WRA-ZD-8W＆WRB-ZD-8W Series
8W, WIDE INPUT, ISOLATED & REGULATED DUAL/SINGLE OUTPUT DC-DC CONVERTER
SELECTION GUIDE
Input voltage
Output current
max.
Order code
Output voltage
Efficiency typ.
range
9 – 36 VDC
9 – 36 VDC
2400 mA
1600 mA
666 mA
WRB2403ZD-2400
WRB2405ZD-8W
WRB2412ZD-8W
WRB2415ZD-8W
WRA2405ZD-8W
WRA2412ZD-8W
WRA2415ZD-8W
WRB4803ZD-2400
WRB4805ZD-8W
WRB4812ZD-8W
WRB4815ZD-8W
WRA4805ZD-8W
WRA4812ZD-8W
WRA4815ZD-8W
WRB7203ZD-2400
WRB7205ZD-8W
WRB7212ZD-8W
WRB7215ZD-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
9 – 36 VDC
533 mA
FEATURES
9 – 36 VDC
±800 mA
±333 mA
±267 mA
2400 mA
1600 mA
666 mA
9 – 36 VDC
◆Wide (4:1) Input Range
◆DIP-24 metal package style
◆1500VDC Isolation
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 %
◆No minimum load required
◆3-year product warranty
533 mA
±800 mA
±333 mA
±267 mA
2400 mA
1600 mA
666 mA
12 VDC
15 VDC
±5 VDC
±12 VDC
±15 VDC
◆Internal SMD construction
◆RoHS Compliance
533 mA
±800 mA
±333 mA
±267 mA
◆MTBF>1000Khours
*Input voltage can’t exceed this value,or will cause the permanent damage.
MODEL SELECTION
⑥
①
②
③
④
⑤
WRB 24 12 Z D -8W(666)
General Specifications
①Product Series
③Output Voltage
②Input Voltage
④Wide (4:1) Input Range
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
⑤DIP24 Package Style
⑥Rated Power(output current)
– Case temperature
– Storage
Power derating
Thermal impedance
– Natural convection
APPLICATIONS
– Natural convection with heat sink
15.8°C/W
The WRA-ZD-8W＆WRB-ZD-8W series is a
Humidity (non condensing)
Isolation voltage(60 sec.)
Isolation resistance
5 – 95 % rel. H max.
1500 VDC
family of high performance
8 Watt dc/dc
– Input / Output
– Input / Output
– Input / Output
converter modules featuring ultra wide 4:1 input
voltage ranges in DIP-24 package with
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/data-com, industry control systems
and measurement equipments.
>1000 M Ohm
1500 pF max.
Isolation capacitance
Switching frequency
300 kHz typ.
http://microdc.cn/uploadfiles/WRA-ZD-8W&WRB-ZD-8W.PDF
UL/cUL 60950-1, IEC/EN 60950-1, EN 50155
Thermal shock, mechanical shock & vibration
– Test conditions
Safety standards
Safety approvals
– UL/cUL
– On:
Remote On/Off(According to
3.0 ... 12 VDC or open circuit
0 ... 1.2 VDC or short circuit pin 1 and pin 2/3
2.5 mA
– Off:
customer need to use)
– 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
MICRODC RESERVES THE COPYRIGHT
non conductive FR4
metal (UL94V-0 rated)
18 g (0.63 oz)
Soldering temperature
max. 265°C / 10 sec.
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
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