07QB-C5T033G [BEL]
DC-DC Regulated Power Supply Module, 1 Output, 152W, Hybrid, QUARTER BRICK PAKAGE-8;
| 型号： | 07QB-C5T033G |
| 厂家： | 
BEL FUSE INC. |
| 描述： | DC-DC Regulated Power Supply Module, 1 Output, 152W, Hybrid, QUARTER BRICK PAKAGE-8 |
| 文件： | 总15页 (文件大小：508K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs
May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
0RQB-C5T Series
Features
RoHS Compliant
Rev.C
Output Over Voltage Shutdown
OCP/SCP
Isolated
High Efficiency
High Power Density
Low Cost
Over Temperature Protection
Remote On/Off
Input Under Voltage Lockout
Fixed Frequency (330 kHz)
Active Low/High (Option)
UL60950-1 Recognized (UL/cUL)
Output Voltage Trim
Positive/Negative Remote Sense
Input Over Voltage Lockout
Basic Isolation
Applications
Networking
Computers and peripherals
Telecommunications
Description
The 0RQB-C5T Series are isolated dc/dc converters that operate from a nominal 48 Vdc source. These units will
provide up to 150 W of output power from a nominal 48 Vdc input. These units are designed to be highly efficient
and low cost. Typical efficiency of 12 Vdc output at 48 Vdc input at full load is 93%. Features include remote
on/off, over current protection and under-voltage lockout. These converters are provided in an industry standard
quarter brick package.
Part Selection
Output
Input Voltage
Max. Output Max. Output
Typical
Efficiency
Model Number
Active High
Model Number
Active Low
Voltage
Current
Power
12 V
5.0 V
3.3 V
2.5 V
1.8 V
1.5 V
1.2 V
36 V - 75 V
36 V - 75 V
36 V - 75 V
36 V - 75 V
36 V - 75 V
36 V - 75 V
36 V - 75 V
12 A
144 W
93.0%
92.5%
91.0%
90.5%
88.0%
85.0%
83.0%
0RQB-C5T120
0RQB-C5T050
0RQB-C5T033
0RQB-C5T025
0RQB-C5TV80
0RQB-C5TV50
0RQB-C5TV20
0RQB-C5T12L
0RQB-C5T05L
0RQB-C5T03L
0RQB-C5T02L
0RQB-C5TV8L
0RQB-C5TV5L
0RQB-C5TV2L
30 A
46 A
50 A
50 A
50 A
50 A
150 W
152 W
125 W
90 W
75 W
60 W
Notes: Add “G” suffix at the end of the model number to indicate Tray Packaging.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
1
ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs
May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Part Number Explanation
0 R QB – C5 T xx x
1
2
3
4
5
6 7
1---Through hole
2---RoHS 6, change “R” to “7” means RoHS 5
3---Series name, 1/4 Brick
4---Series code
5---Input range 48V wide (36-75V)
6---Output voltage
7---Option, “x” of the model part number to be 0-9, A-Z, which will represent the special request of
customer.
Absolute Maximum Ratings
Unit
Parameter
Input Voltage (continuous)
Remote On/Off
Min
-0.3
-0.3
-
Typ
Max
80
Notes
-
-
-
-
-
V
V
18
I/O Isolation Voltage
Ambient Temperature
Storage Temperature
2000
85
V
-40
-55
C
C
125
Note: All specifications are typical at nominal input, full load at 25 C unless noted.
Input Specifications
Parameter
Min
Typ
Max
Unit
Notes
Input Voltage
Input Current (full load)
36
48
75
V
VO=12 V
VO=5.0 V
VO=3.3 V
VO=2.5 V
VO=1.8 V
VO=1.5 V
VO=1.2 V
-
-
-
-
-
-
-
-
-
-
-
-
-
-
4.5
4.9
4.9
4.1
3.0
2.6
2.1
A
A
A
A
A
A
A
Input Current (no load)
-
120
10
180
15
mA
mA
Remote Off Input Current
Tested with simulated source
impedance of 10 uH, 5 Hz to 20 MHz;
use a 100 uF /100 V electrolytic
capacitor with ESR = 1 ohm max. at
200 kHz at 25 C.
