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Total Power

Part No.

Dimensions

Single Outputs: 50-200W

VI-LC

– 

8.6" x 2.5" x 0.99"

(218,4 x 63,5 x 25,2mm)

100-400W

VI-MC

– 

8.6" x 4.9" x 0.99"

(218,4 x 124,5 x 25,2mm)

300-600W

VI-NC

– 

8.6" x 7.3" x 0.99"

(218,4 x 185,4 x 25,2mm)

Dual Outputs:

100-400W

VI-PC

– 

8.6" x 4.9" x 0.99"

(218,4 x 124,5 x 25,2mm)

150-600W

VI-QC

– 

8.6" x 7.3" x 0.99"

(218,4 x 185,4 x 25,2mm)

Triple Outputs: 150-600W

VI-RC

– 

8.6" x 7.3" x 0.99"

(218,4 x 185,4 x 25,2mm)

Product Highlights

ComPAC delivers up to 600W from

one, two, or three outputs in a package

just 0.99” (25,2mm) in height with the

field proven performance, high

efficiency and high reliability inherent

in Vicor’s component level power

converters. ComPAC meets British

Telecom and European norms for input

surge withstand and meets conducted

emissions of EN55022 Class B.

ComPAC is offered with input voltage

ranges optimized for industrial and

telecommunication applications and

provides extended input overvoltage

capability, input reverse polarity

protection, undervoltage lockout, and

master disable. 

Features

Inputs 24, 48, and 300Vdc

Any output: 1 to 95Vdc

Input surge withstand:

British Telecom BTR 2511, 

EN-61000-4-5

Meets British Telecom BTR 2511,

EN55022 Class B conducted emissions

UL, CSA, TÜV (IEC 950)

CE marked

80-90% efficiency

Up to 10W/cubic inch

Reverse polarity protected

Master disable

Overvoltage shutdown

DC-DC Switchers

50 to 600W 

1-3 Outputs

Input Voltage

Nominal

Range

1 = 24V

21 - 32V (1)

W = 24V

18 - 36V (1)

3 = 48V

42 - 60V (2)

N = 48V

36 - 76V (2)

6 = 300V 200 - 400V (2)

Output Voltage

Z 2V

M 10V

K 40V

Y 3.3V

1 12V

4 48V

0 5V

P 13.8V H 52V

X 5.2V

2 15V

F 72V

W 5.5V

N 18.5V D 85V

V 5.8V

3 24V

B 95V

T 6.5V

L 28V

R 7.5V

J 36V

Output Power/Current

V

out

5V

V

out

< 5V

W = 100W

20A

V = 150W

30A

U = 200W

40A

S = 300W

60A

Q = 400W

80A

Output Power/Current

V

out

5V

V

out 

< 5V

S = 300W

60A

P = 450W

90A

M = 600W

120A

Product Grade

E  = -10°C to +85°C 

C = -25°C to +85°C

I = -40°C to +85°C

M = -55°C to +85°C

Output Power/Current

V

out

5V

V

out

< 5V

Y = 50W

10A

X = 75W

15A

W = 100W

20A

V = 150W

30A

U = 200W

40A

ComPAC Configuration Chart

Use the configuration chart at the right to define your

Vicor part number(s).

C o m PA C

Max

5V

<5V 

output for

Outputs

Outputs

(1)

150W

30A

(2)

200W

40A

Conduction Cooled Models Available

Add "-CC" to the end of the part number.

(Consult factory for details.)

Long Term Safe Operating Area Curves 

(1% duty cycle max. Z

s

=0.5

Ω; 

for short duration transient capability refer to page 3.)

0.1          1        10ms      100      1000

800V

Normal Operating Area

I.S.W.

Full Load

300V Input

S.D.

R.E.

500V

400V

200V

500ms

276V

Normal Operating Area

I.S.W.

Full Load

0.1          1        10ms      100       1000

48V Wide Range Input

R.E.

76V

125V

36V

S.D.

