NU-E1K SERIES
1W UNREGULATED
FEATURES
UP TO 1W UNREGULATED OUTPUT POWER
100% BURN IN
HIGH EFFICIENCY
SMD TECHNOLOGY
LOW COST
UL 94V-0 PACKAGE MATERIAL
CUSTOM SOLUTIONS AVAILABLE
MTBF>888,000 HOURS
RoHS COMPLIANT
3 YEARS WARRANTY
OUTPUT SPECIFICATIONS
INPUT SPECIFICATIONS
Voltage Set-point Accuracy
+/-2% max. Input Voltage Range
Temperature Coefficient
+/-0.03%/°C Input Filter
Capacitor Type
100mVp-p max. Protection
Fuse Recommended
Ripple & Noise(20MHz BW)1
2
Line Regulation
Load Regulation3
Minimum Load
Short Circuit Protection
S-Suffix
+/-1.2% max.
+/-8% max.
S-Suffix
Storage Temperature
GENERAL SPECIFICATIONS
10% of Full Load Efficiency
72%-82%
Momentary Isolation Voltage4
3000 VDC min.
Continuous Isolation Resistance
10 ohms min.
ENVIRONMENTAL SPECIFICATIONS
Operating Temperature
+/-10% max.
9
Isolation Capacitance
80pF max.
Switching Frequency
100KHz max.
-40 °C to +85°C MTBF5
>880,000 Hours
-40 °C to +100°C Weight
1.2g typ.
-55°C to +125°C Case Material
Humidity
95% max. Case Size
Cooling
Free-Air Convection Radiated Emissions
Non-Conductive Plastic
15.24mm*11.1mm*7.1mm
EN55032 Class B
ALL SPECIFICATIONS TYPICAL AT NOMINAL LINE, FULL LOAD , AND 25°C UNLESS OTHERWISE NOTED.
1
2
3
4
5
Measured with 1uF ceramic capacitor connect to the output pins.
Line Regulation is for a 1.0% change in input Voltage.
Load Regulation is for output load current change from 20% to 100%.
For 3 seconds.
MIL-HDBK-217F@25°C, Ground Benign.
DANUBE
http://www.danube.com.tw
1
2018/03/15
SELECTION GUIDE
1W 3000VDC ISOLATION
INPUT
MODEL
NUMBER
OUTPUT
OUTPUT
INPUT6
VOLTAGE VOLTAGE CURRENT CURRENT(mA) EFF
(VDC)
NUS-03.303.3E1K(S)
(VDC)
(mA)
FULL
NO
LOAD
LOAD
ISOLATION
PACKAGE
(%)7
(VDC)
3.3
3.3
300
415
40
73
3000
E
NUS-0503.3E1K(S)
5
3.3
300
267
30
75
3000
E
NUS-0505E1K(S)
5
5
200
260
30
77
3000
E
NUS-0512E1K(S)
5
12
84
257
30
78
3000
E
NUS-0515E1K(S)
5
15
67
253
30
79
3000
E
NUD-0505E1K(S)
5
+/-5
+/-100
260
30
77
3000
E
NUD-0512E1K(S)
5
+/-12
+/-42
257
30
78
3000
E
NUD-0515E1K(S)
5
+/-15
+/-34
253
30
79
3000
E
NUS-1205E1K(S)
12
5
200
104
12
80
3000
E
NUS-1212E1K(S)
12
12
84
103
12
81
3000
E
NUS-1215E1K(S)
12
15
67
102
12
82
3000
E
NUD-1205E1K(S)
12
+/-5
+/-100
104
12
80
3000
E
NUD-1212E1K(S)
12
+/-12
+/-42
103
12
81
3000
E
NUD-1215E1K(S)
12
+/-15
+/-34
102
12
82
3000
E
NUS-2405E1K(S)
24
5
200
55
10
76
3000
E
NUS-2412E1K(S)
24
12
84
55
10
76
3000
E
NUS-2415E1K(S)
24
15
67
55
10
76
3000
E
NUD-2405E1K(S)
24
+/-5
+/-100
55
10
76
3000
E
NUD-2412E1K(S)
24
+/-12
+/-42
55
10
76
3000
E
NUD-2415E1K(S)
24
+/-15
+/-34
55
10
76
3000
E
Note: Other input to output voltages may be available. Please contact factory.
