1S7A_R Series
1W Single Output - Fixed Input - Isolated & Regulated
SIP PACKAGE
DC-DC Converter
1 Watt
Small Footprint
SIP Package
Low Ripple and good EMC
features
Temperature Range:
-40°C ~ +85°C
No External Component
Required
1KVDC Isolation
Internal SMD construction
Continuous Short Circuit
Protection (SCP)
Industry Standard Pinout
RoHS Compliance
The 1S7A Series is specially designed for applications where a single
power supply is highly isolated from the input power supply in a distri-
buted power supply system on a circuit board.
These products apply to:
1)Where the voltage of the input power supply is fixed
(voltage variation ≤ 5%);
2)Where isolation is necessary between input and output
(isolation voltage ≤1000VDC);
No Heat Sink Required
3)Where the regulation of the output voltage and the output ripple
and noise are demanded.
RoHS
Common specifications
Short circuit protection:
Temperature rise at full load:
Cooling:
Output specifications
1 second
Item
Test condition
Min Typ
0.1
Max
1
Units
W
25°C MAX, 15°C TYP
Free air convection
-40°C – +85°C
Output power
Line regulation
Load regulation
For Vin change of 5%
10% to 100% full load
100% full load
0.25
%
Operation temperature range:
Storage temperature range:
Lead temperature
1
3
%
-55°C – +125°C
Output voltage
accuracy
%
300°C (1.5mm from case for 10 sec.)
< 95%
Temperature drift
Ripple*
100% full load
0.03 %/°C
Storage humidity range:
Case material:
20MHz Bandwidth
20MHz Bandwidth
10
20
75
mVp-p
mVp-p
KHz
Plastic [UL94-V0]
>3,500,000 hours
Noise*
50
MTBF:
Switching frequency Full load, nominal
input
100
Isolation specifications
*Test ripple and noise by “parallel cable” method. See detailed operation
instructions at Testing of Power Converter section, application notes.
Item
Test condition
Min
Typ
Max
Units
VDC
MΩ
Isolation voltage
Isolation resistance
Tested for 1 minute
Test at 500VDC
1000
1000
Note:
Model selection:
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<75%, nominal input voltage
and rated output load unless otherwise specified.
3. In this datasheet, all the test methods of indications are based on corporate
standards.
WCTP**_xxyyN##O
W=Watt; C= Case; T=Type; P=Pinning; **= Voltage Variation (omitted
10%); xx= Vin; yy= Vout; N= Numbers of Output; ##= Isolation
(kVDC); O= output regulation
Example:
1S7A_0505S1RP
1=1Watt; S7= SIP7; A=Pinning; 5Vin; 5Vout; S=Single Output;
1=1kVDC; R=Regulated Output; P= Short Circuit Protection
4. Only typical models listed, other models may be different, please contact our
technical person for more details.
Page 1 of 3
1S7A_R – Rev. 2012-1.0
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
Specifications subject to change without notice.