WRA
WRA
WRA
WRA
WRA
WRA
WRA
WRA
-
-
-
-
-
-
-
-
ZD-3W
ZD-3W
ZD-3W
ZD-3W
ZD-3W
ZD-3W
ZD-3W
ZD-3W
&
&
&
&
&
&
&
&
WRB
WRB
WRB
WRB
WRB
WRB
WRB
WRB
-
-
-
-
-
-
-
-
ZD
ZD
ZD
ZD
ZD
ZD
ZD
ZD
-3W
-3W
-3W
-3W
-3W
-3W
-3W
-3W
Series
Series
MODEL
MODEL
MODEL
MODEL
MODEL
MODEL
MODEL
MODEL
SELECTION
SELECTION
SELECTION
SELECTION
SELECTION
SELECTION
SELECTION
SELECTION
WRB
WRB
WRB
WRB
WRB
WRB
WRB
WRB
①
①
①
①
24
24
24
24
24
24
24
24
②
②
②
②
12
12
12
12
12
12
12
12
③
③
③
③
Z
Z
Z
Z
Z
Z
Z
Z
④
④
④
④
D
D
D
D
D
D
D
D
⑤
⑤
⑤
⑤
-
-
-
-
-
-
-
-
3W
3W
3W
3W
3W
3W
3W
3W
⑥
⑥
⑥
⑥
①
Product Series
②
Input Voltage
③ Output Voltage ④ Wide ( 4 :1) Input Range
⑤
DIP Package Style
⑥
Rated Power
Order code
Input Output
Efficiency
(%.Typ.)
Voltage(VDC) No-load
(mA)(typ)
Voltage
(VDC)
Current(mA)
Nominal Range Max* Max. Min.
WRA2405ZD-3W 24 9-36 40 16 ± 5
± 300
± 30 76
WRA2412ZD-3W 24 9-36 40 16 ± 12 ± 125 ± 12 81
WRA2415ZD-3W 24 9-36 40 16 ± 15 ± 100 ± 10 83
WRB2403ZD-3W 24 9-36 40 16 3.3 909 91 74
WRB2405ZD-3W 24 9-36 40 16 5 600 60 76
WRB2412ZD-3W 24 9-36 40 16 12 250 25 81
WRB2415ZD-3W 24 9-36 40 16 15 200 20 81
WRA4805ZD-3W 48 18-72 80 8 ± 5 ± 300 ± 30 85
WRA4812ZD-3W 48 18-72 80 8 ± 12 ± 125 ± 12 83
WRA4815ZD-3W 48 18-72 80 8 ± 15 ± 100 ± 10 85
WRB4803ZD-3W 48 18-72 80 8 3.3 909 91 74
WRB4805ZD-3W 48 18-72 80 8 5 600 60 78
WRB4812ZD-3W 48 18-72 80 8 12 250 25 80
WRB4815ZD-3W 48 18-72 80 8 15 200 20 80
*Input voltage can ’ t exceed this value,or will cause the permanent damage.
3
3
3
3
W,
W,
W,
W,
WIDE
WIDE
WIDE
WIDE
INPUT,
INPUT,
INPUT,
INPUT,
ISOLATED
ISOLATED
ISOLATED
ISOLATED
&
&
&
& REGULA TED
REGULA TED
REGULA TED
REGULA TED DUAL/SINGLE
DUAL/SINGLE
DUAL/SINGLE
DUAL/SINGLE OUTPUT
OUTPUT
OUTPUT
OUTPUT DC
DC
DC
DC -
-
-
- DC
DC
DC
DC CONVERTER
CONVERTER
CONVERTER
CONVERTER
FEATURES
FEATURES
FEATURES
FEATURES
FEATURES
FEATURES
FEATURES
FEATURES
◆
Wide ( 4 :1) Input Range
◆ S hort Circuit Protection
(automatic recovery)
◆
1500VDC Isolation
◆
Operating Temperature:
-40 ℃ ~﹢ 85 ℃
◆
Five sided metal shielding
◆
No external component required
◆
Internal SMD construction
◆
RoHS Compliance
◆
MTBF>1000Khours
APPLICATIONS
APPLICATIONS
APPLICATIONS
APPLICATIONS
APPLICATIONS
APPLICATIONS
APPLICATIONS
APPLICATIONS
The WRA_ Z D- 3 W&WRB_ Z D- 3 W 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
p ower supply is wide range
(Voltage range ≤ 4:1);
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.
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SELECTION
SELECTION
SELECTION
SELECTION
SELECTION
SELECTION
SELECTION
SELECTION
GUIDE
GUIDE
GUIDE
GUIDE
GUIDE
GUIDE
GUIDE
GUIDE
COMMON
COMMON
COMMON
COMMON
COMMON
COMMON
COMMON
COMMON
SPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONS
Parameter Conditions Min. Typ. Max. Units
Storage humidity
95 %
Operating temperature
-40 85 ℃
Storage temperature
-55 125 ℃
Temp. rise at full load
15 ℃
Lead temperature
1.5mm from case for 10 seconds
300 ℃
Cooling Free Air Convection
Short circuit protection
Continuous,automatic recovery
Case material Steel,nickel plated, plastic
Isolation voltage
Tested for1 minute and 1mA max
1500 VDC
Isolation resistance Test at 500VDC
1000 M Ω
Isolation Capacitance
1000 pF
MTBF
1000 K hours
Weight
15 g