S.D.

100V

500ms

0.1          1        10ms      100      1000

100V

Normal Operating Area

I.S.W.

Full Load

100V

Standard

Wide Range

24V Inputs

R.E.

32V

21V

36V

18V

S.D.

160V

0.1          1        10ms      100      1000

Normal Operating Area

I.S.W.

Full Load

48V Input

R.E.

S.D.

60V

100V

42V

I.S.W.: Input surge withstand, no degradation of performance. R.E.:  Ratings Exceeded S.D.: Shutdown

ComPAC   10/02    1 of 4

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ComPAC Specifications

(Typical at 25°C, nominal line and 75% load, unless otherwise specified)

E-GRADE

C-, I-, M-GRADE

PARAMETER

MIN

TYP

MAX

MIN

TYP

MAX

BROWNOUT*

TRANSIENT**

UNITS

NOTES

Input Characteristics

24V 

21

24

32

21

24

32

18

36

Vdc

See Fusing Information below

24V Wide

18

24

36

18

24

36

n/a

n/a

Vdc

See Fusing Information below

48V 

42

48

60

42

48

60

36

72

Vdc

See Fusing Information below

48V Wide 

36

48

76

36

48

76

n/a

n/a

Vdc

See Fusing Information below

300V 

200

300

400

200

300

400

170

425

Vdc

See Fusing Information below

No load power dissipation

3

1.35

2

1.35

2

Watts

Master disable input current

3

4

4

mA

Sink or source into disable 

(Absolute max., 20 mA)

optocoupler

Quiescent Input current 

logic disable

3

7

10

7

10

mA

Current drawn from source 

when disabled

Reverse polarity protection

No damage to unit with 

external fuse

Output Characteristics (applies to each output individually)

Setpoint accuracy

1%

2%

0.5%

1%

V

NOM

Load/line regulation

0.5%

0.05%

0.2%

V

NOM

LL to HL, 10% to full load

Load/line regulation

1%

0.2%

0.5%

V

NOM

LL to HL, no load to full load

Output temperature drift

0.02

0.01

0.02

%/°C

Over rated temperature

Long term drift

0.02

0.02

%/1k hours

Output ripple 

2V, 3.3V

150mV

60mV

100mV

Vp-p

20 MHz bandwidth

5V

5%

2%

3%

Vp-p

20 MHz bandwidth

10-48V

3%

0.75%

1.5%

Vp-p

20 MHz bandwidth

Output voltage trimming

1

50%

110%

50%

110%

Total remote sense

compensation

1

0.5

0.5

Volts

0.25V max. neg. leg

OVP set point

125%

115%

125%

135%

V

NOM

Recycle power 

Current limit

105%

135%

105%

125%

I

NOM

Automatic restart

Short circuit current

2

20%

140%

20%

130%

I

NOM

Thermal Characteristics

Efficiency

78-88%

80-90%

@5V and higher

Shutdown temp. — case

90

95

105

90

95

105

°C

Cool and recycle power to restart

Operating temp. — case

85

85

°C

See Thermal Curves

Isolation Characteristics

Isolation 

Input to output

4,242

4,242

Vdc

Output to case

707

707

Vdc

Input to case

2,121

2,121

Vdc

Mechanical Specifications

Weight

3

19.2 (544)

19.2 (544)

Ounces (Grams)

Fusing Information

Input voltage

24V

48V

300V

LC series (200W)

10A

7A

2A

MC, PC series (400W)

20A

15A

4A

NC, QC, RC series (600W)

35A

25A

6A

Safety Agency Approvals

UL, CSA, TÜV, VDE, IEC 950, CE Marked

Environmental Characteristics/Product Grade Designators (Temperatures apply to product case.)

E-Grade

C-Grade

I-Grade

M-Grade

Storage temperature

-20°C to +100°C

-40°C to +100°C

-55°C to +100°C

-65°C to +100°C

Operating temperature

-10°C to +85°C

-25°C to +85°C

-40°C to +85°C

-55°C to +85°C

EMI / EMC Characteristics (Performed on selected samples representative of the ComPac product family.)

