Coilcraft HPH6-2400L Hexa-path magnetic Datasheet

Document 613-1
Hexa-Path Magnetics
HP1, HPH1
HP2, HPH2
HP3, HPH3
• Six 1 : 1 isolated windings that can be
connected in series or parallel
• Tightly coupled windings
• 500 Vrms, one minute isolation
between each winding
• Power range: 5 – 50 Watts as inductor
and flyback transformer; up to
150 Watts as forward transformer
• Frequency range up to 1 MHz
These off-the shelf parts can be used
to create thousands of configurations,
providing a convenient method for
designers to create custom magnetics.
By connecting the windings in series
or parallel, the Hexa-Path components can be configured as inductors,
coupled inductors and transformers for
use in virtually any application: flyback,
buck/boost, push-pull, forward, full and
half bridge, Cuk, and SEPIC.
HP4, HPH4
HP5, HPH5
Winding Layouts
HP6, HPH6
Winding Layouts
HP1, HP2, HPH1, HPH2
HP3, HP4, HP5, HP6
HPH3, HPH4, HPH5, HPH6
Outer
Outer
6
7
5
8
6
7
9
5
8
11
8
4
9
10
7
6
3
3
10
5
2
2
11
2
11
4
1
1
12
1
12
12
One 6-filar winding
Inner
Two trifilar windings
Middle
4
9
3
10
Inner
Three bifilar windings
There are six different sizes available
with five HP parts and five HPH parts
in each size. The HP offers lower DCR
and higher Irms ratings. The HPH
offers higher inductance and greater
energy storage capabilities.
Specifications subject to change without notice.
Please check our website for latest information.
Document 613-1
Revised 08/20/15
Document 613-2
Hexa-Path Magnetics
Part
Inductance2
number1
(µH)
HP1-1400L_
89.6 ±25%
HP1-0190L_
12.2 ±20%
HP1-0102L_
6.5 ±15%
HP1-0076L_
4.9 ±10%
HP1-0059L_
3.8 ±5%
HP2-1600L_
78.4 ±25%
HP2-0216L_
10.6 ±20%
HP2-0116L_
5.7 ±15%
HP2-0083L_
4.1 ±10%
HP2-0066L_
3.2 ±5%
HP3-0950L_
77.0 ±25%
HP3-0138L_
11.2 ±20%
HP3-0084L_
6.8 ±15%
HP3-0055L_
4.5 ±10%
HP3-0047L_
3.8 ±5%
HP4-1150L_
93.2 ±25%
HP4-0140L_
11.3 ±20%
HP4-0075L_
6.1 ±15%
HP4-0060L_
4.9 ±10%
HP4-0047L_
3.8 ±5%
HP5-1200L_
76.8 ±25%
HP5-0155L_
9.9 ±20%
HP5-0083L_
5.3 ±15%
HP5-0067L_
4.3 ±10%
HP5-0053L_
3.4 ±5%
HP6-2400L
86.4 ±25%
HP6-0325L
11.7 ±20%
HP6-0158L
5.69 ±15%
HP6-0121L
4.36 ±10%
HP6-0090L
3.24 ±5%
HPH1-1400L_ 202
±25%
HPH1-0190L_ 27.4 ±20%
HPH1-0102L_ 14.7 ±15%
HPH1-0076L_ 10.9 ±10%
HPH1-0059L_
8.5 ±5%
HPH2-1600L_ 160
±25%
HPH2-0216L_ 21.6 ±20%
HPH2-0116L_ 11.6 ±15%
HPH2-0083L_
8.3 ±10%
HPH2-0066L_
6.6 ±5%
HPH3-0950L_ 160
±25%
HPH3-0138L_ 23.6 ±20%
HPH3-0084L_ 14.2 ±15%
HPH3-0055L_
9.3 ±10%
HPH3-0047L_
7.94 ±5%
HPH4-1150L_ 194
±25%
HPH4-0140L_ 23.7 ±20%
HPH4-0075L_ 12.7 ±15%
HPH4-0060L_ 10.1 ±10%
HPH4-0047L_
7.94 ±5%
HPH5-1200L_ 173
±25%
HPH5-0155L_ 22.3 ±20%
HPH5-0083L_ 12.0 ±15%
HPH5-0067L_
9.65 ±10%
HPH5-0053L_
7.63 ±5%
HPH6-2400L 194
±25%
HPH6-0325L
26.3 ±20%
HPH6-0158L
12.8 ±15%
HPH6-0121L
9.8 ±10%
