Datasheet
SF05S/D Sries 
5W DC/DC CONVERTER, SMD-Package , Wide 2:1 Input Ranage 
DS_SF05S/D_07162012             E-mail: DCDC@delta.com.tw 
http://www.delta.com.tw/dcdc   
P1 
  FEATURES 
  Efficiency up to 85% 
  SMD Package with Industry Standard Pinout 
 2:1 Wide Input Range 
  Isolation Volage 1500VDC 
 Remote on/off Control 
 Short Circuit Protection 
  Complies with EN55022 Class A 
 > 1MHours MTBF 
  Moisture sensitivity level (MSL) 2 
 Lead free, RoHs Compliant 
  3 Years Product Warranty 
The SF05S/D series are miniature, SMD Package, isolated 5W DC/DC converters with 1,500VDC isolation. The SF05S/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.    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  
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  % 
SF05S1203A 3.3 1200 120 434  76 
SF05S1205A 5 1000 100 521  80 
SF05S1212A 12 417 41.7 502  83 
SF05S1215A 15 333 33.3 502 
680 
83 
SF05D1205A ±5 ±500 ±500 521  80 
SF05D1212A ±12 ±208 ±20.8 501  83 
SF05D1215A 
12 
(9 ~ 18) 
±15 ±167 ±16.7  503 
45 25 
100* 
83 
SF05S2403A 3.3 1200 120 212  78 
SF05S2405A 5 1000 100 254  82 
SF05S2412A 12 417 41.7 245  85 
SF05S2415A 15 333 33.3 245 
680 
85 
SF05D2405A ±5 ±500 ±500 254  82 
SF05D2412A ±12 ±208 ±20.8 245  85 
SF05D2415A 
24 
(18 ~ 36) 
±15 ±167 ±16.7  246 
15 15 
100* 
85 
SF05S4803A 3.3 1200 120 106  78 
SF05S4805A 5 1000 100 127  82 
SF05S4812A 12 417 41.7 123  85 
SF05S4815A 15 333 33.3 122 
680 
85 
SF05D4805A ±5 ±500 ±500 127  82 
SF05D4812A ±12 ±208 ±20.8 122  85 
SF05D4815A 
48 
(36 ~ 75) 
±15 ±167 ±16.7  123 
6 10 
100* 
85 
* For each output 