Input surge withstand

(Up to 200 mS, Z

s

= .5

, no interruption of performance, see: Long Term Safe Operating Area Curves, pg.2) 

IEC 61000-4-5 level 2

Conducted Emissions

British Telecom BTR 2511, Issue 2

EN 55022, class B

ESD

IEC 61000-4-2 level 4

*Brownout 75% of rated load.

**Transient voltage for one second.

1

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

2

Output voltages of 5V or less incorporate foldback current limiting, outputs greater than 5V incorporate straight line current limiting.

3

For MC, PC series, multiply by 2; for NC, QC, RC series, multiply by 3.

ComPAC   10/02    2 of 4

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Thermal Curves, 5V Output 

(Standard heatsink)

Thermal Curves, 10V to 48V Output 

(Standard heatsink)

0

25

50

75

100

125

150

175

200

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

85

Ambient Temperature (Deg. C)

Output P

o

w

e

r (W

atts)

0

50

100

150

200

250

300

350

400

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

85

Ambient Temperature (Deg. C)

Output P

o

w

er (W

atts)

0

75

150

225

300

375

450

525

600

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

85

Ambient Temperature (Deg. C)

Output P

o

w

er (W

atts)

0

25

50

75

100

125

150

175

200

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

85

Ambient Temperature (Deg. C)

Output P

o

w

er (W

atts)

0

50

100

150

200

250

300

350

400

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

85

Ambient Temperature (Deg. C)

Output P

o

w

e

r (W

atts)

0

75

150

225

300

375

450

525

600

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

85

Ambient Temperature (Deg. C)

Output P

o

w

e

r (W

atts)

FREE AIR 

50 LFM

100 LFM

250 LFM

500 LFM

750 LFM

1000 LFM

Ambient Temperature (Deg. C)

Ambient Temperature (Deg. C)

Ambient Temperature (Deg. C)

Ambient Temperature (Deg. C)

Ambient Temperature (Deg. C)

LC Series

MC, PC Series

NC, QC, RC Series

LC Series

MC, PC Series

NC, QC, RC Series

Ambient Temperature (Deg. C)

Output Power (W

atts)

Output Power (W

atts)

Output Power (W

atts)

Output Power (W

atts)

Output Power (W

atts)

Output Power (W

atts)

FREE AIR 

50 LFM

100 LFM

250 LFM

500 LFM

750 LFM

1000 LFM

Thermal Curves, 5V Output 

(H1 heatsink)

Thermal Curves, 10 to 48V Output 

(H1 heatsink)

0

75

150

225

300

375

450

525

600

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

85

Ambient Temperature (Deg. C)

Output P

o

w

e

r (W

atts)

0

25

50

75

100

125

150

175

200

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

85

Ambient Temperature (Deg. C)

Output P

o

w

er (W

atts)

0

50

100

150

200

250

300

350

400

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

85

Ambient Temperature (Deg. C)

Output P

o

w

e

r (W

atts)

0

75

150

225

300

375

450

525

600

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

85

Ambient Temperature (Deg. C)

Output P

o

w

er (W

atts)

0

25

50

75

100

125

150

175

200

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

85

Ambient Temperature (Deg. C)

Output P

o

w

er (W

atts)

0

50

100

150

200

250

300

350

400

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

85

Ambient Temperature (Deg. C)

Output P

o

w

er (W

atts)

Ambient Temperature (Deg. C)

Ambient Temperature (Deg. C)

Ambient Temperature (Deg. C)

Ambient Temperature (Deg. C)

Ambient Temperature (Deg. C)

Ambient Temperature (Deg. C)

