• 85 to 305VAC input voltage range
• 4kVAC isolation input/output
• Operating temperature: -40°C to +85°C
• Full load output power up to 75°C
• Low profile of 15.4mm height
• Household and ITE certified
Features
AC/DC Converter
Regulated
Converter
RAC03E-K/277
• EMC compliance EN55032 class “B”
Description
3 Watt
1.45” x 0.95”
Single Output
The cost-efficient RAC03E-K/277 AC/DC converter series has an input range of nominal 100VAC to an
enhanced 277VAC, delivering an uncompromising 3 watts of output power with tightly regulated outputs
from 3.3V to 24VDC. These low profile, encapsulated print-mountable modules in an industry-standard
pinout deliver full output power from -40°C to +75°C and are certified for operation up to +85°C air
ambient with output power reduced to 1.8W. This series of AC/DC modules holds international safety
certifications for industrial, domestic, ITE, and household use. With 4kVAC input to output isolation, they
are suitable for worldwide applications in automation control, industry 4.0, IoT and household automation.
Due to their LPS (Limited Power Source) and reinforced class II installation rating for floating outputs and
their significantly wide margin to class B EMC compliance without external components, these are the
easiest to use, versatile power modules in the industry.
3
Selection Guide
Part
Number
Input
Voltage Range
[VAC]
Output
Voltage
[VDC]
Output
Current
[mA]
Efficiency
typ. (1)
[%]
C
RoHS2
+
REACH
ERP
compliant
compliant
compliant
10 from 10
RAC03E-3.3SK/277
RAC03E-05SK/277
RAC03E-12SK/277
RAC03E-15SK/277
RAC03E-24SK/277
85-305
85-305
85-305
85-305
85-305
3.3
5
900
600
250
200
125
68
73
75
77
79
I
12
15
24
E227436
Notes:
H
Note1: Efficiency is tested at nominal input and full load at +25°C ambient
CERTIFIED
EN-60335-1
s
Model Numbering
UL/IEC/EN62368-1 certified
CAN/CSA C22.2 No. 62368-1 certified
EN60335-1 (pending)
RAC03E- SK/277
nom. Output Power
nom. Output Voltage
Single
EN62233 (pending)
IEC/EN61558-1/2-16 (pending)
EN55032/EN55035 compliant
CB Report
Specifications (measured @ Ta= 25°C, nom. Vin, full load and after warm-up unless otherwise stated)
BASIC CHARACTERISTICS
Parameter
Condition
Min.
Typ.
Max.
Nominal Input Voltage
50/60Hz
100VAC
277VAC
47-63Hz
DC
85VAC
120VDC
277VAC
305VAC
430VDC
70mA
50mA
40mA
10A
(2,3)
Input Voltage Range
Input Current
115VAC
230VAC
277VAC
115VAC
230VAC
277VAC
cold start at
25°C
Inrush Current
20A
25A
No load Power Consumption
ErP Standby Mode Conformity
(Maximum output power available for Module Input Power=
stated maximum input power)
75mW
0.5W
1.0W
0.32W
0.68W
Notes:
Note2: The products were submitted for safety files at AC-Input operation (90-305VAC)
(7)
Note3: Refer to “Derating Graph
”
continued on next page
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PA-1