Model Selection Guide
Input
Model
Number
A101ERU
A102ERU
A103ERU
A104ERU
A105ERU
A106ERU
A107ERU
A108ERU
A111ERU
A112ERU
A113ERU
A114ERU
A115ERU
A116ERU
A117ERU
A118ERU
Voltage (VDC)
Current (mA)
Output
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Efficiency
(%, Typ)
73
75
78
80
81
73
78
79
72
74
77
79
80
72
77
78
Fuse Rating
Slow-Blow
(mA)
200
200
200
200
200
200
200
200
150
150
150
150
150
150
150
150
Voltage Current
Current
Nominal
Range
Full-Load No-Load (VDC) (mA, Max) (mA, Min)
24
9.0 - 36.0
86
20
3.3
500
50.0
24
9.0 - 36.0
83
20
5.0
300
30.0
24
9.0 - 36.0
80
20
9.0
167
17.0
24
9.0 - 36.0
78
20
12.0
125
12.0
24
9.0 - 36.0
77
20
15.0
100
10.0
24
9.0 - 36.0
85
20
±5.0
±150
±15.0
24
9.0 - 36.0
80
20
±12.0
±63
±6.0
24
9.0 - 36.0
79
20
±15.0
±50
±5.0
48
18.0 - 72.0
43
10
3.3
500
50.0
48
18.0 - 72.0
42
10
5.0
300
30.0
48
18.0 - 72.0
40
10
5.0
167
17.0
48
18.0 - 72.0
39
10
12.0
125
12.0
48
18.0 - 72.0
39
10
15.0
100
10.0
48
18.0 - 72.0
43
10
±5.0
±150
±15.0
48
18.0 - 72.0
40
10
±12.0
±63
±6.0
48
18.0 - 72.0
40
10
±15.0
±50
±5.0
For models with a metal case, add an
“M” to the model number (ie: A115ERUM)
Notes:
1. Exceeding the input range by a significant margin may damage the units. For 24V input the
input voltage should not exceed 40V; for 48V models it should not exceed 80V.
2. When measuring output ripple, it is recommended that an external 0.33
µF
ceramic capacitor
be placed from the +Vout pin to the -Vout pin for single output units and from each output to common
for dual output units.
3. The optional metal package is nickel plated steel. Dimensions are 1.25 x 0.80 x 0.39 Inches (31.8 x
20.3 x 10.0 mm).
4. These units should not be operated with a load under the specified minimum. Operation at
no-load will increase ripple significantly and may cause damage to the unit.
5. These converters are specified for operation without external components. However, in some
applications the addition of input/output capacitors will enhance stability and reduce output
ripple. Recommended capacitor values are:
Derating Curve
Vin
(VDC)
Input
Capacitor
Sing
10
µF
Dual 10 ~ 47
µF
Sing
10
µF
Dual 10 ~ 47
µF
Vout
(VDC)
Output Capacitor
0 to +70ºC
(Electrolytic)
-40 to +85ºC
(Tantalum)
Mechanical Dimensions
24
48
3.3
5
12
15
100
µF
100
µF
100
µF
100
µF
47
µF
47
µF
47
µF
47
µF
For applications requiring very low output noise levels, a simple LC filter should
be effective.
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
2, 3
9
10
11
14
15
16
22, 23
Single
-Vin
No Pin
NC
NC
+Vout
NC
-Vout
+Vin
Dual
-Vin
Common
NC
-Vout
+Vout
NC
Common
+Vin
NC: No Connection
Mechanical Notes:
MicroPower Direct
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292 Page Street Ste D Stoughton, MA 02072
•
•
All dimensions are typical in inches (mm)
•
Tolerance x.xx = ±0.01 (±0.25)
TEL: (781) 344-8226
•
FAX: (781) 344-8481
•
E-Mail: sales@micropowerdirect.com
MPD [ MICROPOWER DIRECT, LLC ]
