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E121EI View Datasheet(PDF) - MicroPower Direct, LLC

Part Name
Description
Manufacturer
E121EI Datasheet PDF : 2 Pages
1 2
Model Selection Guide
www.micropowerdirect.com
Model
Number
E101EI
E102EI
E103EI
E104EI
E111EI
E112EI
E113EI
E114EI
E121EI
E122EI
E123EI
E124EI
E151EI
E152EI
Input
Voltage (VDC)
Current (mA)
Nominal Range Full-Load No-Load
5
4.5 - 5.5
290
50
5
4.5 - 5.5
263
50
5
4.5 - 5.5
256
50
5
4.5 - 5.5
256
50
12 10.8 - 13.2 117
21
12 10.8 - 13.2 113
21
12 10.8 - 13.2 107
21
12 10.8 - 13.2 105
21
24 21.6 - 26.4 58
17
24 21.6 - 26.4 54
17
24 21.6 - 26.4 54
17
24 21.6 - 26.4 53
17
3.3 2.97 - 3.63 432
76
3.3 2.97 - 3.63 415
76
Voltage
(VDC)
5.0
9.0
12.0
15.0
5.0
9.0
12.0
15.0
5.0
9.0
12.0
15.0
3.3
5.0
Output
Current
(mA, Max)
200.0
111.0
83.0
67.0
200.0
111.0
83.0
67.0
200.0
111.0
83.0
67.0
303.0
200.0
Current
(mA, Min)
20.0
12.0
9.0
7.0
20.0
12.0
9.0
7.0
20.0
12.0
9.0
7.0
30.0
20.0
Load Regulation
(% Typ)
12.8
8.3
6.8
6.3
12.8
8.3
6.8
6.3
12.8
8.3
6.8
6.3
15.0
12.8
(% Max)
15.0
15.0
15.0
15.0
15.0
15.0
15.0
15.0
15.0
15.0
15.0
15.0
20.0
15.0
Efficiency
(%, Typ)
69
76
78
78
71
74
78
79
72
77
77
79
70
73
Fuse Rating
Slow-Blow
(mA)
500
500
500
500
200
200
200
200
100
100
100
100
200
200
Other input/output combinations are available
(i.e. 3.3 VDC). Contact the factory for details at:
sales@micropowerdirect.com
Derating Curve
Notes:
1. Output load regulation is specified for a load change of 10% to 100%.
2. These units should not be operated with a load under 10% of full load. Operation at no-
load may cause damage to the unit.
3. These converters will operate without external components. However, when measuring out-
put ripple, it is recommended that
an external ceramic capacitor
be placed from the +Vout pin to
Vin
Input
Capacitor
Vout
Output
Capacitor
the -Vout pin. An input capacitor
will enhance stability over tem-
3.3 VDC
perature and input line variations. 5 VDC
4.7 µF 3.3 VDC 10.0 µF
4.7 µF 5 VDC 10.0 µF
Recommended capacitor values 12 VDC 2.2 µF 9 VDC 4.7 µF
are given in the table above. For 24 VDC
applications requiring very low
output noise levels, a simple LC
1.0 µF 12 VDC
15 VDC
2.2 µF
1.0 µF
filter should be effective.
4. After an output short circuit, the input power must be
recycled to operate the unit.
5. Given for frequency range of 5 to 500 Hz and PSD of 0.0248 g2/Hz. Mechanical Dimensions
Tested on X, Y & Z axis for 60 minutes.
6. It is recommended that a fuse be used on the input of a
power supply for protection. See the Model Selection
table above for the correct rating.
Pin Connections
Pin Description
1
-Vin
2
+Vin
3
-Vout
4
+Vout
Notes:
All dimensions are typical in inches (mm)
Tolerance x.xx = ±0.01 (±0.25)
Pin 1 is marked by a “dot” or indentation on the side of the unit
MicroPower Direct
We Power Your Success - For Less!
292 Page Street Ste D Stoughton, MA 02072 TEL: (781) 344-8226 FAX: (781) 344-8481 E-Mail: sales@micropowerdirect.com
 

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