0.75S7A_1U series
0.75W - Single/Dual Output DC-DC Converter - Fixed Input - Isolated & Unregulated
DC-DC Converter
0.75 Watt
The 0.75S7A_1U series meet reinforced insulation requirements. They are specially
designed for applications where require compact size, high isolation, low isolation
capacitor and low leakage current power. They are widely used in electricity, IGBT
drivers and so on.
High efficiency up to 86%
1000VDC isolation
SIP package
Operating temperature:
-40°C to +85°C
International standard pinout
EMI complies with EN55032
Class B
Low ripple and noise
These products apply to:
1) Where the voltage of the input power supply is fixed (voltage variation ≤ 10%)
2) Where isolation is necessary between input and output
(isolation voltage 1000VDC)
3) Where do not has high requirement of line regulation and the ripple & noise of
the output voltage;
Such as: Collection and isolation, High voltage collection circuit, IGBT-driven cir-
cuits, etc.
Common specifications
Short circuit protection:
Cooling:
Output specifications
1 sec. MAX
Item
Test condition
Min Typ
Max
3
Units
%
Nature convection
-40°C – +85°C
-40°C – +125°C
100°C MAX
Output voltage
accuracy
Operation temperature range:
Storage temperature range:
Case temperature:
Lead temperature:
Storage humidity range:
MTBF (MIL-HDBK-217F@25°C):
Safety standard:
Line regulation
Load regulation
For Vin change of 1%
1.2
%
20% to 100% load
• 3.3V output
• Others
20
10
%
%
260°C MAX, 1.5mm from case for 10 sec
< 95%
Temperature
coefficient
100% full load
0.02
%/°C
>1,121 Mhours
Ripple & Noise
20MHz Bandwidth
75
mVp-p
KHz
IEC 60950-1
Switching frequency Full load, nominal input
80
Case material:
Plastic [UL94-V0]
2.3g
Weight:
Dimensions:
19.3x6.1x9.9mm
Input specifications
Isolation specifications
Item
Test condition
Min
Typ
Max Units
Item
Test condition
Min
Typ
Max
Units
VDC
MΩ
Input voltage range
10
%
Isolation voltage
Isolation resistance
Isolation capacitance
Tested for 1 minute
Test at 500VDC
1000
1000
Input surge voltage
(1sec. max.)
• 5VDC input
• 12VDC input
• 24VDC input
• 48VDC input
7
VDC
VDC
VDC
VDC
15
60
pF
28
54
Reflected Ripple
Current*
20
mApk-pk
Example:
0.75S7A_0505D1U
Input filter
Capacitor
0.75 = 0.75Watt; S7 = SIP7; A = Pinning; 0505 = 5Vin; 5Vout;
D = Dual Output; 1 = 1kVDC isolation; U = Unregulated Output
* Reflected ripple current measured with a simulated source inductance of 12µH
and a source capacitor Cin(47µF, ESR<1.0Ω at 100KHz).
Page 1 of 5
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
0.75S7A_1U – Rev. 2020-1.1
Specifications subject to change without notice.