BOTHHAND ENTERPRISE INC.
Isolated DC-DC Converters
B_S-1WR2 Series
Features
4pin SIP Package with Industry-Standard Footprint
Input / Output Isolation Voltage: 1.5kVDC
High Efficiency
Lead Free Design, RoHS Compliant
Operating temperature: -40°C to +105°C
Meet Safety Standard / Approval: IEC / EN60950-1
Applications
These converters are well suitable for battery operated
equipment, measurement equipment, telecom, wireless
network, Industry control system, everywhere where
isolated, tightly regulated voltages and compact size are
required.
Technical Specification
All specifications are typical at nominal input, full load and 25°C unless otherwise stated.
Model
Number
B0303S-1WR2
B0305S-1WR2
B0503S-1WR2
B0505S-1WR2
B0509S-1WR2
B0512S-1WR2
B0515S-1WR2
B0524S-1WR2
B1203S-1WR2
B1205S-1WR2
B1209S-1WR2
B1212S-1WR2
B1215S-1WR2
B1503S-1WR2
B1505S-1WR2
B1509S-1WR2
B1512S-1WR2
B1515S-1WR2
B2403S-1WR2
B2405S-1WR2
B2409S-1WR2
B2412S-1WR2
B2415S-1WR2
B2424S-1WR2
E-mail:
sales@bothhand.com.tw
21.6-26.4
Nominal:24
13.5-16.5
Nominal:15
10.8-13.2
Nominal:12
4.5-5.5
Nominal:5
Input Voltage
Range(V)
2.97-3.63
Nominal:3.3
Output
Voltage
(V)
3.3
5
3.3
5
9
12
15
24
3.3
5
9
12
15
3.3
5
9
12
15
3.3
5
9
12
15
24
Output Current
(mA)
(1)
Full Load
300
200
300
200
110
83
67
42
300
200
110
83
67
300
200
110
83
67
300
200
110
83
67
42
https://www.bothhandww.com
8
15
17
28
Input Current (mA)
Typ.
No Load Full Load
35
405
404
264
260
248
246
246
246
109
107
107
104
104
87
85
85
83
83
54
53
52
51
51
51
Eff .(%)
(2)
Typ.
74
75
75
77
80
81
81
81
76
78
78
80
80
76
78
78
80
80
77
79
80
81
81
78
Capacitive Load,
max.
(3)
(uF)
68
47
68
47
33
22
22
10
68
47
33
22
22
68
47
33
22
22
68
47
33
22
22
22
Page 1 of 6
Rev: 20200309A0
BOTHHAND ENTERPRISE INC.
Input Specifications
3.3V nominal input
5V nominal input
12V nominal input
15V nominal input
24V nominal input
Input filter
Isolated DC-DC Converters
B_S-1WR2 Series
2.97-3.63V
4.5-5.5V
10.8-13.2V
13.5-16.5V
21.6-26.4V
Capacitor
Environmental Specifications
Operating ambient temperature
Maximum case temperature
Storage temperature range
Relative humidity
-40°C to +105°C
+125°C
-55°C to +125°C
95% RH max.
Output Specifications
Output power
Nominal Vin and full load
3.3Vdc
5Vdc
9Vdc
12Vdc
15Vdc
24Vdc
output
For Vin charge of 1%
Nominal Vin and 10%-100% load
3.3Vdc
5Vdc
9Vdc
12Vdc
15Vdc
24Vdc
1Watts max.
3.135-3.399V
4.75-5.15V
8.73-9.18V
11.64-12.24V
14.55-15.30V
23.52-24.36V
±1% max.
10% load of full load
±1.2% Typ.
15% Typ.
13% Typ.
9% Typ.
8% Typ.
7% Typ.
6% Typ.
50mVp-p Typ.
120mVp-p Max.
See table
3S Max.
Continuous, Automatic recovery
±0.03%/°C Typ.
Voltage accuracy
Voltage balance
Minimum load
Line regulation
Load regulation
Ripple and Noise (20MHz Bandwidth)
Maximum capacitive load
Output short circuit protection
Temperature coefficient
B03xxS-1WR2
B24xxS-1WR2
Other models
General Specifications
Efficiency
Isolation voltage
Isolation resistance
Isolation capacitance
Switching frequency
Reliability, calculated MTBF
E-mail:
sales@bothhand.com.tw
https://www.bothhandww.com
Rev: 20200309A0
Nominal input and full load
Input to output
500VDC
See table
1500VDC (60 second)
1000MΩ min.
30pF typ.
150kHz typ.
300kHz max.