HPH6-0090L
7.29 ±5%
DCR
max3
(Ohms)
0.145
0.145
0.145
0.145
0.145
0.085
0.085
0.085
0.085
0.085
0.055
0.055
0.055
0.055
0.055
0.055
0.055
0.055
0.055
0.055
0.045
0.045
0.045
0.045
0.045
0.020
0.020
0.020
0.020
0.020
0.340
0.340
0.340
0.340
0.340
0.155
0.155
0.155
0.155
0.155
0.125
0.125
0.125
0.125
0.125
0.078
0.078
0.078
0.078
0.078
0.070
0.070
0.070
0.070
0.070
0.030
0.030
0.030
0.030
0.030
Volt-time Peak energy
product4
storage5 Isat6
(V-µsec)
(µJ)
(A)
23.4
Note 8
Note 8
23.4
29.8
0.440
23.4
55.1
0.820
23.4
74.7
1.10
23.4
93.8
1.40
30.8
Note 8
Note 8
30.8
79.2
0.770
30.8
184
1.60
30.8
228
2.10
30.8
252
2.50
30.4
Note 8
Note 8
30.4
59.6
0.650
30.4
111
1.14
30.4
156
1.66
30.4
173
1.90
47.3
Note 8
Note 8
47.3
142
1.00
47.3
307
2.00
47.3
386
2.50
47.3
490
3.20
62.8
Note 8
Note 8
62.8
281
1.50
62.8
562
2.90
62.8
626
3.40
62.8
946
4.70
87.9
Note 8
Note 8
87.9
332
1.50
87.9
981
3.70
87.9
1485
5.20
87.9
1833
6.70
35.1
Note 8
Note 8
35.1
31.1
0.300
35.1
60.2
0.570
35.1
99.2
0.850
35.1
107
1.00
44.0
Note 8
Note 8
44.0
82.3
0.550
44.0
177
1.10
44.0
302
1.70
44.0
333
2.00
43.9
Note 8
Note 8
43.9
52.5
0.420
43.9
98.0
0.740
43.9
169
1.20
43.9
196
1.40
68.3
Note 8
Note 8
68.3
138
0.680
68.3
314
1.40
68.3
368
1.70
68.3
529
2.30
94.2
Note 8
Note 8
94.2
248
0.940
94.2
546
1.90
94.2
700
2.40
94.2
809
2.90
131.9
Note 8
Note 8
131.9
477
1.20
131.9
1176
2.70
131.9
1783
3.80
131.9
1944
4.60
Irms7
(A)
0.74
0.74
0.74
0.74
0.74
1.13
1.13
1.13
1.13
1.13
1.73
1.73
1.73
1.73
1.73
1.88
1.88
1.88
1.88
1.88
2.25
2.25
2.25
2.25
2.25
3.50
3.50
3.50
3.50
3.50
0.62
0.62
0.62
0.62
0.62
0.83
0.83
0.83
0.83
0.83
1.13
1.13
1.13
1.13
1.13
1.65
1.65
1.65
1.65
1.65
1.95
1.95
1.95
1.95
1.95
2.90
2.90
2.90
2.90
2.90
1. Please specify termination and packaging codes:
HPH1-1400LD
Termination: L = RoHS compliant tin-silver over
tin over nickel over phos bronze.
Special order:
T = RoHS tin-silver-copper
(95.5/4/0.5) or
S = non-RoHS tin-lead (63/37).
Packaging: All but HP6 and HPH6:
D = 13″ machine-ready reel.
EIA-481 embossed plastic tape
B = Less than full reel. In tape, but
not machine ready. To have
a leader and trailer added
($25 charge), use code letter D
instead.
HP6 and HPH6: 24 per tray (no code)
2. Inductance is per winding, measured at 100 kHz,
0.1 Vrms, 0 Adc.
3. DCR is per winding, measured on Cambridge
Technology micro-ohmmeter or equivalent.
4. Volt-time product is for a single winding or multiple
windings connected in parallel. To calculate volttime product for windings connected in series, multiply the value specified in the table by the number
of windings connected in series.
5. Peak energy storage is for any combination of windings, assuming saturation current applied. See note
6 for definition of saturation current.
