DC/DC Converter
B_S-1WR2 & B_D-1WR2 series
General Specifications
Item
Operating Conditions
Min.
Typ.
--
Max.
--
Unit
Input-output, with the test time of 1 minute and
the leak current lower than 1mA
Isolation Voltage
1500
VDC
Isolation Resistance
Input-output, isolation voltage 500VDC
Input-output, 100KHz/0.1V
1000
--
--
--
--
MΩ
Isolation Capacitance
20
pF
Derating when operating temperature up to
85℃, (see Fig. 2)
Operating Temperature
-40
--
105
Storage Temperature
-55
--
--
125
--
℃
Casing Temperature Rise
Ta=25℃, nominal input, full load output
25
Welding spot is 1.5mm away from the casing,
10 seconds
Pin Welding Resistance Temperature
--
--
300
Storage Humidity
Switching Frequency
MTBF
Non-condensing
--
--
--
100
--
95
--
%RH
KHz
Full load, nominal input voltage
MIL-HDBK-217F@25℃
3500
--
K hours
Physical Specifications
Casing Material
Black flame-retardant and heat-resistant plastic (UL94-V0)
B_S-1WR2 series
11.60*6.00*10.16 mm
12.70*10.16*8.20 mm
1.3g(Typ.)
Dimensions
B_D-1WR2 series
B_S-1WR2 series
B_D-1WR2 series
Weight
1.8g(Typ.)
Cooling Method
Free air convection
EMC Specifications
CE
CISPR32/EN55032 CLASS B (see Fig. 4 for recommended circuit)
CISPR32/EN55032 CLASS B (see Fig. 4 for recommended circuit)
IEC/EN61000-4-2 Contact ±8KV perf. Criteria B
EMI
RE
ESD
EMS
Product Characteristic Curve
3.3VDC output
Other output
Tolerance Envelope Curve
Tolerance Envelope Curve
+15%
+10%
+10%
+5%
M
a
p
x
.
+1.0%
+5%
0
T
y
+2.5%
-2.5%
-7.5%
.
.
0
-5%
M
i
n
.
-7.5%
-15%
-5%
-10%
-15%
-10%
10% 20%
40%
80%
100%
60%
10% 20%
40%
80%
100%
60%
Output Current Percent
(Nominal Input Voltage)
Output Current Percentage
(Nominal Input Voltage)
Fig. 1
Temperature Derating Curve
120
100
80
60
Safe Operating Area
40
20
0
-40
0
40
85 105 120
Ambient Temp.(℃)
Fig. 2
2018.04.13-B/1
Page 3 of 6
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