2×10
6
Hrs
Page 2 of 6
BOTHHAND ENTERPRISE INC.
Physical Specifications
Case material
Potting material
Dimensions
Weight
Isolated DC-DC Converters
B_S-1WR2 Series
Plastic (UL94 V-0)
PU (UL94 V-0)
11.6 × 10.1 × 6.0 mm
1.5g Typ.
Note
1. Io below this value will not damage these converters, however, they may not meet all listed specifications.
2. Typical value, tested at nominal input and full load.
3. For each output.
4. Specifications subject to change without notice.
5. This series of products do not support CC mode, CR mode is recommended.
6. In case of long input lines or hot plug-in requirements, we recommended to use an external low ESR capacitor
(22uF) near to the converter’s input pins.
Power Derating Curve
Power Derating Curve
120
Output Power (%)
100
80
60
40
20
0
-40
-20
0
20
40
60
85
80
105
100
120
Ambient Temp.TA ()
Mechanical Dimensions
Pin Assignment
Pin
1
2
3
4
Single
-Vin
+Vin
-Vout
+Vout
Unit: mm (inch)
Pin section tolerances:±0.1(±0.004)
General tolerances:±0.5(±0.02)
E-mail:
sales@bothhand.com.tw
https://www.bothhandww.com
Rev: 20200309A0
Page 3 of 6
BOTHHAND ENTERPRISE INC.
Test Configurations
Isolated DC-DC Converters
B_S-1WR2 Series
All specifications are typical at nominal input, full load and 25°C unless otherwise stated.
A
DC
Power Supply
A
V
DC/DC
converter
V
Load
◎DC
Power Supply:
It offers a wide voltage and current range precisely.
◎Current
meter (A): Accuracy 200μA ~ 200mA 4 ranges+(0.2%
rdg + 2 digits)
2000mA ~ 20A 2 ranges+(0.3% rdg + 2 digits).
◎Voltage
meter (V): Accuracy
+(0.03% rdg + 4 digits).
◎Load:
At full load.
◎Wires:
The resistance of the wires must be small.
1.
Input voltage range:
Narrow input voltage range（±10%）
、wide
input voltage range (2:1 and 4:1）
。
EX: Narrow input voltage range（±10%）
5V nominal input
4.5~5.5V
12V nominal input
10.8~13.2V
24V nominal input
21.6~26.4V
Wide input voltage range 2:1
5V nominal input
4.5~9V
12V nominal input
9~18V
24V nominal input
18~36V
48V nominal input
36~75V
Wide input voltage range 4:1 (W)
24V nominal input
9~36V
48V nominal input
18~75V
2.
Input power
:
Pin = Vin x Iin
Vin：Input voltage
Iin：Input current
Vout：Output voltage
Iout：Output current
3.
Output power
:
Pout = Vout x Iout
4.
Efficiency
:
Efficiency =
Pout
Pin
x100%
Pout: Output power
Pin: Input power
5.
Voltage accuracy:
│Vout-Vout(nominal)│
Vout
x100%
Vout：Output voltage
Vout(nominal)：Nominal output voltage
6.
Line regulation:
E-mail:
sales@bothhand.com.tw
https://www.bothhandww.com
Rev: 20200309A0
Page 4 of 6
BOTHHAND ENTERPRISE INC.
Isolated DC-DC Converters
B_S-1WR2 Series
Narrow input voltage range（±10%）and unregulated output voltage series.
Line regulation=
Ä
Vout
Ä
Vin
Ä
Vout = Vout(+10%)-Vout(-10%) x100%
Vout
Vout(+10%)：Output voltage at Vin = 1.1xVin(nominal)&full load
Vout(-10%)：Output voltage at Vin = 0.9xVin(nominal)&full load
Vout：Output voltage at Vin = Vin(nominal)&full load
Ä
Vin = Vin(+10%)-Vin(-10%) x100%
Vin(nominal)
Vin(+10%)：Input voltage = 1.1xVin(nominal)
Vin(-10%)：Input voltage = 0.9xVin(nominal)
Vin(nominal)：Nominal Input voltage
7.
Load regulation
:
│Vout(FL)-Vout(NL)│
x100%
Vout(FL)
Vout(FL): Output voltage at full load
Vout(NL): Output voltage at 25% full load or 10% full load
8.
Ripple and Noise:
as shown below. The bandwidth is 0-20MHz.
Noise
Ripple&Noise
Ripple
Output Ripple&Noise measurement test circuit: as shown below.
E-mail:
sales@bothhand.com.tw
https://www.bothhandww.com
Rev: 20200309A0
Page 5 of 6
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