Delta Electronics S48SR User Manual
FEATURES
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y
f
A
High efficiency: 86% @ 3.3V/4.5A
Standard footprint: 2.0” ×1.0”
Industry standard pin out
Low profile
- Open Frame: 9.1mm (0.36”)
- Encapsulated: 10.7mm (0.42”)
Fixed frequency operation
Input UVLO, Output OCP, OVP
No minimum load required
2:1 input voltage range
ISO 9001, TL 9000, ISO 14001, QS9000,
OHSAS18001 certified manufacturing facility
UL/cUL 60950 (US & Canada) Recognized
and TUV (EN60950) Certified
CE mark meets 73/23/EEC and 93/68/EEC
directives
Delphi Series S48SR, 15W 2”x1” Family
DC/DC Power Modules: 48V in, 4.5A out
The Delphi Series S48SR, printed circuit board mounted, 48V input,
single output, isolated DC/DC converters are the latest offering from
one of the world’s largest power supply manufacturers ― Delta
Electronics, Inc. This product family provides up to 15 watts of powe
or up to 4.5A of output current (for 3.3V and below) in an industr
standard footprint. With creative design technology and optimization o
component placement, these converters possess outstanding
electrical and thermal performance, as well as extremely high
reliability under highly stressful operating conditions.
protected from abnormal input/output voltage and current conditions.
An encapsulated version is available for the most robust performance
in harsh environments.
ll models are
OPTIONS
Shorter pin length
APPLICATIONS
Telecom/DataCom
Wireless Networks
Optical Network Equipment
Server and Data Storage
Industrial/Test Equipment
DATABRIEF
DB_S48SR_07052006
1
Delta Electronics, Inc.
SPECIFICATIONS
GENERAL SPECIFICATIONS OUTPUT SPECIFICATIONS
Input Voltage 36~75V Voltage Accuracy Typical ±1%
Switching Frequency Typical (3.3V) 290KHz Line Regulation Typical ±0.1%
Isolation Voltage In/Out 1500V Load Regulation 0%~100% ±0.2%
Isolation
Isolation Resistance
MTBF Bellcore 3M hours
Size
Typical 500pF Ripple & Noise 20MHz BW Typical 50 mV
Minimum 100MΩ Current Limits Typical 150%
Over Voltage
Encapsulated 2.00”×1.00”×0.42” Voltage Trim +10%, -10%
Open Frame 1.93”×0.93”×0.36”
Typical 125%
PART NUMBERING SYSTEM
S 48 S R 3R3 04 E R F A
Form Factor Input
Voltage
S- Small
Power
Number of
Outputs
48V S- Single R- Thru-hole 1R8- 1.8V
Product
Series
Output
Voltage
2R5- 2.5V
3R3- 3.3V
050- 5.0V
120- 12V
Output
Current
01- 1.25A
02- 2.0A
03- 3.0A
04- 4.5A
05- 5.0A
ON/OFF
Logic
E- No ON/OFF
Control
Function
Pin
Length
R- 0.170”
N- 0.145”
K- 0.110”
Option Code
F- RoHS
6/6
(Lead
Free)
A- Encapsulated &
Trim
B- Encapsulated & No
Trim
C- Open Frame & Trim
D- Open Frame & No
Trim
MODEL LIST
MODEL NAME INPUT OUTPUT EFF @ 100% LOAD
S48SR1R805ERFA 36V~75V 0.5A 1.8V 5.0A 80.0%
S48SR2R504ERFA 36V~75V 0.5A 2.5V 4.5A 83.0%
S48SR3R303ERFA 36V~75V 0.5A 3.3V 3.0A 84.5%
S48SR3R304ERFA
S48SR05002ERFA 36V~75V 0.5A 5.0V 2.0A 85.0%
S48SR05003ERFA 36V~75V 0.6A 5.0V 3.0A 86.5%
S48SR12001ERFA 36V~75V 0.6A 12.0V 1.25A 86.5%
MECHANICAL DRAWING
36V~75V 0.6A 3.3V 4.5A 86.0%
Open Frame Version Encapsulated Version
CONTACT:
www.delta.com.tw/dcdc
USA:
Telephone:
East Coast: (888) 335 8201
West Coast: (888) 335 8208
Fax: (978) 656 3964
Email:
DCDC@delta-corp.com
Europe:
Phone: +41 31 998 53 11
Fax: +41 31 998 53 53
Email:
DCDC@delta-es.com
Asia & the rest of world:
Telephone: +886 3 4526107 ext 6220
Fax: +886 3 4513485
Email:
DCDC@delta.com.tw
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