WRA-YMD-12W＆WRB-YMD -12W Series
12W, WIDE INPUT, ISOLATED & REGULATED DUAL/SINGLE OUTPUT DC-DC CONVERTER
SELECTION GUIDE
Input voltage
range
Output
Order code
Output voltage
Efficiency typ.
current max.
WRB2403YMD-2400
WRB2412YMD-12W
WRB2415YMD-12W
WRA2412YMD-12W
WRA2415YMD-12W
WRB4803YMD-2400
WRB4812YMD-12W
WRB4815YMD-12W
WRA4812YMD-12W
WRA4815YMD-12W
18－36 VDC
18－36 VDC
18－36 VDC
18－36 VDC
18－36 VDC
36－72 VDC
36－72 VDC
36－72 VDC
36－72 VDC
36－72 VDC
3.3 VDC
12 VDC
2400 mA
1000 mA
800 mA
78 %
84 %
84 %
84 %
84 %
80 %
84 %
84 %
84 %
84 %
15 VDC
FEATURES
◆Ultrawide 2:1 Input Range 18–36 VDC and
± 12 VDC
±15 VDC
3.3 VDC
12 VDC
± 500 mA
± 400 mA
2400 mA
1000 mA
800 mA
36–72 VDC
◆Input Filter meets EN 55022,Class A and FCC,
Level A without external Components
◆Indefinite Short-Circuit Protection
◆Overvoltage Protection
15 VDC
± 12 VDC
±15 VDC
± 500 mA
± 400 mA
◆I/O-Isolation 1500 VDC
◆2" x 1" Metal Package
Input Specifications
24 Vin models
40 mA typ.
20 mA typ.
425 mA typ.
510 mA typ.
600 mA typ.
215 mA typ.
255 mA typ.
300 mA typ.
42 V max.
◆Insulated Baseplate
Input current(no load)
Input current(full load)
Surge voltage(1 sec. max.)
48 Vin models
24 Vin;
◆MTBF>1000Khours
3.3 Vout models:
5 & ±5 Vout models:
other output models:
3.3 Vout models:
◆Industry Standard Pin out
◆2 Year Product Warranty
24 Vin;
24 Vin;
48 Vin;
MODEL SELECTION
48 Vin;
5 & ±5 Vout models:
other output models:
①
②
③
④
⑤
⑥
⑦
WRB 24 12 Y M D -12W(1000)
48 Vin;
24 Vin models
48 Vin models
①Product Series
③Output Voltage ④Wide (2:1) Input Range
⑤Metal Shield ⑥2" x 1"DIP Package Style
②Input Voltage
84 V max.
Reverse voltage protection
Conducted noise (input)
1.0 A max.
⑦Rated Power(Output current)
EN 55022 level A, FCC part 15, level A
APPLICATIONS
The WRA-YMD-12W ＆ WRB-YMD-12W
Series series of DC/DC converters has been
designed for
a wide range of applications
General Specifications
including communications, industrial systems
and battery powered mobile equipments. Key
features are high power density (12W in a
2“x1“x 0.4“ package) and ultrawide input ranges
of 18–36 VDC and 36–72VDC. Other features of
this converter are internal filtering according to
EN55022, level A, safety approval to EN60950
and UL1950, wide operating temperature range
and remote on/off (opt.).
– Operating
– 40℃～+ 60℃
Temperature ranges
– Case temperature
+ 95℃ max.
– Storage
– 40 ℃～+ 125 ℃
above 60℃: 3% /℃
95 % rel H max.
> 700000 h @ +25℃
1500 VDC
Derating
Humidity
non condensing
MIL-HDBK-217 E
Input/Output
Reliability, calculated MTBF
Isolation voltage
Isolation capacity
Isolation resistance
Input/Output
200 pF typ
Input/Output (500 VDC)
> 1000 M Ohm
400 kHz typ. (Pulse width modulation
PWM)
Switching frequency
fixed
Remote ON/OFF (optional):
This pin can be added
arr-cording to customer’s
need
ON:
2.5～5.5 VDC or open circuit.
0～0.8 VDC or short circuit pin 2 and pin 6
10 mA max.
OFF:
MICRODC RESERVES THE COPYRIGHT
OFF idle current:
UL 1950, EN 60950, IEC 60950
Compliance up to 60 VDC input voltage
(SELV limit)
Safety standards:
Safety approvals:
cUL/UL File E188913
http://www.microdc.cn Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
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