Model Selection Guide
Input
Output
Over
Voltage
Protection (%, Typ)
(VDC)
Fuse Rating
Slow-Blow
(mA)
Model
Number
Efficiency
Voltage (VDC)
Current (mA)
Voltage Current
(VDC) (mA, Max) (mA, Min)
Current
Full-
Load
423
No-
Load
10
Nominal
Range
B1201RU
B1202RU
B1203RU
B1204RU
B1205RU
B1206RU
B1207RU
B1211RU
B1212RU
B1213RU
B1214RU
B1215RU
B1216RU
B1217RU
24
24
24
24
24
24
24
48
48
48
48
48
48
48
9.0 - 36.0
9.0 - 36.0
9.0 - 36.0
9.0 - 36.0
9.0 - 36.0
9.0 - 36.0
9.0 - 36.0
18.0 - 75.0
18.0 - 75.0
18.0 - 75.0
18.0 - 75.0
18.0 - 75.0
18.0 - 75.0
18.0 - 75.0
3.3
5.0
2,400
2,000
1,000
800
240.0
200.0
100.0
80.0
3.9
6.8
78
82
84
84
82
84
84
78
82
84
84
82
84
84
1,500
1,500
1,500
1,500
1,500
1,500
1,500
750
508
595
595
508
595
595
212
254
298
298
254
298
298
10
10
10
10
10
10
5
12.0
15.0
±5.0
±12.0
±15.0
3.3
15.0
18.0
±6.8
±15.0
±18.0
3.9
±1000
±500
±400
2,400
2,000
1,000
800
±100.0
±50.0
±40.0
240.0
200.0
100.0
80.0
5
5.0
6.8
750
5
12.0
15.0
±5.0
±12.0
±15.0
15.0
18.0
±6.8
±15.0
±18.0
750
5
750
5
±1000
±500
±400
±100.0
±50.0
±40.0
750
5
750
5
750
Notes:
Derating Curve
1. When measuring output ripple, it is recommended that an external
0.47 μF ceramic capacitor be placed from the +Vout pin to the -Vout
pin for single output units and from each output to common for dual
output units. For noise sensitive applications, the use of 3.9 μF
capacitors will reduce the output ripple.
2. Transient recovery is measured to within a 1% error band for a
load step change of 75% to 100%.
3. Operation at no-load will not damage these units. However, they may
not meet all specifications.
5. Dual output units may be connected to provide a 10 VDC, 24 VDC
or 30 VDC output. To do this, connect the load across the positive
(+Vout) and negative (-Vout) outputs and float the output common.
6. The converter should be connected to a low ac-impedance source.
An input source with a highly inductive impedance may affect the
stability of the converter. In applications where the converter output
loading is high and input power is supplied over long lines, it may be
necessary to use a capacitor on the input to insure start-up.
In this case, it is recommended that a low Equivalent Series Resis-
tance (ESR <1.0Ω at 100 kHz) capacitor be mounted close to the
converter. A 10.0 μF is recommended for 24V input models; a 4.7μF
for 48V units.
7. It is recommended that a fuse be used on the input of a power supply
for protection. See the table above for the correct rating.
Mechanical Dimensions
Remote ON/OFF (Optional, see below)
Parameter
Min
Max
5.5 or Open
0.8
Units
VDC
VDC
mA
Capacitive
Load
Single Output
(μF Max)
Supply On
2.5
Supply Off
-0.7
Standby Input Current
Control Input Current (On)
Control Input Current (Off)
Control Common
10
50.0
μA
-100.0
mA
470
Referenced to Neg. Input (pin 2)
Remote ON/OFF Notes:
Dual Output
(μF Max)
1. Maximum sink current at the on/off pin (pin 6) during a logic
low is 100 μA.
±150
2. Maximum allowable leakage current of a switch connected to the
on/off terminal (Pin 6) at logic high (2.5V to 100V) is 50 μA.
Pin Connections
Pin
1
Single
+Vin
Dual
+Vin
2
-Vin
-Vin
3
+Vout
+Vout
4
5
No Pin
-Vout
Common
-Vout
Mechanical Notes:
• All dimensions are typical in inches (mm)
• Tolerance x.xx = ±0.01 (±0.25)
• Leads are gold plated for improved
solderability.
6
Remote On/Off
Remote On/Off
For Remote On/Off Option, add suffix “R” to model number (i.e. B1205RU-R)
MicroPower Direct
www.micropowerdirect.com
232 Tosca Drive Stoughton, MA 02072
■
TEL: (781) 344-8226
■
FAX: (781) 344-8481
■
E-Mail: sales@micropowerdirect.com
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