TRANSFORMERS
April 2014
Universal Multiwinding Transformers
PCA type
PCA series
PCA11/5ER
PCA14.5/6ER
PCA15EFD
PCA20EFD
(2/13)
001-01 / 20140415 / trans_d-d-con_pca_en.fm
TRANSFORMERS
REMINDERS FOR USING THESE PRODUCTS
Before using these products, be sure to request the delivery specifications.
SAFETY REMINDERS
Please pay sufficient attention to the warnings for safe designing when using these products.
The storage period is less than 12 months. Be sure to follow the storage conditions (Temperature: 5 to 40°C, Humidity: 10 to 75% RH
or less).
If the storage period elapses, the soldering of the terminal electrodes may deteriorate.
Do not use or store in locations where there are conditions such as gas corrosion (salt, acid, alkali, etc.).
Before soldering, be sure to preheat components.
The preheating temperature should be set so that the temperature difference between the solder temperature and chip temperature
does not exceed 150°C.
Soldering corrections after mounting should be within the range of the conditions determined in the specifications.
If overheated, a short circuit, performance deterioration, or lifespan shortening may occur.
When embedding a printed circuit board where a chip is mounted to a set, be sure that residual stress is not given to the chip due to
the overall distortion of the printed circuit board and partial distortion such as at screw tightening portions.
Self heating (temperature increase) occurs when the power is turned ON, so the tolerance should be sufficient for the set thermal
design.
Carefully lay out the coil for the circuit board design of the non-magnetic shield type.
A malfunction may occur due to magnetic interference.
Use a wrist band to discharge static electricity in your body through the grounding wire.
Do not expose the products to magnets or magnetic fields.
Do not use for a purpose outside of the contents regulated in the delivery specifications.
The products listed on this catalog are intended for use in general electronic equipment (AV equipment, telecommunications
equipment, home appliances, amusement equipment, computer equipment, personal equipment, office equipment, measurement
equipment, industrial robots) under a normal operation and use condition.
The products are not designed or warranted to meet the requirements of the applications listed below, whose performance and/or
quality require a more stringent level of safety or reliability, or whose failure, malfunction or trouble could cause serious damage to
society, person or property.
If you intend to use the products in the applications listed below or if you have special requirements exceeding the range or conditions
set forth in the each catalog, please contact us.
(1) Aerospace/Aviation equipment
(2) Transportation equipment (cars, electric trains, ships, etc.)
(3) Medical equipment
(4) Power-generation control equipment
(5) Atomic energy-related equipment
(6) Seabed equipment
(7) Transportation control equipment
(8) Public information-processing equipment
(9) Military equipment
(10) Electric heating apparatus, burning equipment
(11) Disaster prevention/crime prevention equipment
(12) Safety equipment
(13) Other applications that are not considered general-purpose
applications
When designing your equipment even for general-purpose applications, you are kindly requested to take into consideration securing
protection circuit/device or providing backup circuits in your equipment.
REMINDERS
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001-01 / 20140415 / trans_d-d-con_pca_en.fm
• All specifications are subject to change without notice.
TRANSFORMERS
Universal Multiwinding Transformers
PCA Type
FEATURES
Multi-functional DC/DC transformers with each type provided with six cores, available in various inductance values.
Supporting various turn ratios and inductance values when coils are arbitrarily connected externally, and can be used for many different
purposes.
Can be used as inductors (coupled, step-down, step-up, resonance) or DC/DC transformers (flyback, forward, push-pull).
Supporting automatic winding and achieves high quality and stable production.
Available in four types.
APPLICATION
POL(Point of Load) DC/DC converters, digital home appliances, initial DC/DC power circuit check
PART NUMBER CONSTRUCTION
OPERATING TEMPERATURE RANGE, PACKAGE QUANTITY, PRODUCT WEIGHT
Operating temperature range includes self-temperature rise.
The Storage temperature range is for after the circuit board is mounted.
