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MSA_(M)D-3W&MSB_(M)D-3W

B/0-2012

Page 5 of 6

OUTLINE DIMENSIONS, RECOMMENDED FOOTPRINT & PACKAGING

MECHANICAL DIMENSIONS

RECOMMENDED FOOTPRINT

DUAL OUTPUT

12 3

12

11

10

(Bottom View)

31.50[1.240]

MS_D

MS_MD

31.80[1.252]

27.94 [1.100]

2.54 [0.100]

15 14 13

22

23

24

12 3

10 11 12

24 23 22

13

14

15

∅1.00 [0.039]

Note:

Unit:mm[inch]

Pin diameter tolerances:

±0.10mm[±0.004inch]

General tolerances:

±0.25mm[±0.010inch]

TUBE OUTLINE DIMENSIONS

SINGLE OUTPUT

Note:

Unit :mm[inch]

General tolerances:

±0.50mm[±0.020inch]

L=530mm[20.866inch] Tube Quantity: 15pcs

L=220mm[8.661inch]

Tube Quantity: 6pcs

1,24

3,22

2,23

10,15

11,14

No Pin

Vin

GND

-Vo

+Vo

0V

12,13

Vin

GND

0V

No Pin

0V

+Vo

Pin

Single

Dual

FO OTPRINT DETAILS

NC:No connection

∅0.50 [0.020]

(Front View)

Short tube inner package dimensions: L*W*H= 255*170*80mm

Short tube outer package dimensions(with six inner package boxes):

L*W*H= 375*280*270mm

Long tube inner package dimensions:

L*W*H= 580*200*100mm

Long tube outer package dimensions(with two inner package boxes):

L*W*H= 600*215*220mm

Long tube outer package dimensions(with three inner package boxes):

L*W*H= 600*215*325mm

13

14

15

12

11

10

1

24

Note: grid 2.54*2.54mm.

23.50[0.925]

10.50[0.413]

TEST CONFIGURATIONS

Input Reflected-Ripple Current Test Setup

Input reflected-ripple current is measured with an inductor Lin and Capacitor Cin to simulate source impedance.

DC

Cin

Lin

DC

Load

Oscilloscope

Current

Probe

Lin(4.7

µH)

Cin(220

µF, ESR < 1.0Ω at 100 KHz)

DESIGN CONSIDERATIONS

1) Requirement on output load

To ensure this module can operate efficiently and reliably, During operation, the minimum output load could not be less than 10% of the full load.

If the actual output power is very small, please connect a resistor with proper resistance at the output end in parallel to increase the load, or use our

company

’s products with a lower rated output power.

2) Overload Protection

Under normal operating conditions, the output circuit of these products has no protection against overload. The simplest method is add a circuit

breaker to the circuit.

3) Recommended circuit

All the MSA_(M)D-3W & MSB_(M)D-3W Series have been tested according to the following recommended testing circuit before leaving

factory(Figure 3).

If you want to further decrease the input/output ripple, you can increase a capacitance properly or choose capacitors with low ESR. However, the

capacitance of the output filter capacitor must be proper. If the capacitance is too big, a startup problem might arise. For every channel of output,

provided the safe and reliable operation is ensured, the greatest capacitance of its filter capacitor must less than the Max. Capacitive Load. Generally:

If you want to use the products in high EMI, please choose our metal packaged products (MSA_MD-3W & MSB_MD- 3W).

General: Cin:

5V&12V

100

μF

24V&48V

10

μF~47μF

Cout: 10

μF/100mA