E121E MPD [MicroPower Direct, LLC], E121E Datasheet - Page 2

• Manufacturer Part Number: E121E
• Description: Low Cost, 1W Ultra-Miniature SIP DC/DC Converters
• Manufacturer: MPD [MicroPower Direct, LLC]

Model Selection Guide
Notes:
1. Output load regulation is specifi ed for a load change of 10% to 100%.
2. These units should not be operated with a load under 10% of full load.
3. These converters will oper-
4. It is recommended that a fuse be used on the input of a
Notes:
•
•
•
E101E
E102E
E103E
E104E
E111E
E112E
E113E
E114E
E121E
E122E
E123E
E124E
E125E
Number
Operation at no-load may cause damage to the unit.
ate without external com-
ponents. However, when
measuring output ripple,
it is recommended that an
external ceramic capaci-
tor be placed from the
+Vout pin to the -Vout
pin. An input capacitor
will enhance stability over
temperature and input line variations. Recommended capacitor values
are given in the table above. For applications requiring very low output
noise levels, a simple LC fi lter should be effective.
power supply for protection. See the Model Selection
table above for the correct rating.
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
Model
(i.e. 3.3 VDC). Contact the factory for details at:
Other input/output combinations are available
Pin Connections
Nominal
Pin
Voltage (VDC)
12
12
12
12
24
24
24
24
24
1
2
3
4
5
5
5
5
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292 Page Street Ste D Stoughton, MA 02072
MicroPower Direct
10.8 - 13.2
10.8 - 13.2
10.8 - 13.2
10.8 - 13.2
21.6 - 26.4
21.6 - 26.4
21.6 - 26.4
21.6 - 26.4
21.6 - 26.4
Description
4.5 - 5.5
4.5 - 5.5
4.5 - 5.5
4.5 - 5.5
Range
+Vout
-Vout
+Vin
-Vin
12 VDC
24 VDC
5 VDC
Vin
Input
Full-Load No-Load
Capacitor
250
253
262
250
107
104
103
105
Current (mA)
53
52
51
53
52
4.7 µF
2.2 µF
1.0 µF
Input
www.micropowerdirect.com
12 VDC
15 VDC
24 VDC
5 VDC
9 VDC
Vout
20
20
20
20
16
16
16
16
7
7
7
7
7
Mechanical Dimensions
Capacitor
Voltage
Output
10.0 µF
0.47 µF
4.7 µF
2.2 µF
1.0 µF
(VDC)
12.0
15.0
12.0
15.0
12.0
15.0
24.0
5.0
9.0
5.0
9.0
5.0
9.0
(mA, Max)
Derating Curve
•
Current
200.0
111.0
200.0
111.0
200.0
111.0
Output
83.0
67.0
83.0
67.0
83.0
67.0
42.0
TEL: [phone]
(mA, Min)
Current
20.0
12.0
20.0
12.0
20.0
12.0
9.0
7.0
9.0
7.0
9.0
7.0
4.0
•
Regulation
(% Max)
FAX: [phone]
Load
15
15
15
15
15
15
15
15
15
15
15
15
15
Effi ciency
(%, Typ)
78
79
80
78
78
80
81
79
79
80
81
79
80
•
E-Mail: [e-mail]
Fuse Rating
Slow-Blow
(mA)
500
500
500
500
200
200
200
200
100
100
100
100
100