Overview of the PCA Series
PCA 11/5 ER - U 01 S 002
Series name Core shape Internal code
Type
Temperature range
Package quantity Individual weight
Operating
temperature
Storage
temperature
（°C） （°C） （pieces/reel） （g）
PCA11/5ER –40 to +85 –40 to +85 1500 1.5
PCA14.5/6ER –40 to +85 –40 to +85 600 2.9
PCA15EFD –40 to +85 –40 to +85 500 6.0
PCA20EFD –40 to +85 –40 to +85 400 13.5
Product compatible with RoHS directive
Compatible with lead-free solders
RoHS Directive Compliant Product: See the following for more details related to RoHS Directive compliant products. http://www.tdk.co.jp/rohs/
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• All specifications are subject to change without notice.
TRANSFORMERS
Overview of the PCA Series
RECOMMENDED REFLOW PROFILE
Preheating Soldering Peak
Temp. Time Temp. Time Temp. Time
T1 T2 t1 T3 t2 T4 t3
150°C 180°C 60 to 120s 230°C 10 to 30s 245°C 5s max.
Natural
cooling
t3
t1
Preheating
t2
Soldering
T3 T3
T4
T2
T1
t: Time
Peak
T: Temperature
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001-01 / 20140415 / trans_d-d-con_pca_en.fm
• All specifications are subject to change without notice.
TRANSFORMERS
PCA series
PCA11/5ER Type
SHAPE & DIMENSIONS
RECOMMENDED LAND PATTERN CIRCUIT DIAGRAM
6.0ref.
9.2ref.
13.0max.
(0.6)
(0.25)0.7ref.
6.5max. 2.0ref.
13.6max.
Dimensions in mm
1
2
3
4
5
6
12
11
10
9
8
7
(9.6)
(13.6)
(1.4)
(2.0)
Suggested PCB layout
Dimensions in mm
4
1
10
7
5
2
11
8
6
3
12
9
1:1:1:1:1:1
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001-01 / 20140415 / trans_d-d-con_pca_en.fm
• All specifications are subject to change without notice.
TRANSFORMERS
PCA series PCA11/5ER Type
ELECTRICAL CHARACTERISTICS
CHARACTERISTICS SPECIFICATION TABLE
Electrical Specifications @23°C
1 Idc 1 = Depend on inductance saturation. (30% below the initial value).
2 Idc 2 = Depend on self temperature rise. (Temperature increase of 40°C).
3 Parallel = 6 coils connected in parallel.
4 Series = 6 coils connected in series.
Part No.
Inductance
(μH)
@10KHz,0.1Vrms
Idc 11
(Amps)
Typ.
Idc 22
(Amps)
Typ.
DCR
(m:)
±15%
ET Constant
(V-μS)
max.
Leakage
Inductance
(nH)Typ.
Parallel3Series4Parallel3Series4Parallel3Series4Parallel3Series4Parallel3Series4Single
PCA11/5ER-U01S002 193.0±30% 6.9mH±30% 0.11 0.02 2.6 0.44 44.4 1607 42.8 257 183
PCA11/5ER-U02S002 85.8±30% 3.1mH±30% 0.17 0.03 4.2 0.70 18.4 668 28.6 171 155
PCA11/5ER-U03S002 27.4±20% 985±20% 1.76 0.29 2.6 0.44 44.4 1607 42.8 257 183
PCA11/5ER-U04S002 12.2±20% 438±20% 2.60 0.43 4.2 0.70 18.4 668 28.6 171 155
PCA11/5ER-U05S002 14.7±20% 529±20% 3.74 0.62 2.6 0.44 44.4 1607 42.8 257 183
PCA11/5ER-U06S002 6.5±20% 235±20% 5.26 0.88 4.2 0.70 18.4 668 28.6 171 155
PCA11/5ER-U07S002 10.9±20% 394±20% 5.19 0.87 2.6 0.44 44.4 1607 42.8 257 183
PCA11/5ER-U08S002 4.9±20% 175±20% 7.50 1.25 4.2 0.70 18.4 668 28.6 171 155
PCA11/5ER-U09S002 8.5±20% 306±20% 6.57 1.10 2.6 0.44 44.4 1607 42.8 257 183
PCA11/5ER-U10S002 3.8±20% 136±20% 9.24 1.54 4.2 0.70 18.4 668 28.6 171 155
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001-01 / 20140415 / trans_d-d-con_pca_en.fm
• All specifications are subject to change without notice.
