2
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
Typical 2000 pF Ripple & Noise Typical 50 mV
Isolation Resistance Minimum 10M Ohms Current Limits Typical 135%
MTBF Bellcore 1.17M hours
Over Voltage Typical
130%
OTP Typical 130°C Voltage Trim +10%, -10%
Size (2.28”×1.45”×0.33”) 57.9x36.8x8.5mm
PART NUMBERING SYSTEM
Q 48 D B 120 03 N R F A
Type of
Product
Input
Voltage
Number of
Outputs
Product
Series
Output
Voltage
Output
Current
ON/OFF
Logic
Pin Length Option Code
Q - Quarter
Brick
48V D – Dual
Output
B – Bipolar
output
120 - 12V
03-2.7A
N- Negative
P- Positive
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
Email:
DCDC@delta-corp.com
Europe:
Telephone: +41 31 998 53 11
Fax: +41 31 998 53 53
Email:
DCDC@delta-es.tw
Asia & the rest of world:
Telephone: +886 3 4526107 ext 6220
Fax: +886 3 4513485
Email:
DCDC@delta.com.tw
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.
