DK03S/D Series
2W DC/DC CONVERTER, DIP-Package,Wide 2:1 Input Range
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 List
Model
Number
Input
Voltage
(Range)
VDC
DK03S1203A
DK03S1205A
DK03S1212A
12
DK03S1215A
(9 ~ 18)
DK03D1205A
DK03D1212A
DK03D1215A
DK03S2403A
DK03S2405A
DK03S2412A
24
DK03S2415A
(18 ~ 36)
DK03D2405A
DK03D2412A
DK03D2415A
DK03S4803A
DK03S4805A
DK03S4812A
48
DK03S4815A
(36 ~75)
DK03D4805A
DK03D4812A
DK03D4815A
Output
Voltage
VDC
3.3
5
12
15
±5
±12
±15
3.3
5
12
15
±5
±12
±15
3.3
5
12
15
±5
±12
±15
Output
Current
Max.
mA
600
500
250
200
±250
±125
±100
600
500
250
200
±250
±125
±100
600
500
250
200
±250
±125
±100
Min.
mA
60
50
25
20
±25
±12.5
±10
60
50
25
20
±25
±12.5
±10
60
50
25
20
±25
±12.5
±10
Input Current
@Max. Load
mA(typ.)
220
267
305
309
274
313
321
109
130
150
149
134
152
152
53
64
74
73
65
74
75
@No Load
mA(typ.)
Reflected
Ripple
Current
mA(typ.)
Max. capacitive
Load
uF
4000
30
15
1000*
Efficiency
(typ.)
@Max. Load
%
75
78
82
81
76
80
78
76
80
83
84
78
82
82
78
82
85
86
80
84
83
* For each output
4000
8
15
1000*
4000
4
15
1000*
DS_ DK03S/D_07172012
E-mail: DCDC@delta.com.tw
http://www.delta.com.tw/dcdc
P1
Input Characteristics
Parameter
Input Surge Voltage (1 sec. max.)
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
Min.
Typ.
Max.
Unit
-0.7
25
---
-0.7
50
---
-0.7
100
---
4.5
7
9
VDC
8
12
18
16
24
36
---
6.5
8.5
---
11
17
---
22
34
---
---
1
A
---
1000
2000
mW
---
---
2500
mW
Compliance to EN 55022,class A and FCC part 15,class A
Start-Up Voltage
Under Voltage Shutdown
Reverse Polarity Input Current
Short Circuit Input Power
Internal Power Dissipation
Conducted EMI
All Models
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
Over Load Protection
Short Circuit Protection
Foldback
50% Load Step Change
Over Line, Load & Temp.
Dual Output, Balanced Loads
Vin=Min. to Max.
Io=10% to 100%
Conditions
Min.
---
---
---
---
---
---
---
---
---
---
120
Continuous
Typ.
±0.5
±0.5
±0.2
±0.2
25
---
---
300
±3
±0.01
TBD
Max.
±1.0
±2.0
±0.5
±0.5
50
75
15
500
±6
±0.02
---
Unit
%
%
%
%
mV
P-P
mV
P-P
mV rms
uS
%
%/℃
%
General Characteristics
Parameter
I/O Isolation Voltage (rated)
I/O Isolation Resistance
I/O Isolation Capacitance
Switching Frequency
MTBF (calculated)
Safety Approvals
MIL-HDBK-217F@25℃, Ground Benign
Conditions
60 Seconds
500 VDC
100KHz, 1V
Min.
1500
1000
---
200
1,000,000
Typ.
---
---
350
300
---
Max.
---
---
500
450
---
Unit
VDC
MΩ
pF
KHz
Hours
UL/cUL 60950-1 recognition(CSA certificate), IEC/EN 60950-1
Recommended Input Fuse
12V Input Models
700mA Slow-Blow Type
24V Input Models
350mA Slow-Blow Type
48V Input Models
135mA Slow-Blow Type
Environmental Characteristics
Parameter
Operating Temperature Range (with
Derating)
Case Temperature
Storage Temperature Range
Humidity (non condensing)
Cooling
Lead Temperature (1.5mm from case for
10Sec.)
Conditions
Ambient
Min.
-25
---
-50
---
Free-Air convection
---
260
℃
Max.
+85
+90
+125
95
Unit
℃
℃
℃
% rel. H
DS_DK03S/D_07172012
E-mail: DCDC@delta.com.tw
http://www.delta.com.tw/dcdc
P2
Power Derating Curve
Notes
1
2
3
4
5
6
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 50% 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.
Mechancial Drawing
Mechanical Dimensions
Pin Connections
Pin
Single Output
2
-Vin
3
9
11
14
4.5
[0.18]
0.50 [0.02]
Output Power (%)
10.2
[0.40]
Dual Output
-Vin
-Vin
Common
-Vout
+Vout
Common
+Vin
+Vin
-Vin
No Pin
NC
+Vout
-Vout
+Vin
+Vin
NC: No Connection
16
22
23
2
3
9
11
15.22 [0.60]
14
Bottom View
23
22
16
2.54
[0.10]
15.24 [0.60]
31.8[1.25]
[0.20][0.18]
5.08
4.5
2.54
[0.10]
20.3 [0.80]
►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
Case Material
Weight
:
:
:
31.8x20.3x10.2mm (1.25x0.80x0.40 Inches)
Non-Conductive Black Plastic
12.2g
DS_DK03S/D_07172012
E-mail: DCDC@delta.com.tw
http://www.delta.com.tw/dcdc
P3
Part Numbering System
D
Form factor
D-DIP
P-SIP
S-SMD
K
Family series
A~Z
03
Watt
01:1W
02:2W
03:3W
04:4W
06:6W
S
Number of
Outputs
S - Single
D- Dual
12
Input Voltage
03:3.3V
05: 5V
12:12V
24: 24V
48:48V
05
Output Voltage
03:3.3V
05: 5V
12:12V
15: 15V
24: 24V
A
Option Code
A - Std. Functions
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_DK03S/D_07172012
E-mail: DCDC@delta.com.tw
http://www.delta.com.tw/dcdc
P4
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