VRA_YMD-6WR2&
VRB_YMD-6WR2 Series
6W,WIDE INPUT ISOLATED&
REGULATED DUAL/SINGLE OUTPUT
DIP PACKAGING, DC-DC CONVERTER
FEATURES
●
2:1 wide input voltage range
●
Efficiency up to 88%
●
1.5KVDC isolation
●
Short circuit protection
●
Output over voltage protection
●
Operating Temperature range:
-40°C ~ +85°C
●
Industry standard pinout
●
Low ripple & noise
●
Meet CISPR22/EN55022 CLASS A
●
Inverse polarity protection for A2S
（
chassis
mounting）and A4S（DIN-Rail mounting）
●
Meet EN60950
APPLICATION
VRA_YMD-6WR2&VRB_YMD-6WR2
series
models
provide 6 Watt output power, with 2:1 wide range of
9-18VDC,18-36VDC,36-75VDC,output
over-voltage
and
short-circuit protection. And all of them can meet
CISPR22/EN55022 CLASS A without external circuit. Typical
applications for these converters are industrial, electric power,
instrumentation, telecommunication.
Patent Protected RoHS
PART NUMBER SYSTEM
VRB1205YMD-6WR2
Rated Power
Package
O utput Voltage
Input Voltage
Product Series
SELECTION GUIDE
Input Voltage(VDC)
Model
①
Nominal
(Range)
Max.
②
Output
Voltage
(VDC)
±5
±12
±15
Output Current (mA)
Max.
±600
±250
±200
1500
1200
500
400
250
±600
±250
±200
±125
1500
1200
500
400
250
±600
±250
±200
±125
1500
1200
500
400
250
Min.
±30
±12
±10
75
60
25
20
12
±30
±12
±10
±6
75
60
25
20
12
±30
±12
±10
±6
75
60
25
20
12
Input Current
(mA)(Typ.)
@Max.
@No
Load
Load
617
588
588
528
617
588
588
581
301
287
287
285
261
301
287
287
287
151
143
142
142
130
151
143
142
142
3
5
7
12
Max.
Efficiency
Reflected
Capacitive (%, Typ.)
④
Ripple
③
Current
Load
@Max.
(mA,Typ.)
(µF)
Load
470
100
100
1800
1000
100
100
47
470
100
100
47
1800
20
1000
100
100
47
470
100
100
47
1800
1000
100
100
47
81
85
85
76
81
85
85
86
83
87
87
87
79
83
87
87
87
83
87
88
88
79
83
87
88
88
Approval
VRA1205YMD-6WR2
VRA1212YMD-6WR2
VRA1215YMD-6WR2
VRB1203YMD-6WR2
VRB1205YMD-6WR2
VRB1212YMD-6WR2
VRB1215YMD-6WR2
VRB1224YMD-6WR2
VRA2405YMD-6WR2
VRA2412YMD-6WR2
VRA2415YMD-6WR2
VRA2424YMD-6WR2
VRB2403YMD-6WR2
VRB2405YMD-6WR2
VRB2412YMD-6WR2
VRB2415YMD-6WR2
VRB2424YMD-6WR2
VRA4805YMD-6WR2
VRA4812YMD-6WR2
VRA4815YMD-6WR2
VRA4824YMD-6WR2
VRB4803YMD-6WR2
VRB4805YMD-6WR2
VRB4812YMD-6WR2
VRB4815YMD-6WR2
VRB4824YMD-6WR2
48
(36-75)
80
24
(18-36)
40
12
(9-18)
20
3.3
5
12
15
24
±5
±12
±15
±24
3.3
5
12
15
24
±5
±12
±15
±24
3.3
5
12
15
24
CE
The copyright and authority for the interpretation of the products are reserved by
MORNSUN
VRA_YMD-6WR2 & VRB_YMD-6WR2
2013.12.02-B/0 Page 1 of 7
Note:① series with suffix "A2S" are chassis mounting, with suffix "A4S" are DIN-Rail mounting, for example VRB2405YMD-6WR2A2S is chassis mounting,
VRB2405YMD-6WR2A4S is DIN-Rail mounting.
②Absolute
maximum rating without damage on the converter, but it isn't recommended.
③For
dual output converter, the given value is the same for each output.
