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Height: 11.45mm Max
Footprint: 15.24mm x 13.1mm Max
Toplogy: Forward and Flyback
Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C5
PA1133NL
Pri. Inductance
(3-4)
253.4µH ± 10%
Lk. Inductance
(3-4) with
(8, 7, 6, 5) shorted
7.5µH MAX
(3-4)
420mΩ MAX
(6, 5-8, 7)
7.5mΩ MAX
(2-1)
115mΩ MAX
Hi-Pot
Pri-Sec
1500Vrms
K1 Factor
4671.8
Pri. Inductance
(3-4)
253.4µH ±10%
Lk. Inductance
(3-4) with
(8, 7, 6, 5) shorted
7.5µH MAX
(3-4)
420mΩ MAX
(6, 5-8, 7)
16mΩ MAX
(2-1)
115mΩ MAX
Hi-Pot
Pri-Sec
1500Vrms
K1 Factor
4671.8
Pri. Inductance
(3-4)
264.1µH ±10%
Lk. Inductance
(3-4) with
(8, 7, 6, 5) shorted
6 µH MAX
(3-4)
800mΩ MAX
(6, 5-8, 7)
45mΩ MAX
(2-1)
115mΩ MAX
Hi-Pot
Pri-Sec
1500Vrms
K1 Factor
4769.7
DCR
PA1134NL
DCR
PA1135NL
DCR
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Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C5
PA1253NL
Pri. Inductance
(3-4)
253.4 µH ±10%
Lk. Inductance
(3-4) with
(8, 7, 6, 5) shorted
12 µH MAX
(3-4)
420 mΩ MAX
(2-1)
335 mΩ MAX
(5-6)
9.5 mΩ MAX
(7-8)
7.2 mΩ MAX
Hi-Pot
Pri-Sec
1500Vrms
K1 Factor
4671.8
Pri. Inductance
(3-4)
20.4µH ±10%
Lk. Inductance
(3-4) with
(10, 9, 8, 7) shorted
1.5 µH MAX
(3-4)
80 mΩ MAX
(6, 5-8, 7)
7.5 mΩ MAX
(2-1)
150 mΩ MAX
Hi-Pot
Pri-Sec
1500Vrms
K1 Factor
1002.9
Pri. Inductance
(3-4)
155 µH ±10%
Lk. Inductance
(3-4) with
(8, 7, 6, 5) shorted
5 µH MAX
(3-4)
530 mΩ MAX
(6, 5-8, 7)
31 mΩ MAX
(2-1)
900 mΩ MAX
Hi-Pot
Pri-Sec
1500Vrms
K1 Factor
3117.5
Pri. Inductance
(3-4)
155 µH ±10%
Lk. Inductance
(3-4) with
(8, 7, 6, 5) shorted
5 µH MAX
(3-4)
570 mΩ MAX
(6, 5-8, 7)
40 mΩ MAX
(2-1)
1000 mΩ MAX
Hi-Pot
Pri-Sec
1500 Vrms
K1 Factor
3117.5
DCR
PA1277NL
DCR
PA1282NL
DCR
PA1283NL
DCR
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Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C5
PA1284NL
Pri. Inductance
(3-4)
155 µH ±10%
Lk. Inductance
(3-4) with
(8, 7, 6, 5) shorted
5 µH MAX
(3-4)
540 mΩ MAX
(6, 5-8, 7)
370 mΩ MAX
(2-1)
920 mΩ MAX
Hi-Pot
Pri-Sec
1500 Vrms
K1 Factor
3117.5
Pri. Inductance
(3-4)
20.4 µH ±10%
Lk. Inductance
(3-4) with
(8,5) shorted
1.5 µH MAX
(3-4)
80 mΩ MAX
(5-8)
30 mΩ MAX
(2-1)
105 mΩ MAX
Hi-Pot
Pri-Sec
1500 Vrms
K1 Factor
1002.9
Pri. Inductance
(3-4)
185 µH ±10%
Lk. Inductance
(3-4) with
(8, 7, 6, 5) shorted
10 µH MAX
(3-4)
420 mΩ MAX
(6, 5-8, 7)
12 mΩ MAX
(2-1)
115 mΩ MAX
Hi-Pot
Pri-Sec
1500 Vrms
K1 Factor
3410.8
Pri. Inductance
(3-4)
25.2µH ±10%
Lk. Inductance
(3-4) with
(1, 2, 8, 7, 6, 5) shorted
0.55 µH MAX
(3-4)
135 mΩ MAX
(6, 5-8, 7)
11 mΩ MAX
(2-1)
115 mΩ MAX
Hi-Pot
Pri-Sec
1500 Vdc
