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SERIES MR
MILITARY DC-DC CONVERTERS

Hi Reliability, Ultra-Miniature, Isolated DC-DC Converters
-55ºC +85ºC Operating Temperature
Wide Input Range, All Units Shielded

 

Low Profile .300"
No Heat Sink or Electrical Derating Required

This series of high efficiency wide input range, encapsulated regulators come in 42 different models. Manufactured using high grade military components, this units will operate from -55º C to +85º C with no heat sink or electrical derating required. The 6 sided shielding and 32 pin DIP compatability combined with input/output isolation and the wide input range capabilities will meet your most stringent military requirements.

 

  • Diodes JAN TX
  • Transformers Manufactured to MIL-PRF-27, Grade 5, Class S
  • Capacitors MIL-C 55365/4, MIL-C 39003/03, MIL-C 20/27E, MIL-C 39014/05
  • Resistors MIL-R-39017, MIL-R-22097
  • IC Hermetically Sealed

 

TYPICAL CHARACTERISTICS:
  • Test conditions: 25º C ambient.
  • Operating temperature: -55º C to +85º C ambient.
  • Output voltage tolerance: ±1% at nominal input voltage
  • Output voltage temperature coefficient: 0.02%/ºC
  • Storage temperature: -55º C to +125º C
  • Short circuit protection: Temporary
  • Operating frequency: 40 Khtz, typ.

     

OPTIONS AVAILABLE PER MIL-STD-883
  • Stabilization Bake
  • Temperature Cycle
  • Hi Temperature Burn In 160 Hours at Full Power
 FEATURES
  • Voltage regulation over input range of

     

    Unit
    Low
    High
    MRE
    5V
    15V
    MRF
    8V
    24V
    MRA
    18V
    36V
     

     

  • Load regulation (see table for typical variation at different loads)
  • Line regulation = Typical values
  • 5-15V DC = ±1.0%
    8-24V DC = ±1.0%
    18-36V DC = ±2.0%
  • High efficiency - up to 78%
  • Will operate over a temperature range of -55º C to +85º C with no heat sink or electrical derating
  • 6 sided shielding
  • Isolation - 100 megohms at 500 Volts DC
  • External output trimming pin standard, +5%
  • Single and dual isolated outputs
  • Each unit is supplied with an external control pin. This "C" pin, when connected to the negative (-) input, will disable the unit, allowing for remote shutdown.

 

 

SERIES MR - SINGLE OUTPUT
PICO
Part
Number
Input
Volt.
Range
Output
Volt.
DC
Max.
Load
Current
(mA)
Max.
Output
Power
(watts)
Eff. @
Full
Load
Typical
(%)*
Input
Current
Full
Load
Typical
(mA)*
Output
Volt.
Ripple@
Full LD.
1-1 MHz BW
mv p-p
Output
Volt.
Tolerance
(± %)*
V LD.
Reg.
25%-100%
Load
(± %)*
Line
Regu-
lation
(± %)*
Price
(US $)
MRE3.3S
MRE5S
MRE5.2S
MRE9S
MRE12S
MRE15S
MRE24S
MRE28S
5-15
5-15
5-15
5-15
5-15
5-15
5-15
5-15
3.3
5
5.2
9
12
15
24
28
379
300
288
167
125
100
63
54
1.25
1.5
1.5
1.5
1.5
1.5
1.5
1.5
67
70
70
75
75
76
77
78
186
214
214
200
200
197
195
192
200
200
200
150
150
150
150
200
1.00
0.75
0.75
0.50
0.50
0.50
0.50
0.50
2.00
1.75
1.75
1.25
1.00
1.00
0.75
0.75
2.0
1.75
1.75
1.50
1.25
1.25
1.00
0.75
673.84
673.84
673.84
673.84
673.84
673.84
673.84
673.84
MRF3.3S
MRF5S
MRF5.2S
MRF9S
MRF12S
MRF15S
MRF24S
MRF28S
8-24
8-24
8-24
8-24
8-24
8-24
8-24
8-24
3.3
5
5.2
9
12
15
24
28
530
400
384
222
167
133
83
71
1.75
2.0
2.0
2.0
2.0
2.0
2.0
2.0
67
70
70
75
75
76
77
78
163
179
179
167
167
164
162
160
200
200
200
150
150
150
150
200
1.00
0.75
0.75
0.50
0.50
0.50
0.50
0.50
2.00
1.75
1.75
1.25
1.00
1.00
0.75
0.75
1.75
1.50
1.50
1.25
1.00
1.00
1.00
0.75
673.84
673.84
673.84
673.84
673.84
673.84
673.84
673.84
MRA3.3S
MRA5S
MRA5.2S
MRA9S
MRA12S
MRA15S
MRA24S
MRA28S
18-36
18-36
18-36
18-36
18-36
18-36
18-36
18-36
3.3
5
5.2
9
12
15
24
28
530
400
384
278
208
167
104
89
1.75
2.0
2.0
2.5
2.5
2.5
2.5
2.5
67
70
70
75
75
76
77
78
97
106
106
123
123
122
120
119
200
200
200
150
150
150
150
200
1.00
0.75
0.75
0.50
0.50
0.50
0.50
0.50
2.00
1.75
1.75
1.25
1.00
1.00
0.75
0.75
1.25
1.00
1.00
0.75
0.75
0.75
0.75
0.50
673.84
673.84
673.84
673.84
673.84
673.84
673.84
673.84
* Measurements taken with input voltage set at mid value.
10% minimum load required.

