WRB-YMD-20W
Series
WIDE INPUT,ISOLATED & REGULATED Single Output DC/DC Converter
SELECTION GUIDE
order
Watt
(Output)
WRB1203YMD-4500
14.85
20
20
20
14.85
20
20
20
14.85
20
20
20
Input
Voltage
(VDC)
9-18
9-18
9-18
9-18
18-36
18-36
18-36
18-36
36-72
36-72
36-72
36-72
Output
Voltage
(VDC)
3.3
5
12
15
3.3
5
12
15
3.3
5
12
15
Output
Current Full
Load
(mA)
4500
4000
1660
1330
4500
4000
1660
1330
4500
4000
1660
1330
Efficiency
(%)
85
89
88
88
86
89
89
89
84
88
89
89
Capacitor
Load
(uF)
2000
2000
470
330
2000
2000
470
330
2000
2000
470
330
FEATURES
◆
RoHS compliant
◆
Efficiency up to 86%
◆
1"X1" DIP Package
◆
Wide temperature performance at full
WRB1205YMD-20W
WRB1212YMD-20W
WRB1215YMD-20W
WRB2403YMD-4500
WRB2405YMD-20W
WRB2412YMD-20W
WRB2415YMD-20W
WRB4803YMD-4500
WRB4805YMD-20W
WRB4812YMD-20W
WRB4815YMD-20W
20 Watt load,-40°C to 85°C
◆
UL 94V-0 package material
◆
No heat sink required
◆
Low ripple and good EMC Features
◆
Industry standard pinout
◆
Regulated Single Output
◆
1500 VDC I/O Isolation
◆
Short Circuit Protection(
automatic recovery
)
◆
Metal case package
◆
MTBF>1000000 hours
*Input voltage can't exceed this value,or will cause the permanent damage.
Input Specifications
Voltage Range
Input Filter
Output Specifications
Voltage Accuracy
Short Circuit Protection
Over Power Protection
Over Voltage Protection
Line Regulation (LL-HL)
⑥
2:1 Wide Input (See Table)
L-C Type
±
2%
Current Limit (Automatic Recovery)
Over 120% of Rating (Automatic Recovery)
Zener Diode Clamp
±
0.5 %, typ.
±
1 %, typ.
75 - 100 mV pk-pk, max.
100
–
125 mV, max.
±
0.02% /
°C,
max.
General Specifications
MODEL SELECTION
WRB 24 05 Y MD -20W(4000)
①
②
③
④
⑤
Load Regulation (10% - 100%)
Ripple
Noise
Temperature Coefficient
①Product
Series
②Input
Voltage
③Output
Voltage
④Wide
(2:1) Input Range
⑤package
style
⑥Rated
Power(Output current)
Efficiency
I/O Isolation Voltage (3 sec.)
I/O Isolation Resistance
Switching Frequency
Humidity
Reliability Calculated MTBF (MIL-HDBK-217F)
Physical Specifications
Case Material
Weight
Environment Specifications
Operating Temperature
Maximum Case Temperature
Storage Temperature
Cooling
RoHS Conform
See Table
1500 VDC
10
8
Ohms
300 - 450 kHz, typ.
95% rel H
> 0.8 MHrs
DESCRIPTION
The WRB_YMD-20W series are specially designed for
applications where a wide range input voltage power
supplies are isolated from the input power supply in a
distributed power supply system on a circuit board. These
products apply to:
1) Where the voltage of the input power supply is wide
range (voltage range≤2:1);
2) Where isolation is necessary between input and
output(isolation voltage≤1500VDC);
3) Where the regulation of the output voltage and the
output ripple noise are demanded.
Six-side shielded Alu (non conductive Base)
~ 15 g, typ.
-40 to +50°C (for 100% - See Derating Graph)
105℃
-55 to +105℃
Free Air Convection (10mm distance required)
Soldering 260°C, max. (1.5mm from case 10s.)
MICRODC reserves the copyright
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
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