Document 348
for ON Semiconductor
Flyback Transformer NCP1030
This flyback transformer was developed specifically for ON
Semiconductor’s isolated 2 W Bias Supply using the
NCP1030, and is specified in Application Note AND8119/D.
Itisidealfor48 Vtelecomand42 Vautomotiveapplications.
minimize leakage inductance. It is designed for 35–76 V
input. Isolation is 500 Vrms between the primary and
secondary windings and between windings and the core.
To request free evaluation samples, contact Coilcraft or
It features interleaved primary and secondary windings to
visit www.coilcraft.com.
Inductance
at 0 Adc2
±10% (µH)
Inductance
at Ipk3
min (µH)
Leakage
Inductance4
max (µH)
Ipk3
(mA)
Turns ratio
pri : sec (7-8) pri : sec (5-6)
DCR max
(Ohms)
Part number1
B0226-EL_
120
102
0.655 (pins 1
0.820 (pins 2
0.248 (pins 7
0.248 (pins 5
–
–
–
–
4)
3)
8)
6)
0.95
1:0.36
1 :0.36
400
1. When ordering, specify a packaging code:
B0226-ELD
Packaging: D = 13″ machine ready reel. EIA-481 embossed plastic
tape (600 per full reel).
Dot indicates pin 1
1
0.063
1,60
0.400
10,16
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.
max
0.079
2,00
2. Inductance is for the primary, measured at 275 kHz, 0.5 Vrms.
3. Peak primary current drawn at minimum input voltage.
4. Leakage inductance is for the primary winding with the secondary
windings shorted.
0.475
max
12,07
5. Operating temperature range -40°C to +85°C.
6. Electrical specifications at 25°C.
0.235
5,97
max
0.004/0,10
1
2
0.067
1,70
0.358
9,09
8
Sec 1
12 V, 167 mA
Primary
35 V – 76 V
1
8
4
5
6
3
3
4
7
6
0.079
2,00
7
8
2
1
0.063
1,60
Sec 2
Recommended
Land Pattern
12 V, 3 mA
5
Weight:
0.96 g
Terminations: Tin-silver over nickel over tin over phos bronze
Tape and reel: 600/13″ reel 24 mm tape width
For packaging data see Tape and Reel Specifications section.
Specifications subject to change without notice.
Please check our website for latest information.
Document348 Revised04/16/09
© Coilcraft, Inc. 2009