The copyright and authority for the interpretation of the products are reserved by MORNSUN

Specifications subject to change without notice

LH25-10B37

A/0-2012

Page 3 of 4

TYPICAL APPLICATIONS

L

+Vo

-Vo

L

N

N

C2

C1

T VS1 RL

NTC

FUSE

(Figure 1)

L

N

+Vo

-Vo

AC-DC

L

N

+Vo

-Vo

(Figure 2)

Note: This application is not supported for this series.

ca n u se MO RNS UN

’s FC- L 01D

FUSE

OUTPUT

N

L

N

L

LCM

MOV1

R2

R1

R3

CX

CY3

CY4

A CDC

CY1

CY2

(external circuit output same as above)

Figure 4: EMC application circuit PCB layout

Safety and recommend wiring: linewidth A≥3mm,B≥6mm,C≥9mm

EXTERNAL CAPACITORS TYPICAL VALUE(Unit:

µF)

MODEL

C1

C2

NTC

TVS1

LH25-10B37

1

68

5D-9

SMBJ43A

Note:

1. Output filtering capacitors C2 is electrolytic capacitors, It is recommended to use high frequency and low impedance electrolytic capacitors. For capacitance and current

of capacitor please refer to manufacture

’s datasheet. Voltage derating of capacitor should be 80% or above. C1 is use to filter high frequency noise，suggest choose 1µF.

TVS is recommended component to protect post-circuits (if converter fails). External input NTC is recommended to use 5D-9.

2. For standard EMC requirement, please refer to figure 1, if higher EMC requirement, please refer to figure 3.

MOV: Varistor, model: 561KD14, it is used to protect the device under surge;

R1 、R2：2

Ω/3W Winding resistor；

R3：1M

Ω/2W ；

CY1、CY2、CY3、CY4：102M/400VAC；

CX：224K/275VAC；

LCM：10mH-30mH；

FC-L01D：MORNSUN

’s 2KV/4KV Surge protector.

3. FUSE：recommended to use 3.15A/250V.

OUTLINE DIMENSIONS & RECOMMENDED FOOTPRINT

70.00

[2.756]

62.00

[2.440]

5

4

1

2

3

Trim

3

5

4

1

2

Trim

Ф1.00[0.039]

Ф1.50[0.059]

1

2

3

4

5

AC(N)

AC(L)

-Vo

+Vo

Pin

Funct ion

Trim

Trim

Note:

Unit:mm[inch]

Pin

tolerances:

±0.10mm[±0.004inch]

General tolerances:

±0.50mm[±0.020inch]

diameter

(Front View)

(Bottom View)

Note: grid2.54*2.54mm.

FOOTPRIN T DETAILS