Datasheet 3D Models

FL Series

CCFL Transformers

FL3209‑1L, FL3209‑2L, FL3209‑3L and FL3209‑4L are not recommended for new designs. The FL3209‑1L and FL3209‑3L have been replaced by FL3209-5L. The FL3209‑2L and FL3209‑4L have been replaced by FL3209‑6L. The replacement parts are electrically equivalent. We will continue to support existing customers of the superseded parts. (View data sheet with superseded parts.)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.

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Count	Unit price
1	$5.58
400	$5.19
800	$4.51
1600	$3.94
3200	$3.38

For high volume or non-stock items, request a quote.

Packaging

D = 13" machine-ready reel

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Specifications

Electrical specifications at 25°C.

Package 1

Part number 1	Schematic	Turns Ratio	Power (W)	Inductance typ (µH) 2	Imax sec (A)	Vrms (V) 3		Vinst max (V) 4		DCR max (Ω) 5			Isolation Voltage (Vrms) 6
Part number 1	Schematic	Pri : Sec : Fb	Power (W)	Inductance typ (µH) 2	Imax sec (A)	Pri	Sec	Pri	Sec	Pri	Sec	Fb	Isolation Voltage (Vrms) 6
FL2015-1L_	B	1 : 67 : 0.19	6.0	43	0.005	22	1600	25	2000	0.22	285	0.10	1500
FL2015-2L_	A	1 : 67 : 0.19	6.0	43	0.005	23	1600	29	2000	0.22	285	0.10	1500
FL2015-3L_	A	1 : 100 : 0.25	6.0	19	0.005	16	1600	20	2000	0.19	285	0.10	1500
FL2015-4L_	A	1 : 50 : 0.14	6.0	44	0.007	32	1600	40	2000	0.22	165	0.10	1500
FL2015-5L_	A	1 : 125 : 0.38	6.0	20	0.007	12	1600	16	2000	0.16	330	0.10	1500
FL2015-6L_	B	1 : 67 : 0.19	6.0	48	0.011	23	1600	29	2000	0.16	176	0.10	1500
FL2015-7L_	A	1 : 67 : 0.19	6.0	50	0.011	23	1600	29	2000	0.16	176	0.10	1500
FL2015-8L_	A	1 : 86 : 0.21	6.0	31	0.011	18	1600	23	2000	0.13	176	0.10	1500
FL2015-9L_	A	1 : 100 : 0.25	6.0	22	0.011	16	1600	20	2000	0.13	176	0.10	1500
FL2015-10L_	A	1 : 93 : 0.25	4.5	40	0.011	17	1600	21	2000	0.18	675	0.050	1500

Package 4

Part number 1	Schematic	Turns Ratio	Power (W)	Inductance typ (µH) 2	Imax sec (A)	Vrms (V) 3		Vinst max (V) 4		DCR max (Ω) 5		Isolation Voltage (Vrms) 6
Part number 1	Schematic	Pri : Sec	Power (W)	Inductance typ (µH) 2	Imax sec (A)	Pri	Sec	Pri	Sec	Pri	Sec	Isolation Voltage (Vrms) 6
FL2810-1L_	C	1 : 100	4.5	35	0.007	15	1500	16.5	1650	0.22	500	500

Package 5

Part number 1	Schematic	Turns Ratio	Power (W)	Inductance typ (µH) 2	Imax sec (A)	Vrms (V) 3		Vinst max (V) 4		DCR max (Ω) 5			Isolation Voltage (Vrms) 6
Part number 1	Schematic	Pri : Sec : Fb	Power (W)	Inductance typ (µH) 2	Imax sec (A)	Pri	Sec	Pri	Sec	Pri	Sec	Fb	Isolation Voltage (Vrms) 6
FL3209-5L_	C	1 : 100 : -	3.5	48	0.005	16	1600	20	2000	0.35	362	-	500
FL3209-6L_	D	1 : 93 : 0.17	3.5	40	0.005	17	1600	21	2000	0.40	800	0.080	500

Notes

When ordering, please specify packaging code: e.g. FL2810-1LD
Inductance is measured across both halves of the primary.
Vrms = continuous voltage.
Vinst = instantaneous voltage at startup.
DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
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.

Packaging:

D = 13″ machine ready reel. EIA-481 embossed plastic tape. Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge). Package 1: 400 parts per full reel. Package 4: 750 parts per full reel. Package 5: 1000 parts per full reel.
B = Less than full reel. In an effort to simplify our part numbering system, Coilcraft is eliminating the need for multiple packaging codes. When ordering, simply change the last letter of your part number from B to D.

Environmental

Environmental:

RoHS compliant

Ambient temperature range:

−40°C to +85°C

Storage temperature range:

Component: –40°C to +85°C
Tape and reel packaging: –40°C to +80°C

Failures in Time (FIT) / Mean Time Between Failures (MTBF):

See FIT/MTBF Calculations

Schematics

Physical characteristics

Package 1

Package 4

Package 5 - In-board mounting

Tape and Reel specification

	Parts per reel	Reel dimensions (mm)					Tape dimensions (mm)
	13" (330 mm)	A	B	C	D	E	W	P	Po	P1	H	T
Package 1	400	330	100	13	50,4	44,4	44	20	4	2	7,8	0,37
Package 4	750	330	100	13	50,4	44,4	44	16	4	2	6,1	0,35
Package 5	1000	330	100	13	62,4	56,4	56	12	4	2	5,77	0,35

General specification

Weight:

3.6 – 6.1 g

Packaging:

Package 1: 400/13″ reel 44 mm tape width
Package 4: 750/13″ reel 44 mm tape width
Package 5: 1000/13″ reel 56 mm tape width
For packaging data see Tape and Reel Specifications section.

Soldering/Washing

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.

Refer to Soldering Coilcraft Components before soldering.

PCB Washing:

Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info

FL Series

CCFL Transformers

Specifications

Package 1

Package 4

Package 5

Packaging:

Schematics

Physical characteristics

Package 1

Package 4

Package 5 - In-board mounting

Tape and Reel specification

General specification

Soldering/Washing

Related product series

FA2786-BL CCFL Transformer

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FL Series

CCFL Transformers

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Specifications

Package 1

Package 4

Package 5

Packaging:

Schematics

Physical characteristics

Package 1

Package 4

Package 5 - In-board mounting

Tape and Reel specification

General specification

Soldering/Washing

Related product series

FA2786-BL CCFL Transformer

Warning