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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

JA4590-AL Series

Coupled Power Inductor

RoHS compliant

Coilcraft's JA4590-AL Series of 1:1 coupled power inductors feature magnetic shielding for compact packaging and tight winding-to-winding coupling. They are ideal for Flyback, SEPIC, Ćuk, Zeta and other applications.

  • Designed for Texas Instruments TPS40210 Current Mode Boost Controller
  • Also great for Flyback, SEPIC, Ćuk, Zeta and other applications
  • Magnetic shielding allows high-density mounting
  • Tight winding coupling

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Count Unit price
1 $4.08
175 $3.55
350 $2.67
700 $1.59
1400 $1.25
2800 $1.08
5250 $0.99

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

. in stock, ready to ship today.
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Electrical specifications at 25°C.

Part number 1 Inductance (µH) 2
(Tolerance: ±10%)
DCR max (Ω) 3 SRF typ (MHz) 4 Leakage
Inductance (nH) 5
Turns Ratio Isat (A) 6 Irms (A)
both windings 7 one winding 8
JA4590-AL_ 22 0.028 8.0 300 1 : 1 7.8 4.2 5.9
  1. When ordering, please specify packaging code: e.g. JA4590-ALC
  2. Inductance shown for each winding, measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A LCR meter or equivalent. When leads are connected in parallel, inductance is the same value. When leads are connected in series, inductance is four times the value.
  3. DCR is for each winding. When leads are connected in parallel, DCR is half the value. When leads are connected in series, DCR is twice the value.
  4. SRF measured using an Agilent/HP 4191A or equivalent. When leads are connected in parallel, SRF is the same value.
  5. Leakage inductance is for one winding.
  6. DC current, at which the inductance drops 20% (typ) from its value without current. It is the sum of the current flowing in both windings.
  7. Equal current when applied to each winding simultaneously that causes a 40°C temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings.
  8. Maximum current when applied to one winding that causes a 40°C temperature rise from 25°C ambient.


  • RoHS compliant matte tin over nickel over phos bronze.


  • D = 13″ machine-ready reel. EIA-481 embossed plastic tape (175 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 with Irms current, +85°C to +125°C with derated current
Storage temperature range:
Component: –40°C to +125°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


175 330 100 13 38,4 32,4 32 24 4 2 14,3 0,5

General specification

Core Material:
10.8 g
175/13″ reel; Plastic tape: 32 mm wide, 0.5 mm thick, 24 mm pocket spacing, 14.3 mm pocket depth
Winding to Winding Isolation:
500 Vrms, one minute


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. More info

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