T R A N S F O R M E R S
Transformers for switching power supplies
Pin terminal type
Pb
RoHS
REACH
SVHC-Free
Lead
Free
ECO2425SEO-D05V014
■ FEATURES
○Downsized yet compliant with worldwide safety standards.
○Supports automatic winding.
○Considerably reduced characteristic variations.
■ APPLICATION
○Isolation type Single-output power supplies
○Input : 90 to 264Vac
○1Output : 24V/1.0A
○Circuit type : PWM flyback
○frequency : 100kHz
■ REFERENCE TEST BOARD
○TEST BOARD ECO30W-24 (TDK)
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Please note that the contents may change without any prior notice due to reasons such as upgrading.
(1/10)
20200824
data sheet_eco2425seo-d05v014_en.fm
T R A N S F O R M E R S
ECO2425SEO-D05V014
■ SHAPE & DIMENSIOS
28.5max.
25.0max.
6
7
5
8
4
9
3
10
2
11
1
12
3.5±0.8
31.5max.
9-ø0.8
Dimensions in mm
■ RECOMMENDED BASE MATERIAL OPENING SIZE
5.0±0.1
9-ø1.3
1
12
6
7
17.5±0.1
Dimensions in mm
[Top View]
■ SCHEMATICS
Vin
6
7
NP2
Tap
5
8
24V/1A
NS1
NP1
P-GND 4
9
NB
Vcc
3
10
Drain
2
11 S-GND
1
12
Pri.
Sec.
[Bottom View]
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Please note that the contents may change without any prior notice due to reasons such as upgrading.
(2/10)
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data sheet_eco2425seo-d05v014_en.fm
T R A N S F O R M E R S
ECO2425SEO-D05V014
■ WINDING SPECIFICATIONS
No.
1
2
3
4
5
6
7
8
9
10
1
2
Coil
NP1
NS1
NP2
NB
Terminal
2-5
8 - 11
5-6
3-4
Turns
20
20
37
13
Wire
UEW 0.37
UEW 0.32 x 2
UEW 0.37
UEW 0.23
Rdc(m)1
133
95.7
305
309
Note2
Clock wise (NP1 + NP2 =57Ts)
Clock wise
Clock wise
Clock wise
Rdc value is a reference.
Clockwise direction is an order direction when see a transformer from the upper part.
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use.
Please note that the contents may change without any prior notice due to reasons such as upgrading.
(3/10)
20200824
data sheet_eco2425seo-d05v014_en.fm
T R A N S F O R M E R S
ECO2425SEO-D05V014
■ ELECTRICAL CHARACTERISTICS
Inductance1
NP
(µH)
Tolerance
Leakage inductance1
NP(NB,NS all shorted)
(µH)max.
640
7.6
1
2
±10%
Withstanding voltage2
Pri. - Sec.
Coil - Core
Insulation resistance
Pri. - Sec.
Coil - Core
AC3.0kVrms 1min
or AC 3.6kVrms 1s
AC1.5kVrms 1min
or AC 1.8kVrms 1s
DC500V
100M min.
DC500V
100M min.
Measurement Condition : 100kHz, 1V
Measurement Condition : Sense 1.0mA, f=50 or 60Hz
■ SAFETY DISTANCE
Pri.-Sec.
Coil-Core
Creepage distance
4.0mm min. (CTI Ⅰ)
6.0mm min. (CTI Ⅲ)
2.0mm min. (CTI Ⅰ)
3.0mm min. (CTI Ⅲ)
Air clearance
4.0mm min.
2.0mm min.
■ INDUCTANCE CHANGE VS. BIAS CHARACTERISTICS
25°C
(µH)
650
626
619
610
598
584
566
543
513
477
100°C
(µH)
692
665
657
645
629
603
561
506
447
356
800
700
600
25°C
Inductance (µH)
Idc
(A)
0
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
500
100°C
400
300
200
100
00
0.5
1
1.5
2
2.5
DC current (A)
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Please note that the contents may change without any prior notice due to reasons such as upgrading.
(4/10)
20200824
data sheet_eco2425seo-d05v014_en.fm
T R A N S F O R M E R S
ECO2425SEO-D05V014
■ RELIABILITY TESTS
Item
Standards
Sweep 1.5mm amplitude and 10-to-55-to-10Hz in 1min in X, Y,
and Z directions for 2h respectively.
Vibration resistance
Heat resistance
Cold resistance
Humidity resistance
Test methods
Measure in normal temperature after leaving in 100±2°C for 96h.
Standard of inductance,
insulation resistance, withstand voltage
must be satisfied.
Temperature cycle
Terminal strength
9.8N min.
Solderability
Solder covers more than 90%.
Measure in normal temperature after leaving in –40±2°C for 96h.
Measure in normal temperature after leaving in 60±2°C
and 90 to 95(%)RH for 96h.
