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2B2424XS Datasheet(PDF) 4 Page - Microdc power Technology Co., Ltd

Part # 2B2424XS
Description  Fixed Input,Isolated 2W Single Output DC/DC Converters
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Manufacturer  MICRODC [Microdc power Technology Co., Ltd]
Direct Link  http://www.microdc.cn/
Logo MICRODC - Microdc power Technology Co., Ltd

2B2424XS Datasheet(HTML) 4 Page - Microdc power Technology Co., Ltd

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2B
2B-X
-X(S)D
(S)D
Series
Series
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 4 of 5
PACKAGE
PACKAGE SPECIFICATIONS
SPECIFICATIONS
MECHANICAL
MECHANICAL DIMENSIONS
DIMENSIONS
SIP
SIP Package
Package
DIP
DIP Package
Package
All
All dimensions
dimensions in
in inches
inches ±
±0.01(mm
0.01(mm±
±0.25mm).
0.25mm).
All
All pins
pins on
on a
a 0.1(2.54)
0.1(2.54) pitch
pitch and
and within
within ±
±0.01(0.25)of
0.01(0.25)of true
true position.
position.
Weight:
Weight: 2.8g(SIP)
2.8g(SIP)
4.2g(DIP)
4.2g(DIP)
FOOTPRINT
FOOTPRINT
SIP
SIP7
7
FOOTPRINT
FOOTPRINT
DIP14
DIP14
PIN
PIN
F
Function
unction
PIN
PIN
F
Function
unction
1
1
+Vin
1
1
GND
2
2
-Vin
7
7
NC
4
4
-Vout
8
8
0V
6
6
+Vout
9
9
+V0
11
11
No Pin
NC No connection
14
14
Vin
Specifcations can be changed any time without notice.
No parallel connection or plug and play.
Note:
1. The load shouldn't be less than 10%, otherwise ripple will increase dramatically.
2. Operation under 10% load will not damage the converter; However, they may not meet all specification listed.
3. All specifications measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load unless
otherwise specified.
4. In this datasheet, all the test methods of indications are based on corporate standards.
Technical
Technical notes
notes
ISOLATION VOLTAGE
"Hi Pot Test","Flash Tested","Withstand Voltage","Dielectric Withstand Voltage"&”Isolation Test Voltage" are all terms that relate to the same thing, a test voltage.
Applied for a specified time, across a component designed to provide electrical isolation, to verify the integrity of that isolation.
Professional Power Module B series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 1KVDC for 1 second.
A question commonly asked is,"What is the continuous voltage that can be applied across the part in normal operation?"
The B_X(S)D series has been recognized by Underwriters Laboratory for functional insulation. Both input and output should normally be maintained within SELV limits i.e. less than
42.4V peak, or 60VDC.The isolation test voltage represents a measure of immunity to transient voltages and the part should never be used as an element of a safety isolation system.
The part could be expected to function correctly with several hundred volts offset applied continuously across the isolation barrier, but then the circuitry on both sides of the barrier must
be regarded as operating at an unsafe voltage and further isolation/insulation systems must form a barrier between these circuits and any user-acssible circuitry according to
safety standard requirements.
REPEATED HIGH-VOLTAGE ISOLATION TESTING
It is well known that repeated high-voltage isolation testing of a barrier component can actually degrade isolation capability, to a lesser or greater degree depending on materials.
Construction and environment. The B series has toroidal isolation transformers, with no additional insulation between primary and secondary windings of enameled wire. While
parts can be expected to withstand several times the stated test voltage, the isolation capability does depend on the wire insulation. Any material, including this enamel (typically
polyurethane) is susceptible to eventual chemical degradation when subject to very high applied voltages thus implying that the number of tests should be strictly limited. We
therefore strongly advise against repeated high voltage isolation testing. but if it is absolutely required, that the voltage be reduced by 20% from specified test voltage.
This consideration equally applies to agency recognized parts for better than functional isolation where the wire enamel insulation is always supplemented by a further
insulation system of physical spacing or barriers.
RECOMMENDED
RECOMMENDED FOOTPRINT
FOOTPRINT DETAILS
DETAILS
4
4 Pin
Pin SIP
SIP Package
Package
14
14 Pin
Pin DIP
DIP Package
Package
Unless otherwise stated all dimensions in inches (mm) 0.5mm


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