6. DC current at which the inductance drops 30% typ
from its value without current, based on current
applied to all six windings connected in series. For
applications where all windings are not connected
in series, use the following equation to calculate
Isat:
Isat = Isattable × 6 ÷ number of windings in series.
7. Current that causes a 40°C rise from 25°C ambient
due to self heating, tested with continuous current
flow through all windings connected in series.
Application temperature rise will depend on the operating current, duty cycle, and winding connection.
8. Part is designed exclusively for use as a forward
converter transformer and was not tested for energy
storage and saturation current.
9. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components”
before soldering
Core material Ferrite
Terminations RoHS tin-silver over tin over nickel
over phos bronze. Other terminations available at
additional cost.
Ambient temperature –40°C to +85°C with Irms
current.
Maximum part temperature +125°C
Storage temperature Component: –40°C to +125°C.
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)
Failures in Time (FIT) 38 per billion hours
Mean Time Between Failures (MTBF)
26,315,789 hours, calculated per Telcordia SR-332
PCB washing Tested to MIL-STD-202 Method 215
plus an additional aqueous wash. See Doc787_
PCB_Washing.pdf.
Specifications subject to change without notice.
Please check our website for latest information.
Document 613-2
Revised 08/20/15
Document 613-3
Hexa-Path Magnetics
HP1, HPH1
Dot indicates pin 1
1
HP1-1234L
0.079
2,00
0.394
10,00
12
XXXXY
0.028
0,70
0.063
1,60
1
12
0.079
2,00
0.512 max
13,0
0.055
1,40
0.362
9,20
Recommended
Land Pattern
0.244max
6,20
0.433
11,00
0.512max
13,0
Dimensions are in
0.004 / 0,10
Weight: 1.4 g
Packaging 500 per 13″ reel Plastic tape: 24 mm wide,
0.5 mm thick, 20 mm pocket spacing, 6.6 mm pocket depth
inches
mm
HP2, HPH2
0.098
2,50
Dot indicates pin 1
1
HP2-1234L
0.098
2,50
12
XXXXY
0.028
0,70
0.098
2,50
0.512
13,00
1
12
Recommended
Land Pattern
0.642 max
16,30
0.069
1,75
0.508
12,90
0.291max
7,40
0.575
14,60
0.661max
16,80
Dimensions are in
inches
mm
0.004 / 0,10
Weight: 2.7 – 2.8 g
Packaging 400 per 13″ reel Plastic tape: 32 mm wide,
0.4 mm thick, 20 mm pocket spacing, 7.6 mm pocket depth
Specifications subject to change without notice.
Please check our website for latest information.
Document 613-3
Revised 08/20/15
Document 613-4
Hexa-Path Magnetics
HP3, HPH3
Dot indicates pin 1
1
12
0.098
2,50
HP3-1234L
XXXXY
0.028
0,70
0.135
3,43
1
0.098
2,50
0.677 max
17,20
0.665
16,88
12
Recommended
Land Pattern
0.069
1,75
0.591
15,00
0.291max
7,40
0.004 / 0,10
0.693
17,60
0.865 max
22,00
Dimensions are in
Weight: 4.2 – 4.6 g
Packaging 200 per 13″ reel Plastic tape: 44 mm wide,
0.4 mm thick, 28 mm pocket spacing, 9.6 mm pocket depth
inches
mm
HP4, HPH4
Dot indicates pin 1
1
HP4-1234L
0.100
2,54
0.100
2,54
12
XXXXY
0.028
0,70
0.130
3,30
0.748
19,0
1
12
Recommended
Land Pattern
0.685 max
17,40
0.069
1,75
0.699
17,00
0.382 max
9,70
Dimensions are in
inches
mm
0.799
20.30
0.950 max
24,13
0.004 / 0,10
Weight: 6.8 – 7.5 g
Packaging 200 per 13″ reel Plastic tape: 44 mm wide,
0.4 mm thick, 24 mm pocket spacing, 10.56 mm pocket depth
Specifications subject to change without notice.
Please check our website for latest information.
