1MS4A_3UP Series
1W - Single Output DC-DC Converter - Fixed Input - Isolated & Unregulated
DC-DC Converter
1 Watt
High Efficiency up to 81%
3000VDC Isolation
Temperature Range:
-40°C ~ +85°C
No External Component
Required
Internal SMD Construction
Industry Standard Pinout
RoHS Compliance
The 1MS4A_3UP series are specially designed for applications where a
group of polar power supplies are isolated from the input power supply
in a distributed power supply system on a circuit board.
No Heatsink Required
They apply to:
Short Circuit Protection
1) Where the voltage of the input power supply is fixed
(Voltage variation ≤ 10ꢀ)
2) Where isolation is necessary between input and output
(Isolation voltage ≤3000VDC)
3) Where the regulation of the output voltage and the output ripple
noise are not demanding.
Such as: purely digital circuits, ordinary low frequency analog circuits,
and IGBT power device driving circuits.
Common specifications
Short circuit protection*:
Temperature rise at full load:
Cooling:
Output specifications
continuous
Item
Test condition
Min
0.1
Typ
Max
1
Units
W
38°C MAX
Output power
Line regulation
Load regulation
Free air convection
-40°C~+85°C
High Vin to low Vin
1.2
ꢀ
Operation temperature range:
Storage temperature range:
Lead temperature:
Storage humidity range:
Case material:
10ꢀ to 100ꢀ load
• 3.3V output & 0309
• 5V output
• 9V output
• 12V output
15
15
10
10
9
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
-50°C ~+130°C
300°C MAX, 1.5mm from case for 10 sec
< 95ꢀ
• 15V output
Plastic [UL94-V0]
>3,500,000 hours
1.09g
Output voltage
accuracy
See tolerance envelope graph
MTBF:
Temperature drift
Ripple & Noise*
100ꢀ full load
0.03 ꢀ/°C
Weight:
20MHz Bandwidth
75
120
mVp-p
KHz
*Supply voltage must be discontinued at the end of short circuit duration.
Switching frequency Full load, nominal input
120
*Test ripple and noise by “parallel cable” method. See detailed operation instruc-
tions at Testing of Power Converter section, application notes.
Input specifications
Item
Test condition
Min
Typ
Max
Units
Voltage range
• 3.3V input
• 5V input
• 12V input
• 24V input
2.9
4.5
11
3.3
5
12
24
3.6
5.5
13.3 VDC
26.4 VDC
VDC
VDC
Model selection:
WCTP**_xxyyN##O
21.6
W=Watt; C= Case; T=Type; P=Pinning; **= Voltage Variation (omitted
10ꢀ); xx= Vin; yy= Vout; N= Numbers of Output; ##= Isolation
(kVDC); O= output regulation
Internal power
dissipation
520
mW
Example:
1MS4A_0505S3UP
1= 1 Watt; MS4= Micro SIP4; A= Pinning; 05= 5 Vin; 05= 5Vout;
S= Single Output; 3= 3kVDC Isolation; U= Unregulated Output;
P= Short Circuit Protection (SCP)
Isolation specifications
Item
Test condition
Min
Typ
Max
Units
VDC
Isolation voltage
Tested for 1 minute
and 1mA max
3000
Isolation resistance
Test at 500VDC
1000
MΩ
Note:
1. Operation under minimum load will not damage the converter; However, they
may not meet all specification listed, and that will reduce the life of product.
2. All specifications measured at Ta=25°C, humidity<75ꢀ, nominal input voltage
and rated output load unless otherwise specified.
3. Only typical models listed, other models may be different, please contact our
technical person for more details.
4. In this datasheet, all the test methods of indications are based on corporate
standards.
Page 1 of 3
1MS4A_3UP – Rev. 2016-1.0
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
Specifications subject to change without notice.