6
7
NOMINAL INPUT VOLTAGE.
NOMINAL INPUT VOLTAGE, FULL LOAD.
DANUBE
http://www.danube.com.tw
2
2018/03/15
MECHANICAL DIMENSIONS &
RECOMMENDED FOOTPRINT DETAILS
PACKAGE ”E”
PIN
SINGLE
DUAL
1
-Vin
-Vin
2
+Vin
+Vin
3
NC
NC
5
-Vout
Com
6
NC
-Vout
7
NC
NC
8
+Vout
+Vout
10
NC
NC
11
NC
NC
12
NC
NC
NOTE : All Dimensions are in mm [inches]
1. Pin Size is 0.50x0.30mm[0.02x0.01”]
2. Pin is Tolerance .XX= ±0.07mm
3. Tolerance .X or .XX= ±0.5mm
DANUBE
http://www.danube.com.tw
3
2018/03/15
REFLOW SOLDERING CURVE
Remark:The curve applies only to the hot air reflow soldering.
SIMPLIFIED SCHEMATIC
SINGLE OUTPUT
DUAL OUTPUT
+Vin
+Vout
OSCILLATOR
DRIVER
+Vin
+Vout
OSCILLATOR
DRIVER
-Vout
-Vin
COMMON
-Vin
-Vout
TYPICAL APPLICATIONS
SINGLE OUTPUT
INPUT
DUAL OUTPUT
OUTPUT
+Vin
+Vout
INPUT
OUTPUT
+Vin
+Vout
LOAD1
DC-DC
CONVERTER
-Vin
LOAD
Common
DC-DC
CONVERTER
-Vin
-Vout
LOAD2
-Vout
TYPICAL PERFORMANCE CURVES
Specifications typical at ta=25 °C, nominal input voltage, rated output current unless otherwise specified.
EFFICIENCY(%)
OUTPUT LOAD VS EFFICIENCY
TEMPERATURE DERATING
80.0
60.0
40.0
20.0
0.0
0
20
40
60
80
100
% OF RATED LOAD(%)
DANUBE
http://www.danube.com.tw
4
2018/03/15
INPUT FUSE SELECTION GUIDE
1W 3000VDC ISOLATION
4.5-5.5V
10.8-13.2V
21.6-26.4V
INPUT VOLTAGE(VDC)
INPUT VOLTAGE(VDC)
INPUT VOLTAGE(VDC)
750mA Slow-Blow Type
300mA Slow-Blow Type
INPUT
150mA Slow-Blow Type
OUTPUT
+Vin
+Vout
Fuse
DC-DC
CONVERTER
-Vi n
-Vout
Note: Certain applications may require the installation of external fuse in front of the input.
NU-E1K SERIES APPLICATION NOTES:
EXTERNAL CAPACITANCE REQUIREMENTS:
Output filtering is required for operation. A minimum of 10uF is needed. Output capacitance may be
increased for additional filtering, not to exceed 220uF.
To meet the reflected ripple requirements of the converter, an input impedance of less than 0.5 ohm
from DC to 250KHz is required.
We Can Offer EMC-Filter According To EN55032 Class B.
Negative Outputs:
A negative output voltage may be obtained by connecting the +OUT to circuit ground and
connecting –OUT as the negative output.
FOR MORE INFORMATION CALL:
Danube Enterprise Co., Ltd.
Tel: 886-7-3755165
Fax: 886-7-3755330
Home Page
http://www.danube.com.tw
DANUBE
E-mail: danube@ms10.hinet.net
http://www.danube.com.tw
5
2018/03/15
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