 

 

Larger Size Drawing




 

 

SERIES MR - DUAL OUTPUT
PICO
Part
Number
Input
Volt.
Range
Output
Volt.
DC
Per
Output
Max.
Load
Current
(mA)
Per
Output
Max.
Output
Power
(watts)
Per
Output
Eff. @
Full
Load
Typical
(%)*
Input
Current
Full
Load
Typical
(mA)*
Output
Volt.
Ripple@
Full LD.
1-1 MHz BW
mv p-p
Output
Volt.
Tolerance
(± %)*
V LD.
Reg.
25%-100%
Load
(± %)*
Line
Regu-
lation
(± %)*
Price
(US $)
MRE5D
MRE9D
MRE12D
MRE15D
MRE24D
MRE28D
5-15
5-15
5-15
5-15
5-15
5-15
5
9
12
15
24
28
150
84
63
50
32
27
0.75
0.75
0.75
0.75
0.75
0.75
70
75
75
76
77
78
214
200
200
197
195
192
200
150
150
150
150
200
0.75
0.50
0.50
0.50
0.50
0.50
1.75
1.25
1.00
1.00
0.75
0.75
1.75
1.50
1.25
1.25
1.00
0.75
762.96
762.96
762.96
762.96
762.96
762.96
MRF5D
MRF9D
MRF12D
MRF15D
MRF24D
MRF28D
8-24
8-24
8-24
8-24
8-24
8-24
5
9
12
15
24
28
200
111
84
67
42
36

1.00
1.00
1.00
1.00
1.00
1.00
70
75
75
76
77
78
179
167
167
164
162
160
200
150
150
150
150
200
0.75
0.50
0.50
0.50
0.50
0.50
1.75
1.25
1.00
1.00
0.75
0.75
1.50
1.25
1.00
1.00
1.00
0.75
762.96
762.96
762.96
762.96
762.96
762.96
MRA5D
MRA9D
MRA12D
MRA15D
MRA24D
MRA28D
18-36
18-36
18-36
18-36
18-36
18-36
5
9
12
15
24
28
200
139
104
84
52
45
1.00
1.25
1.25
1.25
1.25
1.25
70
75
75
76
77
78
106
123
123
122
120
119
200
150
150
150
150
200
0.75
0.50
0.50
0.50
0.50
0.50
1.75
1.25
1.00
1.00
0.75
0.75
1.00
0.75
0.75
0.75
0.75
0.50
762.96
762.96
762.96
762.96
762.96
762.96
* Measurements taken with input voltage set at mid value.
10% minimum load required.

 

 

Larger Size Drawing


 

 

Ordering Instructions:
  • No minimum.
    Net 30 days F.O.B. Pelham, NY

    Delivery--stock to one week for sample orders.

For immediate engineering assistance or to place an order:
Call Toll Free: 800-431-1064

PICO Electronics, Inc.

143 Sparks Ave. Pelham, NY 10803
Tel: 914-738-1400 or Fax: 914-738-8225