WRA-YD-8W&WRB-YD-8W
Series
8W, WIDE INPUT, ISOLATED & REGULATED DUAL/SINGLE OUTPUT DC-DC CONVERTER
SELECTION GUIDE
Order code
Input voltage
range
4.5 – 9VDC
4.5 – 9VDC
4.5 – 9VDC
4.5 – 9VDC
4.5 – 9VDC
4.5 – 9VDC
4.5 – 9VDC
4.5 – 9VDC
9 – 18VDC
9 – 18VDC
9 – 18VDC
9 – 18VDC
9 – 18VDC
9 – 18VDC
9 – 18VDC
9 – 18VDC
18 – 36VDC
18 – 36VDC
18 – 36VDC
18 – 36VDC
18 – 36VDC
18 – 36VDC
18 – 36VDC
18 – 36VDC
36 – 75VDC
36 – 75VDC
36 – 75VDC
36 – 75VDC
36 – 75VDC
36 – 75VDC
36 – 75VDC
36 – 75VDC
Output voltage
Output current
max.
2000mA
2400mA
1500mA
665mA
535mA
±800mA
±335mA
±265mA
2000mA
2400mA
1500mA
665mA
535mA
±800mA
±335mA
±265mA
2000mA
2400mA
1500mA
665mA
535mA
±800mA
±335mA
±265mA
2000mA
2400mA
1500mA
665mA
535mA
±800mA
±335mA
±265mA
Efficiency typ.
WRB0503YD-2000
WRB0503YD-2400
WRB0505YD-8W
3.3VDC
3.3VDC
05VDC
12VDC
15VDC
± 05VDC
±12VDC
±15VDC
3.3VDC
3.3VDC
05VDC
12VDC
15VDC
± 05VDC
±12VDC
±15VDC
3.3VDC
3.3VDC
05VDC
12VDC
15VDC
± 05VDC
±12VDC
±15VDC
3.3VDC
3.3VDC
05VDC
12VDC
15VDC
± 05VDC
±12VDC
±15VDC
80%
82%
83%
88%
87%
83%
87%
85%
80%
81%
83%
88%
87%
83%
87%
85%
80%
83%
83%
86%
85%
82%
86%
85%
80%
84%
83%
86%
86%
85%
87%
87%
FEATURES
◆
◆
◆
◆
WRB0512YD-8W
WRB0515YD-8W
WRA0505YD-8W
WRA0512YD-8W
WRA0515YD-8W
WRB1203YD-2000
WRB1203YD-2400
WRB1205YD-8W
WRB1212YD-8W
WRB1215YD-8W
WRA1205YD-8W
DIP-24 package with industry Standard footprint
Wide 2:1 input voltage range
Input filter meets EN 55022,class A
Extended operating temperature range:
-40℃½﹢85℃
◆
◆
Remote On/Off
Shielded metal case with insulated baseplate
Lead free design, RoHS compliant
3 Year product warranty
◆
◆
MODEL SELECTION
WRB 24 15 Y D -8W
①
②
③
④
⑤
⑥
WRA1212YD-8W
WRA1215YD-8W
WRB2403YD-2000
WRB2403YD-2400
WRB2405YD-8W
①Product
Series
②Input
Voltage
③Output
Voltage
④Wide
(2:1) Input Range
⑤DIP24
Package Style
⑥
Rated Power
APPLICATIONS
The
WRA-YD-8W&WRB-YD-8W
series is a
family of high performance 8W DC/DC converter
modules featuring wide 2:1 input voltage ranges
in a DIP-24 package with industry
standard
footprint. A very high efficiency allows an
operating temperature range of –40°C to +85°C.
A built-in EMI input filter complies with EN 55022,
class A with external components. Further
standard features include remote On/Off and
short-circuit protection.
Typical applications for these converters are
battery operated equipment, instrumentation,
communication and industrial electronics,
everywhere where isolated,tightly regulated
voltages are required and space is limited on the
PCB.
WRB2412YD-8W
WRB2415YD-8W
WRA2405YD-8W
WRA2412YD-8W
WRA2415YD-8W
WRB4803YD-2000
WRB4803YD-2400
WRB4805YD-8W
WRB4812YD-8W
WRB4815YD-8W
WRA4805YD-8W
WRA4812YD-8W
WRA4815YD-8W
MICRODC R ESERVES THE COPYRIGHT
*Input voltage can’t exceed this value,or will cause the permanent damage.
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 1 of 4
WRA-YD-8W&WRB-YD-8W
Series
Input Specifications
05 Vin models:
Input current (no load)
12 Vin models:
24 Vin models:
48 Vin models:
05 Vin;
05 Vin;
12 Vin;
Input current (full load)
12 Vin;
24 Vin;
24 Vin;
48 Vin;
48 Vin;
3.3 Vout models:
other output models:
3.3 Vout models:
other output models:
3.3 Vout models:
other output models:
3.3 Vout models:
other output models:
12 Vin models:
Surge voltage (100 msec. max.)
