1S7A_DS1U Series
1W - Dual Separate Output - Fixed Input - Isolated & Unregulated
SIP PACKAGE
DC-DC Converter
1 Watt
7PIN SIP package
High efficiency up to 85%
Temperature range:
-40°C ~ +85°C
No external component
Required
1KVDC isolation
The 1S7A_DS1U Series is specially designed for applications where a
single power supply is highly isolated from the input power supply in a
distributed power supply system on a circuit board.
Internal SMD construction
Unregulated output types
Industry standard pinout
RoHS compliance
Dual separate isolated
outputs
These products apply to:
1)Where the voltage of the input power supply is fixed
(voltage variation ≤±±5)ꢀ
Option: bended pins (-BP)
2)Where isolation is necessary between input and output
(isolation voltage ≤1000VDC)ꢀ
3)Where isolation is necessary between separate output 1 and
separate output 2 (isolation voltage ≤1000VDC)
Common specifications
Short circuit protection:
Temperature rise at full load:
Cooling:
Output specifications
1 second
Item
Test condition
Min Typ
1.2
Max
±±
Units
5
2±°C MAX, 1±°C TYP
Free air convection
-40°C – +8±°C
Voltage tolerance
Line regulation
Load regulation
1005 full load
For Vin change of ±15
5
Operation temperature range:
Storage temperature range:
Lead temperature
Storage humidity range:
Case material:
105 to 1005 full load
• 3.3V/±V
• 9V/12V/1±V
1±
10
5
5
-±±°C – +12±°C
300°C (1.±mm from case for 10 sec.)
< 9±5
Temperature drift
Ripple & Noise
1005 full load
±0.03 5/°C
20MHz Bandwidth
100
mVp-p
KHz
Plastic [UL94-V0]
>3,±00,000 hours
2.1 or 2.7g
Switching frequency Full load, nominal
input
100
MTBF:
Weight:
*Test ripple and noise by “parallel cable” method. See detailed operation
instructions at Testing of Power Converter section, application notes.
Input specifications
Model selection:
WCTP**_xxyyN##O
Item
Test condition
Min
Typ
Typ
Max
±±
Units
5
W=Wattꢀ C= Caseꢀ T=Typeꢀ P=Pinningꢀ **= Voltage Variation (omitted
± 105)ꢀ xx= Vinꢀ yy= Voutꢀ N= Numbers of Outputꢀ ##= Isolation
(kVDC)ꢀ O= output regulation
Voltage tolerance
Filter
Vo, Io nom
Capacitor
Example:
1S7A_0505DS1U
1=1Watt; S7= SIP7; A=Pinning; 5Vin; 5Vout;
DS= Dual Separate Output; 1=1kVDC; U=Unregulated Output
Isolation specifications
Item
Test condition
Min
Max
Units
VDC
MΩ
Isolation voltage
Isolation resistance
Tested for 1 minute
Test at ±00VDC
1000
1000
Note:
1. Operation under minimum load will not damage the converterꢀ However, they
may not meet all specification listed, and that will reduce the life of product.
2. All specifications measured at Ta=2±°C, humidity<7±5, 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.
4. Only typical models listed, other models may be different, please contact our
technical person for more details.
Part Number
Input Voltage (xx) [VDC]
±, 9, 12, 1±, 24
±, 9, 12, 1±, 24
±, 9, 12, 1±, 24
±, 9, 12, 1±, 24
±, 9, 12, 1±, 24
±, 9, 12, 1±, 24
Output Voltage 1 (yy) [V]
3.3, ±, 9, 12, 1±, 24
3.3, ±, 9, 12, 1±, 24
3.3, ±, 9, 12, 1±, 24
3.3, ±, 9, 12, 1±, 24
3.3, ±, 9, 12, 1±, 24
3.3, ±, 9, 12, 1±, 24
Output Voltage 2 (zz) [VDC]
Output Current [mA]
Efficiency [%, max]
1S7A_xxyyzzDS1U
1S7A_xxyyzzDS1U
1S7A_xxyyzzDS1U
1S7A_xxyyzzDS1U
1S7A_xxyyzzDS1U
1S7A_xxyyzzDS1U
3.3
±
1±0
100
±6
70
70
70
70
70
70
9
12
1±
24
42
34
21
• If the input voltage increases, there will be an increase in efficiency.
• 24Vdc input voltage or output voltage, using package version 2.
• Option Bended Pins add -BP
Page 1 of 2
GAPTEC-Electronic GmbH & Co. KG
1S7A_DS1U – Rev. 2016-1.2
sales@gaptec-electronic.com – www.gaptec-electronic.com
Specifications subject to change without notice.