saturate in the application. The peak flux density (Bpk) should
remain below 2700Gauss. To calculate the peak flux density use the follow-
ing formula:
Bpk (Gauss) = K1_Factor * Ipk(A)
3. In high volt-µsec applications, it is important to calculate the core loss of the
transformer. Approximate transformer core loss can be calculated as:
CoreLoss (W) = 2.58E-13 X (Freq_kHz)
^1.35
X (DB_Gauss)
^2.80
where DB can be calculated as:
For Flyback Topology: DB = K1_Factor * D(A)
For Forward Topology: DB = K1_Factor * Volt-µsec
4. The “NL” suffix indicates an RoHS-compliant part number. Non-NL suffixed
parts are not necessarily RoHS compliant, but are electrically and mechani-
cally equivalent to NL versions. If a part number does not have the “NL”
suffix, but an RoHS compliant version is required, please contact Pulse for
availability.
NOTES:
5.0VDC. 0.25A
85~265vac
132Khz
SHIELD
1
5
NC
1
NC
SHIELD
1
7
8
Pulse Jack
E l e c t r o n i c s
HIGH FREQUENCY
WIRE WOUND
TRANSFORMERS
EE13 Platforms - THT Type
www.pulseelectronics.com 2 P690.B (1/11)
This is a “Preliminary” product data sheet. Products mentioned on this data sheet are in development and in the process of being qualified. These products are not fully
released nor are they in production. Features, specifications and performance of products offered are subject to change without notice. Other brand and product names
mentioned herein may be products and/or registered trademarks of their respective owners. For current information on this product, please contact the Pulse office
nearest you and ask for the “Power Applications Engineer.” Pulse and the Squarewave logo are trademarks of Pulse Electronics, Inc., registered in the U.S. and other
countries.
© Copyright, 2011. Pulse Electronics, Corporation. All rights reserved.
For More Information:
Pulse North America
Headquarters
12220 World Trade Dr.
San Diego, CA 92128
U.S.A.
TEL: 858 674 8100
FAX: 858 674 8262
Pulse South Asia
150 Kampong Ampat
#07-01/02
KA Centre
Singapore 368324
TEL: 65 6287 8998
FAX: 65 6280 0080
Pulse North Asia
No. 26
Kao Ching Rd.
Yang Mei Chen
Taoyuan Hsien
Taiwan, R. O. C.
32667
TEL: 886 3 4643715
FAX: 886 3 4641911
Pulse China
Headquarters
B402, Shenzhen Academy of
Aerospace Technology Bldg.
10th Kejinan Rd.
High-Tech Zone
Nanshan District
Shenzen, PR China 518057
TEL: 86 755 33966678
FAX: 86 755 33966700
Pulse North China
Room 1503
XinYin Building
No. 888 YiShan Rd.
Shanghai 200233
China
TEL: 86 21 32181071
FAX: 86 21 32181396
Pulse European
Headquarters
Einsteinstrasse 1
D-71083 Herrenberg
Germany
TEL: 49 7032 7806 0
FAX: 49 7032 7806 12
Mechanical
PA2718NL
.768 MAX/19.5 MAX
.591 MAX
15.0 MAX
.531 MAX
13.5 MAX
1
2
9
8
7
6
.098
2.5
.024
0.6
.606
15.4
3
4
5
.157 ± .020
4.0 ± 0.5
.098
2.5
.606
15.4
9
8
7
6
1
2
3
4
5
HOLES PATTERN
COPPER SIDE
PAXXXXNL
DATE CODE ORIGIN
