DK03S/D Series
2W DC/DC CONVERTER, DIP-Package,Wide 2:1 Input Range
DS_ DK03S/D_07172012 E-mail: DCDC@delta.com.tw
http://www.delta.com.tw/dcdc
P1
FEATURES
Efficiency up to 86%
DIP Package with Industry Standard Pinout
MTBF > 1M Hours
Isolation Volage 1500VDC
Short Circuit Protection
Complies with EN55022 Class A
Operating Temperature Range -25 to +85
Low Ripple&Noise
CSA60950-1 Safety Approval
Lead free, RoHs Compliant
3 Years Product Warranty
The DK03S/D series are miniature, DIP Package, isolated 3W DC/DC converters with 1,500VDC isolation. It offers short circuit
protection and allows a wide operating temperature range of –25°C to +85°C. These isolated DC/DC converters are the latest
offering from a world leader in power systems technology and manufacturing Delta Electronics, Inc. With creative design
technology and optimization of component placement, these converters possess outstanding electrical and thermal performance, as
well as extremely high reliability under highly stressful operating conditions.
Model L ist
Output
Current
Input Current Efficiency
(typ.)
Input
Voltage
(Range)
Output
Voltage
Max. Min. @Max. Load @No Load
Reflected
Ripple
Current
Max. capacitive
Load
@Max. Load
Model
Number
VDC VDC mA mA mA(typ.) mA(typ.) mA(typ.) uF %
DK03S1203A 3.3 600 60 220 75
DK03S1205A 5 500 50 267 78
DK03S1212A 12 250 25 305 82
DK03S1215A 15 200 20 309
4000
81
DK03D1205A ±5 ±250 ±25 274 76
DK03D1212A ±12 ±125 ±12.5 313 80
DK03D1215A
12
(9 ~ 18)
±15 ±100 ±10 321
30 15
1000*
78
DK03S2403A 3.3 600 60 109 76
DK03S2405A 5 500 50 130 80
DK03S2412A 12 250 25 150 83
DK03S2415A 15 200 20 149
4000
84
DK03D2405A ±5 ±250 ±25 134 78
DK03D2412A ±12 ±125 ±12.5 152 82
DK03D2415A
24
(18 ~ 36)
±15 ±100 ±10 152
8 15
1000*
82
DK03S4803A 3.3 600 60 53 78
DK03S4805A 5 500 50 64 82
DK03S4812A 12 250 25 74 85
DK03S4815A 15 200 20 73
4000
86
DK03D4805A ±5 ±250 ±25 65 80
DK03D4812A ±12 ±125 ±12.5 74 84
DK03D4815A
48
(36 ~75)
±15 ±100 ±10 75
4 15
1000*
83
* For each output
DS_DK03S/D_07172012 E-mail: DCDC@delta.com.tw
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Input Cha rac teri stic s
Parameter Model Min. Typ. Max. Unit
12V Input Models -0.7 --- 25
24V Input Models -0.7 --- 50
Input Surge Voltage (1 sec. max.)