TRANSFORMERS
PCA series
PCA14.5/6ER Type
SHAPE & DIMENSIONS
RECOMMENDED LAND PATTERN CIRCUIT DIAGRAM
6.7ref.
12.0ref.
16.8max.
(0.7)
(0.35)0.7ref.
7.8max. 2.5ref.
16.3max.
1
2
3
4
5
6
12
11
10
9
8
7
Dimensions in mm
(13.2)
(17.4)
(1.4)
(2.5)
Suggested PCB layout
Dimensions in mm
4
1
10
7
5
2
11
8
6
3
12
9
1:1:1:1:1:1
(8/13)
001-01 / 20140415 / trans_d-d-con_pca_en.fm
• All specifications are subject to change without notice.
TRANSFORMERS
PCA series PCA14.5/6ER Type
ELECTRICAL CHARACTERISTICS
CHARACTERISTICS SPECIFICATION TABLE
Electrical Specifications @23°C
1 Idc 1 = Depend on inductance saturation. (30% below the initial value).
2 Idc 2 = Depend on self temperature rise. (Temperature increase of 40°C).
3 Parallel = 6 coils connected in parallel.
4 Series = 6 coils connected in series.
Part No.
Inductance
(μH)
@10KHz,0.1Vrms
Idc 11
(Amps)
Typ.
Idc 22
(Amps)
Typ.
DCR
(m:)
±15%
ET Constant
(V-μS)
max.
Leakage
Inductance
(nH)Typ.
Parallel3Series4Parallel3Series4Parallel3Series4Parallel3Series4Parallel3Series4Single
PCA14.5/6ER-U01S002 160.0±30% 5.8mH±30% 0.2 0.03 5.9 0.98 18.0 662 53.0 317 120
PCA14.5/6ER-U02S002 78.4±30% 2.8mH±30% 0.3 0.04 7.9 1.32 9.8 356 37.0 222 103
PCA14.5/6ER-U03S002 21.6±20% 778±20% 3.1 0.52 5.9 0.98 18.0 662 53.0 317 120
PCA14.5/6ER-U04S002 10.6±20% 381±20% 4.8 0.80 7.9 1.32 9.8 356 37.0 222 103
PCA14.5/6ER-U05S002 11.6±20% 418±20% 6.5 1.08 5.9 0.98 18.0 662 53.0 317 120
PCA14.5/6ER-U06S002 5.7±20% 205±20% 8.8 1.46 7.9 1.32 9.8 356 37.0 222 103
PCA14.5/6ER-U07S002 8.3±20% 299±20% 9.6 1.60 5.9 0.98 18.0 662 53.0 317 120
PCA14.5/6ER-U08S002 4.1±20% 146±20% 14.3 2.38 7.9 1.32 9.8 356 37.0 222 103
PCA14.5/6ER-U09S002 6.6±20% 238±20% 12.5 2.08 5.9 0.98 18.0 662 53.0 317 120
PCA14.5/6ER-U10S002 3.2±20% 116±20% 17.5 2.92 7.9 1.32 9.8 356 37.0 222 103
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001-01 / 20140415 / trans_d-d-con_pca_en.fm
• All specifications are subject to change without notice.
TRANSFORMERS
PCA series
PCA15EFD Type
SHAPE & DIMENSIONS
RECOMMENDED LAND PATTERN CIRCUIT DIAGRAM
15.5ref.
22.5max.
(1.82)
(0.40)0.7ref.
9.0max. 2.5ref.
17.5max.
