GAPTEC-Electronic GmbH & Co. KG

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3ACOS_S – Rev. 2020-1.0

Specifications subject to change without notice.

3ACOS_S Series

3W - Single output AC-DC converter - Universal input - Non-isolated

AC-DC Converter

3 Watt

The 3ACOS_S series is a highly efficient green power AC-DC Converter

series. It features wide input voltage range, accepting both DC and AC

input voltage, high efficiency and low power consumption. The pro-

ducts are widely used in industrial control instrumentation, electric po-

wer applications and smart home type applications, the need to meet

UL/CE safety certifications and lower demand for EMC compliance le-

vels. For extremely harsh EMC environment, we recommend using the

application circuit show of this datasheet.

Output specifications

Output voltage accuracy

±2.5% (typ), -75~+8% (max)

Line regulation (rated load)

±1% (typ)

Load regulation

±2% (typ)

Ripple & Noise* (p-p)

20MHz Bandwidth:

80mV (typ), 150mV (max)

Temperature coefficient

±0.12%/°C (typ)

Stand-by power consumption

0.4W (max)

Short circuit protection

Continuous, and auto resume

Over current protection

≥110%Io, self-recovery

Min. load

10%

* Ripple and Noise are measured by the method of parallel lines.

Input specifications

Input voltage range

85~305VAC, 70~430VDC

Input frequency

47~63Hz

Input current

115VAC

• 0.12A (max)

277VAC

• 0.06A (max)

Inrush current

115VAC

• 25A (typ)

277VAC

• 40A (typ)

Recommended eExternal

input fuse (special package

series include fuse)

1A/300V

Hot plug

Unavailable

Example:

3ACOS_12S

3= 3Watt; AC= AC-DC; A= case style; 12= 12Vout; S= single output

Approval

Model

Package

Power

[W]

Output

[Vo]

Output

[lo]

Ripple and Noise

[mV, typ/max]

Efficiency

[%, typ]

Capacitive load

[µF, max]

UL/CE

3ACOS_12S

16.13 x 15.10 x 9.50 mm

3

12V

250mA

80/150

73

330

Note:

1. External electrolytic capacitors are required to modules, more details refer to

typical applications;

2. Unless otherwise specified, parameters in this datasheet were measured under

the conditions of Ta=25°C, humidity<75%, nominal input voltage (115VAC and

230VAC) and rated output load;

3. In order to improve the efficiency at light load, there will be audible noise gene-

rated, but it does not affect product performance and reliability.

4. The module needs to be glued and fixed after assembly.

5. All index testing methods in this datasheet are based on our company corporate

standards;

6. We can provide product customization service, please contact our technicians

directly for specific information;

7. Products are related to laws and regulations: see „Features“ and „EMC“;

8. Our products shall be classified according to ISO14001 and related environmen-

tal laws and regulations, and shall be handled by qualified units.

Wide input voltage range:

85~305VAC/70~430VDC

Operating temperature range:

-40°C to +85°C

Compact size, open frame

High reliability, green power

Industrial-grade design

Over output current protection

Short circuit protection (SCP)

EN62368 safety approval

Flexible selection of EMC

addtional circuits, simplify

customer PCB layout