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Product Highlights

The MI-J00 family of miniaturized 

DC-DC converters is designed for

military applications utilizing

distributed power architectures.

Based on Vicor’s 1st Generation

family of zero-current/zero-voltage

switching, component-level, 

DC-DC converters, the MI-J00

family offers state-of-the-art

performance in terms of power

density, efficiency, noise, ease of

use, and reliability.

The MI-J00 family is designed to

exceed all steady-state, transient

and under/overvoltage

requirements of MIL-STD-704D/E

for both 28Vdc input (MI-J20) and 

270Vdc input (MI-J60), and the

worst case envelope of DOD-STD-

1399A for 155Vdc input. 

The output voltage can be externally

trimmed or programmed from

50% to 110% of nominal output.

Current limiting, remote sense,

and an inhibit pin all combine to

offer a high degree of protection,

versatility, and reliability for

military power systems.

All units are manufactured 

in ISO 9001-registered facilities.

Full epoxy encapsulation in

Vicor’s industry standard 

package enables the MI-J00

family units to meet MIL-STD-810

environmental testing

requirements for humidity,

fungus, salt fog, explosive

atmosphere, acceleration,

vibration, and shock. (See page 32.)

MI-J00

TM

Military DC-DC Converters 10 to 50W

Inputs:

28Vdc per MIL-STD-704D/E

155Vdc per MIL-STD-1399A

270Vdc per MIL-STD-704D/E

Single output: 2 – 48Vdc

Up to 23W/in

3

MIL-STD-810 environments

Up to 90% efficiency

Remote sense

Current limit

ZVS/ZCS power architecture

Low noise FM control

Size: 2.28" x 2.4" x 0.5"

(57,9 x 61,0 x 12,7mm)

PARAMETER

MIN

TYP

MAX

UNITS

TEST CONDITIONS

Input Characteristics

Input voltage range

See input voltage chart

No load power dissipation

1.35

2.0

Watts

Output Characteristics

Set point accuracy

0.5

1.0

% Vnom

Load/line regulation

0.05

0.2

% Vnom

LL to HL, 10% to FL

0.2

0.5

% Vnom

LL to HL, NL to 10%

Output temperature drift

0.01

0.02

%/°C

Output noise - pp

1.0

1.5

% Vnom

Whichever is greater

100

150 mV 20MHz 

BW

Output voltage trimming

(1)

50

110

% Vnom

Remote sense compensation

0.5

Vdc

OVP set point

N/A

Current limit

105

125

% Inom

Auto restart

Short circuit current

105

130

% Inom

Control Pin Characteristics

Gate-in high threshold

6

Vdc

Gate-in low threshold

0.65

Vdc

Gate-in low current

6

mA

Isolation Characteristics

Isolation (input to output)

3,000

Vrms

Isolation (output to baseplate)

500

Vrms

Isolation (input to baseplate)

1,500

Vrms

Input/output capacitance

50

75

pF

Environmental (MIL-STD-810)

Altitude - method 500.2

70,000 

feet

Procedure II

Humidity - method 507.2

86/240

% /hours

Procedure 1, cycle 1

Acceleration - method 513.3

g's

Procedure 2

Vibration - method 514.3

20

g's

Procedure 1, category 6

Shock - method 516.3

40

g's

Procedure 1

Reliability (MIL-HDBK-217F)

25°C Ground Benign: G.B.

2,871,050

hours

50°C Naval Sheltered: N.S.

667,568

hours

65°C Airborne Inhabited Cargo: A.I.C.

559,855

hours

Thermal Characteristics

Efficiency

80-90

%

Baseplate to sink

0.14

°C/W

With thermal pads

Thermal shutdown

N/A

Baseplate operating temperature

+100

°C

See product grade 

Storage temperature

+125

°C

See product grade 

Mechanical Specifications

Weight

3.0 (85)

ounces (grams)

Converter Specifications

(At TBP = 25°C, nominal line and 75% load, unless otherwise specified)

(1)

10V, 12V, and 15V outputs, standard trim range ±10%. Consult factory for wider trim range.

}

Features

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Configuration Chart

MI - J

-

Semi-custom modules available:

Consult factory.

(1) 16V operation at 75% load.

(2) These units rated at 75% 

load from 125-150Vin:

MI-J6Z-xY

MI-J6Y-xY

MI-J60-xY

28Vdc input per MIL-STD 704D/E

155Vdc input per DOD-STD-1399A

270Vdc input per MIL-STD-704D/E

Product Grade Specifications

5

6

7

8

9

4

3

2

1

0.080 Dia (2) places

Solder plate

over copper alloy

0.040 (1,0) Dia (7) places

Solder plate

over copper alloy

.01

Aluminum Base

Product ID

this surface

Function

  +In

  –In

 +Out

 Trim

–Sense

 –Out

Pin #

  1

  2

  3

  4

  5

  6

  7

  8

  9

FULL R

+0.030 (0,76)

-0.000 (0)

 (5,6) Min.

(7,6) Min.

(44,4) Max.

2.40 

2.28

0.12

0.50 

1.90

0.65

(16,5)

0.49

(12,4)

0.30

±

0.015

  (7,6)

±

(0,38)

0.15

2.10

(53,4)

1.30

0.40

(10,2)

0.35

±

 0.015

 (8,9)

±

(0,38)

1.40

(35,6)

1.00

(25,4)

0.70

 (17,8)

  Gate In

  Gate Out

  +Sense

MI-J00

 (57,9)

 (33,0)

 (3,8)

0.15

 (3,8)

0.30 

(61,0)

1.75 

 (48,3)

0.22

 (3,0)

(12,7)

*Test data available for review or download from vicorpower.com

Mechanical Drawing

Output Power/Current

5V

<5V

A

=

10W

o

Z

=

25W

5A

Y

=

50W

10A

Product Grade

Operating Temp.

I = 

-40°C to +100°C

M

=

-55°C to +100°C

PARAMETER

PRODUCT GRADE

I - Grade M - Grade 

Storage temperature

-55°C to +125°C

-65°C to +125°C

Operating temperature (baseplate)

-40°C to +100°C

-55°C to +100°C

Power cycling burn-in

12 hours, 25 cycles

96 hours, 200 cycles

Temperature cycled with power off

48 hours, 12-16 cycles 

48 hours, 12-16 cycles

-55°C to +100°C

-65°C to +100°C

Test data supplied at these temperatures*

-40°C, +80°C

-55°C, +80°C

Warranty

2 years

2 years

Environmental compliance

MIL-STD-810

MIL-STD-810

Derating

NAVMAT P-4855-1A

NAVMAT P- 4855-1A

Input Voltage

Nominal

Range

Transient

2 =

28V

18 – 50V

(1)

60V

5 = 155V

100 – 210V

230V

6 = 270V

125 – 400V

(2)

475V

7 = 165V

100 – 310V

Output Voltage

Z = 2V

T = 6.5V

N = 18.5V

Y = 3.3V

R = 7.5V

3 = 24V

0 = 5V

M= 10V

L = 28V

X = 5.2V

1 = 12V

J = 36V

W= 5.5V

P = 13.8V

K = 40V

V = 5.8V

2 = 15V

4 = 48V

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