BD
Series
1. Features :
!
Wide 2：1 Input Range
!
Low Ripple and Noise
!
Input / Output Isolation 1.5K Vdc or 3.5K Vdc
!
100 % Burn-In
!
Input
π-
Filter
!
Custom Design Available
2 to 6 Watt Isolated DC-DC Converter
Single / Dual Output
2. Absolute maximum ratings
：
( Exceeding these values may damage the module. These are not continuous operating ratings )
Parameter
Condition
12V Input Model
Input
Absolute
Voltage Range
24V Input Model
48V Input Model
Output Short circuit duration
Reverse Polarity Input current Limit
Operating temperature
Storage temperature
Nominal Input Range
---
Output Full Load
Min.
-0.7
-0.7
-0.7
Typ.
12
24
48
Max.
22.5
45
90
Vdc
Unit
Indefinite & Auto-Restart
---
-25
-55
---
---
---
1
+71
+105
A
℃
3. Nominal Input / Output Electrical Specifications :
( Specifications typical at Ta = +25℃, nominal input voltage, rated output current unless otherwise noted )
Parameter
Condition
12V Input Model
Input Voltage Range
24V Input Model
48V Input Model
Line Regulation
Load Regulation
Output Voltage Accuracy
Output Voltage Balance
Switching Frequency
Temperature Coefficient
Isolation Voltage
Isolation Resistance
Isolation Capacitance
Standard Series
High Isolation Series
500 Vdc
1 KHz / 250 mV rms
Output full Load
Single Output Model
Dual Output Model
Nominal Input
Dual Output at same Load
Nominal Input
---
---
---
---
1500
3500
1000
---
± 1.0
---
250
± 0.01
---
---
---
350
Min.
9
18
36
---
---
Typ.
12
24
48
---
---
Max.
18
36
75
± 0.5
± 0.5
±2
± 2.0
± 1.0
---
± 0.02
---
---
---
---
MΩ
pF
KHz
%/
℃
Vdc
%
Vdc
Unit
BOTHHAND USA. http://www.bothhand.com
BD
Series
4. Single Output Selection Guide：
：
Input
Bothhand
Voltage
Model No.
(Vdc)
(Vdc)
(mA) Max
(mA) Typ.
Voltage
Current
@ No Load
Output
Output
2 to 6 Watt Isolated DC-DC Converter
Single / Dual Output
( Specifications typical at Ta = +25
℃,
Nominal input voltage, Rated output current unless otherwise noted )
Input Current Input Current
@ Max. Load
(mA) Typ.
Output
Ripple
(mV) Max.
Load
Efficiency
Regulation
(%) Typ.
(%) Max.
2 W Single output Series
BD-1205S2
9 ~ 18
BD-1215S2
BD-2405S2
BD-2412S2
BD-2415S2
BD-4805S2
36 ~ 75
BD-4812S2
4 W Single output Series
BD-123R3S4
BD-1205S4
BD-1212S4
BD-2405S4
BD-2412S4
BD-2415S4
BD-4805S4
36 ~ 75
BD-4812S4
12.0
333
7
104
100
± 0.5
80
6 W Single output Series
BD-1205S6
9 ~ 18
BD-1212S6
BD-2405S6
BD-2412S6
BD-2415S6
BD-4805S6
36 ~ 75
BD-4812S6
BD-xxxxSx
Notes：
1.
2.
3.
4.
5.0
15.0
5.0
18 ~ 36
12.0
15.0
5.0
12.0
400
134
400
167
134
400
167
9
9
6
6
6
3
3
235
226
116
113
109
57
55
50
120
50
100
120
50
100
± 0.5
± 0.5
± 0.5
± 0.5
± 0.5
± 0.5
± 0.5
71
74
72
74
77
73
76
3.3
9 ~ 18
5.0
12.0
5.0
18 ~ 36
12.0
15.0
5.0
1000
800
333
800
333
267
800
19
20
22
10
13
15
6
357
422
416
211
208
201
105
50
50
100
50
100
120
50
± 0.5
± 0.5
± 0.5
± 0.5
± 0.5
± 0.5
± 0.5
77
79
80
79
80
83
79
5.0
12.0
5.0
18 ~ 36
12.0
15.0
5.0
12.0
1200
500
1200
500
400
1200
500
19
20
10
13
13
6
8
633
625
316
313
313
158
154
50
100
50
100
120
50
100
± 0.5
± 0.5
± 0.5
± 0.5
± 0.5
± 0.5
± 0.5
79
80
79
80
80
79
81
Standard output Voltage is 3.3V, 5V, 9V, 12V, 15V,
BD-xxxxSx is for Customer Design.
