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XGL4020 Ultra-low DCR Power Inductors

B0392-AL Planar Transformer

for Texas Instruments UCC3580

RoHS compliant
  • Specially developed for use with the Texas Instruments UCC3580 PWM Controllers
  • Low profile, high efficiency planar transformer
  • Planar output choke inductor

Buy Now:
Count Unit price
1 $11.89
1000 $10.16
5000 $7.99

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 UCC3580

Output Power Fsw
3.3 V , 30 A 100 W 300 kHz


Electrical specifications at 25°C.

Planar Transformer

Part number 1
(Hover for schematics)
min (µH) 2
DCR max (mΩ) 3 Leakage
max (µH) 4
Turns Ratio Isolation
Voltage (Vrms)
Pri Sec Pri : Sec
B0392-AL_ 65 13.5 0.4 0.22 1 : 0.167 1500

Planar Output Inductor

Part number 5 Inductance (µH) 6 Rated current (Adc) DCR max (Ω) 3 Isolation
Voltage (V) 8
Isat (A) 9 Irms (A) 10
Main Aux
B0434-AL_   2.0 30.0 0.0019 1.5 1100 38.0 36.0
  1. When ordering, please specify packaging code: e.g. B0392-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, 0.1 Vrms, 0 Adc with secondary pins shorted.
  5. When ordering, please specify packaging code: e.g. B0434-ALD
  6. Inductance measured on an Agilent/HP 4284 between pins 3 and 4 at 250 kHz, 0.1 Vrms.
  7. DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
  8. Isolation measured from pins 1 to 3.
  9. Isat: DC current at which inductance drops 10% (typ) from its value without current. Details
  10. Irms: Current that causes a 40°C rise from 25°C ambient. Details


  • RoHS-compliant. 260°C compatible. Tin silver over nickel over brass terminations.


  • D = 13″ machine ready reel. EIA-481 embossed plastic tape (200 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 (B0434-A Output Inductor)

Inductance vs Frequency (B0434-A Output Inductor)


         B0392-AL                                      B0434-AL
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 part_or_v.gif
200 330 100 13 50,4 44,4 44 32 4 2 9,4 0,37

General specification

Core Material:
11.1 g
200 per 13″ reel Plastic tape: 44 mm wide, 0.37 mm thick, 32 mm pocket spacing, 9.4 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:
Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.