Delta Electronics E48SB User Manual

FEATURES

 High efficiency: 96.3% @ 12V/20A
 Size: 58.4mm x 22.8mm x 11.4mm

(2.30”x0.90” x0.45”)

 Industry standard pin out
 Fully protected: Input UVLO, OVP, Output

OCP and OTP

 Parallelable for higher output power
 2250V isolation
 Basic insulation
 Monotonic startup
 No minimum load required
 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 E48SB, Eighth Brick Bus Converter
DC/DC Power Modules: 48V in, 240W out

The Delphi Series E48SB, Eighth Brick sized, 48V input, single
output, open frame bus converters are the latest offering from a world
leader in power systems technology and manufacturing -- Delta
Electronics, Inc. This product features an input voltage range of 38V to
55V and provides up to 240 watts of power or up to 25A of output current
in an industry standard footprint. This product represents the next
generation of design technology that supports the intermediate bus
architecture to power multiple downstream non-isolated point-of-load
(POL) converters. With creative design technology and optimization of
component placement, these converters possess outstanding electrical
and thermal performance, as well as extremely high reliability under
stressful operating conditions. All modules carry a full set of international
safety approvals. An optional heatsink is available for extreme thermal
requirements.

OPTIONS

 Positive On/Off logic
 Short pin lengths

 Heatsink available for extended

operation

 OTP and OCP mode (auto restart or

latch-up)

APPLICATIONS

 Datacom / Networking
 Wireless Networks
 Optical Network Equipment
 Server and Data Storage
 Industrial/Testing Equipment

Databrief
DB_E48SB_05222008

SPECIFICATIONS

GENERAL SPECIFICATIONS OUTPUT SPECIFICATIONS

Input Voltage 38V~55V Voltage Set Point Typical Vin/n
Switching Frequency Typical 200 KHz E48SB120 8.9V~13.75V
Isolation Voltage In/Out 2250V E48SB9R6 7.0V~11V
Isolation Resistance Minimum 10M Ohms
MTBF Bellcore 2.01 Load Regulation Typical 300mV
OTP Typical 130°C Ripple & Noise Typical 100 mV
Size (2.30”×0.90”×0.45”) 58.4x22.8x11.4mm Load Limits Typical 120% of load

Total Output Range

PART NUMBERING SYSTEM

E 48 S B 120 20 N R F A

Type of

Product

E - Eighth

Brick

Input

Voltage

48 -

38V~55V

Number of

Outputs

S - Single Bus Converter 120 - 12V

Product

Series

Output

Voltage

9R6 - 9.6V

Output

Current

20 - 20A
25 - 25A

ON/OFF

Logic

N - Negative

(Default)

P - Positive

Pin

Length

R- 0.170”
(Default)
N- 0.145”
K- 0.110”

C- 0.180”

Option Code

F- RoHS 6/6

(Lead Free)

A - OCP, OTP hiccup
B - OCP, OTP latch-up

MODEL LIST

Model Name INPUT OUTPUT Eff. @ 100% LOAD

E48SB12020NRFA 38V~55V 6.5A 12V 20A 96.3%

E48SB9R625NRFA 38V~55V 6.5A 9.6V 25A 96.5%

MECHANICAL DRAWING

CONTACT: www.delta.com.tw/dcdc

USA:

Telephone:
East Coast: [phone]
West Coast: [phone]
Fax: [phone]
Email: [e-mail]

Europe:

Phone: [phone]
Fax: [phone]
Email: [e-mail]

WARRANTY

Delta offers a two (2) year limited warranty. Complete warranty information is listed on our web site or is available upon request from Delta.
Information furnished by Delta is believed to be accurate and reliable. However, no responsibility is assumed by Delt a for its use, nor for any infringements
of patents or other rights of third parties, which may result from its use. No license is granted by implication or otherwise under any patent or patent rights
of Delta. Delta reserves the right to revise these specifications at any time, without notice.

Asia & the rest of world:

Telephone: [phone] ext 6220
Fax: [phone]
Email: [e-mail]

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