Model Selection Guide

Mechanical Dimensions

MicroPower Direct

www.micropowerdirect.com

232 Tosca Drive Stoughton, MA 02072

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TEL: (781) 344-8226

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FAX: (781) 344-8481

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E-Mail: sales@micropowerdirect.com

Mechanical Notes:

• All dimensions are typical in inches (mm)

• Tolerance x.xx = ±0.01 (±0.25)

• Leads are gold plated for improved

solderability.

Model

Number

Input

Output

Over

Voltage

Protection

(VDC)

Efficiency

(%, Typ)

Fuse Rating

Slow-Blow

(mA)

Voltage (VDC)

Current (mA)

Voltage

(VDC)

Current

(mA, Max)

Current

(mA, Min)

Nominal

Range

Full-

Load

No-

Load

B1201RU

24

9.0 - 36.0

423

10

3.3

2,400

240.0

3.9

78

1,500

B1202RU

24

9.0 - 36.0

508

10

5.0

2,000

200.0

6.8

82

1,500

B1203RU

24

9.0 - 36.0

595

10

12.0

1,000

100.0

15.0

84

1,500

B1204RU

24

9.0 - 36.0

595

10

15.0

800

80.0

18.0

84

1,500

B1205RU

24

9.0 - 36.0

508

10

±5.0

±1000

±100.0

±6.8

82

1,500

B1206RU

24

9.0 - 36.0

595

10

±12.0

±500

±50.0

±15.0

84

1,500

B1207RU

24

9.0 - 36.0

595

10

±15.0

±400

±40.0

±18.0

84

1,500

B1211RU

48

18.0 - 75.0

212

5

3.3

2,400

240.0

3.9

78

750

B1212RU

48

18.0 - 75.0

254

5

5.0

2,000

200.0

6.8

82

750

B1213RU

48

18.0 - 75.0

298

5

12.0

1,000

100.0

15.0

84

750

B1214RU

48

18.0 - 75.0

298

5

15.0

800

80.0

18.0

84

750

B1215RU

48

18.0 - 75.0

254

5

±5.0

±1000

±100.0

±6.8

82

750

B1216RU

48

18.0 - 75.0

298

5

±12.0

±500

±50.0

±15.0

84

750

B1217RU

48

18.0 - 75.0

298

5

±15.0

±400

±40.0

±18.0

84

750

Pin

Single

Dual

1

+Vin

+Vin

2

-Vin

-Vin

3

+Vout

+Vout

4

No Pin

Common

5

-Vout

-Vout

6

Remote On/Off

Remote On/Off

Pin Connections

Parameter

Min

Max

Units

Supply On

2.5

5.5 or Open

VDC

Supply Off

-0.7

0.8

VDC

Standby Input Current

10

mA

Control Input Current (On)

50.0

μA

Control Input Current (Off)

-100.0

mA

Control Common

Referenced to Neg. Input (pin 2)

For Remote On/Off Option, add suffix “R” to model number (i.e. B1205RU-R)

Notes:

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 <1.0

Ω 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.

Remote ON/OFF Notes:

1. Maximum sink current at the on/off pin (pin 6) during a logic

low is 100

μA.

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.

Single Output

(

μF Max)

470

Dual Output

(

μF Max)

±150

Capacitive

Load

Derating Curve