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Document 305
Planar Transformers For National Semiconductor
LM5030 Controller IC
Less than 10 mm high, Coilcraft’s planar transformers are
ideal for use in high-current telecom power supply applica-
tions that require high efficiency in a low-profile package.
These transformers are designed specifically to perform
with the National Semiconductor LM5030 Push-Pull Cur-
rent Mode PWM Controller. They provide three different
output ratings to suit a variety of applications All offer
1500 Vrms primary to secondary isolation.
Coilcraft’s A9785-B, A0153-A and B0414-A are output
chokes and include an extra winding for auxiliary voltage
supply. Our MSS6132-103 functions as the input filter
choke in the same circuit. Refer to separate data sheets
for additional information on these parts.
Request free evaluation samples by contacting Coilcraft
or visiting www.coilcraft.com.
Output Input Output Primary Leakage
Turns
Part
power voltage
Output  current2  inductance3 inductance DCR max (Ohms) ratio
 number1 (W) range (V) voltage (V) (A rms) min (mH) max (µH)
pri sec
pri : sec
A9784-BL_ 33
36 – 75
3.3 10.0
1.30
3.50
0.850 0.016
6:1
A0152-AL_ 35
36 – 75
5.0
7.0 1.30
2.50
0.850 0.018
4:1
B0310-AL_ 60
36 – 75
12.0
5.0 1.30
2.50
0.850 0.060
2:1
1. When ordering, please specify packaging code:
B0310-ALD
Packaging: D = 13machine ready reel. EIA-481 embossed plastic
tape (250 parts per full reel).
B = Less than full reel. In tape, but not machine ready.
To have a leader and trailer added ($25 charge), use
code letter D instead.
2. 15°C temperature rise typical at output current.
3. Inductance measured between pins 1 and 3 at 250 kHz, 0.1 Vrms, 0 Adc.
4. Operating temperature range: –40°C to +85°C.
5. Electrical specifications at 25°C.
1
0.870
22,10
max
2
3
1.320
33,53
max
6
0.105
2,67
‡
5
4
1.115 ±0.010
28,32 ±0,25
Recommended
Land Pattern
0.334 ±0.010
8,48 ±0,25
0.334 ±0.010
8,48 ±0,25
1
Pri 2
3
4
5 Sec
6
0.340
8,64
max
Dimensions are in
inches
mm
0.004 / 0,10
Weight:
9.5 – 10.9 g
Terminations: Matte tin over nickel over brass
Tape and reel:  250/13reel  56 mm tape
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg
Document 305  Revised 07/19/13
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.