Delta Electronics H48SN User Manual

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FEATURES

 High efficiency: 91% @ 28V/12.5A
 Standard footprint:

61.0x57.9x12.7mm (2.40”×2.28”×0.5”)

 Industry standard pin out
 Fixed frequency operation
 Metal baseplate
 Fully protected: OTP, OCP, OVP, UVLO
 2:1 input voltage range
 Basic insulation
 2250V isolation
 ISO 9001, TL 9000, ISO 14001, QS 9000,

OHSAS 18001 certified manufacturing
facility

 UL/cUL 60950-1 (US & Canada)

recognized, and TUV (EN60950-1)
certified

 CE mark meets 73/23/EEC and

93/68/EEC directive

Delphi Series H48SN, 350W Half Brick Family
DC/DC Power Modules: 48V in, 28V/12.5A out

The Delphi Series H48SN Half Brick, 48V input, single output, isolated
DC/DC converters are the latest offering from a world leader in power
systems technology and manufacturing -- Delta Electronics, Inc. This
product family provides up to 350 watts of power in an industry
standard footprint. It provides 91% efficiency for 28V at full load. With
creative design technology and optimization of component placement,
these converters possess outstanding electrical and thermal
performance, as well as extremely high reliability under highly stressful
operating conditions. All models are fully protected from abnormal
input/output voltage, current, and temperature conditions. The Delphi
Series converters meet all safety requirements with basic insulation. A
variety of optional heatsinks are available for extended thermal
operation, as well as for use in higher air flow applications: 200 to 400
LFM.

OPTIONS

 Positive on/off logic
 Short pin length

APPLICATIONS

 Telecom / DataCom
 Wireless Networks
 Optical Network Equipment
 Server and Data Storage
 Industrial / Test Equipment

DATABRIEF
DB_H48SN_01172008

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SPECIFICATIONS

Input voltage
Frequency Line regulation Typical 350KHz Typical ±0.01%
Isolation Capacitance Load regulation In/Out 2250V Typical ±0.05%
MTBF Ripple & noise Bellcore TBD Typical 150 mV

36~75V Voltage accuracy Typical ±1.0%

Typical OTP Current limits Typical 115°C 130%
Typical Size Voltage Trim (2.40”×2.28”×0.50”) 61.0 x 57.9 x 12.7mm +10%, -40%

PART NUMBERING SYSTEM

H 48 S N 280

Form

Factor

H- Half

Brick

Input

Voltage

48V S- Single N- 350W

Number of

Outputs

Product

Series

series

Output

Voltage

280- 28V 12- 12.5A N- Negative R- 0.170”

12

Output

Current

P- Positive N- 0.145”

N R

ON/OFF Pin

Logic

Length

K- 0.110”

F A

Option Code

F- RoHS 6/6

(Lead Free)
Space - RoHS
5/6

A - Standard
Functions
B= no thread
heatsink mounting
hole

MODEL LIST

MODEL NAME INPUT OUTPUT EFF @ 100% LOAD

H48SN28012NRFA 36V~75V 12.5A 28V 12.5A

91%

MECHANICAL DRAWING

CONTACT

USA:

Telephone:
East Coast: [phone]
West Coast: [phone]
Fax: [phone]
Email:

: www.delta.com.tw/dcdc

[e-mail]

Europe:

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

Asia & the rest of world:

Telephone: [phone] ext 6220
Fax: [phone]
Email:

WARRANTY

Delta offers a two (2) year limited warranty. Complete warranty information is listed on our web site or is available up on request from
Delta.
Information furnished by Delta is believed to be accurate and reliable. However, no responsi bility is assumed by Delta 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 impl ication or
otherwise under any patent or patent rights of Delta. Delta reserves th e right to revise these specifications at any time, without
notice.

[e-mail]

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