
2
SPECIFICATIONS
GENERAL SPECIFICATIONS OUTPUT SPECIFICATIONS
Input Voltage 36~75V Voltage Accuracy Typical ±1%
Switching Frequency Typical (3.3V) 300KHz Line Regulation Typical ±0.1%
Isolation Voltage In/Out 1500V Load Regulation 0%~100% ±0.2%
Isolation
Typical 500pF Ripple & Noise 20MHz BW Typical 50 mV
Isolation Resistance
Minimum 100MΩ Current Limits Typical 150%
MTBF Bellcore 3M hours
Over Voltage
Typical 125%
Size 45.5x28.0x12.2mm 1.79”x1.10 ”×0.48” Voltage Trim +10%, -10%
PART NUMBERING SYSTEM
S 48 S S 3R3 04 N R F A
Form
Factor
Input
Voltage
Number of
Outputs
Product
Series
Output
Voltage
Output
Current
ON/OFF
Logic
Pin Length Option
Code
S- Small
Power
48V S- Single S- SMD
1R8-1.8V
2R5- 2.5V
3R3- 3.3V
050- 5.0V
120- 12V
01- 1.25A
02- 2.0A
03- 3.0A
04- 4.5A
05- 5.0A
N- Negative
P- Positive
R- SMD Pin
F- RoHS 6/6
(Lead Free)
A- Standard
Function
MODEL LIST
MODEL NAME INPUT OUTPUT EFF @ 100% LOAD
S48SS1R805NRFA 36V~75V 0.5A 1.8V 5.0A 80.0%
S48SS2R504NRFA 36V~75V 0.5A 2.5V 4.5A 83.0%
S48SS3R303NRFA 36V~75V 0.5A 3.3V 3.0A 84.0%
S48SS3R304NRFA 36V~75V 0.6A 3.3V 4.5A 86.0%
S48SS05002NRFA 36V~75V 0.5A 5.0V 2.0A 84.0%
S48SS05003NRFA
36V~75V 0.6A 5.0V 3.0A 86.5%
S48SS12001NRFA 36V~75V 0.6A 12V 1.25A 86.5%
MECHANICAL DRAWING
CONTACT: www.delta.com.tw/dcdc
USA:
Telephone:
East Coast: (888) 335 8201
West Coast: (888) 335 8208
Fax: (978) 656 3964
Email:
Europe:
Phone: +41 31 998 53 11
Fax: +41 31 998 53 53
Email:
Asia & the rest of world:
Telephone: +886 3 4526107 ext 6220
Fax: +886 3 4513485
Email:
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