SE03S/D Sries
3W DC/DC CONVERTER, SMD-Package, 2:1 Wide Input Range
FEATURES
Efficiency up to 83%
SMD Package with Industry Standard Pinout
Isolation Voltage 1500VDC
2:1 Wide Input Range
Low ripple and noise
Short Circuit Protection
Temperature Performance -40℃ to +71℃
CSA60950-1 Safety Approval
> 1MHours MTBF
Lead free, RoHs Compliant
3 Years Product Warranty
The SE03S/D series are miniature, SMD Package, isolated 3W DC/DC converters with 1,500VDC isolation. The SE03S/D series
features fully regulated output and ultra wide 2:1 input voltage ranges. It offers short circuit protection and allows a wide
operating temperature range of –40°C to +71°C. These isolated DC/DC converters are the latest offering from a world leader in
power systems technology and manufacturing ― Delta Electronics, Inc.
Model List
Model
Number
Input
Voltage
(Range)
Output
Voltage
Max.
Min.
@Max. Load
VDC
VDC
3.3
mA
700
mA
70
mA(typ.)
257
SE03S1205A
5
600
60
316
SE03S1212A
12
250
25
305
15
200
20
305
SE03D1205A
±5
±300
±30
321
SE03D1212A
±12
±125
±12.5
309
SE03D1215A
±15
±100
±10
309
81
SE03S2403A
3.3
700
70
127
76
SE03S2405A
5
600
60
156
SE03S2412A
12
250
25
151
15
200
20
151
SE03D2405A
±5
±300
±30
158
SE03D2412A
±12
±125
±12.5
152
SE03D2415A
±15
±100
±10
152
82
SE03S4803A
3.3
700
70
63
76
SE03S4805A
5
600
60
78
12
250
25
75
15
200
20
75
SE03D4805A
±5
±300
±30
79
SE03D4812A
±12
±125
±12.5
76
SE03D4815A
±15
±100
±10
76
SE03S1203A
SE03S1215A
SE03S2415A
12
(9 ~ 18)
24
(18 ~ 36)
SE03S4812A
SE03S4815A
48
(36 ~ 75)
Output Current
Input Current
Max. capacitive
Load
@No Load
Reflected
Ripple
Current
mA(typ.)
mA(typ.)
uF
@Max. Load
4700
20
Efficiency
(typ.)
25
%
75
79
82
82
78
180*
4700
5
15
81
80
83
83
79
180*
4700
3
10
82
80
83
83
79
180*
82
82
* For each output
DS_SE03S/D_08222014
E-mail: DCDC@delta.com.tw
http://www.delta.com.tw/dcdc
P1
Input Characteristics
Parameter
Model
12V Input Models
24V Input Models
48V Input Models
12V Input Models
24V Input Models
48V Input Models
12V Input Models
24V Input Models
48V Input Models
Input Surge Voltage (1 sec. max.)
Start-Up Voltage
Under Voltage Shutdown
Reverse Polarity Input Current
Short Circuit Input Power
Input Filter
Internal Power Dissipation
All Models
Min.
-0.7
-0.7
-0.7
4.5
8
16
-----------
Typ.
------6
12
24
-----------
Max.
25
50
100
8
18
36
8
16
32
0.5
1500
Unit
---
---
2500
mW
Min.
---------
Typ.
±0.5
±0.5
±0.1
±0.3
Max.
±1.0
±2.0
±0.3
±1.0
Unit
%
%
%
%
mV P-P
mV P-P
mV rms
uS
%
%/℃
VDC
A
mW
Pi Filter
Output Characteristics
Parameter
Output Voltage Accuracy
Output Voltage Balance
Line Regulation
Load Regulation
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Transient Recovery Time
Transient Response Deviation
Temperature Coefficient
Short Circuit Protection
Conditions
Dual Output, Balanced Loads
Vin=Min. to Max.
Io=10% to 100%
Over Line, Load & Temp.
25% Load Step Change
-------------
50
75
--100
--10
200
500
±2
±6
±0.01
±0.02
Continuous
General Characteristics
Parameter
I/O Isolation Voltage (rated)
I/O Isolation Resistance
I/O Isolation Capacitance
Switching Frequency
MTBF (calculated)
Moisture Sensitivity Level (MSL)
Conditions
60 Seconds
500 VDC
100KHz, 1V
Min.
1500
1000
----1,000,000
MIL-HDBK-217F@25℃, Ground Benign
IPC/JEDEC J-STD-020D
Typ.
----65
300
---
Max.