Input Reflected Ripple Current
(pk-pk)
-
-
10
15
3
mA
Input Reflected Ripple Current
(rms)
1.5
mA
I2t Inrush Current Transient
Turn-on Voltage Threshold
Turn-off Voltage Threshold
Input over voltage Lockout
-
0.05
34
0.1
35
34
80
A2s
V
32
30
76
32
V
78
V
Note: All specifications are typical at nominal input, full load at 25 C unless noted.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2
ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs
May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Output Specifications
Parameter
Min
Typ
Max
Unit
Notes
Output Voltage Set Point
VO=12 V 11.790
12.030
5.004
3.308
2.503
1.808
1.500
1.200
12.270
5.075
3.360
2.550
1.844
1.523
1.224
V
V
V
V
V
V
V
VO=5.0 V
4.925
3.260
2.450
1.770
1.477
1.176
VO=3.3 V
VO=2.5 V
VO=1.8 V
VO=1.5 V
VO=1.2 V
Vin=48V, Io=50% load
Over all operating input voltage,
Output Voltage Set Point
Line Regulation
-3.5
-
3.5
%Vo,set resistive load, and temperature
conditions.
8
5
3
15
15
6
VO=12 V
VO=5.0 V
VO=1.2 V-3.3 V
-
-
-
mV
mV
mV
Load Regulation
10
5
2
20
10
5
VO=5.0 V-12 V
VO=2.5 V-3.3 V
VO=1.2 V-1.8 V
-
-
-
mV
mV
mV
Regulation Over Temperature
(-40 C to +85 C)
60
40
30
20
15
100
65
50
40
30
-
-
-
-
-
mV
mV
mV
mV
mV
VO=12 V
VO=5.0 V
VO=3.3 V
VO=2.5 V
VO=1.8 V-1.2 V
Output Current
Vo=12 V
Vo=5.0 V
Vo=3.3 V
0
0
0
0
-
-
-
-
12
30
46
50
A
A
A
A
Vo=1.2 V-2.5 V
Current Limit Threshold
VO=12 V
VO=5.0 V
VO=3.3 V
14
35
50
55
15.5
40
60
18
45
65
65
A
A
A
A
VO=1.2 V-2.5 V
Short Circuit Surge Transient
Ripple and Noise (rms)
60
-
3
5
A2s
VO=12 V
VO=5.0 V
VO=3.3 V
-
-
-
-
25
20
20
15
30
25
20
20
mV
mV
mV
VO=1.2 V-2.5 V
mV
Test conditions:
0-20 MHz BW, with a 1 uF
ceramic capacitor and a 10 uF
Tantalum capacitor at the output.
Ripple and Noise (pk-pk)
VO=12 V
VO=5.0 V
VO=3.3 V
VO=1.8 V
Vo=2.5 V
VO=1.5 V
VO=1.2 V
70
60
50
45
40
55
40
90
80
70
60
60
70
60
mV
mV
mV
mV
mV
mV
mV
-
-
-
-
-
-
Turn on Time
10
-
-
100
5
mS
%
Overshoot at Turn on
0
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
3
ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs
May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Output Specifications (continued)
Parameter
Min
Typ
Max
Unit
Notes
Output Capacitance
VO=12.0 V
0
0
0
-
-
-
2200
10000
20000
uF
uF
uF
VO=5.0 V
VO=1.2 V-3.3 V
Transient Response
Overshoot
Settling Time
Overshoot
-
-
-
600
200
600
200
250
100
250
100
100
200
100
200
100
300
100
300
100
200
100
200
100
200
100
200
800
300
800
300
375
200
375
200
200
300
200
300
200
400
200
400
140
300
140
300
120
300
120
300
mV
uS
50% ~ 75%
Max Load
VO=12.0 V
VO=5.0 V
VO=3.3 V
VO=2.5 V
mV
uS
75% ~ 50%
Max Load
Settling Time
Overshoot
-
-
mV
uS
50% ~ 75%
Max Load
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Settling Time
Overshoot
mV
uS
75% ~ 50%
Max Load
Settling Time
Overshoot
mV
uS
50% ~ 75%
Max Load
Settling Time
Overshoot
mV
uS
75% ~ 50%
Max Load
Test conditions: di/dt = 0.1
A/uS, Vin=48 V, with a 1 uF
ceramic capacitor and a 10 uF
Tantalum capacitor at the
output.
Settling Time
Overshoot
mV
uS
50% ~ 75%
Max Load
Settling Time
Overshoot
mV
uS
75% ~ 50%
Max Load
Settling Time
Overshoot
mV
uS
50% ~ 75%
Max Load
Settling Time
Overshoot
Vo=1.8 V
VO=1.5 V
mV
uS
75% ~ 50%
Max Load
Settling Time
Overshoot
mV
uS
50% ~ 75%
Max Load
Settling Time
Overshoot
VO=1.2 V
mV
uS
75% ~ 50%
Max Load
Settling Time
Note: All specifications are typical at nominal input, full load at 25 C unless noted.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
4
ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs
May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
General Specifications
Parameter
Min
Typ
Max
Unit
Notes
Efficiency
VO=12 V
90
89
88
87
85
82
80
93
92.5
91
90.5
88
-
-
-
-
-
-
-
%
%
%
%
%
%
%
VO=5.0 V
VO=3.3 V
VO=2.5 V
VO=1.8 V
VO=1.5 V
VO=1.2 V
Vin=48V, full load
85
83
Switching Frequency
Isolation capacitance
280
-
330
380
-
kHz
pF
1500
Input to Output Isolation Voltage
-
-
2000
V
The total voltage increased by trim
and remote sense should not exceed
10%Vo.
