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FL Series
CCFL Transformers

FL3209 parts have been improved. The new FL3209-5L and FL3209-6L are electrically equivalent to the FL3209-1L, FL3209-2L, FL3209-3L and FL3209-4L, and have an improved physical design. We will continue to support existing customers of the superseded parts. (View data sheet with superseded parts.)
  • Designed for Cold Cathode Fluorescent Lamp power supplies operating up to 100 kHz.
  • Output power from 3.5 to 6.0 Watts
  • Designs for Royer and full-bridge topologies
  • Three different SMT packages
  • Package 5 provides in-board mounting for height restricted designs
  • RoHS-compliant. 260°C compatible.

SPECIFICATIONS

Package 1 Schematic A Schematic B

Package details

Royer topology Royer topology
Isolation: Pri to sec: 1500 Vrms9
Pri to fb: 500 Vrms
Isolation:  Pri to fb: 500 Vrms9
Primary not isolated from secondary.
FL2015-1L_ B 1 : 67 1 : 0.19 6.0 43 0.005 22 1600 25.0 2000 0.220 285 0.01
FL2015-2L_ A 1 : 67 1 : 0.19 6.0 43 0.005 23 1600 29.0 2000 0.220 285 0.01
FL2015-3L_ A 1 : 100 1 : 0.25 6.0 19 0.005 16 1600 20.0 2000 0.190 285 0.01
FL2015-4L_ A 1 : 50 1 : 0.14 6.0 44 0.007 32 1600 40.0 2000 0.220 165 0.01
FL2015-5L_ A 1 : 125 1 : 0.38 6.0 20 0.007 12 1600 16.0 2000 0.160 330 0.01
FL2015-6L_ B 1 : 67 1 : 0.19 6.0 48 0.011 23 1600 29.0 2000 0.160 176 0.01
FL2015-7L_ A 1 : 67 1 : 0.19 6.0 50 0.011 23 1600 29.0 2000 0.160 176 0.01
FL2015-8L_ A 1 : 86 1 : 0.21 6.0 31 0.011 18 1600 23.0 2000 0.132 176 0.01
FL2015-9L_ A 1 : 100 1 : 0.25 6.0 22 0.011 16 1600 20.0 2000 0.132 176 0.01
FL2015-10L_ A 1 : 93 1 : 0.25 4.5 40 0.011 17 1600 21.0 2000 0.175 675 0.05
 Package 4 Schematic C  

Package details

   
Full-bridge topology
Isolation: Pri to sec: 1500 Vrms9
FL2810-1L_ C 1 : 100 4.5 35 0.007 15 1500 16.5 1650 0.220 500
 Package 5 Schematic C Schematic D

Package details

Full-bridge topology Royer topology
Isolation: Pri to sec: 500 Vrms9 Isolation: Pri to sec: 500 Vrms9
Pri to fb: 500 Vrms
FL3209-5L_ C 1 : 100 3.5 48 0.005 16 1600 20.0 2000 0.350 362
FL3209-6L_ D 1 : 93 1 : 0.17 3.5 40 0.005 17 1600 21.0 2000 0.350 800 0.08
1 When ordering, please specify packaging code: e.g. FL2810-1LD
  Packaging: D = 13″ machine ready reel. EIA-481 embossed plastic tape.
Package 1: 400 parts per full reel.
Package 4: 800 parts per full reel.
Package 5: 1000 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 Inductance is measured across both halves of the primary.
3 Vrms = continuous voltage.
4 Vinst = instantaneous voltage at startup.
5 DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
6 Ambient temperature range: –40°C to +85°C
7 Storage temperature range: Component: –40°C to +85°C
Tape and reel packaging: –40°C to +80°C
8 Resistance to soldering heat: Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between.
9 Windings to core isolation is 1500 Vrms for all parts. Isolation is tested for one minute.
For Schematic B, primary is not isolated from the secondary.
10 Electrical specifications at 25°C.
Refer to Soldering Coilcraft Components before soldering.
PCB washing: Tested with pure water or alcohol only. Other solvents

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Updated: November 04, 2014