WRA-YT-2W&WRB-YT-2W
Series
2W, WIDE INPUT, ISOLATED & REGULATED DUAL/SINGLE OUTPUT DC/DC CONVERTER
SELECTION GUIDE
Order code
WRB0503YT-500
Input voltage
range
4.5 – 9.0 VDC
4.5 – 9.0 VDC
4.5 – 9.0 VDC
4.5 – 9.0 VDC
4.5 – 9.0 VDC
4.5 – 9.0 VDC
4.5 – 9.0 VDC
9 – 18 VDC
9 – 18 VDC
9 – 18 VDC
9 – 18 VDC
9 – 18 VDC
9 – 18 VDC
9 – 18 VDC
18 – 36 VDC
18 – 36 VDC
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
36 – 72 VDC
36 – 72 VDC
Output voltage
3.3 VDC
5 VDC
12VDC
15 VDC
± 5 VDC
± 12 VDC
± 15 VDC
3.3 VDC
5 VDC
12VDC
15 VDC
± 5 VDC
± 12 VDC
± 15 VDC
3.3 VDC
5 VDC
12VDC
15 VDC
± 5 VDC
± 12 VDC
± 15 VDC
3.3 VDC
5 VDC
12VDC
15 VDC
± 5 VDC
± 12 VDC
± 15 VDC
Output current
max.
500 mA
400 mA
165 mA
135 mA
± 200 mA
± 85 mA
± 65 mA
500 mA
400 mA
165 mA
135 mA
± 200 mA
± 85 mA
± 65 mA
500 mA
400 mA
165 mA
135 mA
± 200 mA
± 85 mA
± 65 mA
500 mA
400 mA
165 mA
135 mA
± 200 mA
± 85 mA
± 65 mA
Efficiency typ.
70 %
73 %
75 %
73 %
64 %
69 %
71 %
73 %
77 %
80 %
80 %
73 %
78 %
78 %
72 %
77 %
80 %
81 %
74 %
78 %
80 %
71 %
73 %
79 %
79 %
71 %
77 %
77 %
FEATURES
◆
Low Profile SMD-Package
◆
Wide 2:1 Input Voltage Range
◆
I/O-Isolation 1500 VDC
WRB0505YT-2W
WRB0512YT-2W
WRB0515YT-2W
WRA0505YT-2W
WRA0512YT-2W
◆
Input Filter meets EN55022, Class A
◆
Operating Temperature Range -40°C to +71°C
◆
Short-Circuit Protection
◆
Lead free Design, RoHS compliant
◆
3 Year Product Warranty
◆
RoHS Compliance
WRA0515YT-2W
WRB1203YT-500
WRB1205YT-2W
WRB1212YT-2W
WRB1215YT-2W
WRA1205YT-2W
WRA1212YT-2W
WRA1215YT-2W
MODEL SELECTION
WRB
①
12
②
05
③
Y
④
T
⑤
-2W(400)
⑥
①Product
Series
②Input
Voltage
③Output
Voltage
④Wide
(2:1) Input Range
⑤Package
Style
⑥Rated
Power(Output current)
WRB2403YT-500
WRB2405YT-2W
WRB2412YT-2W
WRB2415YT-2W
WRA2405YT-2W
WRA2412YT-2W
WRA2415YT-2W
WRB4803YT-500
WRB4805YT-2W
DESCRIPTION
The WRA-YT-2W&WRB-YT-2W series is a family of high
performance 2W DC/DC converter modules featuring wide
2:1 input voltage ranges. The 28 models come in a low
profile SMD package which requires just 3 cm
2
space on
the PCB. A high efficiency allows an operating
temperature range of –40°C to 71°C without derating. A
built-in EMI input filter complies with EN 55022, class A.
Typical applications for these converters are battery
operated equipment, instrumentation, communication and
industrial electronics, everywhere where isolated, tightly
regulated voltages are required.