K1 Factor
1115.0
DCR
PA1370NL
DCR
PA1721NL
DCR
PA2362NL
DCR
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Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C5
PA2363NL
Pri. Inductance
(3-4)
25.2 µH ±10%
Lk. Inductance
(3-4) with
(1, 2, 8, 7, 6, 5) shorted
0.85 µH MAX
(3-4)
135 mΩ MAX
(6, 5-8, 7)
9 mΩ MAX
(2-1)
180 mΩ MAX
Hi-Pot
Pri-Sec
1500 Vrms
K1 Factor
1115.0
Pri. Inductance
(3-4)
25.2µH ±10%
Lk. Inductance
(3-4) with
(1, 2, 8, 7, 6, 5) shorted
1 µH MAX
(3-4)
145 mΩ MAX
(6, 5-8, 7)
7.5 mΩ MAX
(2-1)
110 mΩ MAX
Hi-Pot
Pri-Sec
1500 Vrms
K1 Factor
1059.4
Pri. Inductance
(3-4)
24µH ±10%
Lk. Inductance
(3-4) with
(8, 7, 6, 5) shorted
0.75 µH MAX
(3-4)
82 mΩ MAX
(6, 5-8, 7)
13 mΩ MAX
(2-1)
80 mΩ MAX
Hi-Pot
Pri-Sec
1500 Vrms
K1 Factor
1179.9
Pri. Inductance
(3-4)
24 µH ±10%
Lk. Inductance
(1-4) with
(8, 7, 6, 5) shorted
0.6 µH MAX
(3-4)
90 mΩ MAX
(6, 5-8, 7)
23 mΩ MAX
(2-1)
130 mΩ MAX
Hi-Pot
Pri-Sec
1500 Vdc
K1 Factor
1179.9
DCR
PA2364NL
DCR
PA2454NL
PA2455NL
4
DCR
DCR
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Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C5
Pri. Inductance
(3-4)
24 µH ±10%
Lk. Inductance
(3,4) with
(8, 7, 6, 5) shorted
0.6 µH MAX
(3-4)
86 mΩ MAX
(6, ,5-8, 7)
86 mΩ MAX
(2-1)
470 mΩ MAX
Hi-Pot
Pri-Sec
1500 Vrms
K1 Factor
1179.9
Pri. Inductance
(3-4)
50.5 µH ±10%
Lk. Inductance
(3-4) with
(8, 7, 6, 5) shorted
1.4 µH MAX
(3-4)
420 mΩ MAX
(6, 5-8, 7)
47 mΩ MAX
(2-1)
174 mΩ MAX
Hi-Pot
Pri-Sec
1500 Vrms
K1 Factor
1241.4
Pri. Inductance
(4-1) with 3,2 shorted
40 µH ±10%
(4-1) with 3,2 shorted
32 µH Min at 1.88A
(4-1) with
(5, 6, 7, 8) shorted
1.45 µH MAX
(3-4)
410 mΩ MAX
(6, 5-8, 7))
140 mΩ MAX
(2-1)
140 mΩ MAX
Hi-Pot
Pri-Sec
1500 Vdc
K1 Factor
1241.4
Pri. Inductance
(4-1) with 3,2 shorted
40 µH ±10%
(4-1) with 3.2 shorted
32 µH Min at 1.88A
(4-1) with
(5, 6, 7, 8) shorted
1.45 µH MAX
(4-1)
405 mΩ MAX
(8-6)
470 mΩ MAX
(7-5)
470 mΩ MAX
Hi-Pot
Pri-Sec
1500 Vdc
K1 Factor
983.3
PA2456NL
DCR
PA2627NL
DCR
Lk. Inductance
PA3948.001NL
DCR
Lk. Inductance
PA3948.002NL
DCR
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Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C
(4-1) with 3, 2 shorted
40 µH ±10%
(4-1) with 3, 2 shorted
32 µH Min at 1.88A
(4-1) with
(5, 6, 7, 8) shorted
1.45 µH MAX
(4-1)
405 mΩ MAX
(8-6)
470 mΩ MAX
(7-5)
470 mΩ MAX
Hi-Pot
Pri-Sec
1500 Vrms
K1 Factor
983.3
Pri. Inductance
(4-1) with 3, 2 shorted
40 µH ± 10%
(4-1) with 3, 2 shorted
32 µH Min at 1.88A
(4-1) with
(5, 6, 7, 8) shorted
1.45 µH MAX
(4-1)
220 mΩ MAX
(8-6)
58 mΩ MAX
(7-5)
58 mΩ MAX
Hi-Pot
Pri-Sec
1500 Vrms
K1 Factor