1
2
3
4
5
6
12
11
10
9
8
7
Dimensions in mm
Dimensions in mm
(16.8)
(23.2)
(1.4)
(2.5)
Suggested PCB layout
1
12
4
9
2
11
5
8
3
10
6
7
1:1:1:1:1:1
(10/13)
001-01 / 20140415 / trans_d-d-con_pca_en.fm
• All specifications are subject to change without notice.
TRANSFORMERS
PCA series PCA15EFD Type
ELECTRICAL CHARACTERISTICS
CHARACTERISTICS SPECIFICATION TABLE
Electrical Specifications @23°C
1 Idc 1 = Depend on inductance saturation. (30% below the initial value).
2 Idc 2 = Depend on self temperature rise. (Temperature increase of 40°C).
3 Parallel = 6 coils connected in parallel.
4 Series = 6 coils connected in series.
Part No.
Inductance
(μH)
@10KHz,0.1Vrms
Idc 11
(Amps)
Typ.
Idc 22
(Amps)
Typ.
DCR
(m:)
±15%
ET Constant
(V-μS)
max.
Leakage
Inductance
(nH)Typ.
Parallel3Series4Parallel3Series4Parallel3Series4Parallel3Series4Parallel3Series4Single
PCA15EFD-U01S003 169.0±30% 6.1mH±30% 0.1 0.02 6.4 1.07 12.9 466 47.4 284 117
PCA15EFD-U02S002 81.0±30% 2.9mH±30% 0.2 0.04 8.0 1.34 8.9 323 32.8 197 98
PCA15EFD-U03S003 23.3±20% 840±20% 2.8 0.46 6.4 1.07 12.9 466 47.4 284 117
PCA15EFD-U04S002 11.2±20% 402±20% 3.8 0.64 8.0 1.34 8.9 323 32.8 197 98
PCA15EFD-U05S003 14.2±20% 511±20% 4.3 0.72 6.4 1.07 12.9 466 47.4 284 117
PCA15EFD-U06S002 6.8±20% 245±20% 7.1 1.19 8.0 1.34 8.9 323 32.8 197 98
PCA15EFD-U07S003 9.3±20% 335±20% 7.6 1.27 6.4 1.07 12.9 466 47.4 284 117
PCA15EFD-U08S002 4.5±20% 160±20% 11.3 1.88 8.0 1.34 8.9 323 32.8 197 98
PCA15EFD-U09S003 7.9±20% 286±20% 9.1 1.51 6.4 1.07 12.9 466 47.4 284 117
PCA15EFD-U10S002 3.8±20% 137±20% 13.4 2.23 8.0 1.34 8.9 323 32.8 197 98
(11/13)
001-01 / 20140415 / trans_d-d-con_pca_en.fm
• All specifications are subject to change without notice.
TRANSFORMERS
PCA series
PCA20EFD Type
SHAPE & DIMENSIONS
RECOMMENDED LAND PATTERN CIRCUIT DIAGRAM
20.5ref.
29.8max.
(2.025)
(0.40)0.8ref.
12.0max. 3.0ref.
21.0max.
1
2
3
4
5
6
12
11
10
9
8
7
Dimensions in mm
(23.4)
(30.5)
(1.6)
(3.0)
Suggested PCB layout
Dimensions in mm
1
12
4
9
2
11
5
8
3
10
6
7
1:1:1:1:1:1
(12/13)
001-01 / 20140415 / trans_d-d-con_pca_en.fm
• All specifications are subject to change without notice.
TRANSFORMERS
PCA series PCA20EFD Type
ELECTRICAL CHARACTERISTICS
CHARACTERISTICS SPECIFICATION TABLE
Electrical Specifications @23°C
1 Idc 1 = Depend on inductance saturation. (30% below the initial value).
2 Idc 2 = Depend on self temperature rise. (Temperature increase of 40°C).
3 Parallel 6 coils connected in parallel.
4 Series 6 coils connected in series.
Part No.