WRB4812YT-2W
WRB4815YT-2W
WRA4805YT-2W
WRA4812YT-2W
WRA4815YT-2W
MICRODC reserves the copyright
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 1 of 3
WRA-YT-2W&WRB-YT-2W
Series
Input Specifications
5 Vin models:
12 Vin models:
Input current at full load(nominal input)
24 Vin models:
48 Vin models:
5 Vin models:
12 Vin models:
Surge voltage (100 msec. max.)
24 Vin models:
48 Vin models:
Conducted noise (input)
*Supply voltage must be discontinued at the end of short circuit duration.
50 V max.
100 V max.
EN 55022 level A, FCC part 15, level A
110 mA typ.
55 mA typ.
11 V max.
25 V max.
600 mA typ.
220 mA typ.
Output Specifications
Voltage set accuracy
– Input variation Vin min. to Vin max.
Regulation
– Load variation 25 – 100 %
dual output models:
Ripple and noise (20 MHz Bandwidth)
Temperature coefficient
Short circuit protection
Minimum load
3.3 VDC output models:
5 VDC output models:
12 VDC output models:
Capacitive load
15 VDC output models:
± 5 VDC output models:
± 12 VDC output models:
± 15 VDC output models:
*Supply voltage must be discontinued at the end of short circuit duration.
±2%
± 0.5 % max.
± 0.75 % max.
± 2.0% (balanced load)
50 mVpk-pk max
± 0.02 %/K
indefinite, automatic recovery
25% of rated max current (operation at lower load
condition is safe but a higher output ripple will be
experienced)
2’200 µF max.
1’000 µF max.
170 µF max.
110 µF max.
470 µF max.
100 µF max.
47 µF max.
General Specifications
– Operating
Temperature ranges
– Storage
Humidity (non condensing)
Reliability, calculated MTBF(MIL-HDBK-217 F)
Isolation voltage
Isolation capacity
Isolation resistance
Switching frequency
*Supply voltage must be discontinued at the end of short circuit duration.
Input/Output
Input/Output
Input/Output (500 VDC)
– 55 °C ... + 125 °C
95 % rel. H max.
> 1.0 Mio h @ 25°C
1’500 VDC
250 pF
> 1‘000 M Ohm
300 kHz (PFM)
– 40 °C ... + 71 °C (no derating)
General Specifications
Case material
Weight
Reflow soldering profile
non conductive FR4
3.8 g (0.13oz)
Peak temp. 245°C (10 sec max.)
217°C for 90 sec. max.
Convection reflow solder process is recommended
*All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 2 of 3
WRA-YT-2W&WRB-YT-2W
Series
Outline Dimensions mm (inches)
Pin-Out
Pin
1
7
8
9
10
16
Single
–Vin (GND)
No con.
No con.
+Vout
–Vout
+Vin
Dual
–Vin (GND)
No con.
Common
+Vout
–Vout
+Vin
Outline Dimensions mm (inches)
Note:
1.
2.
3.
The load shouldn't be less than 10%, otherwise ripple will increase dramatically.
Operation under 10% load will not damage the converter; However, they may not meet all specification listed.
Capacitor MAX load tested at input voltage range and full load.
4. All specifications measured at Ta=25℃, humidity<75%, nominal input voltage and rated output load unless otherwise specified.
5.
6.
Only typical models listed, other models may be different, please contact our technical person for more details.
In this data sheet, all the test methods of indications are based on corporate standards.
RoHS COMPLIANT INFORMATION
This series is compatible with RoHS soldering systems with a peak wave solder temperature
of 300°C for 10 seconds.
The pin termination finish on the SIP package type is Tin Plate, Hot Dipped over Matte Tin
with Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both types in this
series are backward compatible with Sn/Pb soldering systems.
Microdc Professional Power Module,Inc.
Tel:0086-20-86000646
E-mail:tech@microdc.cn
Website:http://www.microdc.cn
REACH COMPLIANT INFORMATION
This series has proven that this product does not contain harmful chemicals, it also has
harmful chemical substances through the registration, inspection and approval.
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 3 of 3
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