Document 613-4
Revised 08/20/15
Document 613-5
Hexa-Path Magnetics
HP5, HPH5
Dot indicates pin 1
1
0.130
3,3
12
XXXXY
0.118
3,00
HP5-1234L
0.028
0,70
0.930
23,62
1
0.118
3,00
12
Recommended
Land Pattern
0.810 max
20,57
0.069
1,75
0.827
21,0
0.425 max
10,80
0.004 / 0,10
0.969
24,6
1.148
max
29,15
Dimensions are in
Weight: 10.6 – 11.5 g
Packaging 175 per 13″ reel Plastic tape: 44 mm wide,
0.4 mm thick, 28 mm pocket spacing, 12.0 mm pocket depth
inches
mm
HP6, HPH6
Dot indicates pin 1
0.108
2,75
1
1.10
28,2
12
0.039
1,00
HP6-1234L
XXXXY
0.148
3,75
1
0.148
3,75
1.053 max
26,75
12
Recommended
Land Pattern
0.079
2,00
1.024
26,0
0.535 max
13,6
1.173
29,80
1.285 max
32,65
Dimensions are in
inches
mm
0.004 / 0,10
Weight: 22.4 – 24.3 g
Packaging 24 per tray
Specifications subject to change without notice.
Please check our website for latest information.
Document 613-5
Revised 08/20/15
Document 613-6
Hexa-Path Magnetics
Formulas used to calculate electrical characteristics
Connecting windings in series
Inductance = Inductancetable × (number of windings)2
DCR = DCRtable × number of windings
Isat = (Isattable × 6) ÷ number of windings connected in series
Irms = Irmstable
Connecting windings in parallel
Inductance = Inductancetable
DCR = 1 ÷ [number of windings × (1 ÷ DCRtable)]
Isat = (Isattable × 6) ÷ number of windings connected in series
Irms = Irmstable × number of windings
Inductors – using multiple windings
Part
Inductance
number
(µH)
HP3-0138L_
11.2 ±20%
DCR
max
(Ohms)
0.055
Volt-time Peak energy
product
storage
Isat
(V-µsec)
(µJ)
(A)
30.4
1.656 0.650
Irms
(A)
1.73
Connecting windings in series
For higher inductance, the windings can be connected in series. As inductance
increases, energy storage and Irms remain the same, but DCR increases and
Isat decreases.
Example: Calculate new electricals for HP3-0138L with four windings (Wn)
connected in series:
Inductance = Inductancetable × Wn2
= 11.2 × 42 = 179.2 µH
1
4
12
2
9
5
11
3
8
10
6
DCR = DCRtable × Wn
= 0.055 × 4 = 0.22 Ohms
Isat = (Isattable) × 6 ÷ Wn
= (0.65 × 6) ÷ 4 = 0.975 A
7
L = 179.2 µH
DCR = 0.22
Isat = 0.975 A
Irms = 1.73 A
Irms = Irmstable = 1.73 A
Connecting windings in parallel
4
To increase current ratings, the windings (Wn) can be connected in parallel. DCR
decreases, current ratings increase, and inductance remains the same.
Example: Calculate new electricals for HP5-0083L, with three (Wn) windings
connected in parallel (equivalent to one winding in series):
Inductance = Inductancetable
= 11.2 µH
DCR = 1 ÷ [Wn × (1 ÷ DCRtable)]
= 1 ÷ [3 × (1 ÷ 0.045)] = 0.015 Ohms
1
2
3
9
5
10
11
12
8
6
7
Isat = (Isattable × 6) ÷ Wn
= (0.65 × 6) ÷ 1 = 3.9 A
L = 11.2 µH
DCR = 0.015
Isat = 3.9 A
Irms = 5.19 A
Irms = Irmstable × Wn
= 1.73 × 3 = 5.19 A
Specifications subject to change without notice.
Please check our website for latest information.
Document 613-6
Revised 08/20/15
Document 613-7
Hexa-Path Magnetics
Formulas used to calculate electrical characteristics
Connecting windings in series
Inductance = Inductancetable × (number of windings)2
DCR = DCRtable × number of windings
Isat = (Isattable × 6) ÷ number of windings connected in series
Irms = Irmstable
Connecting windings in parallel
Inductance = Inductancetable
DCR = 1 ÷ [number of windings × (1 ÷ DCRtable)]
Isat = (Isattable × 6) ÷ number of windings connected in series
Irms = Irmstable × number of windings
Create a 13 Watt 2 : 1 : 1 flyback transformer with a bias winding
Choose HPH3-0138L
Vin = 36 – 57 Vdc; Vout = 12 V, 1.1 A
Part
Inductance
number
(µH)
HPH3-0138L
23.6 ±20%
DCR
max
(Ohms)
0.125
Volt-time Peak energy
product
storage
Isat
(V-µsec)
(µJ)
(A)
43.9
1.457 0.420
Irms
(A)
1.13
Connecting primary windings in series
When primary windings (Wpri) are connected in series, inductance
increases, energy storage and Irms remain the same, but DCR increases
and Isat decreases.