983.3
Pri. Inductance
(4-1) with 3, 2 shorted
40 µH ±10%
(4-1) with 3, 2 shorted
32 µH Min at 1.88A
(4-1) with
(5, 6, 7, 8) shorted
1.6 µH MAX
(4-1)
220 mΩ MAX
(7-6)
1275 mΩ MAX
Hi-Pot
Pri-Sec
1500 Vrms
K1 Factor
983.3
Pri. Inductance
(4-1) with 3, 2 shorted
40 µH ±10%
(4-1) with 3, 2 shorted
32 µH Min at 1.88A
(4-1) with
(5, 6, 7, 8) shorted
1.65 µH MAX
(4-1)
220 mΩ MAX
(7-6)
3350 mΩ MAX
Hi-Pot
Pri-Sec
1500 Vrms
K1 Factor
983.3
Pri. Inductance
Lk. Inductance
PA3948.003NL
DCR
Lk. Inductance
PA3948.004NL
PA3948.005NL
DCR
Lk. Inductance
DCR
Lk. Inductance
PA3918.006NL
DCR
6
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Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C
PB2115NL
Pri. Inductance
(4-6)
25.2 µH ±10%
Lk. Inductance
(4-6) with
(1,2,3,4,7,8) shorted
1.45 µH MAX
(4-6)
250 mΩ MAX
(7, 8-2,1)
3.3 mΩ MAX
(7-5)
20 mΩ MAX
Hi-Pot
Pri-Sec
1500 Vrms
K1 Factor
1115.0
Pri. Inductance
(3-2)
40 µH ± 7%
Lk. Inductance
(3-2) with
(5, 6, 7, 8) shorted
0.05 µH MAX
(3-2)
98 mΩ MAX
(5-7)
50 mΩ MAX
(6-8)
65 mΩ MAX
Hi-Pot
Pri-Sec
1650 Vrms
K1 Factor
1769.9
Pri. Inductance
(4-6)
75 µH ±15%
Lk. Inductance
(4-6) with (1,2,3,5,7,8) shorted
1 µH MAX
(4-6)
110 mΩ MAX
(7,8-2,1)
35 mΩ MAX
(5-3)
85 mΩ MAX
Hi-Pot
Pri-Sec
1500 Vrms
K1 Factor
4424.8
Pri. Inductance
(2-4)
33.1 µH ±15%
(2-4)
140 mΩ MAX
(8-6)
115 mΩ MAX
(7-5)
40 mΩ MAX
Hi-Pot
Pri-Sec
1000 Vrms
K1 Factor
1126.6
DCR
PG0686NL
PG0721NL
PG0855NL
7
DCR
DCR
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Notes:
1. The temperature of the component (ambient plus temperature rise) must be within the
stated operating temperature range.
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.
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 transformer.
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:
For Flyback Topology: ΔB = K1_Factor * (A)
For Forward Topology: ΔB = K1_Factor * Volt-µsec
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).
Mechanical
PAXXXXNL
PAXXXNL
Date Code
Country of Origin
For More Information
Pulse Worldwide
Headquarters
15255 Innovation Drive Ste 100
San Diego, CA 92128
U.S.A.
Pulse Europe
Pulse Electronics GmbH
Am Rottland 12
58540 Meinerzhagen
Germany
Pulse China Headquarters
Pulse Electronics (ShenZhen) CO., LTD
D708, Shenzhen Academy of
Aerospace Technology,
The 10th Keji South Road,
Nanshan District, Shenzhen, P.R.
China 518057
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 Road
Zhongli District
Taoyuan City 32057
Taiwan (R.O.C)
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.
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