One cycle is –25°C for 30min, normal temperature for 30min,
and 85°C for 30min; measure after 10 cycles of the test have been performed.
Apply 9.8N load in the direction of terminal axis for 30±5s.
Any terminal must not be pulled out or chatter.
Dip in solder with the temperature of 245±2°C for 3±0.5s.
■ NOTE
□ Operation Range after the assembly
Temperature : –25°C to +115°C
(Including self temperature rise.)
Humidity
: 10 to 95%RH
(Maximum wet-bulb temperature is 38°C, without dewing)
□ Storage Range after the assembly
Temperature : -25°C to +80°C
Humidity
: 10 to 95%RH
(Maximum wet-bulb temperature is 38°C, without dewing)
□ Applicable Safety Standard
IEC600335-1, IEC61558-1 (Basic Insulation)
Electrical Appliance and Material Safety Act /Japan (Basic Insulation)
IEC62368-1 (Reinforced Insulation)
*Working voltage ≦ 300Vrms, Pollution degree 2
*Product is not approved to the above standard. But construction and materials are designed in accordance with safety considerations.
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Please note that the contents may change without any prior notice due to reasons such as upgrading.
(5/10)
20200824
data sheet_eco2425seo-d05v014_en.fm
T R A N S F O R M E R S
ECO2425SEO-D05V014
■ INPUT / OUTPUT OVERVIEW
Description
Input
Output
Voltage
Frequency
Power Factor
No Load Input Power
Voltage
Current
Ripple Voltage
Efficiency
Symbol
Vin
fac
PF
Pnl
Vout
Iout
Vripple
Eff
Min.
90
47
—
—
22.8
0
—
—
Typ.
50 / 60
0.54
—
24.0
1.0
—
85 / 87
Max.
264
63
—
172
25.2
1.0
150
—
Unit
Vac
Hz
mW
Vdc
A
mV
%
Condition
90 to 264Vac, Pomax
100Vac / 230Vac
20MHz Bandwidth,90 to 264Vac, Pomax
100Vac / 230Vac, Pomax
■ TEMPERATURE RISE
No.
Component
1
2
3
4
5
6
7
8
9
10
Ambient
L1
D1
R1
C5
IC
T1 (wire)
T1 (core)
D51
C51
90Vac
(°C)
25.0
39.7
34.6
54.8
32.6
41.0
43.1
40.8
38.0
37.7
T (°C)
—
14.7
9.6
29.8
7.6
16.0
18.1
15.8
13.0
12.7
100Vac
(°C)
25.0
38.3
34.0
51.8
33.1
38.2
43.2
41.6
35.0
37.1
T (°C)
—
13.3
9.0
26.8
8.1
13.2
18.2
16.6
10.0
12.1
230Vac
(°C)
25.0
33.4
31.8
41.3
34.1
40.2
46.3
45.8
36.0
35.6
T (°C)
—
8.4
6.8
16.3
9.1
15.2
21.3
20.8
11.0
10.6
264Vac
(°C)
25.0
33.2
31.5
40.3
32.8
40.7
46.6
45.8
33.0
35.1
T (°C)
—
8.2
6.5
15.3
7.8
15.7
21.6
20.8
8.0
10.1
Note: Test transformer was away from PWB surface about 3cm.
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use.
Please note that the contents may change without any prior notice due to reasons such as upgrading.
(6/10)
20200824
data sheet_eco2425seo-d05v014_en.fm
T R A N S F O R M E R S
ECO2425SEO-D05V014
■ LOAD REGULATION
Input voltage
(Vac)
90
100
230
264
24V
Output current
(%)
0%
5%
10%
25%
50%
75%
100%
0%
5%
10%
25%
50%
75%
100%
0%
5%
10%
25%
50%
75%
100%
0%
5%
10%
25%
50%
75%
100%
Input
power
(W)
0.110
1.590
2.990
7.023
13.960
21.090
28.280
0.114
1.579
2.993
6.980
13.930
20.930
27.960
0.172
1.726
3.273
7.251
14.160
20.890
27.600
0.196
1.859
3.490
7.398
14.256
21.050
27.830
(A)
0.00
0.05
0.10
0.25
0.50
0.75
1.00
0.00
0.05
0.10
0.25
0.50
0.75
1.00
0.00
0.05
0.10
0.25
0.50
0.75
1.00
0.00
0.05
0.10
0.25
0.50
0.75
1.00
Input
current
(A)
0.008
0.041
0.071
0.149
0.273
0.397
0.513
0.008
0.038
0.066
0.137
0.253
0.368
0.479
0.016
0.028
0.042
0.080
0.143
0.201
0.253
0.018
0.029
0.041
0.073
0.128
0.181
0.223
Power
factor
0.16
0.43
0.47
0.53
0.57
0.59
0.62
0.14
0.41
0.45
0.51
0.55
0.57
0.59
0.05
0.27
0.33
0.40
0.43
0.46
0.48
0.04
0.24
0.31
0.38
0.42
0.44
0.45
24V
Voltage
(Vdc)
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
Efficiency
(%)
0.0
75.1
79.9
85.0
85.6
85.0
84.5
0.0
75.6
79.8
85.6
85.8
85.6
85.4
0.0
69.2
73.0
82.4
84.4
85.8
86.6
0.0
64.3
68.5
80.7
83.8
85.1
85.8
100
95
90
Efficiency (%)
85
80
100Vac
90Vac
75
230Vac
70
65
264Vac
60
55
50
0
10
20
30
40
50
60
Output current (%)
70
80
90
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Please note that the contents may change without any prior notice due to reasons such as upgrading.
