Datasheet
DANUBE 
http://www.danube.com.tw 
2009/06/04 
1
FEATURES 
z  SINGLE IN LINE PACKAGE 
z  UP TO 1W REGULATED OUTPUT POWER 
z  100% BURNED IN 
z  EFFICIENCY UP TO 53% 
z  INTERNAL SMD TECHNOLOGY 
z  NO EXTERNAL COMPONENTS REQUIRED 
z  LOW COST 
z  1500VDC ISOLATION 
z  UL 94V-0 PACKAGE MATERIAL 
z  CUSTOM SOLUTIONS AVAILABLE 
z  RoHS COMPLIANT 
z  3 YEARS WARRANTY 
OUTPUT SPECIFICATIONS 
Voltage Setpoint Accuracy 
+/-3% max
Input Voltage Range  +/-10%  max
Temperature Coefficient 
+/-0.05%/°C
Input Filter  Capacitor  Typ
Ripple & Noise(20MHz BW)
1
  100mVp-p max Protection  Fuse Recommended
Line Regulation
2
 +/-1% max
Load Regulation
3
 +/-1% max
GENERAL SPECIFICATIONS 
Minimum Load  10% of Full Load Efficiency  50% min
Short Circuit Protection  Current  Limit Protection Isolation Voltage
4
  1500 VDC min
Short Circuit Restart  Automatic Isolation  Resistance  10
9
 ohms min
Transient Response
5
  100uS max Isolation Capacitance  80pF max
  Switching Frequency  100KHz min
 MTBF
6
 >1,800,000 Hours
ENVIRONMENTAL SPECIFICATIONS 
Weight 2.3g Typ
Operating Temperature  -25
°C to +71
°C Case Material  Non-Conductive Plastic
Storage Temperature  -55
°C to +125
°C Case Size  19.6mm*7.1mm*10.2mm
Humidity  95%  max Conducted Emissions  EN55022 Class A
Cooling  Free-Air Convection Radiated Emissions  EN55022 Class A
ALL SPECIFICATIONS TYPICAL AT NOMINAL LINE, FULL LOAD , AND 25
°C UNLESS OTHERWISE NOTED. 
1
 Measured with 1uF ceramic capacitor connect to the output pins. 
2
  High Line to Low Line. 
3
  Load Regulation is for output load current change from 10% to 100%. 
4
  For 10 seconds. 
5
  25% Step Load Change. 
6
 MIL-HDBK-217F @25
°C , Ground Benign. 
PR SERIES 
1W REGULATED 