Inductance
(μH)
@10KHz,0.1Vrms
Idc 11
(Amps)
Typ.
Idc 22
(Amps)
Typ.
DCR
(m:)
±15%
ET Constant
(V-μS)
max.
Leakage
Inductance
(nH)Typ.
Parallel3Series4Parallel3Series4Parallel3Series4Parallel3Series4Parallel3Series4Single
PCA20EFD-U01S003 197.3±30% 7.1mH±30% 0.2 0.03 9.6 1.6 7.9 285 102 610 160
PCA20EFD-U02S002 87.7±30% 3.2mH±30% 0.3 0.06 12.0 2.0 5.2 188 68 407 109
PCA20EFD-U03S003 22.3±20% 804±20% 6.7 1.11 9.6 1.6 7.9 285 102 610 160
PCA20EFD-U04S002 9.9±20% 357±20% 8.6 1.43 12.0 2.0 5.2 188 68 407 109
PCA20EFD-U05S003 12.0±20% 430±20% 10.9 1.82 9.6 1.6 7.9 285 102 610 160
PCA20EFD-U06S002 5.3±20% 191±20% 16.1 2.68 12.0 2.0 5.2 188 68 407 109
PCA20EFD-U07S003 9.6±20% 347±20% 13.3 2.21 9.6 1.6 7.9 285 102 610 160
PCA20EFD-U08S002 4.3±20% 154±20% 20.5 3.42 12.0 2.0 5.2 188 68 407 109
PCA20EFD-U09S003 7.6±20% 275±20% 17.2 2.86 9.6 1.6 7.9 285 102 610 160
PCA20EFD-U10S002 3.4±20% 122±20% 26.2 4.36 12.0 2.0 5.2 188 68 407 109
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001-01 / 20140415 / trans_d-d-con_pca_en.fm
• All specifications are subject to change without notice.
TRANSFORMERS
PCA series
Packaging style
REEL DIMENSIONS
* These values are typical values.
TAPE DIMENSIONS
Ty p e A W1 W2 N E
PCA11/5ER ø330 24.5 28.5 ø99.4 2
PCA14.5/6ER ø330 24.5 28.5 ø99.4 2
PCA15EFD ø330 44.5 48.5 ø100 2
PCA20EFD ø330 44.5 48.5 ø100 2
Dimensions in mm
Ty p e A B øD0 E F P0 P1 P2 W K t
PCA11/5ER 12.3±0.1 13.8±0.1 1.5±0.1 1.75±0.1 11.5±0.1 4.0±0.1 16.0±0.1 2.0±0.1 24.0±0.3 6.85±0.1 0.35±0.03
PCA14.5/6ER 15.3±0.1 17.0±0.1 1.5±0.1 1.75±0.1 11.5±0.1 4.0±0.1 24.0±0.1 2.0±0.1 24.0±0.3 7.4±0.2 0.50±0.05
PCA15EFD 17.3±0.1 24.0±0.1 1.5±0.1 1.75±0.1 20.2±0.1 4.0±0.1 24.0±0.1 2.0±0.1 44.0±0.3 8.8±0.1 0.50±0.05
PCA20EFD 21.4±0.1 31.0±0.1 1.5±0.1 1.75±0.1 20.2±0.1 4.0±0.1 28.0±0.1 2.0±0.1 44.0±0.3 11.1±0.1 0.50±0.05
ø13±1.0
ø100±1.0
60
N
E
A
Dimensions in mm
W2
W1
B
FE
W
P0P2
P1A
øD0 t
K
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
TDK:
PCA15EFD-U10S002 PCA15EFD-U07S003 PCA15EFD-U05S003 PCA15EFD-U03S003 PCA11/5ER-U06S002
PCA15EFD-U04S002 PCA15EFD-U02S002 PCA15EFD-U09S003 PCA15EFD-U08S002 PCA15EFD-U06S002
PCA20EFD-U03S003 PCA15EFD-U01S003 PCA11/5ER-U04S002
