Delta Electronics Q48DB User Manual
FEATURES
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High efficiency: 90%@ ±12V/2.7A
Size: 57.9mm x 36.8mm x 8.5mm
(2.28”×1.45”×0.33”)
Industry standard pin out
Fixed frequency operation
Input UVLO, Output OCP, OVP, OTP
Basic insulation
No minimum load required
Adjustable output voltage
ISO 9001, TL 9000, ISO 14001, QS 9000,
OHSAS 18001 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 Q48DB, 65W Quarter Brick Dual Output
DC/DC Power Modules: 48V in, ±12V Output
The Delphi Series Q48DB Quarter Brick, 48V input, positive and negative
bipolar dual output, and isolated DC/DC converters are the latest offering
from a world leader in power system and technology and manufacturing ―
Delta Electronics, Inc. This product family provides positive and negative
bipolar output (output voltage is 12V) and up to 65 watts of power in an
industry standard quarter brick package size. Both output channels can be
used independently. With creative design technology and optimization o
component placement, these converters possess outstanding electrical
and thermal performance, as well as extremely high reliability under highl
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.
OPTIONS
Positive On/Off logic
Short pin lengths available
APPLICATIONS
Telecom/DataCom
Wireless networks
Optical network equipment
Server and data storage
Industrial/Test Equipment
DATABRIEF
DB_Q48DB_04262006
1
Delta Electronics, Inc.
SPECIFICATIONS
GENERAL SPECIFICATIONS OUTPUT SPECIFICATIONS
Input Voltage 36~75V Voltage Accuracy Typical ±1.5%
Switching Frequency Typical 300KHz Line Regulation Typical (balance load) ±0.5%
Isolation Voltage In/Out 1500V Load & Cross Regulation Typical (balance load) ±1%
Isolation Capacitance
Isolation Resistance Minimum 10M Ohms Current Limits Typical 135%
MTBF Bellcore 1.17M hours
OTP Typical 130°C Voltage Trim +10%, -10%
Size (2.28”×1.45”×0.33”) 57.9x36.8x8.5mm
Typical 2000 pF Ripple & Noise Typical 50 mV
Over Voltage Typical
130%
PART NUMBERING SYSTEM
Q 48 D B 120 03 N R F A
Type of
Product
Q - Quarter
Brick
Input
Voltage
Number of
Outputs
48V D – Dual
Output
Product
Series
B – Bipolar
output
Output
Voltage
120 - 12V
Output
Current
03-2.7A N- Negative
ON/OFF
Logic
P- Positive
Pin Length Option Code
R- 0.150”
N- 0.145”
K- 0.110”
F- RoHS 6/6
(Lead Free)
A- Standard
Functions
MODEL LIST
MODEL NAME INPUT OUTPUT Efficiency @ Full Load
Q48DB12003NRFA 36V~75V 2.4A ± 12V 2.7A 90%
MECHANICAL DRAWING
CONTACT: www.delta.com.tw/dcdc
USA:
Telephone:
East Coast: (888) 335 8201
West Coast: (888) 335 8208
Fax: (978) 656 3964
DCDC@delta-corp.com
Email:
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 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 implication or
otherwise under any patent or patent rights of Delta. Delta reserves the right to revise these specifications at any time, without notice.
Europe:
Telephone: +41 31 998 53 11
Fax: +41 31 998 53 53
DCDC@delta-es.tw
Email:
Asia & the rest of world:
Telephone: +886 3 4526107 ext 6220
Fax: +886 3 4513485
DCDC@delta.com.tw
Email:
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