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High Frequency Wire Wound
Transformers
EP7 Platforms - SMT
PRELIMINARY
Power Range: up to 5W
Height: 9.27mm Max
Footprint: 13.34mm x 10.7mm Max
Toplogy: Forward and Flyback
USA 858 674 8100 Germany 49 7032 7806 0 Singapore 65 6287 8998 Shanghai 86 21 62787060 China 86 755 33966678 Taiwan 886 3 4356768
Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C
Pri. Inductance (3-4) 500µH ± 10%
Lk. Inductance
(3-4) with
(8, 7, 6, 5) shorted 8µH MAX
(3-4) 1750mΩ MAX
DCR (6, 5-8, 7) 15mΩ MAX
(2-1) 215mΩ MAX
Hi-Pot Pri-Sec 1500Vrms
K1 Factor 9735.2
Pri. Inductance (3-4) 500µH ±10%
Lk. Inductance
(3-4) with
(8, 7, 6, 5) shorted 7.5µH MAX
(3-4) 1750mΩ MAX
DCR (6, 5-8, 7) 35mΩ MAX
(2-1) 215mΩ MAX
Hi-Pot Pri-Sec 1500Vrms
K1 Factor 9735.2
Pri. Inductance (3-4) 521µH ±10%
Lk. Inductance
(3-4) with
(8, 7, 6, 5) shorted 7.5 µH MAX
(3-4) 1750mΩ MAX
(6, 5-8, 7) 100mΩ MAX
(2-1) 220mΩ MAX
Hi-Pot Pri-Sec 1500Vrms
K1 Factor 9937.1
PA1130NL
PA1131NL
PA1132NL DCR
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
5
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High Frequency Wire Wound
Transformers
EP7 Platforms - SMT
PRELIMINARY
Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C
Pri. Inductance (3-4) 310 µH ±10%
Lk. Inductance
(3-4) with
(8, 7, 6, 5) shorted 5 µH MAX
(3-4) 1600mΩ MAX
(6, 5-8, 7) 45 mΩ MAX
(2-1) 2600 mΩ MAX
Hi-Pot Pri-Sec 1500Vrms
K1 Factor 6584.5
Pri. Inductance (3-4) 310µH ±10%
Lk. Inductance
(3-4) with
(8, 7, 6, 5) shorted 5 µH MAX
(3-4) 1600 mΩ MAX
DCR (6, 5-8, 7) 87 mΩ MAX
(2-1) 2650 mΩ MAX
Hi-Pot Pri-Sec 1500Vrms
K1 Factor 6584.5
Pri. Inductance (3-4) 310 µH ±10%
Lk. Inductance
(3-4) with
(8, 7, 6, 5) shorted 5 µH MAX
(3-4) 1600 mΩ MAX
(6, 5-8, 7) 550 mΩ MAX
(2-1) 2600 mΩ MAX
Hi-Pot Pri-Sec 1500Vrms
K1 Factor 6584.5
Pri. Inductance (8-1) 24.5 µH ±10%
Lk. Inductance
(8-1) with
(2, 3, 4, 5, 6, 7) shorted 110 µH MAX
(8-1) 50 mΩ MAX
(7-2) 50 mΩ MAX
(6-3) 110 mΩ MAX
(5-4) 160 mΩ MAX
Hi-Pot Pri-Sec 600 Vdc
K1 Factor 1635.5
PA1279NL
PA1280NL
DCR
PA1281NL
PA1825NL
DCR
DCR
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
5
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High Frequency Wire Wound
Transformers
EP7 Platforms - SMT
PRELIMINARY
Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C
Pri. Inductance (1-4) 100µH ±25%
(1-4) 85 mΩ MAX
(5-7) 8760 mΩ MAX
(7-8) 2200 mΩ MAX
Hi-Pot Pri-Sec 500 Vrms
K1 Factor 93.5
Pri. Inductance (3-4) 22.5 µH ±10%
Lk. Inductance
(3-4) with
(5,7) shorted 0.6 µH MAX
(3-4) 100 mΩ MAX
(5-7) 200 mΩ MAX
(2-1) 110 mΩ MAX
Hi-Pot Pri-Sec 1500 Vrms
K1 Factor 1401.9
Pri. Inductance (3-4) 30 µH ±5%
Lk. Inductance
(3-4) with
(8, 7, 6, 5) shorted 0.7 µH MAX
(3-4) 250 mΩ MAX
(6, 5-8, 7) 72 mΩ MAX
(2-1) 170 mΩ MAX
Hi-Pot Pri-Sec 500 Vrms
K1 Factor 1168.2
Pri. Inductance (3-4) 48.6µH ±5%
Lk. Inductance
(3-4) with
(8, 7, 6, 5) shorted 0.9 µH MAX
(3-4) 250 mΩ MAX
DCR (6, 5-8, 7) 35 mΩ MAX
(2-1) 130 mΩ MAX
Hi-Pot Pri-Sec 500 Vdc
K1 Factor 1892.5
PA2571NL
PA2617NL
PA2626NL
PA3018NL
DCR
DCR
DCR
FORWARD TRANSFORMER
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
5
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High Frequency Wire Wound
Transformers
EP7 Platforms - SMT
PRELIMINARY
Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C
Pri. Inductance (3-4) 47.2 µH ±5%
Lk. Inductance
(3-4) with
(1, 2, 8, 7, 6, 5) shorted 0.7 µH MAX
(3-4) 250 mΩ MAX
DCR (6, 5-8, 7) 72 mΩ MAX
(2-1) 170 mΩ MAX
Hi-Pot Pri-Sec 500 Vrms
K1 Factor 1838.0
Pri. Inductance (3-4) 56.7 µH ±5%
Lk. Inductance
(3-4) with
(8, 7, 6, 5) shorted 0.98 µH MAX
(3-4) 400 mΩ MAX
DCR (6, 5-8, 7) 200 mΩ MAX
(2-1) 110 mΩ MAX
Hi-Pot Pri-Sec 500 Vrms
K1 Factor 1766.4
Pri. Inductance (3-4) 48.8 µH ±5%
Lk. Inductance
(3-4) with
(8, 7, 6, 5) shorted 0.4 µH MAX
(3-4) 100mΩ MAX
DCR (6, 5-8, 7) 200 mΩ MAX
(2-1) 110 mΩ MAX
Hi-Pot Pri-Sec 500 Vrms
K1 Factor 3040.5
PA3019NL
PA3020NL
PA3021NL
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
FLYBACK TRANSFORMER
5
5power.pulseelectronics.com Pre P744.B (09/18) http://www.power.pulseelectronics.com/contact
High Frequency Wire Wound
Transformers
EP7 Platforms - SMT
PRELIMINARY
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) * (ΔB_Gauss)
where ΔB can be calculated as:
For Flyback Topology: ΔB = K1_Factor * (A)
For Forward Topology: ΔB = K1_Factor * Volt-µsec
5. Optional Tape & Reel packaging can be ordered by adding a “T” sux to the part
number (i.e. PA1130NL becomes PA1130NLT). Pulse complies with industry standard tape
and reel specification EIA481. The tape and reel for this product has a width (W=24mm),
pitch (Po=16mm) an depth (Ko=9.8mm).
1.63 2.63
PAXXXNL