24 Vin models:
48 Vin models:
Conducted noise (input)
ESD (input)
Fast Transient (input)
Surge (input)
25 mA typ.
20 mA typ.
15 mA typ.
10 mA typ.
2000 mA typ.
1600 mA typ.
700 mA typ.
820 mA typ.
350 mA typ.
400 mA typ
170 mA typ.
200 mA typ.
36 V max.
50 V max.
100 V max.
EN 55022 level A, FCC part 15, level A
EN 61000-4-2, Perf. Criteria B
EN 61000-4-4, Perf. Criteria B
EN 61000-4-5, Perf. Criteria B
Output Specifications
Voltage set accuracy
– Input variation Vin min. to Vin max
– Load variation 25 – 100%
Regulation
single output models:
dual output models:
– Load cross variation 25 % / 100 %
Temperature coefficient
Ripple and noise (20 MHz Bandwidth)
Start up time (nominal Vin and constant
Transient response(25% load step change)
Short circuit protection
Over load protection
1 % max.
1 % max.
5 % max.
0.02 % /K
50 mVpk-pk max.
600 ms typ.
200 μs typ.
continuous (automatic recovery)
150% of Iout max typ. foldback
10% of rated max current (operation at lower load
Minimum load (only for dual output models)
condition will not damage these converters,
however, they may not meet all listed specifications)
Capacitive load
3.3 Vout models:
5 Vout models / ± 5 Vout models:
12 Vout models / ±12 Vout models:
15 Vout models / ±15 Vout models:
3300 μF max
1600 μF max. / ± 1000 μF max.
350 μF max. / ± 160 μF max.
240 μF max. / ± 100 μF max.
± 2%
0.2 % max.
General Specifications
– Operating
Temperature ranges
– Case temperature
– Storage
Derating
Humidity (non condensing)
–40 °C to +85 °C
+100 °C max.
–55 °C to +105 °C
3.3% /K above 70°C
95 % rel H max.
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 2 of 4
WRA-YD-8W&WRB-YD-8W
Series
General Specifications
Reliability, calculated MTBF (MIL-HDBK-217F ground benign)
Isolation voltage (60sec.)
Isolation capacity
Isolation Resistance
Switching frequency
Vibration
– Input/Output
– Input/Output
– Input/Output
>715000 h @ +25
℃
1500 VDC
300 pF max.
> 1000 M Ohm
300 kHz typ. (pulse width modulation PWM)
10-55Hz, 2G, 30 minutes along X,Y,Z
UL/cUL 60950-1, IEC/EN 60950-1 compliance
Safety standards
up to 60 VDC input voltage (SELV limit)
Safety approvals
Remote On/Off
– UL/cUL
On:
Off:
Off idle current:
certifications - File E188913
3.5 ... 12 VDC or open circuit
0 ... 1.2 VDC or short circuit pin 1 and pin 2/3
2.5 mA
Physical Specifications
Case material
Baseplate material
Potting material
Weight
Soldering temperature
copper , nickel plated
non conductive FR4
epoxy (UL94V-0 rated)
17 g (0.60 oz)
max. 265
℃
/ 10 sec.
Outline Dimensions
FOOTPRINT DETAILS
Pin
1
2
3
9
11
14
16
22
23
Single
Remote On/Off
–Vin (GND）
–Vin (GND）
No con.
No con.
+Vout
–Vout
+Vin (Vcc)
+Vin (Vcc)
Dual
Remote On/Off
–Vin (GND）
–Vin (GND）
Common
–Vout
+Vout
Common
+Vin (Vcc)
+Vin (Vcc)
NC: N0 Connection
Dimensions in [mm], () = Inch
Pin diameter Ø 0.5 ±0.05
Tolerances
±0.5 (0.02)
(0.02 ±0.002)
Pin pich tolerances ±0.35 (0.014)
Specifications can be changed any time without notice
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 3 of 4
WRA-YD-8W&WRB-YD-8W
Series
TUBE OUTLINE DIMENSIONS
RECOMMENDED FOOTPRINT
Note:
Unit :mm[inch]
General tolerances:±0.50mm[±0.020inch]
L=530mm[20.866inch] Tube Quantity: 15pcs
L=220mm[8.661inch] Tube Quantity: 6pcs
RECOMMENDED FOOTPRINT
Top view grid:2.54mm(0.1inch)
diameter:1.00mm(0.039inch)
Note:
1. The load shouldn't be less than 10%, otherwise ripple will increase dramatically.
2. Operation under 10% load will not damage the converter; However, they may not meet all specification listed.
3. All specifications measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise
specified.
4. In this datasheet, all the test methods of indications are based on corporate standards.
5. Only typical models listed, other models may be different, please contact our technical person for more details.
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.
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.
Microdc Professional Power Module,Inc.
Tel:0086-20-86000646
E-mail:tech@microdc.cn
Website:http://www.microdc.cn
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 4 of 4
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