ISOLATED DC/DC CONVERTERS
48 Vdc Input 1.2 Vdc - 3.3 Vdc/15 A, 5 Vdc/12 A, 12 Vdc/5 A Output, 1/8 Brick
Nov. 22, 2010
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Series
RoHS Compliant
0RCY-60T
Features
Isolated
Rev.B
High Efficiency
High Power Density
Fixed Frequency (300 KHz)
Low Cost
Input Under Voltage Lockout
Output Voltage Trim
Output Over Voltage Shutdown
OCP/SCP
Over Temperature Protection
Remote On/Off Logic (Optional)
Positive/Negative Remote Sence
Basic Isolation
Class 1, Category 2, Isolated DC/DC Converter (refer to IPC-9592)
UL60950-1 Recognized (UL/cUL) (Pending)
Applications
Networking
Computers and peripherals
Telecommunications
Description
The 0RCY-60T series are isolated dc/dc converters that operate from a nominal 48 Vdc source. These units will
provide up to 60 W of output power from a nominal 48 Vdc input. These units are designed to be highly efficient
and low cost. Features include remote on/off, short circuit protection, over current protection, over temperature
protection, input under voltage lockout, and output over voltage protection. These converters are provided in an
industry standard eighth brick package.
Part Selection
Output Voltage
12.0 Vdc
5.0 Vdc
3.3 Vdc
2.5 Vdc
1.8 Vdc
1.5 Vdc
1.2 Vdc
Input Voltage
36 Vdc - 75 Vdc
36 Vdc - 75 Vdc
36 Vdc - 75 Vdc
36 Vdc - 75 Vdc
36 Vdc - 75 Vdc
36 Vdc - 75 Vdc
36 Vdc - 75 Vdc
Max. Output
Current
5A
12 A
15 A
15 A
15 A
15 A
15 A
Max. Output
Power
60.0 W
60.0 W
50.0 W
37.5 W
27 W
22.5 W
18 W
Typical
Efficiency
91%
91%
89%
87%
85%
84%
82%
Model Number
Active High
0RCY-60T120
0RCY-60T050
0RCY-60T033
0RCY-60T025
0RCY-60TV80
0RCY-60TV50
0RCY-60TV20
Model Number
Active Low
0RCY-60T12L
0RCY-60T05L
0RCY-60T03L
0RCY-60T02L
0RCY-60TV8L
0RCY-60TV5L
0RCY-60TV2L
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
ISOLATED DC/DC CONVERTERS
48 Vdc Input 1.2 Vdc - 3.3 Vdc/15 A, 5 Vdc/12 A, 12 Vdc/5 A Output, 1/8 Brick
Nov. 22, 2010
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Part Number Explanation
0 R CY – 60 T xx x
1 2
3
4
5
6 7
1---Through hole mount
2---RoHS 6, change “R” to “7” means RoHS 5
3---Series name
4---Series code
5---Input range (36-75V)
6---Output voltage
7---Enable, “0” means active high, and “L” means active low
Absolute Maximum Ratings
Parameter
Input Voltage (continuous)
Input Voltage Transient (100 ms)
Remote On/Off
I/O isolation voltage
Ambient Temperature
Storage Temperature
Min
-0.3
-0.3
-2
-
-40
-55
Typ
-
-
-
-
-
-
Max
80
100
18
2000
85
125
Unit
V
V
V
V
C
C
Notes
Note:
Ratings used beyond the maximum ratings may cause a reliability degradation of the converter or may
permanently damage the device.
Input Specifications
Parameter
Input Voltage
Input Current (full load)
Vo=12.0 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
Input Current (no load)
Vo=12.0 V
Vo=5.0 V
Vo=3.3 V
Vo=2.5 V
Vo=1.2 V - 1.8 V
Remote Off Input Current
Input Reflected Ripple Current
(rms)
Input Reflected Ripple Current
(pk-pk)
I t Inrush Current Transient
Turn-on Voltage Threshold
Turn-off Voltage Threshold
2
Min
36
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
32
30
Typ
48
-
-
-
-
-
-
-
90
55
45
40
30
2
4
20
0.01
34
32
Max
75
3.0
2.8
2.6
2.0
1.4
1.2
0.9
130
75
70
70
60
5
10
40
0.02
35
34
Unit
V
A
A
A
A
A
A
A
mA
mA
mA
mA
mA
mA
mA
mA
As
V
V
2
Notes
With simulated source impedance of
10 uH; a 100uF/100V electrolytic
capacitor with ESR = 1 ohm max.
5 Hz to 20 MHz
Note:
All specifications are typical at 25
C
unless otherwise stated.