LC Series

MC, PC Series

NC, QC, RC Series

LC Series

MC, PC Series

NC, QC, RC Series

FREE AIR 

50 LFM

100 LFM

250 LFM

500 LFM

750 LFM

1000 LFM

FREE AIR 

50 LFM

100 LFM

250 LFM

500 LFM

750 LFM

1000 LFM

Output Power (W

atts)

Output Power (W

atts)

Output Power (W

atts)

Output Power (W

atts)

Output Power (W

atts)

Output Power (W

atts)

ComPAC   10/02    3 of 4

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Mechanical Drawings

OPTIONAL HEATSINK (H1)

STANDARD UNITS

1.12

(28,4)

1.37

(34,80)

0.99

(25,15)

0.5

(12,57)

0.41

(10,4)

9.25

±

.120

(235,0 

±

3,05)

8.63

±

.025

(219,2

±

,64)

      

INPUTS

1

Ground

2

-Input

3

+Input

4

Disable-

5

Disable+

     OUTPUTS

A

+Output

B

+Sense

C

Trim

D

-Sense

E

-Output

0.5

(12,57)

Measure case temperature on this surface.

0.41 (10,41)

2.11 (53,59)

1.53 (38,86)

1.14 (28,96)

0.75 (19,05)

12

ø0.150 

±

 0.005 THRU 4 PLACES

(ø3,81 

±

 0,13)

1

2

3

4

5

2.156

(54,76)

0.18

(4,6)

2.76

(70,1)

6.00

(152,4)

0.91

23,1)

2.54

(64,5)

0.20

(5,1)

0.19

(4,8)

0.20

(5,1)

E

D

C

B

A

0.25 TYP 

#8-32 STUD

 2 PLACES

OUTPUT 1

(

0.41 (10,41)

4.53 (115,06)

3.95 (100,33)

3.56 (90,42)

3.17 (80,52)

2.83 (71,88)

2.11 (53,59)

1.53 (38,86)

1.14 (28,96)

0.75 (19,05)

12

ø0.150 

±

 0.005 THRU 5 PLACES

(ø3,81 

±

 0,13)

#10-32 STUD

 2 PLACES

1

2

3

4

5

3.58

(90,9)

3.04

(77,2)

4.96

(126,0)

4.562

(115,87)

0.18

(4,6)

6.00

(152,4)

2.76

(70,1)

2.281

(57,94)

0.20

(5,1)

0.19

(4,8)

#8-32 STUD

 4 PLACES

A

E

D

C

B

A

E

D

C

B

4.

0.25 TYP 

A

E

D

C

B

OUTPUT 1

OUTPUT 2

OUTPUT 1

12

ø0.150 

±

 0.005 THRU 6 PLACES

(ø3,81 

±

 0,13)

1

2

3

4

5

4.96

(126,0)

4.42

(112,3)

7.380

(187,45)

0.18

(4,6)

6.00

(152,4)

2.76

(70,1)

7.00

(177,8)

2.288

(58,12)

2.420

(61,47)

0.20

(5,1)

0.19

(4,8)

A

E

D

C

B

A

E

D

C

B

A

E

D

C

B

0.41 (10,41)

6.95 (176,53)

6.37 (161,80)

5.98 (151,89)

5.59 (141,99)

5.25 (133,35)

4.53 (115,06)

3.95 (100,33)

3.56 (90,42)

3.17 (80,52)

2.83 (71,88)

2.11 (53,59)

1.53 (38,86)

1.14 (28,96)

0.75 (19,05)

#10-32 STUD

 2 PLACES

#8-32 STUD

 6 PLACES

0.25 TYP 

D

C

B

A

E

D

C

B

A

A

E

D

C

B

E

#10-32 STUD

 2 PLACES

#8-32 STUD

 2 PLACES

OUTPUT 1

OUTPUT 2

OUTPUT 1

OUTPUT 1

OUTPUT 2

OUTPUT 3

All Models

LC Series

MC, PC Series

NC, QC, RC Series

Standard Heatsink

Optional Heatsink (H1)

ComPAC   10/02    4 of 4