Remote Sense Compesation
Output Voltage Trim Range
Over Temperature Protection
Over Voltage Protection
-
80
-
-
10
% Vo
% Vo
C
-
110
125
130
-
-
-
% Vo Vin=48V, full load, Hiccup mode
Calculated Per Bell Core SR-332 (IO
=80% load, Vin=48 V, Vo=3.3 V; Ta =
MTBF
1,109,917
Hours
25 C)
Dimensions
Inches (L × W × H)
-
2.30 x 1.45 x 0.395
Millimeters (L × W × H)
58.42 x 36.83 x 10.03
Weight
-
41
-
g
Note: All specifications are typical at nominal input, full load at 25 C unless noted.
Remote On/Off
Parameter
Min
Typ
Max
Unit
Notes
Signal Low (Unit On)
-0.3
-
0.8
V
0RQB-C5TxxL.
The remote on/off pin open, Unit off.
Active Low
Active High
Signal High (Unit Off)
Signal Low (Unit Off)
Signal High (Unit On)
Current Sink
2.4
-0.3
2.4
0
-
-
-
-
18
0.8
18
V
V
0RQB-C5Txx0.
The remote on/off pin open, Unit on.
V
0.75
mA
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
5
ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs
May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Output Trim Equations
Trim Resistor Calculate
Equations for calculating the trim resistor are shown below (Unit: kΩ). The Trim Down resistor should be
connected between the Trim pin and Ground pin. The Trim Up resistor should be connected between the Trim
pin and the Vout. Only one of the resistors should be used for any given application.
1) For Vo=1.5 V – 12 V:
Vout
511
Rtrimdown
10.22
Module
Module
Trim
GND
delta
Rtrimdown
Rtrimup
(100 delta)Vo5.11 626
1.225 delta
Rtrimup
10.22
Vout
Trim
GND
Note:
Vo_ req Vo
100 %
delta
Vo
Vo_req=Desired (trimmed) output voltage [V]; Vo=output voltage
Vo=12.006 V for 12 V output; Vo=5.000 V for 5 V output; Vo=3.308 V for 3.3 V output; Vo=2.505 V for 2.5 V
output; Vo=1.804 V for 1.8 V output; Vo=1.503 V for 1.5 V output
2) For Vo=1.2 V:
(100 delta)Vo5.11 313
0.6125 delta
511
Rtrimup
10.22
Rtrimdown
10.22
delta
Note:
Vo_ req Vo
100 %
delta
Vo
Vo_req=Desired (trimmed) output voltage [V]; Vo=output voltage
Vo=1.202 V for 1.2 V output
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
6
ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs
May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Output Trim Equations (continued)
Trim Voltage Calculate
Equations for calculating the external trim voltage are shown below (Unit: V).
1) For Vo=1.5 V – 12 V:
Vout
Trim
GND
2.45
Module
Vtrim
Vo _ req 1.225 [V ]
Vo
Vtrim
Note:
Vo_req=Desired (trimmed) output voltage [V]; Vo=output voltage
Vo=12.006 V for 12 V output; Vo=5.000 V for 5 V output; Vo=3.308 V for 3.3 V output; Vo=2.505 V for 2.5 V
output; Vo=1.804 V for 1.8 V output; Vo=1.503 V for 1.5 V output
2) For Vo=1.2 V:
Vout
1.226
Module
Trim
GND
Vtrim
Vo_req0.614
V
Vo
Vtrim
Note:
Vo_req=Desired (trimmed) output voltage [V]; Vo=output voltage
Vo=1.202 V for 1.2 V output
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
7
ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs
May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Efficiency Data
90.0%
85.0%
80.0%
75.0%
70.0%
65.0%
60.0%
55.0%
50.0%
90.0%
85.0%
80.0%
75.0%
70.0%
65.0%
60.0%
55.0%
50.0%
36 V
48 V
75 V
36 V
48 V
75 V
5.00
12.50
25.00
37.50
50.00
5.00
12.50
25.00
37.50
50.00
OUTPUT CURRENT(A)
OUTPUT CURRENT(A)
0RQB-C5TV2x
0RQB-C5TV5x
95%
90%
85%
80%
75%
70%
95%
90%
85%
80%
75%
70%
36 V
36 V
48 V
75 V
48 V
75 V
5
13
25
38
50
5
13
25
38
50
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
0RQB-C5TV8x
0RQB-C5T02x
95%
90%
85%
80%
75%
70%
95%
90%
85%
80%
75%
70%
36 V
48 V
75 V
36 V
48 V
75 V
5
11
23
34
46
3
8
15
23
30
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
0RQB-C5T03x
0RQB-C5T05x
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
8
ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs
May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Efficiency Data (continued)
95%
90%
85%
80%
75%
70%
36 V
48 V
75 V
1
3
6
9
12
OUTPUT CURRENT (A)
0RQB-C5T12x
Thermal Derating Curves
Vin=48V, with maximum junction temperature of semiconductors derated to 120 degree C.
