RTW281R8 TDK Corporation, RTW281R8 Datasheet - Page 6

• 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

RTW100W Type
SPECIFICATIONS AND STANDARDS
Part No.
Rated output voltage and current
Maximum output power
Input conditions
Input voltage Eac
Input frequency
Input current
Fuse rating
Surge current
Leakage current
Power factor
Efficiency
Output characteristics
Output voltage Edc
Voltage variable range Edc
Maximum output current
Minimum output current
Overvoltage threshold
Overcurrent threshold
Voltage
stability
Ripple Ep-p
Ripple noise Ep-p
Start up time
Hold up time
Maximum load capacitor
Auxiliary functions
Indicator display
Overvoltage protection
Overcurrent protection
Overheat protection
Remote ON-OFF
Remote sensing
Parallel operation
Series operation
Current balance
Output voltage external variable function
Master slave operation
Standards
Safety standards
Noise terminal voltage
Immunity
Input harmonics current requirement
Radiation field intensity
Constructions
External dimensions
Weight
Mounting method
Case material
∗
∗
∗
• All specifications are subject to change without notice.
1
2
3
Current rating(maximum output current) is determined for –10 to +40°C. Derating is required when used outside this temperature range.
Multiply by 1.5 for use at 100 MHz in a temperature range of –10 to 0°C.
There will be a decrease in output voltage during cold starts in a temperature range of –20 to 0°C. It may take up to three seconds for the voltage to
stabilize.
Source effect
Load effect
Temperature effect
Drift(Time effect)
Recovery
∗
2
∗
3
∗
2
Without cover
With cover
L type
%
%
∗
1
W
V
Hz
A
A
A
mA
100V
200V
V
V
A
A
V
A
%
%
%
%
%
mV
mV
ms
ms
µF
mm
g
RTW03-25R
RTW03-25RC RTW05-20RC RTW12-8R4C RTW15-6R7C RTW24-4R2C RTW28-3R6C RTW48-2R1C
RTW03-25RL RTW05-20RL RTW12-8R4L RTW15-6R7L RTW24-4R2L RTW28-3R6L RTW48-2R1L
3.3V • 25A
82.5
85 to 265[Rated: 100-240](AC.90V max.: Derating is 90percent)
47 to 66[Rated: 50-60](Single phase)
1.5max./0.75max.[AC.100-120/200-240V](3.3V: 1.2max./0.6max.)
3.15[Built-in]
14typ./28typ.[AC.100/240V, 1st surge current, 25°C, cold start]
0.32max./0.45max.[AC.100(Electrical Appliance and Material Safety Law)/240V(UL, IEC)]
0.99typ./0.93typ.[AC.100/240V]
79typ.
81typ.
3.3
2.6 to 4.0
25
0
4.2 to 5.2
26.2 to 33.7
0.2max.(0.1typ.)[Within the input voltage range](3.3V: 10mV max./5mV typ.)
0.4max.(0.2typ.)[0 to 100% load](3.3V: 20mV max./10mV typ.)
1.0max.(0.5typ.)[Ambient temperature: –10 to +71°C]
0.5max.(0.2typ.)[25°C, input and output ratings, after input voltage ON for 30min to 8h]
±4max.[50 to 100% sudden load change, tr, tf
80max.
120max.
500max.(400typ.)/300max.(200typ.)[AC.100/240V]
20min.(35typ.)
10000
LED(Green) indicates when voltage output is ON.
Output voltage shut-down type, recovers upon reset(interval approx.30s)
Winker operation, automatic recovery.
No
Yes (An internal switch for toggling between on and off is provided.)
Yes
Impossible
Possible
No
No
No
UL60950-1, CSA 60950-1(C-UL), EN60950-1(TÜV) approved, Electrical Appliance and Material Safety Law
("DENAN") (Compliant with creepage surface and air clearance in Attachment 8) meet.
FCC-Class B, VCCI-Class B, EN55011-B, EN55022-B meet.
EN50082-2, EN50082-2, EN61000-4-2, 3, 4, 5, 6, 8, 11 meet.
EN61000-3-2 meet.
FCC-Class FCC-Class B, VCCI-Class B, EN55011-B, EN55022-B meet.
82
450max.
Can be attached to 2 sides, 3 directions
Frame: Aluminum, circuit board: CEM-3
×
25
×
160[H
×
W
RTW05-20R
5V • 20A
100
83typ.
85typ.
5
4.0 to 5.8
20
0
6.0 to 6.9
21 to 25
80max.
120max.
×
L]
12V • 8.4A
100.8
84typ.
86typ.
9.6 to 13.2
8.4
100max.
150max.
RTW12-8R4
12
0
13.7 to 15.7
8.8 to 10.5
RTW15-6R7
15V • 6.7A
100.5
85typ.
87typ.
15
12.0 to 16.5
6.7
0
17.0 to 19.0
7.03 to 9.04
100max.
150max.
50µs]
RTW24-4R2
24V • 4.2A
100.8
85typ.
87typ.
24
19.2 to 26.4
4.2
0
27.0 to 30.5
4.41 to 5.25
150max.
200max.
004-02 / 20060214 / ea111_rtw.fm
RTW28-3R6
28V • 3.6A
100.8
85typ.
87typ.
28
22.4 to 30.8
3.6
0
32.0 to 35.0
3.78 to 4.86
Total effect±1.8max.(±0.9typ.)
150max.
200max.
RTW48-2R1
48V • 2.1A
100.8
85typ.
88typ.
48
38.4 to 52.8
2.1
0
55.0 to 60.0
2.2 to 2.62
200max.
300max.
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