Document 776-1
Dual Inductors for Class-D
• Dual inductors for use in Class-D output filters
• A single shielded package contains both coils.
• Very low magnetic coupling
AEC
+
Q200 125°C
• AEC-Q200 Grade 1 (−40°C to +125°C)
• SMT (HA4158-EL) and through-hole (JA4575-BL) versions
• HA4158-BLandJA4575-ALnotrecommendedfornewdesigns
• Designed for low distortion and the best sound quality
Core material Ferrite
Terminations RoHS compliant tin-silver (96.5/3.5) over copper.
Weight 5.0 g
Ambient temperature –40°C to +125°C with Irms current
Maximum part temperature +165°C (ambient + temp rise)
Storage temperature Component: –40°C to +165°C.
Tape and reel packaging: –40°C to +80°C
Resistance to soldering heat Max three 40 second reflows at
+260°C, parts cooled to room temperature between cycles
Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C /
85% relative humidity)
PCB washing Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
Maximum power (W)2
Isat (A)7
Irms (A)8
DCR
max4
(Ohms)
SRF
typ5
(MHz)
Part
2 Ohm
load
4 Ohm
load
Inductance3
10% (µH)
THD+N6 10% 20% 30%
20°C 40°C
number1
(%)
drop drop drop
rise
rise
HA4158-EL_
JA4575-BL_
48
48
68
68
10.0
10.0
0.013
0.013
21.5
21.5
<0.1
<0.1
6.0
6.0
6.7
6.7
7.1
7.1
4.0
4.0
6.0
6.0
1. When ordering, please specify packaging code:
HA4158-ELD
Packaging: D = 13″ machine-ready reel. EIA-481 embossed plastic
tape. Quantities less than full reel available: in tape
(not machine ready) or with leader and trailer ($25
charge).
Output Power
Temperature
Power rise from 25°C
Test
condition
typ (W)
(°C)
Load THD+N
22
26
10.0
10.2
4 Ohm
4 Ohm
1%
10%
1 kHz, 14.4 Vdc
1 kHz, 14.4 Vdc
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.
46
56
21.8
22.8
4 Ohm
4 Ohm
1%
10%
1 kHz, 21 Vdc
1 kHz, 21 Vdc
2. Maximum power into specified load that causes less than a 40°C
temperature rise. Measured at 1 kHz with a 14.4 Vdc supply for the
2-Ohm load and a 21 Vdc supply for the 4-Ohm load. Refer to Output
Power table for typical output conditions. Tested using the TAS5414A
Evaluation Board from Texas Instruments.
36
44
27.8
25.1
2 Ohm
2 Ohm
1%
10%
1 kHz, 14.4 Vdc
1 kHz, 14.4 Vdc
3. Inductance measured at 100 kHz, 1.0 Vrms, 0 Adc using an Agilent/
HP 4284A impedance analyzer.
4. DCR is for each winding, measured on a micro-ohmmeter.
5. SRF measured using Agilent/HP 8753D network analyzer.
6. Total harmonic distortion + noise measured at 20 W into a 2-Ohm or
4-Ohm load at 1 kHz with a 21 Vdc supply.
7. DC current (typical) at which the inductance drops the specified
amount from its value without current.
8. Current applied to both windings at the same time that causes the
specified temperature rise from 25°C ambient. This information is for
reference only and does not represent absolute maximum ratings.
9. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Document 776-1 Revised 04/11/23
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2023
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.
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