RTW281R8 TDK Corporation, RTW281R8 Datasheet - Page 14

• 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
BLOCK DIAGRAM
COMMON SPECIFICATIONS
Temperature and humidity
Temperature range
Humidity range
Vibration and shock
Vibration
Shock
Withstand voltage and insulation resistance
Withstand voltage
Insulation resistance
• All specifications are subject to change without notice.
AC input
N
L
Input
filter
circuit
Operating(°C)
Operating available(°C)
Storage(°C)
Operating(%)RH
Storage(%)RH
5 to 10Hz
10 to 200Hz
Acceleration
Pulse duration
Input terminal to ground(G)
Input terminal to output terminal
Output terminal to ground(G)
Input terminal to ground(G)
Input terminal to output terminal
Output terminal to ground(G)
Input
rectifier
circuit
Surge
current
limiting
circuit
PFC control
circuit
Boost-up
circuit
–10 to +71
–20 to –10
–30 to +75
10 to 95[Maximum wet-bulb temperature: 35°C, without dewing]
All amplitude 10mm[3 directions, each 1h, Sweep time 10min]
Acceleration 19.6m/s
50W: 392m/s
100W588m/s
100W: 196m/s
100W:
150, 300W: 588m/s
11±5ms
Eac: 2.0kV, 1min[Normal temperature, normal humidity, cutout current 10mA]
Eac: 3.0kV, 1min[Normal temperature, normal humidity, cutout current 10mA]
Eac: 500V, 1min[Normal temperature, normal humidity, cutout current 20mA]
Edc: 500V, 100MW min. [Normal temperature, normal humidity]
Power
switching
circuit
Overcurrent
detection
circuit
Control circuit
588m/s
2
2
(40G)[A instllation]
(60G)[B, C instllation]
2
2
(20G)[A instllation]
(60G)[B, C instllation]
2
(60G)
2
(2G)[3 directions, each 1h, Sweep time 10min]
Output rectifying
and smoothing
circuit
Remote ON/OFF
change over switch
Overvoltage
detection
circuit
Output
voltage
detection
circuit
004-02 / 20060214 / ea111_rtw.fm
+RC
–
+S
–
–
+
RC
S
DC output
(14/19)