3ACFEW_3 series
3Watt - AC-DC converter
AC-DC Converter
3 Watt
Ultra-wide 85 - 305VAC &
70-430VDC input voltage range
Accepts AC or DC input
(dual-use of same terminal)
Operating ambient temp.
range -40°C to +85°C
Controllable life and
adjustable cost
3ACFEW_3 series is one of GAPTEC’s highly efficient green power AC-DC
Converter series. They feature wide input range accepting either AC or
DC voltage, high efficiency, low power consumption and reinforced iso-
lation. All models are particularly suitable for industrial control, electric
power, instrumentation and smart home applications which have high
requirement for dimension and don’t have high requirement on EMC.
For extremely harsh EMC environment, we recommend using the appli-
cation circuit show in Design Reference of this datasheet.
No-load power
consumption: 0.1W
Output short circuit,
over-current protection
Design meets IEC/EN61558,
IEC/EN60335 standards
IEC/EN/UL62368 safety
approved
Multi application,
flexible layout
Compact size, high power
density, green power
UL-62368-1 (E347551)
Common specifications
Short circuit protection:
Temperature rise at full load:
Output specifications
Hiccup, continuous, self-recovery
25°C TYP
Item
Operating Conditions
Min Typ
5
Max
Units
%
Output voltage
accuracy*
10% - 100% load
Cooling:
Free air convection
-40°C to +85°C
-40°C to +105°C
< 95%
Line regulation
Load regulation
Rated load
1.5
3
%
%
Operation temperature range:
Storage temperature range:
Storage humidity range:
Power derating:
10% - 100% load
20MHz Bandwidth
(peak-peak value)
10% - 100% load
Ripple & Noise*
80
150
mV
+65°C to +85°C: 2.5%/°C MIN
85VAC - 100VAC: 1.33%/VAC MIN
277VAC - 305VAC: 1.0%/VAC MIN
Temperature
Coefficient
0.15
0.1
%/°C
Safety standard:
IEC/EN/UL62368, IEC/EN60335,
IEC/EN61558
Stand-by Power
Consumption
0.15
W
Safety-regulated certification:
Safety class:
IEC/EN/UL62368
Class II
Over-current
Protection
≥110% Io self-recovery
10
Min. load
%
Hot plug:
Unavailable
1. * The “parallel cable” method is used for ripple and noise test, please refer to
AC-DC Converter Application Notes for specific information;
Case material:
Plastic [UL94-V0]
26.40 x 12.58 x 11.00 mm
>1000,000 hours
3.5g
Dimension:
2. The product is able to work with 0%-10% load and with stable output.
MTBF (MIL-HDBK-217F@25°C):
Weight:
Example:
3ACFEW_03S3
5 = 5Watt; AC = AC-DC; F = Open Frame; E = series; W = wide input
03 = 3.3Vout; S = single output; 3 = 3 kVAC isolation
Input specifications
Item
Operating Conditions
Min
Typ
Max
Units
Input voltage range • AC Input
• DC Input
85
70
305
430
VAC
VDC
Note:
1. External electrolytic capacitors are required to modules, more details refer to
typical applications;
Input frequency
47
63
Hz
2. This part is open frame, at least 6.4mm creepage distance between the primary
and secondary external components of the module is needed to meet the
safety requirement, refer to the recommended welding hole design in the
external dimension drawing;
3. Unless otherwise specified, parameters in this datasheet were measured under
the conditions of Ta = 25°C, humidity <75%, nominal input voltage ( 115V and
230V) and rated output load;
4. All index testing methods in this datasheet are based on our company
corporate standards;
5. We can provide product customization service, please contact our technicians
directly for specific information;
6. Products are related to laws and regulations: see “Features“ and “EMC“;
7. Our products shall be classified according to ISO14001 and related
environmental laws and regulations, and shall be handled by qualified units.
Input current
• 115VAC
• 230VAC
0.12
0.06
A
A
Inrush current
• 115VAC
• 277VAC
13
A
A
23
Recommended
External Input Fuse
1A, slow-blow, required (The actual use needs to be
selected according to the application enviroment)
Isolation specifications
Item
Operating Conditions
Min
Typ
Max
Units
VAC
Isolation voltage
(nput-output)
Electric Strength Test
for 1min., leakage
current < 5mA
3000
Page 1 of 6
3ACFEW_3 – Rev. 2020-1.1
Specifications subject to change without notice.
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
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