Technical Data 4303 Effective October 2015
Supersedes March 2007
Product description
• Transformers for use in CCFL power supplies,
available in through-hole and surface mount
recess or gull wing versions, incorporating
floating or fixed secondary technology
• Supply output current up to 30 milli-Amps
• Frequency range from 40 to 80 KHz
• Deliver output power from 2.5 to 14 Watts
• Operate in royer and other topologies
• Ferrite core material
Applications
• CCFL power supplies
Environmental data
• Storage temperature range: -40°C to +85°C
• Operating ambient temperature range:
0°C to +70°C
Packaging
• Supplied in bulk packaging
CCFL Transformers
Cold cathode fluorescent lamp inverter transformers
Pb
Discontinued, Effective
August 31, 2017 or until
inventory is depleted.
No recommended
replacement available
2
Technical Data 4303
Effective October 2015
CCFL Transformers
Cold cathode uorescent lamp inverter transformers
www.eaton.com/elx
Product specifications
Part number
Schematic
diagram
Pout
watts Lp uH1
DCRp
ohms
max
DCRs
ohms
max TR
Ns/Np
Vpri
volts
max2
Vsec
volts
max2
Is
max
A rms Vpri
abnormal3Vsec
abnormal3Mechanical
dimensions PCB pad
layout
2.5 Watt Versions
CTX110652-R A 2.5 43 0.220 285 67 20 1340 .005 30 2000 A A
CTX110655-R B 2.5 43 0.220 285 67 20 1340 .005 30 2000 A A
CTX110657-R B 2.5 26 0.190 285 86 15 1340 .005 23 2000 A A
CTX110659-R B 2.5 19 0.220 285 100 13 1340 .005 23 2000 A A
CTX210652-R A 2.5 43 0.220 285 67 20 1340 .005 30 2000 B B
CTX210655-R B 2.5 43 0.220 285 67 20 1340 .005 30 2000 B B
CTX210657-R B 2.5 26 0.212 285 86 15 1340 .005 23 2000 B B
CTX210659-R B 2.5 19 0.190 285 100 13 1340 .005 23 2000 B B
2.5 Watt Versions
CTX210403-R C 4 44 0.220 165 50 26 1340 .007 40 2000 C C
CTX210407-R C 4 27 0.160 220 86 15 1340 .007 23 2000 C C
CTX210409-R C 4 20 0.160 220 100 13 1340 .007 23 2000 C C
CTX210411-R C 4 20 0.160 330 125 10 1340 .007 16 2000 C C
CTX310403-R C 4 44 0.220 165 50 26 1340 .007 40 2000 D D
CTX310407-R C 4 27 0.160 220 86 15 1340 .007 23 2000 D D
CTX310409-R C 4 20 0.160 220 100 13 1340 .007 23 2000 D D
CTX310411-R C 4 20 0.160 330 125 10 1340 .007 16 2000 D D
6 Watt Versions
CTX110600-R D 6 44 0.160 176 67 20 1340 .011 30 2000 E E
CTX110603-R C 6 44 0.160 132 50 26 1340 .011 40 2000 E E
CTX110605-R C 6 44 0.160 176 67 20 1340 .011 30 2000 E E
CTX110607-R C 6 27 0.132 176 86 15 1340 .011 23 2000 E E
CTX110609-R C 6 20 0.132 176 100 13 1340 .011 23 2000 E E
CTX110611-R C 6 20 0.132 291 125 11 1340 .011 16 2000 E E
CTX210600-R D 6 44 0.160 176 67 20 1340 .011 30 2000 F C
CTX210603-R C 6 44 0.160 132 50 26 1340 .011 40 2000 F C
CTX210605-R C 6 44 0.160 176 67 20 1340 .011 30 2000 F C
CTX210607-R C 6 27 0.132 176 86 15 1340 .011 23 2000 F C
CTX210609-R C 6 20 0.132 176 100 13 1340 .011 23 2000 F C
CTX210611-R C 6 20 0.132 291 125 11 1340 .011 16 2000 F C
14 Watt Versions
CTX410805-R E 14 24 0.030 262 67 20 1340 .030 30 2000 G F
CTX410807-R E 14 16 0.024 272 86 15 1340 .030 23 2000 G F
CTX410809-R E 14 16 0.024 314 100 13 1340 .030 23 2000 G F
1. Inductances are nominal values
2. Continuous RMS Voltage
3. Maximum Instantaneous RMS Voltage
Discontinued, Effective
August 31, 2017 or until
inventory is depleted.
No recommended
replacement available
3
Technical Data 4303
Effective October 2015
CCFL Transformers
Cold cathode uorescent lamp inverter transformers
www.eaton.com/elx
Dimensions–mm
2.5 Watt Versions
Schematic A
Pad Layout A
Mechanical A Mechanical B
Schematic B
TOP VIEW
TOP VIEW
Pad Layout B
Schematic C
Pad Layout CPad Layout D
MD
lacinahceMC lacinahce
TOP VIEW
TOP VIEW
4 Watt Versions
Discontinued, Effective
August 31, 2017 or until
inventory is depleted.
