1power.pulseelectronics.com P742.E (01/19) http://www.power.pulseelectronics.com/contact
HIGH FREQUENCY WIRE-WOUND
TRANSFORMER
EP10 Platforms - SMT
Power Range: up to 30W
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
Pri. Inductance (3-4) 253.4µH ± 10%
Lk. Inductance (3-4) with
(8, 7, 6, 5) shorted 7.5µH MAX
(3-4) 420mΩ MAX
PA1133NL DCR (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
PA1134NL DCR (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
PA1135NL DCR (6, 5-8, 7) 45mΩ MAX
(2-1) 115mΩ MAX
Hi-Pot Pri-Sec 1500Vrms
K1 Factor 4769.7
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
2power.pulseelectronics.com P742.E (01/19) http://www.power.pulseelectronics.com/contact
HIGH FREQUENCY WIRE-WOUND
TRANSFORMER
EP10 Platforms - SMT
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
DCR
(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
DCR (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
DCR (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
DCR (6, 5-8, 7) 40 mΩ MAX
(2-1) 1000 mΩ MAX
Hi-Pot Pri-Sec 1500 Vrms
K1 Factor 3117.5
PA1282NL
PA1283NL
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
(from pin 8 to 5)
PA1277NL
3power.pulseelectronics.com P742.E (01/19) http://www.power.pulseelectronics.com/contact
HIGH FREQUENCY WIRE-WOUND
TRANSFORMER
EP10 Platforms - SMT
Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C5
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
DCR (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
DCR (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
DCR (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
DCR (6, 5-8, 7) 11 mΩ MAX
(2-1) 115 mΩ MAX
Hi-Pot Pri-Sec 1500 Vdc
K1 Factor 1115.0
PA1284NL
PA1370NL
PA1721NL
PA2362NL
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
FORWARD TRANSFORMER
FLYBACK TRANSFORMER
4power.pulseelectronics.com P742.E (01/19) http://www.power.pulseelectronics.com/contact
HIGH FREQUENCY WIRE-WOUND
TRANSFORMER
EP10 Platforms - SMT
Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C5
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
DCR (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
DCR (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
DCR (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
DCR (6, 5-8, 7) 23 mΩ MAX
(2-1) 130 mΩ MAX
Hi-Pot Pri-Sec 1500 Vdc
K1 Factor 1179.9
PA2363NL
PA2364NL
PA2454NL
PA2455NL
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
5power.pulseelectronics.com P742.E (01/19) http://www.power.pulseelectronics.com/contact
HIGH FREQUENCY WIRE-WOUND
TRANSFORMER
EP10 Platforms - SMT
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
DCR (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
DCR (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
Lk. Inductance (4-1) with
(5, 6, 7, 8) shorted 1.45 µH MAX
(3-4) 410 mΩ MAX
DCR (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
Lk. Inductance (4-1) with
(5, 6, 7, 8) shorted 1.45 µH MAX
(4-1) 405 mΩ MAX
DCR (8-6) 470 mΩ MAX
(7-5) 470 mΩ MAX
Hi-Pot Pri-Sec 1500 Vdc
K1 Factor 983.3
PA2456NL
PA2627NL
PA3948.001NL
PA3948.002NL
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
6power.pulseelectronics.com P742.E (01/19) http://www.power.pulseelectronics.com/contact
HIGH FREQUENCY WIRE-WOUND
TRANSFORMER
EP10 Platforms - SMT
Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C
Pri. Inductance (4-1) with 3, 2 shorted 40 µH ±10%
(4-1) with 3, 2 shorted 32 µH Min at 1.88A
Lk. Inductance (4-1) with
(5, 6, 7, 8) shorted 1.45 µH MAX
(4-1) 405 mΩ MAX
PA3948.003NL DCR (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
Lk. Inductance (4-1) with
(5, 6, 7, 8) shorted 1.45 µH MAX
(4-1) 220 mΩ MAX
PA3948.004NL DCR (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
Lk. Inductance (4-1) with
(5, 6, 7, 8) shorted 1.6 µH MAX
DCR (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
Lk. Inductance (4-1) with
(5, 6, 7, 8) shorted 1.65 µH MAX
DCR (4-1) 220 mΩ MAX
(7-6) 3350 mΩ MAX
Hi-Pot Pri-Sec 1500 Vrms
K1 Factor 983.3
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
5
PA3948.005NL
PA3918.006NL
7power.pulseelectronics.com P742.E (01/19) http://www.power.pulseelectronics.com/contact
HIGH FREQUENCY WIRE-WOUND
TRANSFORMER
EP10 Platforms - SMT
Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C
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
PB2115NL DCR (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
PG0686NL DCR (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
PG0721NL DCR
(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%
PG0855NL DCR
(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
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
5
power.pulseelectronics.com P742.E (01/19) http://www.power.pulseelectronics.com/contact
HIGH FREQUENCY WIRE-WOUND
TRANSFORMER
EP10 Platforms - SMT
Pulse Worldwide
Headquarters
15255 Innovation Drive Ste 100
San Diego, CA 92128
U.S.A.
Tel: 858 674 8100
Fax: 858 674 8262
Pulse Europe
Pulse Electronics GmbH
Am Rottland 12
58540 Meinerzhagen
Germany
Tel: 49 2354 777 100
Fax: 49 2354 777 168
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
Tel: 86 755 33966678
Fax: 86 755 33966700
Pulse North China
Room 2704/2705
Super Ocean Finance Ctr.
2067 Yan An Road West
Shanghai 200336
China
Tel: 86 21 62787060
Fax: 86 2162786973
Pulse South Asia
3 Fraser Street
0428 DUO Tower
Singapore 189352
Tel: 65 6287 8998
Fax: 65 6280 0080
Pulse North Asia
1F, No.111
Xiyuan Road
Zhongli District
Taoyuan City 32057
Taiwan (R.O.C)
Tel: 886 3 4356768
Fax: 886 3 4356820
For More Information
Performance warranty of products oered 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.
8
PAXXXXNL
Mechanical
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” sux 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).
PAXXXNL
Date Code
Country of Origin
