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© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft appr
oval.
Specification subject to change without notice.
Please check web site for latest infor
mation.
Flyback Transformers
Document 374
Document 374 Revised 12/09/09
Leakage Output Output Output Isolation
Part Inductance2 DCR max inductance3 Turns ratio power voltage current voltage4
number1 ±10% (mH) (Ohms) max (µH) pri
:
sec
:
aux (W) (V) (A) (Vrms)
A9619-CL 3.2 1.74 (pri) 60 1
:
0.10
:
0.14 6 12 0.58 2000
0.040 (sec)
0.278 (aux)
B0570-BL 3.4 2.57 (pri) 95 1
:
0.06
:
0.08 12 12 1.25 3000
0.038 (sec)
0.285 (aux)
0.950
24,13
0.150 ±0.030
3,81 ±0,76
5
1
6
10
Bottom view
Recommended
PC Board Layout
1
0.200
5,08
0.150
3,81
0.620
15,75
0.620
15,75
dia
0.044
1,12
(7 places)
1.100
27,94 max
1.100
27,94 max
max
For ON Semiconductor
NCP101X
6
9
10
7
1
5
Auxiliary
Primary Secondary
• Developed for the ON Semiconductor NCP101X Self-Supplied
Monolithic Switcher
• A9619-CL provides 7 Watts output for 120 Vac applications
B0570-BL provides 15 Watts for 230 Vac applications
Coilcraft can also custom engineer a transformer to meet
your specific requirements. For free evaluation samples,
contact Coilcraft or visit www.coilcraft.com.
1. When ordering, please specify termination code:
B0570-BL
Termination: L = RoHS compliant tin-silver over tin over nickel over
phos bronze. Special order:
T = RoHS tin-silver-copper (95.5/4/0.5) or
S = non-RoHS tin-lead (63/37).
2. Inductance is for the primary, measured at 10 kHz, 0.1 Vrms, 0 Adc.
3. Leakage inductance tested at 100 kHz, 0.1 Vrms
4. Isolation tested between primary and secondary and between primary
and auxiliary windings for one minute.
5. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Core material Ferrite
Terminations RoHS tin-silver over tin over copper. Other terminations
available at additional cost.
Weight 15.8 – 16.3 g
Ambient temperature –40°C to +85°C
Storage temperature Component: –40°C to +85°C.
Tray packaging: –40°C to +80°C
Resistance to soldering heat Max three 40 second reflows at
+260°C, parts cooled to room temperature between cycles
Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C /
85% relative humidity)
Failures in Time (FIT) / Mean Time Between Failures (MTBF)
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332
Packaging 81 parts per tray
PCB washing Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf.
Dimensions are in inches
mm
