RTW281R8 TDK Corporation, RTW281R8 Datasheet - Page 15

• Manufacturer Part Number: RTW281R8
• Description: POWER SUPPLY IND 28V 1.8A 50.4W
• Manufacturer: TDK Corporation
• Series: RTWr

Specifications of RTW281R8

• Voltage - Output: 28V
• Number Of Outputs: 1
• Power (watts): 50W
• Applications: Commercial
• Power Supply Type: Switching (Open Frame)
• Voltage - Input: 85 ~ 265VAC
• Mounting Type: Chassis Mount
• 1st Output: 28 VDC @ 1.8A
• Size / Dimension: 4.88" L x 0.87" W x 3.23" H (124mm x 22.1mm x 82mm)
• Power (watts) - Rated: 50.4W
• Operating Temperature: -10°C ~ 71°C
• Efficiency: 85%
• Approvals: CE, CSA, cUL, EN, UL
• Line Regulation: 0.2%
• Load Regulation: 0.4%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -
• Other names: RTW28-1R8

Characteristics, Functions, and Applications
OUTPUT POWER-AMBIENT TEMPERATURE(DERATINGS)
50W WITH COVER TYPE
50W WITHOUT COVER, L TYPE
100W WITH COVER TYPE
100W WITHOUT COVER, L TYPE
• All specifications are subject to change without notice.
100
100
100
80
70
60
40
20
100
80
60
40
20
80
60
40
20
10
0
–20
80
60
40
20
10
0
–20
–20 –10
–20 –10
–10
–10
Available operating range
(outside of warranty)
Available operating range
(outside of warranty)
Available operating range
(outside of warranty)
Available operating range
(outside of warranty)
0
0
0
0
Ambient temperature(˚C)
Ambient temperature(˚C)
Ambient temperature(˚C)
Ambient temperature(˚C)
10
10
10
10
20
20
20
20
( B ) , ( C )
30
30
30
30
( B ) , ( C )
( B ) , ( C )
( B ) , ( C )
40
40
40 50
40 50
50
50
( A )
( A )
( A )
60
( A )
60 65 71
60
60
71
71
71
150W WITH COVER TYPE
300W WITH COVER TYPE
INPUT VOLTAGE DERATING(100W WITH COVER)
100
100
100
80
60
50
40
20
10
80
60
50
40
20
10
90
80
60
40
20
0
–20
0
–20
0
85
–10
–10
90
Available operating range
(outside of warranty)
Available operating range
(outside of warranty)
( A )
( B ) , ( C )
0
0
100
Ambient temperature(˚C)
Ambient temperature(˚C)
10
10
Input voltage Eac ( V )
110
20
20
( B ) , ( C )
30
30
120
( B ) , ( C )
40
40
130
004-02 / 20060214 / ea111_rtw.fm
( A )
50
( A )
50
140
60
60
265
71
71
(15/19)