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Cx Family Common Mode Chokes
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XAL7050 High-inductance Shielded Power Inductors
XGL4020 Ultra-low DCR Power Inductors

FA2636 Flyback Transformer

for Texas Instruments LM5001

RoHS compliant
  • Developed for Texas Instruments LM5001 Switch Mode Regulator
  • Isolated flyback transformer designed to operate in continuous mode
  • Designed for 16 – 36 Volt input; 250 kHz operating frequency
Buy Now:
Count Unit price
1 $2.55
175 $2.22
700 $1.93
1400 $1.68
2800 $1.44
5000 $1.32

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

. in stock, ready to ship today.
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Typical Application

Works with Texas Instruments LM5001

Input Voltage Output Power Fsw
Sec Aux
16 V 36 V 5 V , 1 A 7.5 V , 0.02 A 5 W 250 kHz


Electrical specifications at 25°C.

Part number 1 Inductance
at 0A (µH) 2
(Tolerance: ±10%)
min at   1 A (µH)
DCR max (Ω) 3 Leakage
max (µH) 4
Turns Ratio 5 Isolation
Voltage (Vrms) 6
Pri Sec Aux Pri : Sec : Aux
FA2636-AL_ 160 144 0.225 0.078 0.340 1.6 1 : 0.25 : 0.375 1500
  1. When ordering, please specify packaging code: e.g. FA2636-ALD
  2. Inductance is for the primary, measured at 250 kHz, 0.2 Vrms, 0 Adc.
  3. DCR for the secondary is per winding.
  4. Leakage inductance measured between pins 3 and 2 with all other pins shorted.
  5. Turns ratio is with the secondary windings connected in parallel.
  6. 1500 Vrms, one minute isolation from primary and auxiliary to secondary.


  • RoHS-compliant. 260°C compatible. Tin-silver over tin over nickel over phos bronze terminations.


  • 13" machine-ready reel
    EIA-481 embossed plastic tape (175 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.
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):
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332



Secondary windings to be connected
in parallel on the PC board.

Physical characteristics



Tape and Reel specification


Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation
13" (330 mm) A B C D E W P Po P1 H T fa2636orientation.gif
175 330 100 13 38,4 32,4 32 28 4 2 12,93 0,5

General specification

Core Material:
6.28 g
175 per 13″ reel Plastic tape: 32 mm wide, 0.5 mm thick, 32 mm pocket spacing, 12.98 mm pocket depth


Moisture Sensitivity Level (MSL):
1 (unlimited floor life at <30°C / 85% relative humidity)
Resistance to soldering heat:
Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles
Refer to Soldering Coilcraft Components before soldering.
PCB Washing:
Only pure water or alcohol recommended

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