What is New in IPC-7351C.pdf - 第35页

PC B L ibr ar i es Pr e s ents : Wh at is N ew i n IPC- 7351C N ew S old e r Join t G oa l R ecom mend a t i on s Pr opo r ti on a l SMD Pad St ack 25 % P it ch 3 0% Pit ch 5% Pit ch 20 % P it ch G ull w i ng Le a d Sha …

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PCB Libraries Presents:
What is New in IPC-7351C
New Land Pattern Naming Convention
Manufacturer Names and Abbreviations
Abbreviation
Manufacturer’s Name
Abbreviation
Manufacturer’s Name
TI
Texas Instruments
LATTICE
Lattice Semiconductor
AMD
Advanced Micro Devices
SA
State of the Art
ST
ST Microelectronics
CDE
Cornell
DubilierElectron
TE
TE Connectivity
CTS
CTS
KOA
KOA Speer Electronics
MOLEX
Molex
NXP
NXP Semiconductors
ALD
Advanced Linear Devices
HTK
Honda Tsushin Kogyo
CYPRESS
Cypress Semiconductor
JAE
Japan Aviation Electron..
FOX
Fox Electronics
IQD
IQD Frequency
Products
IDT
Integrated Device Tech..
KEMET
Kemet
DIODES
Diodes, Inc.
PCB Libraries Presents:
What is New in IPC-7351C
New Solder Joint Goal Recommendations
Proportional SMD Pad Stack
25% Pitch
30% Pitch
5% Pitch 20% Pitch
Gullwing
Lead Shape Toe Heel Side
2.54
mm Pitch (DPAK) 0.63 0.76 0.13 0.50
1.27
mm Pitch 0.30 0.35 0.06 0.25
1.00
mm Pitch 0.25 0.30 0.05 0.20
0.08
mm Pitch 0.20 0.25 0.04 0.16
0.65
mm Pitch 0.16 0.20 0.03 0.13
0.50
mm Pitch 0.13 0.15 0.02 0.10
0.40
mm Pitch 0.10 0.12 0.01 0.08
0.35
mm Pitch 0.09 0.10 0.00 0.07
Component Families
Small Outline IC (SOIC)
Small Outline Package (SOP)
Quad Flat Package (QFP)
Small Outline Transitor (SOT23)
Small Outline Transitor (SOT223)
Small Outline Transitor (SOT143)
Small Outline Diode (SOD)
Ceramic Flat Package (CFP)
Ceramic Quad flat Package (CQFP)
TO (DPAK)
Pad Length =
Nominal Lead Length + Toe + Heel
Pad Width =
Nominal Lead Width + Side
PCB Libraries Presents:
What is New in IPC-7351C
Old/New Solder Joint Goal Recommendations
1.00 pitch
0.35 Toe / Heel
Toe
1.00 pitch
0.25 Toe / 0.35 Heel
0.80 pitch
0.35 Toe / Heel
0.80 pitch
0.20 Toe / 0.30 Heel
0.65 pitch
0.35 Toe / Heel
0.65 pitch
0.16 Toe / 0.20 Heel
Heel
Toe
Heel
0.40 pitch
0.35 Toe / Heel
0.40 pitch
0.10 Toe / 0.12 Heel
0.35 pitch
0.35 Toe / Heel
0.35 mm pitch
0.09 Toe / 0.10 Heel
0.50 pitch
0.35 Toe / Heel
0.50 pitch
0.13 Toe / 0.15 Heel
Toe
Heel