----100
-----
Unit
VDC
MΩ
pF
KHz
Hours
Level 2
Recommended Input Fuse
12V Input Models
750mA Slow-Blow Type
24V Input Models
350mA Slow-Blow Type
48V Input Models
200mA Slow-Blow Type
Environmental Specifications
Parameter
Operating Temperature Range
(with Derating)
Case Temperature
Storage Temperature Range
Humidity (non condensing)
Cooling
Lead Temperature
(1.5mm from case for 10Sec.)
DS_SE03S/D_08222014
Conditions
Ambient
Min.
-40
Max.
+85
--+90
-50
+125
--95
Free-Air convection
---
260
Unit
℃
℃
℃
% rel. H
℃
E-mail: DCDC@delta.com.tw
http://www.delta.com.tw/dcdc
P2
Power Derating Curve
100
Natural
convection
Output Power (%)
80
100LFM
200LFM
60
400LFM
40
20
0
~
-40
0
20
40
60
80
100 110
Ambient Temperature ]
Notes
1
2
3
4
5
6
7
Specifications typical at Ta=+25℃, resistive load, nominal input voltage and rated output current unless otherwise noted.
Transient recovery time is measured to within 1% error band for a step change in output load of 75% to 100%
Ripple & Noise measurement bandwidth is 0-20MHz.
These power converters require a minimum output loading to maintain specified regulation, operation under no-load conditions will not
damage these modules; however they may not meet all specifications listed.
All DC/DC converters should be externally fused at the front end for protection.
Specifications subject to change without notice.
It is not recommended to use water-washing process on SMT units.
Mechancial Drawing
Mechanical Dimensions
Connecting Pin Patterns
32.3 [1.27]
5.08
[0.2]
24 23 22
15 14 13
27.94 [1.10]
2.6 [0.10]
1 2 3
18.8 [0.74]
17.78 [0.7]
[0.2]
16.1 [0.63]
5.08
14.8 [0.58]
2.18
[0.09]
20.0 [0.79]
10 11 12
9.7 [0.38]
0.50 [0.02]
2.54 [0.10]
►All
0~
5
X.X±0.25 (X.XX±0.01)
X.XX±0.13 ( X.XXX±0.005)
0.15 S
►Pins
Pin Connections
1.0 [0.04]
dimensions in mm (inches)
►Tolerance:
10.2 0.5
[0.4 0.02]
0.5 [0.02]
S SEATING
PLANE
17.78 [0.70]
±0.05 (±0.002)
Physical Characteristics
Pin
Single Output
Dual Output
1,2
-Vin
-Vin
3,11,14,22
NC
NC
10
NC
Common
12
NC
-Vout
13
+Vout
+Vout
15
-Vout
Common
23,24
+Vin
+Vin
Case Size
:
Case Material
Weight
32.3x14.8x10.2mm (1.27x0.58x0.4 Inches)
Non-Conductive Black Plastic
:
(flammability to UL 94V-0 rated)
:
8.8g
NC : No Connection
DS_SE03S/D_08222014
E-mail: DCDC@delta.com.tw
http://www.delta.com.tw/dcdc
P3
Part Numbering System
S
E
03
S
12
05
A
Form factor
Family series
Watt
Number of
Outputs
Input Voltage
Output Voltage
Option Code
D-DIP
P-SIP
S-SMD
A~Z
01:1W
02:2W
03:3W
04:4W
06:6W
03:3.3V
05: 5V
12:12V
24: 24V
48:48V
03:3.3V
05: 5V
12:12V
15: 15V
24: 24V
A - Std. Functions
S - Single
D- Dual
WARRANTY
Delta offers a three(3) years limited warranty. Complete warranty information is listed on our web site or is available upon request from Delta.
Information furnished by Delta is believed to be accurate and reliable. However, no responsibility is assumed by Delta for its use, nor for any
infringements of patents or other rights of third parties, which may result from its use. No license is granted by implication or otherwise under
any patent or patent rights of Delta. Delta reserves the right to revise these specifications at any time, without notice.
DS_SE03S/D_08222014
E-mail: DCDC@delta.com.tw
http://www.delta.com.tw/dcdc
P4
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Delta Electronics:
SE03D1215A SE03D1212A SE03S1212A SE03D2412A SE03D4812A SE03S2405A SE03S4803A SE03S2412A
SE03D4815A SE03D2415A SE03S4805A SE03D4805A SE03D1205A SE03S1203A SE03S2403A SE03S4815A
SE03S2415A SE03S4812A SE03S1215A SE03S1205A SE03D2405A
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