High Frequency Wire Wound Transformers
EP13 Platforms - SMT
NOTES:
1. The temperature of the component (ambient plus temperature rise) must be within
For Flyback Topology: ΔB = K1_Factor * ΔI(A)
the stated operating temperature range.
For Forward Topology: ΔB = K1_Factor * Volt-µsec
2. The above transformers and inductors have been tested and approved by Pulse’s
power IC partners and are sited in the appropriate datasheet or evaluation board
documentation at these companies. To determine which IC and IC partners are
matched with the above Pulse part numbers please consult the IC Cross Reference on
the Pulse website.
3. For flyback topology applications, it is necessary to ensure that the transformer will
not saturate in the application. The peak flux density (Bpk) should remain below
2700Gauss.
5. The standard pin-numbering for this package is indicated in the below mechanical
drawing showing pin 1 on the lower right corner and the numbers proceeding clock
wise to pin 10 on the upper right corner. However, for those parts that are indicated
as having an alternate pinout, pin 1 is in the lower left corner and the numbers
proceed counter-clockwise to pin 10 in the upper left corner. Refer to the alternate
mechanical drawing for further details.
6. Optional Tape & Reel packaging can be ordered by adding a “T” suffix to the part
number (i.e. PA1136NL becomes PA1136NLT). Pulse complies with industry standard
tape and reel specification EIA481. The tape and reel for this product has a width
(W=32mm), pitch (Po=24mm) an depth (Ko=13.2mm).
To calculate the peak density, use the following formula
Bpk (Gauss) = K1_Factor * Ipk (A)
4. In high volt-sec applications, it is important to calculate the core loss of the trans-
former.
7. The “NL” suffix indicates an RoHS-compliant part number. Non-NL suffixed parts are
not necessarily RoHS compliant, but are electrically and mechanically 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.
Approximate transformer core loss can be calculated as:
CoreLoss (W) = 2.5E-14 * (Freq_kHz)1.63 * (ΔB_Gauss)2.63
where ΔB can be calculated as:
Mechanical
Alternate Mechanical
PAXXXXNL
PA2194NL PA2669NL, PA3171NL, PA3519NL, and PA3642NL
10.0±± ±0.5
10,00
10.0±± ±0.5
2,50
10,00
2,50
2,50
2,50
0,70 ± ±0,05
17.0±± ±0.65
0,70 ± ±0,05
10±X
10±X
1,22 ± ±0,05
1,22 ± ±0,05
10±X
10±X
10
6
6
10
PAXXXXNL
PAXXXXNL
13,36 18,16
13,36 18,16
17.0±± ±0.65
Date±±Code
Date±±Code
2,54
2,54
Country±of±Origin
Country±of±Origin
1
5
5
1
13.0±± ±1.0
13.0±± ±1.0
13,11
MAX
13,11
MAX
12,32
MAX
12,32
MAX
12,07
MAX
12,07
MAX
0,13
0,13
10±SURFACES
10±SURFACES
For More Information
Pulse Worldwide
Headquarters
Pulse Europe
Pulse Electronics GmbH
Pulse China Headquarters
Pulse North China
Room 2704/2705
Super Ocean Finance Ctr.
2067 Yan An Road West
Shanghai 200336
China
Pulse South Asia
3 Fraser Street
0428 DUO Tower
Singapore 189352
Pulse North Asia
1F., No.111 Xiyuan Rd
Zhongli City
Taoyuan City 32057
Taiwan (R.O.C)
Pulse Electronics (ShenZhen) CO., LTD
D708, Shenzhen Academy of
Aerospace Technology,
The 10th Keji South Road,
Nanshan District, Shenzhen,
P.R. China 518057
15255 Innovation Drive Ste 100 Am Rottland 12
San Diego, CA 92128
U.S.A.
58540 Meinerzhagen
Germany
Tel: 858 674 8100
Fax: 858 674 8262
Tel: 49 2354 777 100
Fax: 49 2354 777 168
Tel: 86 755 33966678
Fax: 86 755 33966700
Tel: 86 21 62787060
Fax: 86 2162786973
Tel: 65 6287 8998
Fax: 65 6280 0080
Tel: 886 3 4356768
Fax: 886 3 4356820
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, 2018. Pulse Electronics, Inc. All rights reserved.
http://www.power.pulseelectronics.com/contact
power.pulseelectronics.com
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