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XGL4020 Ultra-low DCR Power Inductors

JA4309 Planar Transformer

for Texas Instruments UCC2897A

RoHS compliant
  • Specially developed for use with the TI UCC2897A Active Clamp  PWM Controller
  • Featured on PMP4804 and PMP5997 Demo Board/Reference Design
  • Low profile, high efficiency planar transformer

Buy Now:
Count Unit price
1 $17.03
200 $15.85
600 $13.80
1200 $10.73
2400 $9.20
5000 $8.44

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 UCC2897A

Output Power
3.3 V , 30 A 100 W


Electrical specifications at 25°C.

Part number 1
(Hover for schematics)
min (µH) 2
DCR max (mΩ) 3 Leakage
max (µH) 4
Turns Ratio Isolation
Voltage (Vrms) 5
Pri Sec1 Aux Pri : Sec1 : Sec2 : Aux
JA4309-AL_ 67.5 20.0 0.50 160 0.35 1 : 0.167 : 0.167 : 0.667 1500
  1. When ordering, please specify a packaging code: JA4309-ALD.
  2. Inductance measured on an Agilent/HP 4284 between pins 2 and 4 at 200 kHz, 0.1 Vrms, 0 Adc.
  3. DCR for the secondary is for each winding.
  4. Leakage inductance measured between pins 2 and 4 at 100 kHz, 0.1 Vrms, 0 Adc with all secondary pins shorted.
  5. Primary to secondary.


  • RoHS-compliant. 260°C compatible. Matte tin over nickel over brass terminations. Other terminations available at additional cost.


  • D = 13″ machine ready reel. EIA-481 embossed plastic tape (200 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):



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-(2).gif
200 330 100 13 50,4 44,4 44 32 4 2 9,35 0,37

General specification

Core Material:
11.6 g
200 per 13″ reel Plastic tape: 44 mm wide, 0.37 mm thick, 32 mm pocket spacing, 9.35 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 with pure water or alcohol only. For other solvents, see Doc787_PCB_Washing.pdf

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