Reliability
Incorporated
Product Data Sheet
1 and 2 Watt SB Series
DC/DC Converters
Key Features
� Standard SIP Package
� High Density / Compact size
� Efficiencies up to 80%
� Thru Hole mounting
� 1000 VDC input/output isolation
� No derating to 71�C Operating Temperature
Applications
� Distributed Power Systems
� Data-communications Equipment
� Telecommunications Equipment
� Computer Systems
� Industrial Control Systems
The "SB" Series of DC/DC converters feature 1 to 2 Watts of isolated power combining compact size and high
efficiency. The small size of this 7 pin SIP package saves valuable board space in new product design. With
single or dual outputs, the SB series is ideal for a variety of demanding requirements such as those found in
the data-com/telecom, industrial control, computing, transportation, or office automation industries.
The size and pin out conform to internationally recognized packaging that is an industry standard. Operating
from a nominal 5, 12, 24 or 48 VDC input source, this PCB mountable, low profile miniature converter provides
single or dual unregulated, isolated outputs varying from 5 to 15VDC. It is designed to meet or exceed a
variety of safety and emissions requirements including CE (LVD), EN 55022 "Class A", and UL 1950.
Reliability Incorporated also provides custom designed DC/DC Converters to meet customer specifications.
Reliability Incorporated is based in Houston, Texas, USA and is a leading provider of semiconductor
processing equipment and DC/DC converters. Corporate headquarters, located in Houston, TX, USA. DC/DC
converters are manufactured in Costa Rica.
General Electrical Specifications
(Specifications at Nominal Input and 25 C, nominal input voltage and rated output current unless otherwise noted.)
Parameter
Limits
Conditions
Output Voltage Accuracy
See selection guide column 4.
Nominal Line, Full Load
Input / Output Isolation
1000VDC
For 60 seconds, 1500VDC SB24U20 only
Minimum Load
10% of Full Load
Output Ripple & Noise
<100 mV Peak to Peak (max)
20 MHz Bandwidth
Load Regulation
7% typical (varies by model, consult
factory for details)
10% to 100% of Full Load, Nominal Line
Line Regulation
1.2% output change per 1% input
voltage change (max.)
Full Load
Efficiency
75% typical
Nominal Line
Operating Temperature
-25
� C to +85� C
Ambient Temperature
Storage Temperature
-55
� C to 125� C
Ambient Temperature
Temperature Coefficient
� 0.02%/�C
Output VDC
Short Circuit Protection
Intermittent (<2 sec)
Self Recovering
CE
LVD
EMC / RFI
Input Capacitor
SB Series.doc 5/21/2004
Reliability
Incorporated
SB Series.doc 5/21/2004
Single Output
Dual Output Models
1
+ input
1
+ input
2
- input
2
- input-
4 -
output
4
- output
6 +
output
5
com
6
+ output
Alternative Pin Connections & Mechanical Dimensions (dimensions in inches)
1 2
.020"
.010"
SECTION A-A
(SCALE: NONE)
1 2
1 2
.020"
.010"
SECTION A-A
(SCALE: NONE)
1 2
5
7
5
7
6
.425" MAX
.425" MAX
Maximum
Thickness
A
A
.750" MAX
.750" MAX
.20" MIN.
.20" MIN.
.10" .30"
.20"
.10" .30"
0.290"
.10" .10"
.06"
.06"
.08"
.08"
Style 3*
Style 4*
2SB5U9
SB12U15-15
2SB24U9
* Styles 3 and 4 are coated, not potted in shells.
Single Output
Dual Output Models
1
+ input
1
+ input
2
- input
2
- input
5 -
output
5
- output
7 +
output
6
com
7
+ output
Reliability Incorporated Locations
Headquarters
Sales
Far East Sales
Reliability Incorporated
P.O. Box 218370
Houston, Texas 77218
USA
Tel: 281 492-0550
Fax 281 492-0615
www.relinc.com
Reliability Incorporated
Tel: 281 492-0550
Fax 281 492-0615
dcdcinfo@relinc.com
www.dc-dcpower.com
Reliability Singapore Pte. Ltd.
Blk 103 Boon Keng Rd.
Singapore 339774
Tel: 65 299 4938
Fax: 65 299 4829
Copyright� 2003, Reliability Incorporated. Reliability reserves the right to make changes in the product at any time, without notification
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