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Cx Family Common Mode Chokes
0402CT Low Profile Chip Inductors
XAL7050 High-inductance Shielded Power Inductors
XGL4020 Ultra-low DCR Power Inductors

A9786-AL Planar Magnetics

for TI LM5041

RoHS compliant
  • Specially developed for use with the Texas Instruments LM5041 Cascaded PWM Controller
  • Low profile, high efficiency planar transformer
  • Planar output chokeinductor

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Electrical specifications at 25°C.


Part number 1
(Hover for schematics)
Power (W) Input Voltage (V) Inductance
min (mH) 2
DCR max (mΩ) 3 Leakage
max (µH) 4
Voltage (Vrms)
Output (V, A)
Pri Sec Aux
A9786-AL_ 150 36 75 1.25 62.5 0.91 200 0.90 1100 2.5 V , 60 A

Output Inductor

Part number 5 Inductance (µH) 6 DCR max (Ω) Isolation
Voltage (V) 7
Isat (A) 8 Irms (A) 9
A9787-AL_   57 0.017 1100 8.1 12.0
  1. When ordering, please specify packaging code: e.g.A9786-ALD
  2. Inductance measured on an Agilent/HP 4284 between pins 1 and 3 at 250 kHz, 0.1 Vrms, 0 Adc.
  3. DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
  4. Leakage inductance measured between pins 1 and 3 at 100 kHz, 0.1Vrms, 0 Adc with all secondary pins shorted.
  5. When ordering, please specify packaging code: e.g. A9787-ALD.
  6. Inductance measured on an Agilent/HP 4284 at 250 kHz, 0.1 Vrms.
  7. Isolation measured from pins 1,2 to the core.
  8. DC current at which inductance drops 10% (typ) from its value without current. Details
  9. . Current that causes a 40°C rise from 25°C ambient. Details


  • RoHS-compliant. 260°C compatible. Matte tin over nickel over brass terminations.


  • D = 13″ machine-ready reel. EIA-481 embossed plastic tape (125 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
  • 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.
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):

Performance curves

Inductance vs Current (A9787-A Planar Output Inductor)

Inductance vs Frequency (A9787-A Planar Output Inductor)


Planar Transformer                                                      Planar Output Inductor


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 lm5041orientation.gif
125 330 100 13 62,4 56,4 56 40 4 2 11,6 0,42  

General specification

33.4 g
125/13″ reel 56 mm tape


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. Other solvents

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