WRA-ZMD-12W＆WRB-ZMD -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.
WRB2403ZMD-2400
WRB2412ZMD-12W
WRB2415ZMD-12W
WRA2412ZMD-12W
WRA2415ZMD-12W
WRB4803ZMD-2400
WRB4812ZMD-12W
WRB4815ZMD-12W
WRA4812ZMD-12W
WRA4815ZMD-12W
9 – 36 VDC
9 – 36 VDC
9 – 36 VDC
9 – 36 VDC
9 – 36 VDC
18 – 75 VDC
18 – 75 VDC
18 – 75 VDC
18 – 75 VDC
18 – 75 VDC
3,3 VDC
12 VDC
2400 mA
1000 mA
800 mA
78 %
84 %
84 %
84 %
84 %
85 %
84 %
84 %
84 %
84 %
15 VDC
FEATURES
◆Ultrawide 4 : 1 Input Range 9 – 36 VDC and
± 12 VDC
±15 VDC
3,3 VDC
12 VDC
± 500 mA
± 400 mA
2400 mA
1000 mA
800 mA
8 – 75 VDC
◆Full SMD-Design
15 VDC
◆Input Filter meets EN 55022,Class A and FCC,
Level A without external Components
◆Indefinite Short-Circuit Protection
◆Overvoltage Protection
± 12 VDC
±15 VDC
± 500 mA
± 400 mA
Input Specifications
◆I/O-Isolation 1500 VDC
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.
Input current(no load)
Input current(full load)
Surge voltage(1 sec. max.)
◆2" x 1" Metal Package
48 Vin models
24 Vin;
◆Insulated Baseplate
3.3 Vout models:
5 & ±5 Vout models:
other output models:
3.3 Vout models:
24 Vin;
◆MTBF>1000Khours
24 Vin;
◆Industry Standard Pinout
◆2 Year Product Warranty
48 Vin;
48 Vin;
5 & ±5 Vout models:
other output models:
48 Vin;
MODEL SELECTION
24 Vin models
48 Vin models
①
②
③
④
⑤
⑥
⑦
WRB 24 12 Z M D -12W(1000)
84 V max.
Reverse voltage protection
Conducted noise (input)
1.0 A max.
①Product Series ②Input Voltage
③Output Voltage ④Wide (4:1) Input Range
EN 55022 level A, FCC part 15, level A
⑤Metal Shield
⑥2" x 1"DIP Package Style
⑦Rated Power(Output current)
APPLICATIONS
The WRA-ZMD-12W ＆WRB-ZMD-12W Series
series of DC/DC converters has been designed
General Specifications
for
a wide range of applications including
communications, industrial systems and battery
powered mobile equipments. Key features are
high power density(12W in a 2"x1"x0.4" package)
and ultrawide input ranges of 9 ～36 VDC and
18～75 VDC. Other features of this converter are
internal filtering according to EN 55022, level A,
safety approval to EN 60950 and UL 1950, wide
operating temperature range and remote on/off
(opt.).
– Operating
– 40 °C ... + 60 °C
Temperature ranges
– Case temperature
+ 95 °C max.
– Storage
– 40 °C ... + 125 °C
above 60°C: 3% /°C
95 % rel H max.
> 700’000 h @ +25 °C
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):
ON:
2.5 ... 5.5 VDC or open circuit.
OFF:
0 ... 0.8 VDC or short circuit pin 2 and pin 6
MICRODC RESERVES THE COPYRIGHT
OFF idle current:
10 mA max.
UL 1950, EN 60950, IEC 60950
Compliance up to 60 VDC input voltage
(SELV limit)
Safety standards:
Safety approvals:
cUL/UL File E188913
1
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
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