No recommended
replacement available
4
Technical Data 4303
Effective October 2015
CCFL Transformers
Cold cathode uorescent lamp inverter transformers
www.eaton.com/elx
Dimensions–mm
6 Watt Versions
14 Watt Versions
Schematic D
Pad Layout E
Schematic C
Pad Layout CMechanical E Mechanical F
TOP VIEW TOP VIEW
Schematic EPad Layout F Mechanical G
BOTTOM VIEW
Discontinued, Effective
August 31, 2017 or until
inventory is depleted.
No recommended
replacement available
5
Technical Data 4303
Effective October 2015
CCFL Transformers
Cold cathode uorescent lamp inverter transformers
www.eaton.com/elx
Through-hole wave solder profile
Reflow soldering not recommended
Reference EN 61760-1:2006
Profile Feature Standard SnPb Solder Lead (Pb) Free Solder
Preheat • Temperature min. (Tsmin) 100°C 100°C
• Temperature typ. (Tstyp) 120°C 120°C
• Temperature max. (Tsmax) 130°C 130°C
• Time (Tsmin to Tsmax) (ts)70 seconds 70 seconds
D preheat to max Temperature 150°C max. 150°C max.
Peak temperature (TP)* 235°C – 260°C 250°C – 260°C
Time at peak temperature (tp)10 seconds max
5 seconds max each wave
10 seconds max
5 seconds max each wave
Ramp-down rate ~ 2 K/s min
~3.5 K/s typ
~5 K/s max
~ 2 K/s min
~3.5 K/s typ
~5 K/s max
Time 25°C to 25°C 4 minutes 4 minutes
Manual solder
350°C, 4-5 seconds. (by soldering iron), generally manual, hand soldering is not recommended.
Temperature
Time
T
smin
Tsmax
Tstyp
Tp
tp
First Wave Second Wave
Preheat area Cool down area
Discontinued, Effective
August 31, 2017 or until
inventory is depleted.
No recommended
replacement available
Eaton
Electronics Division
1000 Eaton Boulevard
Cleveland, OH 44122
United States
www.eaton.com/elx
© 2015 Eaton
All Rights Reserved
Printed in USA
Publication No. PM-4303
October 2015
Eaton is a registered trademark.
All other trademarks are property
of their respective owners.
CCFL Transformers
Cold cathode uorescent lamp inverter transformers
Technical Data 4303
Effective October 2015
Life Support Policy: Eaton does not authorize the use of any of its products for use in life support devices or systems without the express written
approval of an officer of the Company. Life support systems are devices which support or sustain life, and whose failure to perform, when properly
used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user.
Eaton reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Eaton also
reserves the right to change or update, without notice, any technical information contained in this bulletin.
Temperature
t
tP
ts
TC -5°C
Time 25°C to Peak Time
25
°C
Tsmin
Tsmax
TL
TP
Preheat
A
Max. Ramp Up Rate = 3°C/s
Max. Ramp Down Rate = 6°C/s
Surface mount solder reflow profile
Wave and manual soldering not recommended
Reference JDEC J-STD-020D
Profile Feature Standard SnPb Solder Lead (Pb) Free Solder
Preheat and Soak • Temperature min. (Tsmin) 100°C 150°C
• Temperature max. (Tsmax) 150°C 200°C
• Time (Tsmin to Tsmax) (ts)60-120 Seconds 60-120 Seconds
Average ramp up rate Tsmax to Tp3°C/ Second Max. 3°C/ Second Max.
Liquidous temperature (Tl)
Time at liquidous (tL)
183°C
60-150 Seconds
217°C
60-150 Seconds
Peak package body temperature (TP)* Table 1 Table 2
Time (tp)** within 5 °C of the specified classification temperature (Tc)20 Seconds** 30 Seconds**
Average ramp-down rate (Tp to Tsmax)6°C/ Second Max. 6°C/ Second Max.
Time 25°C to Peak Temperature 6 Minutes Max. 8 Minutes Max.
* Tolerance for peak profile temperature (Tp) is defined as a supplier minimum and a user maximum.
** Tolerance for time at peak profile temperature (tp) is defined as a supplier minimum and a user maximum.
Table 1 - Standard SnPb Solder (Tc)
Package
Thickness
Volume
mm3
<350
Volume
mm3
≥350
<2.5mm) 235°C 220°C
≥2.5mm 220°C 220°C
Table 2 - Lead (Pb) Free Solder (Tc)
Package
Thickness
Volume
mm3
<350
Volume
mm3
350 - 2000
Volume
mm3
>2000
<1.6mm 260°C 260°C 260°C
1.6 – 2.5mm 260°C 250°C 245°C
>2.5mm 250°C 245°C 245°C
Discontinued, Effective
August 31, 2017 or until
inventory is depleted.
No recommended
replacement available