1
4
12
2
9
Example: For HPH3-0138L, connect two primary windings in series:
Inductance = Inductancetable × Wpri2
= 23.6 × 22 = 94.4 µH
Pri
DCR = DCRtable × Wpri
= 0.125 × 2 = 0.25 Ohms
11
3
Isat = (Isattable × 6) ÷ Wpri
= (0.42 × 6) ÷ 2 = 1.26 A
5
6
Sec
7
8
Bias
Irms = Irmstable = 1.13 A
10
Connecting secondary windings in parallel
When secondary windings (Wsec) are connected in parallel, DCR decreases
and Irms increases.
Example: For HPH3-0083L, connect two secondary windings in parallel:
Primary:
L = 94.4 µH
DCR = 0.25
Isat = 1.26 A
Irms = 1.13 A
Secondary:
DCR = 0.0625
Irms = 2.26 A
DCR = 1 ÷ [Wsec × (1 ÷ DCRtable)]
= 1 ÷ [(2 × (1 ÷ 0.125)] = 0.0625 Ohms
Irms = Irmstable × Wsec = 1.13 × 2 = 2.26 A
Specifications subject to change without notice.
Please check our website for latest information.
Document 613-7
Revised 08/20/15
Document 613-8
Hexa-Path Magnetics
Formulas used to calculate electrical characteristics
Connecting windings in series
Inductance = Inductancetable × (number of windings)2
DCR = DCRtable × number of windings
Isat = (Isattable × 6) ÷ number of windings connected in series
Irms = Irmstable
Connecting windings in parallel
Inductance = Inductancetable
DCR = 1 ÷ [number of windings × (1 ÷ DCRtable)]
Isat = (Isattable × 6) ÷ number of windings connected in series
Irms = Irmstable × number of windings
Create a 130 Watt, 1 : 1, two switch forward converter transformer
Choose HPH6-2400L
Vin = 36 – 57 Vdc; Vout = 12 V, 10.8 A
Part
Inductance
number
(µH)
HPH6-2400L
194 ±25%
DCR
max
(Ohms)
0.030
Volt-time Peak energy
product
storage
(V-µsec)
(µJ)
131.9
N/A
Isat
(A)
N/A
Irms
(A)
2.90
Connecting primary windings in parallel
When primary windings (Wpri) are connected in parallel, DCR decreases,
Irms increases, and inductance and volt-time product remain the same.
Example: For HPH6-2400L, connect three primary windings in parallel:
Inductance = Inductancetable
= 194 µH
DCR = 1 ÷ [Wpri × (1 ÷ DCRtable)]
= 1 ÷ [(3 × (1 ÷ 0.030]) = 0.010 Ohms
VT
= VTtable
= 131.9 V-µsec
Irms = Irmstable × Wpri
= 2.90 × 3 = 8.70 A
1
2
3
4
5
6
Sec
Pri
10
11
12
7
8
9
Primary:
L = 194 µH
DCR = 0.01
Irms = 8.7 A
VT = 131.9 V-µsec
Secondary:
DCR = 0.01
Irms = 8.7 A
Connecting secondary windings in parallel
When secondary windings (Wsec) are connected in parallel, DCR decreases and Irms increases.
Example: For HPH6-2400L, connect three secondary windings in parallel:
DCR = 1 ÷ [Wsec × (1 ÷ DCRtable)]
= 1 ÷ [(3 × (1 ÷ 0.030)] = 0.010 Ohms
Irms = Irmstable × Wsec
= 2.90 × 3 = 8.70 A
Specifications subject to change without notice.
Please check our website for latest information.
