VRA_YMD-6WR3 & VRB_YMD-6WR3 series are isolated 6W DC-DC products with 2:1 input voltage. The feature efficiency up to 87%, 1500VDC
isolation, operating temperature of -40℃~+85℃, input under-voltage protection, output over-voltage, over-current, short circuit protection
and EMI meets CISPR22/EN55022 CLASS A, which make them widely applied in medical care, industrial control, electric power, instruments
and communication fields. And extension package A2S and A4S also enable them with reverse voltage protection.
Selection Guide
Certification
Part No.
Input Voltage
(VDC)
①
Output
Output
Voltage
(VDC)
±5
±12
5
12
±5
±12
±15
Nominal
(Range)
12
(9-18)
Max.
②
Output Current
(mA)
(Max./Min.)
±600/0
±250/0
1200/0
500/0
±600/0
±250/0
±200/0
1500/0
1200/0
500/0
400/0
250/0
③
Efficiency
(%,Min./Typ.)
@ Full Load
79/81
83/85
79/81
83/85
81/83
85/87
85/87
75/77
80/82
83/85
84/86
83/85
Max.
Capacitive
④
Load (µF)
470
100
1000
470
470
100
100
1800
1000
470
220
100
UL/CE/CB
--
VRA1205YMD-6WR3
VRA1212YMD-6WR3
VRB1205YMD-6WR3
VRB1212YMD-6WR3
VRA2405YMD-6WR3
VRA2412YMD-6WR3
VRA2415YMD-6WR3
VRB2403YMD-6WR3
VRB2405YMD-6WR3
24
(18-36)
40
20
UL/CE/CB
3.3
5
12
15
24
--
VRB2412YMD-6WR3
VRB2415YMD-6WR3
VRB2424YMD-6WR3
Notes：
1
Part No. with suffix of “A2S” means chassis mounting and suffix of “A4S” means DIN-Rail mounting (e.g. VRB2405YMD-6WR3A2S means chassis mounting;
VRB2405YMD-6WR3A4S means DIN-Rail mounting);
2
Absolute maximum rating without damage on the converter, but it isn't recommended;
3
Efficiency is measured In nominal input voltage and rated output load;A2S (wiring) and A4S (rail) Model due to input reverse polarity protection, minimum
efficiency greater than Min.-2 is qualified.
4
The capacitive loads of positive and negative outputs are identical.
Input Specifications
Item
Input Current (full load / no-load)
Reflected Ripple Current
Input impulse Voltage (1sec. max.)
12VDC input
24VDC input
Operating Conditions
12VDC input
24VDC input
3.3V output
Others
Min.
--
--
--
--
-0.7
-0.7
Typ.
603/10
268/5
296/5
20
--
--
Max.
633/22
275/15
313/15
--
25
50
Unit
mA
VDC
2016.03.11-A/1
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MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
DC/DC Power Supply Module
VRA_YMD-6WR3 & VRB_YMD-6WR3 Series
Starting Voltage
Input Under-voltage protections
Input Filter
Hot Plug
12VDC input
24VDC input
12VDC input
24VDC input
--
--
5.5
14
--
--
6.5
15.5
Pi filter
Unavailable
9
18
--
--
VDC
Output Specifications
Item
Output Voltage Accuracy
Operating Conditions
5%-100% load
0%-5% load
Full load, the input voltage
is from low voltage to high
voltage
5%-100% load
±5V output
others
Positive output
Negative output
Positive output
Negative output
Min.
--
--
--
--
--
--
--
--
--
Typ.
±1
±2
±1
±0.2
±0.5
±0.5
±0.5
--
300
±5
±3
--
60
--
140
Max.
±3
±5
±3
±0.5
±1
±1
±1.5
±5
500
±8
±5
±0.03
85
160
190
Unit
Line Voltage Regulation
Load Regulation
%
①
Cross Regulation
Transient Recovery Time
Transient Response Deviation
Temperature Drift Coefficient
Ripple & Noise
②
Dual output, main circuit with 50% load,
auxiliary circuit with 10%-100% load
3.3V, 5V, ±5V
output
Others
Full load
20MHz bandwidth, 5%-100% load
Input voltage range
µs
%
%/℃
mV p-p
%Vo
%Io
25% load step change
--
--
--
--
110
110
Over-voltage Protection
Over-current Protection
Short circuit Protection
Continuous, self-recovery
Note:
①When
testing from 0% to100%load working conditions， load regulation index is ±5%；
②0%-5%
load ripple&Noise is no more than 5%Vo.Ripple and noise are measured by “parallel cable” method, please see DC-DC Converter Application
Notes for specific operation.
General Specification
Item
Insulation Voltage
Insulation Resistance
Isolation Capacitance
Operating Temperature
Storage Humidity
Storage Temperature
Lead Temperature
Vibration
Switching Frequency *
MTBF
PWM mode
MIL-HDBK-217F@25℃
--
1000
Welding spot is 1.5mm away from the casing,
10 seconds
Operating Conditions
Input-output, with the test time of 1 minute and
the leak current lower than 1mA
Input-output, insulation voltage 500VDC
Input-output, 100KHz/0.1V
Derating if the temperature is
≥71℃
(see Fig.
1)
Without condensation
Min.
1500
1000
--
-40
5
-55
--
Typ.
--
--
1000
--
--
--
--
Max.
--
--
--
+85
95
+125
+300
Unit
VDC
MΩ
pF
℃
%RH
℃
10-55Hz, 10G, 30 Min. along X, Y and Z
300
--
--
--
KHz
K hours
Note:* This series of products using reduced frequency technology, the switching frequency is test value of full load,When the load is reduced to below 50%, the
switching frequency decreases with decreasing load.
2016.03.11-A/1
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MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
