DFC25 SERIES
SINGLE OUTPUT
DESCRIPTION
FEATURES
The DFC25 Series DC/DC converter provides tightly regulated
output voltages for industrial and datacom applications from 12, 24,
or 48 Volt inputs. Available output power ranges from 24.75 to 30
watts. Excellent noise performance is attained via an aluminum case,
toroidal magnetics, and double shielded transformers. Common
mode and differential mode input filtering is integral to the design.
Selected models provide 1544 volts isolation from the input to output.
• Up to 30 Watts Output Power
• Remote ON/OFF
• Common and Differential Mode Input Filters
• +3.3, +5V, or +12V Outputs
• Remote Voltage Sense
• Efficiencies to 81%
• Operation from -25°C to 85°C
• 700/1544V Isolation
• Two Year Warranty
• UL/CSA/TÜV
The input and output sections of the DFC25 Series are protected
from overvoltage transients via internal circuitry. Same voltage
models of the DFC25 family may be connected in parallel to
achieve additional output current.
BOTTOM VIEW
SIDE VIEW
0.040 (1.02) DIA
6 PLACES
Selection Chart
2.50
(63.5)
Input Range
VDC
Output
VDC
Output
9
8
7
6
5
2.75
(70.0)
Model
mA MAX
Min
9
Max
18
Nominal
3.3
DFC25E12S3.3
DFC25E24S5
DFC25E48S5
DFC25E48S12
7500
6000
6000
2500
18
36
36
36
5
72
5
72
12
3.00
(76.2)
General Specifications (1)
All Models
Units
Isolation (3)
2
1
4
0.25
(6.3)
0.00
Isolation Voltage
Input to Output
12V, 24V Input
48V Input
10µA Leakage
MIN
MIN
700
1544
Volts
pF
Input to Output Capacitance
Remote ON/OFF
TYP
700
ON Logic Level or Pin Open
MIN
2.5
0.7
10
Volts
Volts
mA
Off Logic Level or Tie to -Input MAX
PIN CONNECTIONS
PIN NUMBER
PIN OUT
-INPUT
+INPUT
N/C
ON/OFF
TRIM
+OUTPUT
-OUTPUT
N/C
Converter Idle Current
Output Trim Function
Input Resistance
TYP
NOTE: All pins are 0.040"
1
2
3
4
5
6
7
8
9
diameter brass with tin plating.
TYP
MIN
40
kΩ
Mechanical tolerances unless
otherwise noted:
X.XX dimensions: 0.0ꢀ0 inches
X.XXX dimensions: 0.00ꢁ inches
Programming Range
Environmental
±10
%
MIN
MAX
-25
+60
Case Operating Range (2)
Case Functional Range
Storage Range
°C
°C
MIN
MAX
-40
+105
N/C
MIN
MAX
-45
+105
°C
NOTES
(1) All parameters measured at 25°C, nominal input voltage, and
full rated load unless otherwise noted.
Thermal Impedance
General
TYP
10
°C/Watt
(2) Derate linearly to 0 Watts at 105°C ambient. Operation to +70°C
ambient with externally supplied forced air cooling, 100LFM.
(3) Case is tied to -Input, Pin 1.
MTBF (Calculated)
Unit Weight
TYP
TYP
1,000,000
2.6/71
Hours
oz/gm
Rev. 04/ꢀ000
1