Load regulation is for output current change from 0 % to 100 % Max. Load.
Suffix “H” for 3.5K Vdc Isolation…… ( BD-xxxxSxH )
Suffix “M” for Metal case …………… ( BD-xxxxSxM )
BOTHHAND USA. http://www.bothhand.com
BD
Series
Mechanical Dimension
：
( Single O/P )
Case：
(1). Plastic Case
：
2 to 6 Watt Isolated DC-DC Converter
Single / Dual Output
Pin
1
2
3
4
5
Single Output
---
-Vin
---
+Vin
Pin
24
23
22
21
20
Case：
(2). Nickel Coated Metal Case
：
6
7
8
9
10
11
12
---
---
19
18
17
NC
---
NC
---
Vo (-)
---
Vo (+)
---
16
15
14
13
Note：”
--- “
means Omitted
Units : mm ( inch )
Tolerance : .xx ± 0.25
( ± 0.01 )
BOTHHAND USA. http://www.bothhand.com
BD
Series
5. Dual Output Selection Guide：
：
Input
Bothhand
Voltage
Model No.
(Vdc)
2 W Dual output Series
BD-1205D2
9 ~ 18
BD-1212D2
BD-2405D2
18 ~ 36
BD-2405D2
BD-4805D2
36 ~ 75
BD-4812D2
4 W Dual output Series
BD-123R3D4
9 ~ 18
BD-1205D4
BD-2405D4
BD-2412D4
BD-2415D4
BD-4805D4
BD-4812D4
BD-4815D4
6 W Dual output Series
BD-1205D6
9 ~ 18
BD-1212D6
BD-2405D6
BD-2412D6
BD-2415D6
BD-4805D6
BD-4812D6
BD-4815D6
BD-xxxxDx
Notes：
1.
2.
3.
4.
2 to 6 Watt Isolated DC-DC Converter
Single / Dual Output
( Specifications typical at Ta = +25
℃,
Nominal input voltage, Rated output current unless otherwise noted )
Output
Voltage
(Vdc)
Output
Current
(mA) Max
Input Current Input Current
@ No Load
(mA) Typ.
@ Max. Load
(mA) Typ.
Output
Ripple
(mV) Max.
Load
Efficiency
Regulation
(%) Typ.
(%) Max.
± 5.0
± 12.0
± 5.0
± 12.0
± 5.0
± 12.0
± 200
± 83
± 200
± 83
± 200
± 83
9
9
6
7
3
3
225
215
110
106
56
53
50
100
50
100
50
100
±2
±2
±2
±2
±2
±2
74
77
76
78
75
78
± 3.3
± 5.0
± 5.0
18 ~ 36
± 12.0
± 15.0
± 5.0
36 ~ 75
± 12.0
± 15.0
± 500
± 400
± 400
± 167
± 133
± 400
± 167
± 133
20
22
13
15
17
10
11
12
367
439
219
209
208
108
106
104
50
50
50
100
120
50
100
120
±2
±2
±2
±2
±2
±2
±2
±2
75
76
76
80
80
77
79
80
± 5.0
± 12.0
± 5.0
18 ~ 36
± 12.0
± 15.0
± 5.0
36 ~ 75
± 12.0
± 15.0
± 600
± 250
± 600
± 250
± 200
± 600
± 250
± 200
22
25
13
14
15
10
13
14
658
633
321
317
313
162
156
156
50
100
50
100
120
50
100
120
±2
±2
±2
±2
±2
±2
±2
±2
76
79
78
79
80
77
80
80
BD-xxxxDx is for Customer Design.
Load regulation is for output current change from 0 % to 100 % Max. Load.
Suffix “H” for 3.5K Vdc Isolation…… ( BD-xxxxDxH )
Suffix “M” for Metal case …………… ( BD-xxxxDxM )
BOTHHAND USA. http://www.bothhand.com
BD
Series
Mechanical Dimension
：
( Dual O/P )
Case：
(1). Plastic Case
：
2 to 6 Watt Isolated DC-DC Converter
Single / Dual Output
Pin
1
2
3
4
5
Dual Output
---
-Vin
---
+Vin
Pin
24
23
22
21
20
Case：
(2). Nickel Coated Metal Case
：
6
7
8
9
10
11
12
---
---
19
18
17
Common
---
Vo (-)
---
Common
---
Vo (+)
---
16
15
14
13
Note：”
--- “
means Omitted
Units : mm ( inch )
Tolerance : .xx ± 0.25
( ± 0.01 )
BOTHHAND USA. http://www.bothhand.com
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