100
(7/10)
20200824
data sheet_eco2425seo-d05v014_en.fm
T R A N S F O R M E R S
ECO2425SEO-D05V014
■ REFERENCE WAVEFORM
100Vac, 24V/1A
230Vac, 24V/1A
Idrain
Vds
Vcc
Winding
Output
Voltage
24V/1A
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(8/10)
20200824
data sheet_eco2425seo-d05v014_en.fm
T R A N S F O R M E R S
ECO2425SEO-D05V014
■ REFERENCE SCHEMATIC DIAGRAM
250V/3.15A
1
F1
R1
3.9mH/1A
10ohm
R2
1M
0.5W
J2
1
1 L1
4
1000pF
Y1
C2
ECO2425SEO-D05V014
3A/600V
T1
2
3
R3
200K
0.25W
C3
2200pF
Y1
C4
0.1uF50V
1
10
0.25W
470uF
35V
470uF
35V
2.2uF
50V
C52 + C53 + C54
100pF50V
R57
120K
3
1K
0.1W
R58
9.1K
0.125W
3
R6
n.c.
C58
0.22uF50V
R56
4
2
C10
CS
1
0.033uF
50V
C8
FBB
BBA
FG
K
22K
0.1W
2
IC51
5.1
0.5W
3
uPC1093TA
R59
15K
0.125W
D3
1A200V
33uF50V
A
20V1W
+ C9
5.1
0.5W
330pF
50V
4
6
1
PC817X2N
R7
FG
R55 0.125W
5
Drain
7
VCC
GND
8
IC2A
4.7
0.25W
J1
1
0.047uF630V
C57
C7
R8
1
C56
R54
2.2K
0.1W
IC1
J1
1
R52 R53
100pF630V
PC817X2N
D4
C55
1
10K 10K
0.25W 0.25W
D2
ICE3A2065ELJ
IC2B
2.2uF
50V
C51
R4
200K
0.25W
+ C5
220pF630V
C6
400V120uF
1A600V
J2
1
10A300V
D51
R51
C1
1000pF
Y1
1
D1
0.22uF
X2
1
J1
1
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(9/10)
20200824
data sheet_eco2425seo-d05v014_en.fm
T R A N S F O R M E R S
An attention matter on use
Please read this specifications before using this product by all means.
An attention matter on security
I undertake use with this product, and it is paid attention enough, and please design an attention matter safely.
Attention on a design
When you designs a base of an electric circuit.
Please use size of the hole or pad which we recommend.
Magnetic flux to leak out occurs. Please confirm it about influence of magnetic flux beforehand.
There is fear to cause false movement of machinery.
In a design of a base of an electric circuit, Please consider the next contents.
In an applied safe standard.
The trans and distance with other parts
The product is not quakeproof structure.
Accordingly please do not add vibration and a shock to it.
There is fear to lose a function.
Attention on the handling
Please do not use it when you let a product drop.
The product produces possibility to lose a function
Please pay attention to the pin which had it pointed keenly.
There is danger to injure.
Please avoid the next place. The place that receives a drop of water, trash, the dust, foggy influence. The place where direct rays of the sun hits. There is
fear to cause false movement of machinery.
Please prohibit safekeeping and use at the next place. Environment to be accompanied with gas corrosion, salt, acid, alkali. There is fear to lose a
function.
When you carry the product on a base of an electric circuit.
Please do not use a metal tool. Because impossible power is added to a product.
There is fear to lose a function.
Attention
I considered the next matter, and we designed a product.
Safe standard and power supply voltage and circuit drive condition, drive frequency and Duty ON-TIME.
By those conditions, we decided structure and the turns number.
Please avoid use in designed condition outside.
There are destruction of a circuit part and fear of ignition.
This product considered a characteristic of a component and a self temperature rise, and it was made.
We select range of humidity as use temperature already.
Please avoid use by range more than this.
There are the damage and fear of ignition.
Please avoid use in the environment next.
The environment that trash and the dust stick to a product. There is fear to cause a fire.
The products listed on this specification sheet 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 this
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 equipmentapplications
(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.
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use.
Please note that the contents may change without any prior notice due to reasons such as upgrading.
(10/10)
20200824
data sheet_eco2425seo-d05v014_en.fm
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