EMIF08-1005M16 데이터 시트보기 (PDF) - STMicroelectronics

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EMIF08-1005M16

8-line IPAD™ low capacitance EMI filter and ESD protection in QFN package

STMicroelectronics 

3

Recommendation on PCB assembly

EMIF08-1005M16

Recommendation on PCB assembly

3.1

Stencil opening design

1. General recommendation on stencil opening design

a. Stencil opening dimensions: L (Length), W (Width), T (Thickness).

2. General design rule

a. Stencil thickness (T) = 75 ~ 125 μm

b.

Aspect

ratio

=

W

T

≥

1.5

c.

Aspect

area

=

L×W

2T L + W

≥ 0.66

3. Reference design

a. Stencil opening thickness: 100 μm

b. Stencil opening for leads: Opening to footprint ratio is 90%.

Figure 12. Recommended stencil window position

L

TW

DS4994 - Rev 3

page 8/13

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