④
The efficiency of "A2S" and "A4S" is approx. 4%(12V input) lower, 2%(24V and 48V input) lower
for the protection of inverse polarity.
INPUT SPECIFICATIONS
Item
Input Surge Voltage (1sec. max.)
Test Conditions
12VDC input
24VDC input
48VDC input
12VDC input
Start-up Voltage
Input Filter
24VDC input
48VDC input
Min.
-0.7
-0.7
-0.7
--
--
--
Typ.
--
--
--
--
--
--
Pi Filter
Max.
25
50
100
9
18
36
VDC
Unit
OUTPUT SPECIFICATIONS
Item
Output Voltage Accuracy
Output Voltage Balance
Line Regulation
Load Regulation
Cross Regulation
Transient Recovery Time
Transient Response Deviation
Temperature coefficient
Ripple&Noise*
Output Over Voltage Protection
Output Short Circuit Protection
Dual output, balanced Loads
Full load, Input voltage from low to high
5% to 100% load
Dual output, main output 50% load,
secondary output from 10% to 100% load
25% load step change
100% load
20MHz bandwidth
Input voltage range
Test Conditions
Min.
--
--
--
--
--
--
--
--
--
110
Typ.
±1
±0.5
±0.2
±0.5
--
300
±3
--
50
120
Max.
±2
±1.5
±0.5
±1
±5
500
±5
±0.03
75
140
µs
%
%/°C
mVp-p
%Vo
%
Unit
Continuous, automatic recovery
Note:* Ripple and noise tested with "parallel cable" method. See detailed operation instructions at
DC-DC Application Notes.
COMMON SPECIFICATIONS
Item
Isolation Voltage
Isolation Resistance
Isolation Capacitance
Switching Frequency
MTBF
Safety approvals
Case Material
PCB mounting
Size
A2S chassis mounting
A4S DIN-Rail mounting
PCB mounting
Weight
A2S chassis mounting
A4S DIN-Rail mounting
--
--
--
Test Conditions
Input-Output,1Tested for 1 minute , leakage current less than 1 mA
Input-Output,1Test at 500VDC
Input-Output,100KHz/0.1V
PWM mode
MIL-HDBK-217F@25℃
Min.
1500
1000
--
--
1000
Typ.
--
--
1000
300
--
EN60950
Aluminum Alloy
25.4x25.4x11.7
76.0x31.5x21.2
76.0x31.5x25.8
13
35
55
--
--
--
g
mm
Max.
--
--
--
--
--
Unit
VDC
MΩ
pF
KHz
K hours
ENVIRONMENTAL SPECIFICATIONS
Item
Storage Humidity
Operating Temperature
Storage Temperature
Max. Case Temperature
Lead Temperature
Cooling
Vibration
Operating Temperature curve range
1.5mm from case for 10 seconds
Test Conditions
Non condensing
Power derating (above 71℃, see Figure 4)
Min.
5
-40
-55
--
--
Typ.
--
--
--
--
--
Max.
95
85
125
105
300
Unit
%
°C
°C
Free air convection
10-55Hz, 10G, 30 Min. along X, Y and Z
The copyright and authority for the interpretation of the products are reserved by
MORNSUN
VRA_YMD-6WR2 & VRB_YMD-6WR2
2013.12.02-B/0 Page 2 of 7
EMC SPECIFICATIONS
EMI
CE
RE
ESD
RS
EFT
EMS
Surge
CS
Voltage dips, short
and interruptions
immunity
CISPR22/EN55022
CISPR22/EN55022
IEC/EN61000-4-2
IEC/EN61000-4-3
IEC/EN61000-4-4
IEC/EN61000-4-4
IEC/EN61000-4-5
IEC/EN61000-4-6
IEC/EN61000-4-29
CLASS A（Without External Circuit）/ CLASS B（External Circuit Refer to Figure1-② or Figure 3）
CLASS A（Without External Circuit）/ CLASS B（External Circuit Refer to Figure1-② or Figure 3）
Contact
±4KV
10V/m
±2KV
±4KV
±2KV
3 Vr.m.s
0%-70%
perf. Criteria B
perf. Criteria A
perf. Criteria B（External Circuit Refer to Figure1-①）
perf. Criteria B（External Circuit Refer to Figure 3）
perf. Criteria B（External Circuit Refer to Figure1-①or Figure 3）
perf. Criteria A
perf. Criteria B
EMC RECOMMENDED CIRCUIT
FUSE
V in
LDM1
+
MOV
GND
TVS
C0
C1
CY2
LDM2
Vin
+Vo
EUT
GND
-Vo
(0V)
LOAD
①
②
CY1
(Figure1)
Recommended external circuit parameters:
Model
Vin: 12V
FUSE
MOV
LDM1
TVS
C0
C1
LDM2
CY1
CY2
--
--
SMCJ28A
680μF/25V
1μF/50V
4.7μH
1nF/2KV
1nF/2KV
Vin: 24V
Choose according to actual input current
S14K35
56μH
SMCJ48A
330μF/50V
SMCJ90A
330μF/100V
1μF/100V
Vin: 48V
S14K60
Note: In Figure 1,part①is EMS recommended external circuit, part② is EMI recommended external circuit. Choose according to requirements.
