WRA-ZD-8W＆WRB-ZD -8W Series
8W, WIDE INPUT, ISOLATED & REGULATED DUAL/SINGLE OUTPUT DC-DC CONVERTER
SELECTION GUIDE
Input voltage
range
Output current
max.
Order code
Output voltage
Efficiency typ.
9 – 36 VDC
9 – 36 VDC
2400 mA
1600 mA
666 mA
WRB2403ZD-8W
WRB2403ZD-8W
WRB2412ZD-8W
WRB2415ZD-8W
WRA2405ZD-8W
WRA2412ZD-8W
WRA2415ZD-8W
WRB4803ZD-8W
WRB4805ZD-8W
WRB4812ZD-8W
WRB4815ZD-8W
WRA4805ZD-8W
WRA4812ZD-8W
WRA4815ZD-8W
WRB7203ZD-8W
WRB7205ZD-8W
WRB7512ZD-8W
WRB7515ZD-8W
WRA7205ZD-8W
WRA7212ZD-8W
WRA7215ZD-8W
3.3 VDC
5 VDC
85 %
87 %
86 %
86 %
84 %
86 %
86 %
85 %
87 %
87 %
88 %
84 %
87 %
87 %
84 %
85 %
86 %
86 %
82 %
85 %
85 %
9 – 36 VDC
12 VDC
15 VDC
±5 VDC
±12 VDC
±15 VDC
3.3 VDC
5 VDC
FEATURES
9 – 36 VDC
533 mA
9 – 36 VDC
±800 mA
±333 mA
±267 mA
2400 mA
1600 mA
666 mA
◆Wide (4:1) Input Range
◆DIP-24 metal package
◆1500VDC Isolation
9 – 36 VDC
9 – 36 VDC
18 – 75 VDC
18 – 75 VDC
18 – 75 VDC
18 – 75 VDC
18 – 75 VDC
18 – 75 VDC
18 – 75 VDC
43 – 160 VDC
43 – 160 VDC
43 – 160 VDC
43 – 160 VDC
43 – 160 VDC
43 – 160 VDC
43 – 160 VDC
12 VDC
15 VDC
±5 VDC
±12 VDC
±15 VDC
3.3 VDC
5 VDC
◆Operating Temperature: -40℃～﹢85℃
◆High efficiency up to 88 %
◆Remote On/Off
533 mA
±800 mA
±333 mA
±267 mA
2400 mA
1600 mA
666 mA
◆No minimum load required
◆3-year product warranty
12 VDC
15 VDC
±5 VDC
±12 VDC
±15 VDC
533 mA
◆Internal SMD construction
◆RoHS Compliance
±800 mA
±333 mA
±267 mA
◆MTBF>1000Khours
*Input voltage can’t exceed this value,or will cause the permanent damage.
MODEL SELECTION
General Specifications
①
②
③
④
⑤
⑥
WRB 24 12 Z D -8W(666)
Temperature ranges
– Operating
–40°C to +85°C
+105°C max.
–55°C to +125°C
3 %/K above +70°C
18.2°C/W
– Case temperature
– Storage
①Product Series
③Output Voltage
②Input Voltage
④Wide (4:1) Input Range
Power derating
⑤DIP Package Style ⑥ Rated Power
Thermal inpedance
– Natural convection
– Natural convection with heat sink
15.8°C/W
Humidity (non condensing)
Isolation voltage(60 sec.)
Isolation resistance
5 – 95 % rel. H max.
1500 VDC
– Input / Output
– Input / Output
– Input / Output
APPLICATIONS
>1000 M Ohm
1500 pF max.
The WRA-ZD-8W ＆ WRB-ZD-8W series is a family of high
Isolation capacitance
performance 8 Watt dc/dc converter modules featuring ultra wide
Switching frequency
300 kHz typ. (pulse width modulation PWM)
4:1 input voltage ranges in
a
DIP-24 package with
http://microdc.cn/uploadfiles/WRA-ZD-8W&WRB-ZD-8W.PDF
Thermal shock, mechanical shock & vibration
– Test conditions
industry-standard footprint. Input voltages up to 160 VDC,
excellent EMC characteristics and EN 50155 approval make this
product the best choice for many demanding applications in
railroad and transportation systems. Further standard features
include remote On/Off, over voltage protection, under voltage
lockout and short circuit protection. Typical applications for these
converters are also in wireless networks, telecom/datacom,
industry control systems and measurement equipments.
Safety standards
UL/cUL 60950-1, IEC/EN 60950-1, EN 50155
Safety approvals
Remote On/Off
– UL/cUL
– On:
3.0 ... 12 VDC or open circuit
0 ... 1.2 VDC or short circuit pin 1 and pin 2/3
2.5 mA
– Off:
– Off idle current:
Reliability, calculated MTBF(MIL-HDBK-217F, at +25°C, ground benign)
1 Mio. h
Environmental
– Reach
– RoHS
RoHS directive 2002/95/EC
Physical Specification
Casing material
Baseplate material
Potting material
Weight
copper, nickel plated
non conductive FR4
epoxy (UL94V-0 rated)
18 g (0.63 oz)
MICRODC reserves the copyright
Soldering temperature
max. 265°C / 10 sec.
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Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
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MICRODC [ MICRODC POWER TECHNOLOGY CO., LTD ]