0RQB-C5Txxx
0RQB-C5T12x
0RQB-C5T05x
0RQB-C5T03x
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
9
ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs
May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Thermal Derating Curves (continued)
0RQB-C5T02x
0RQB-C5TV8x
0RQB-C5TV5x
0RQB-C5TV2x
Thermal Reference
Note: TH1, TH2, TH3 and TH4 are hot spots which should not exceed 115 degree C.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
10
ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs
May 17, 2011
Ripple and Noise Waveforms
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Ripple and noise at full load, 1.2 V/50 A output
Ripple and noise at full load, 1.8 V/50 A output
Ripple and noise at full load, 3.3 V/46 A output
Ripple and noise at full load, 1.5 V/50 A output
Ripple and noise at full load, 2.5 V/45 A output
Ripple and noise at full load, 5.0 V/30 A output
Ripple and noise at full load, 12 V/12 A output
Note: Ripple and noise is tested with a 1 uF ceramic cap and a 10 uF tantalum capat output, Ta=25 deg C.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
11
ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs
May 17, 2011
Transient Response Waveforms
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Vout= 1.2 V 50%-75% Load Transients
Vout= 1.2 V 75%-50% Load Transients
Vout= 1.5 V 50%-75% Load Transients
Vout= 1.5 V 75%-50% Load Transients
Vout= 1.8 V 50%-75% Load Transients
Vout= 1.8 V 75%-50% Load Transients
Vout= 2.5 V 50%-75% Load Transients
Vout= 2.5 V 75%-50% Load Transients
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
12
ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs
May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Transient Response Waveforms (continued)
Vout= 3.3 V 50%-75% Load Transients
Vout= 3.3 V 75%-50% Load Transients
Vout= 5.0 V 50%-75% Load Transients
Vout= 5.0 V 75%-50% Load Transients
Vout= 12 V 50%-75% Load Transients
Vout= 12 V 75%-50% Load Transients
Note: Transient response at Vin=48 V, di/dt = 0.1 A/uS, with a 1 uF ceramic capacitor and a 10 uF Tantalum capacitor at the
output, Ta=25 deg C.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
13
ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs
May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Mechanical Outline
Pin Connections
Pin
Function
Pin Size
0.04"
1
Vin (+)
2
3
Remote On/Off
Vin (-)
0.04"
0.04"
4
5
6
Vout (-)
Remote Sense (-)
Trim
0.062"
0.04"
0.04"
7
8
Remote Sense (+)
Vout (+)
0.04"
0.062"
Note: This module is recommended and compatible with Pb-Free Wave Soldering and must be soldered
using a peak solder temperature of no more than 260 ºC for less than 5 seconds.
Note:
1) All Pins: Material - Copper Alloy;
Finish – 3 micro inches minimum Gold over 50 micro inches minimum Nickel plate.
2) Undimensioned components are shown for visual reference only.
3) All dimensions in inches (mm); Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm) x.xxx +/-0.010 in. (x.xx +/-0.25mm).
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
14
ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs
May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Revision History
Date
Revision
Changes Detail
Approval
2011-05-17
C
Add trim equation for external trim voltage.
JZ Wang
RoHS Compliance
Complies with the European Directive 2002/95/EC, calling for the elimination of lead and
other hazardous substances from electronic products.
2011 Bel Fuse Inc. Specifications subject to change without notice. 051711
15
CORPORATE
FAR EAST
EUROPE
Bel Fuse Inc.
Bel Fuse Ltd.
Bel Fuse Europe Ltd.
206 Van Vorst Street
Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
8F/ 8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel 852-2328-5515
Fax 852-2352-3706
www.belfuse.com
Preston Technology Management Centre
Marsh Lane, Suite G7, Preston
Lancashire, PR1 8UD, U.K.
Tel 44-1772-556601
Fax 44-1772-888366
www.belfuse.com
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