Document 613-8
Revised 08/20/15
Document 613-9
Hexa-Path Magnetics
Formulas used to calculate electrical characteristics
Connecting windings in series
Inductance = Inductancetable × (number of windings)2
DCR = DCRtable × number of windings
Isat = (Isattable × 6) ÷ number of windings connected in series
Irms = Irmstable
Connecting windings in parallel
Inductance = Inductancetable
DCR = 1 ÷ [number of windings × (1 ÷ DCRtable)]
Isat = (Isattable × 6) ÷ number of windings connected in series
Irms = Irmstable × number of windings
Create a 100 Watt, 1 : 2, half bridge forward converter transformer with center tapped secondary
Choose HP6-2400L
Vin = 36 – 57 Vdc; Vout = 24 V, 4.2 A
Part
Inductance
number
(µH)
HPH6-2400L
194 ±25%
DCR
max
(Ohms)
0.030
Volt-time Peak energy
product
storage
(V-µsec)
(µJ)
131.9
N/A
Isat
(A)
N/A
Irms
(A)
2.90
Connecting primary windings in parallel
3
When primary windings (Wpri) are connected in parallel, DCR decreases,
current ratings increase, and inductance and volt-time product remain the
same.
10
4
1
2
Example: For HPH-2400L, connect two primary windings in parallel:
Inductance = Inductancetable
= 194 µH
VT
9
5
Pri
DCR = 1 ÷ [Wpri × (1 ÷ DCRtable)]
= 1 ÷ [(2 × (1 ÷ 0.030)] = 0.015 Ohms
Sec A
11
12
8
6
= VTtable
= 131.9 V-µsec
Irms = Irmstable × Wpri
= 2.90 × 2 = 5.8 A
Sec B
7
Connecting secondary windings in series
When secondary windings (Wsec) are connected in series, Irms remains
the same, but DCR increases.
Primary:
L = 194 µH
DCR = 0.015
Irms = 5.8 A
VT = 131.9 V-µsec
Each half secondary;
Sec A (3-9), Sec B (5-7):
DCR = 0.06
Irms = 2.9 A
Example: For HP6-2400L, connect four secondary windings in series,
creating a center tap at pins 9 and 5. For each half of the secondary:
DCR = DCRtable × Wsec
= 0.030 × 2 = 0.060 Ohms
Irms = Irmstable
= 2.9 A
Specifications subject to change without notice.
Please check our website for latest information.
Document 613-9
Revised 08/20/15
Document 613-10
Hexa-Path Magnetics
Formulas used to calculate electrical characteristics
Connecting windings in series
Inductance = Inductancetable × (number of windings)2
DCR = DCRtable × number of windings
Isat = (Isattable × 6) ÷ number of windings connected in series
Irms = Irmstable
Connecting windings in parallel
Inductance = Inductancetable
DCR = 1 ÷ [number of windings × (1 ÷ DCRtable)]
Isat = (Isattable × 6) ÷ number of windings connected in series
Irms = Irmstable × number of windings
Create a 1 : 1 gate drive transformer
Choose HP1-1400L
Part
Inductance
number
(µH)
HP1-1400L
89.6 ±25%
DCR
max
(Ohms)
0.130
Volt-time Peak energy
product
storage
(V-µsec)
(µJ)
23.4
N/A
Isat
(A)
N/A
Irms
(A)
0.74
Connecting primary windings in series
When primary windings (Wpri) are connected in series, inductance and
volt-time product increase, energy storage and Irms remain the same,
but DCR increases.
Example: For HPH1-1400L, connect three primary windings in series:
Wpri2
4
10
1
5
7
11
Pri
Sec
Inductance = Inductancetable ×
= 89.6 × 32 = 806.4 µH
2
6
8
12
DCR = DCRtable × Wpri
= 0.130 × 3 = 0.39 Ohms
3
9
VT
= VTtable × Wpri
= 70.2 V-µsec
Irms = Irmstable
= 0.74
Connecting secondary windings in series
Primary:
L = 806.4 µH
DCR = 0.39
Irms = 0.74 A
VT = 70.2 V-µsec
Secondary:
DCR = 0.39
Irms = 0.74 A
When secondary windings (Wsec) are connected in series, Irms remains
the same, but DCR increases.
Example: For HP1-1400L, connect three secondary windings in series:
DCR = DCRtable × Wsec
= 0.130 × 3 = 0.39 Ohms
Irms = Irmstable
= 0.74
Specifications subject to change without notice.
Please check our website for latest information.
Document 613-10
Revised 08/20/15
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