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
ISOLATED DC/DC CONVERTERS
48 Vdc Input 1.2 Vdc - 3.3 Vdc/15 A, 5 Vdc/12 A, 12 Vdc/5 A Output, 1/8 Brick
Nov. 22, 2010
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Output Specifications
Parameter
Output Voltage Set Point
V
O
=12.0 V
V
O
=5.0 V
Vo=3.3 V
V
O
=2.5 V
V
O
=1.8 V
Vo=1.5 V
Vo=1.2 V
Line Regulation
V
O
=12.0 V
V
O
=5.0 V
Vo=3.3 V
V
O
=2.5 V
V
O
=1.8 V
Vo=1.5 V
Vo=1.2 V
Load Regulation
V
O
=12.0 V
V
O
=5.0 V
Vo=3.3 V
V
O
=2.5 V
V
O
=1.8 V
Vo=1.5 V
Vo=1.2 V
Regulation Over Temperature
(-40
C
to +85
C)
V
O
=12.0 V
V
O
=5.0 V
Vo=3.3 V
V
O
=2.5 V
V
O
=1.8 V
Vo=1.5 V
V
O
=1.2 V
Output Current
V
O
=12.0 V
V
O
=5.0 V
Vo=3.3 V
V
O
=2.5 V
V
O
=1.8 V
Vo=1.5 V
Vo=1.2 V
Current Limit Threshold
V
O
=12.0 V
V
O
=5.0 V
Vo=3.3 V
V
O
=2.5 V
V
O
=1.8 V
Vo=1.5 V
Vo=1.2 V
Short Circuit Surge Transient
5.5
13.5
16
16
16
16
16
-
6.5
16
18
18
18
18
18
3
8
19
20
20
20
20
20
5
A
A
A
A
A
A
A
As
2
Min
11.760
4.925
3.250
2.463
1.773
1.478
1.182
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Typ
12.0
5.0
3.3
2.5
1.8
1.5
1.2
24
5
3
3
3
3
3
30
10
7
6
5
5
5
60
45
30
25
20
15
12
-
-
-
-
-
-
-
Max
12.240
5.075
3.350
2.538
1.827
1.523
1.218
48
10
7
7
7
7
7
60
20
15
12
10
10
10
100
75
50
40
30
25
20
5
12
15
15
15
15
15
Unit
V
V
V
V
V
V
V
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
Notes
Vin=48 V, Io=50% full load,
Ta=25
C.
-
-
-
-
-
-
-
0
0
0
0
0
0
0
mV
mV
mV
mV
mV
mV
mV
A
A
A
A
A
A
A
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
ISOLATED DC/DC CONVERTERS
48 Vdc Input 1.2 Vdc - 3.3 Vdc/15 A, 5 Vdc/12 A, 12 Vdc/5 A Output, 1/8 Brick
Nov. 22, 2010
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Output Specifications (continued)
Parameter
Ripple and Noise (rms)
V
O
=12.0 V
V
O
=5.0 V
Vo=3.3 V
V
O
=2.5 V
V
O
=1.8 V
Vo=1.5 V
Vo=1.2 V
Ripple and Noise (pk-pk)
V
O
=12.0 V
V
O
=5.0 V
Vo=3.3 V
V
O
=2.5 V
V
O
=1.8 V
Vo=1.5 V
Vo=1.2 V
Turn on Time
Overshoot at Turn on
Output Capacitance
V
O
=12.0 V
V
O
=5.0 V
Vo=3.3 V
V
O
=2.5 V
V
O
=1.8 V
Vo=1.5 V
Vo=1.2 V
Transient Response
25% ~ 50%
Max Load
50% ~ 25%
Max Load
25% ~ 50%
Max Load
50% ~ 25%
Max Load
25% ~ 50%
Max Load
50% ~ 25%
Max Load
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
V
O
=
1.2 V
- 3.3 V
V
O
=
5.0 V
V
O
=
12.0 V
-
-
-
-
-
-
-
-
-
-
-
-
300
400
300
400
200
300
200
300
150
200
150
200
400
500
400
500
230
400
230
400
200
250
200
250
mV
uS
mV
uS
mV
uS
mV
uS
mV
uS
mV
uS
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.
0
0
0
0
0
0
0
-
-
-
-
-
-
-
1000
10000
15000
15000
15000
15000
15000
Min
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Typ
25
25
15
12
10
10
10
100
95
55
55
45
45
45
15
0
Max
50
50
30
25
20
20
20
130
120
80
80
70
70
70
30
5
Unit
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mS
%
Notes
Test conditions: Vin=48 V, Ta=25
C,
with a 1uF ceramic capacitor
and a 10 uF Tantalum capacitor at
the output.
uF
Note:
All specifications are typical at nominal input, full load at 25°C unless otherwise stated.
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
ISOLATED DC/DC CONVERTERS
48 Vdc Input 1.2 Vdc - 3.3 Vdc/15 A, 5 Vdc/12 A, 12 Vdc/5 A Output, 1/8 Brick
Nov. 22, 2010
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
General Specifications
Parameter
Efficiency
V
O
=12.0 V
V
O
=5.0 V
V
O
=3.3 V
V
O
=2.5 V
V
O
=1.8 V
V
O
=1.5 V
V
O
=1.2 V
Switching Frequency
Isolation capacitance
Output Voltage Trim Range
Remote Sense Compesation
Over Temperature Protection
Over Voltage Protection
Weight
MTBF
Dimensions
Inches (L
×
W
×
H)
Millimeters (L
×
W
×
H)
2.30 x 0.896 x 0.411
58.42 x 22.86 x 10.45
-
88
88
87
85
83
82
80
270
-
80
-
-
-
-
91
91
89
87
85
84
82
300
1500
-
-
125
130
20
2,410,000
-
-
-
-
-
-
-
330
-
110
10
-
-
-
%
%
%
%
%
%
%
kHz
pF
%Vo
%Vo
C
%Vo
g
hours
Calculated Per Bell Core SR-332 (I
O
=
12 A, Vin=48 V, Vo=3.3 V, T
a
= 25
C,
No forced air)
Vin=48V, full load, in hiccup mode
The total voltage increased by trim
and remote sense should not exceed
10%Vo
Min
Typ
Max
Unit
Notes
Vin=48V, full load
Note:
All specifications are typical at 25
C
unless otherwise stated.
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
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