48V Input Models -0.7 --- 100
12V Input Models 4.5 7 9
24V Input Models 8 12 18
Start-Up Voltage
48V Input Models 16 24 36
12V Input Models --- 6.5 8.5
24V Input Models --- 11 17
Under Voltage Shutdown
48V Input Models --- 22 34
VDC
Reverse Polarity Input Current --- --- 1 A
Short Circuit Input Power --- 1000 2000 mW
Internal Power Dissipation --- --- 2500 mW
Conducted EMI
All Models
Compliance to EN 55022,class A and FCC part 15,class A
Output Characteristics
Parameter Conditions Min. Typ. Max. Unit
Output Voltage Accuracy --- ±0.5 ±1.0 %
Output Voltage Balance Dual Output, Balanced Loads --- ±0.5 ±2.0 %
Line Regulation Vin=Min. to Max. --- ±0.2 ±0.5 %
Load Regulation Io=10% to 100% --- ±0.2 ±0.5 %
Ripple & Noise (20MHz) --- 25 50 mV P-P
Ripple & Noise (20MHz) Over Line, Load & Temp. --- --- 75 mV P-P
Ripple & Noise (20MHz) --- --- 15 mV rms
Transient Recovery Time --- 300 500 uS
Transient Response Deviation 50% Load Step Change --- ±3 ±6 %
Temperature Coefficient --- ±0.01 ±0.02 %/
Over Load Protection Foldback 120 TBD --- %
Short Circuit Protection Continuous
General Charac teristics
Parameter Conditions Min. Typ. Max. Unit
I/O Isolation Voltage (rated) 60 Seconds 1500 --- --- VDC
I/O Isolation Resistance 500 VDC 1000 --- --- M
I/O Isolation Capacitance 100KHz, 1V --- 350 500 pF
Switching Frequency 200 300 450 KHz
MTBF (calculated) MIL-HDBK-217F@25, Ground Benign 1,000,000 --- --- Hours
Safety Approvals UL/cUL 60950-1 recognition(CSA certificate), IEC/EN 60950-1
Recommended Input Fuse
12V Input Models 24V Input Models 48V Input Models
700mA Slow-Blow Type 350mA Slow-Blow Type 135mA Slow-Blow Type
Envi ronmental Characteristics
Parameter Conditions Min. Max. Unit
Operating Temperature Range (with
Derating)
Ambient -25 +85
Case Temperature --- +90
Storage Temperature Range -50 +125
Humidity (non condensing) --- 95 % rel. H
Cooling Free-Air convection
Lead Temperature (1.5mm from case for
10Sec.) --- 260
DS_DK03S/D_07172012 E-mail: DCDC@delta.com.tw
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Power Dera ti ng Curve
Output Power (%)
Notes
1 Specifications typical at Ta=+25, resistive load, nominal input voltage and rated output current unless otherwise noted.
2 Transient recovery time is measured to within 1% error band for a step change in output load of 50% to 100%
3 Ripple & Noise measurement bandwidth is 0-20MHz.
4 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.
5 All DC/DC converters should be externally fused at the front end for protection.
6 Specifications subject to change without notice.
Mechancial Drawing
Mechanical Dimensions Pin Connections
Pin Single Output Dual Output
2 -Vin -Vin
3 -Vin -Vin
9 No Pin Common
11 NC -Vout
14 +Vout +Vout
16 -Vout Common
22 +Vin +Vin
23 +Vin +Vin
NC: No Connection
All dimensions in mm (inches)
Tolerance: X.X±0.25 (X.XX±0.01)
X.XX±0.13 ( X.XXX±0.005)
Pin diameter 0.5 ±0.05 (0.02±0.002)
Physical Outline
Case Size : 31.8x20.3x10.2mm (1.25x0.80x0.40 Inches)
Case Material : Non-Conductive Black Plastic
Weight : 12.2g
Bottom View
2
23
15.24 [0.60]
31.8[1.25]
5.08
[0.20]
22
311
9
16 14
4.5
[0.18]
2.54
[0.10]
10.2
[0.40]
4.5
[0.18]
15.22 [0.60]
20.3 [0.80]
2.54
[0.10]
0.50 [0.02]
DS_DK03S/D_07172012 E-mail: DCDC@delta.com.tw
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Part Numbering System
D K 03 S 12 05 A
Form factor Family series Watt Nu mber of
Outputs Input Voltage Output Voltage Option Code
D-DIP A~Z 01:1W S - Single 03:3.3V 03:3.3V A - Std. Functions
P-SIP 02:2W D- Dual 05: 5V 05: 5V
S-SMD 03:3W 12:12V 12:12V
04:4W 24: 24V 15: 15V
06:6W 48:48V 24: 24V
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.
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Authorized Distributor
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Delta Electronics:
DK03D2412A DK03S4803A DK03D4812A DK03S4805A DK03D4815A DK03S4815A DK03S1205A DK03S2405A
DK03S1212A DK03D1212A DK03S1215A DK03D2415A DK03S2412A DK03D1215A DK03S2415A
DK03D4805A DK03D2405A DK03S4812A DK03S1203A DK03D1205A DK03S2403A