EMC RECOMMENDED CIRCUIT PCB LAYOUT
DUAL
SINGLE
Note: The pad space between input and output (CY1/CY2) must≥2mm.
(Figure 2)
The copyright and authority for the interpretation of the products are reserved by
MORNSUN
VRA_YMD-6WR2 & VRB_YMD-6WR2
2013.12.02-B/0 Page 3 of 7
EMC MODULE APPLICATION CIRCUIT
FT-A /BX1 D
FUS E
+V in
+Vin
Vin
+Vo
C
-V in
+
-Vin
EU T
+Vo
-Vo
GND
-Vo
(0V)
Lo ad
FT-A/BX1D is MORNSUN’s EFT suppresser
For nominal voltage <48V,C≥330μF/50V
For nominal voltage =48V,C≥330μF/100V
(Figure 3)
EMI TEST WAVEFORM (RECOMMENDED CIRCUIT FIGURE 1-②)
VRA2415YMD-6WR2
CE（Class B, Positive line）
VRA2415YMD-6WR2
CE（Class B, Negative line）
VRB2405YMD-6WR2
CE（Class B, Positive line）
VRB2405YMD-6WR2
CE（Class B, Negative line）
PRODUCT TYPICAL PERFORMANCE CURVE
Temperature Derating Graph
Operating Temp.(
℃
)
(Figure 4)
Efficiency VS Input Voltage curve
(Full Load)
VRA2415YMD-6WR2
100
95
90
85
80
75
70
65
60
55
50
18
20
22
24
26
28
30
32
34
36
效 率VS输出负½½曲线图
（ 标 称 输入电压）
100
90
80
效 率(%)
70
60
50
40
30
20
5
10 20 30 40 50 60 70 80 90 100
输出 电流百分比(%)
VRA2415YMD-6WR2
Efficiency(%)
Input Voltage(V)
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VRA_YMD-6WR2 & VRB_YMD-6WR2
2013.12.02-B/0 Page 4 of 7
Efficiency VS Input Voltage curve
(Full Load)
100
95
90
85
80
75
70
65
60
55
50
18
20
22
24
26
28
30
32
34
VRB2405YMD-6WR2
Efficiency VS Input Voltage curve
(Full Load)
100
95
90
85
80
75
70
65
60
55
50
18
20
22
24
26
28
30
32
34
VRB2405YMD-6WR2
Efficiency(%)
Efficiency(%)
36
36
Input Voltage(V)
Input Voltage(V)
VRA_YMD-6WR2& VRB_YMD-6WR2 PCB MOUNTING OUTLINE DIMENSIONS,RECOMMENDED
FOOTPRINT
VRA_YMD-6WR2A2S& VRB_YMD-6WR2A2S CHASSIS MOUNTING OUTLINE DIMENSIONS
Footprint Details
Pin
Dual
Single
1
NC
NC
2
GND
GND
3
Vin
Vin
4
-Vo
0V
5
0V
NC
6
+Vo
+Vo
VRA_YMD-6WR2A4S& VRB_YMD-6WR2A4S DIN-RAIL MOUNTING OUTLINE DIMENSIONS
The copyright and authority for the interpretation of the products are reserved by
MORNSUN
VRA_YMD-6WR2 & VRB_YMD-6WR2
2013.12.02-B/0 Page 5 of 7
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