Electrical Specifications @25° C - Operating Temper ature -40° C to 130° C
1
Pri. Inductance
(4-3)
216
uH +/- 25%
Lk. Inductance
(4-3)
3.5
uH Max
w/ (5,6,7,8) shorted
DCR
(4-3)
2.6
(2-1)
2.72
Ohms Max
(5-6)
0.11
(7-8)
0.12
Hi-Pot
Pri-Sec
1650
Vdc
K1 Factor
7187
Pri. Inductance
(4-3)
216
uH +/- 25%
Lk. Inductance
(4-3)
3.5
uH Max
w/ (5,6,7,8) shorted
DCR
(4-3)
2.6
(2-1)
1.8
Ohms Max
(5-6)
0.32
0.32
(7-8)
Hi-Pot
Pri-Sec
1650
Vdc
K1 Factor
7187
Pri. Inductance
(4-3)
216
uH +/- 25%
Lk. Inductance
(4-3)
3.5
uH Max
w/ (5,6,7,8) shorted
DCR
(4-3)
2.6
(2-1)
2.72
Ohms Max
(5-6)
1.2
(7-8)
1.2
Hi-Pot
Pri-Sec
1650
Vdc
7187
K1 Factor
Pri. Inductance
(4-3)
21.8
uH +/- 25%
Lk. Inductance
(4-3)
0.5
uH Max
w/ (5,6,7,8) shorted
DCR
(4-3)
0.3
(2-1)
1.6
Ohms Max
(5-6)
0.11
(7-8)
0.12
Hi-Pot
Pri-Sec
1650
Vdc
K1 Factor
2357
Schematic
4
7.43
3
2
2.86
1
1
8
1
6
7
5
33-57v
200kHz
10v/50mA
3.3v/0.9W
3.3v/0.9W
Flyback Transformer
4
3
2
1
5.2
1
6
7
2.0
1
8
5
33-57v
200kHz
10v/50mA
5.0v/0.9W
5.0v/0.9W
Flyback Transformer
4
3
2
0.83
1
1
8
2.17
1
5
33-57v
200kHz
10v/50mA
12v/0.9W
6
7
12v/0.9W
Flyback Transformer
4
3
2
2.89
1
5
10-14v
200kHz
10v/50mA
3.3v/0.9W
6
7
2.86
1
1
8
3.3v/0.9W
Flyback Transformer
1
power.pulseelectronics.com
P847.B (04/18)
http://www.power.pulseelectronics.com/contact
High Frequency Wire Wound Transformers
ER7.5 Platforms - SMT - PA4470.XXXNL
Electrical Specifications @25° C - Operating Temper ature -40° C to 130° C
1
Pri. Inductance
(4-3)
21.8
uH +/- 25%
Lk. Inductance
(4-3)
0.5
uH Max
w/ (5,6,7,8) shorted
DCR
(4-3)
0.3
PA4470.005NL
(2-1)
1.6
Ohms Max
(5-6)
0.15
(7-8)
0.16
Hi-Pot
Pri-Sec
1650
Vdc
K1 Factor
2357
Pri. Inductance
(4-3)
21.8
uH +/- 25%
Lk. Inductance
(4-3)
0.5
uH Max
w/ (5,6,7,8) shorted
DCR
(4-3)
0.3
PA4470.006NL
(2-1)
1.6
Ohms Max
(5-6)
1.15
(7-8)
1.2
Hi-Pot
Pri-Sec
1650
Vdc
K1 Factor
2357
Pulse PN
Schematic
4
3
2
1
1.6
1
6
7
2.0
1
8
5
10-14v
200kHz
10v/50mA
5v/0.9W
5v/0.9W
Flyback Transformer
4
3
2
1
0.67
1
5
10-14v
200kHz
10v/50mA
12v/0.9W
6
7
0.83
1
12v/0.9W
8
Flyback Transformer
Notes:
1.
2.
The temperature of the component (ambient plus temperature rise) must be within
the stated operating temperature range.
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
2600Gauss. To calculate the peak flux density use the following formula:
Bpk (Gauss) = K1_Factor * Ipk(A)
In high volt-μsec applications, it is important to calculate the core loss of the trans-
former. Approximate transformer core loss can be calculated as:
CoreLoss (W) = 3.84E-14 * (Freq_kHz)
1.63
* (ΔB_Gauss)
2.63
where
ΔB
can be calculated as:
For Flyback Topology:
ΔB
= K1_Factor *
ΔI(A)
4.
Optional Tape & Reel packaging can be ordered by adding a “T” suffix to the part
number (i.e. (PA4470.001NL becomes PA4470.001NLT). 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) and depth (Ko=5.8mm).
3.
2
power.pulseelectronics.com
P847.B (04/18)
http://www.power.pulseelectronics.com/contact
High Frequency Wire Wound Transformers
ER7.5 Platforms - SMT - PA4470.XXXNL
Mechanical
PA4470.XXXNL
6.6
9.5 MAX
9.70
7.50
8X 0.6
1.75
3X 1.75 (=5.25)
8X 1.00
1.75
3X 1.75 (=5.25)
8.0 MAX
7.8 MAX
SUGGESTED PAD LAYOUT
6.0 MAX
0.13
8 SURFACES
8X 0.5 0.2
TAPE & REEL INFO
T
E
P
2
P
0
ØD
0
B
F
W
A
N
K
0
P
1
G
SURFACE MOUNTING TYPE, REEL/TAPE LIST
REEL SIZE (mm)
PA4470.XXXNLT
A
Ø330
A
0
9.4
B
N/A
B
0
8.3
G
12
N
100
E
N/A
F
11.5
TAPE SIZE (mm)
P
1
N/A
P
0
4
P
N/A
W
24
T
N/A
K
5.8
K
0
3.3
QTY
PCS/REEL
700
For More Information
Pulse Worldwide
Pulse Europe
Headquarters
Pulse Electronics GmbH
15255 Innovation Drive Ste 100 Am Rottland 12
San Diego, CA 92128
58540 Meinerzhagen
U.S.A.
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
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
Pulse North Asia
1F., No.111 Xiyuan Rd
Zhongli City
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: 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
