文档介绍：SMD-codes DATABOOK
3 - pins
SMD-codes
Active SMD ponents
marking codes
• SMD-codes for active ponents:
• Diodes, Transistors, Thyristors, Integrated Circuits
• Conventional case drawings
• Pinouts
• Marking style
2010 EDITION
Eugene Turuta Martin Christian Turuta
Activvveee
ponents
marking codes
databook
INTRODUCTION
1. 2-pin CASES SMD PONENTS
2. 3-pin CASES SMD PONENTS
3. SOT-223 CASE SMD PONENTS
4. SOT-89 CASE SMD PONENTS
5. 4-pin CASES SMD PONENTS
6. 5-pin CASES SMD PONENTS
7. SOT-89-5 CASE SMD PONENTS
8. 6 and more pin CASES SMD PONENTS
9. BGA and LLP CASES SMD PONENTS
10. CONVENTIONAL CASE DRAWINGS
11. CASES PIN ASSIGNMENTS / PINOUTS
12. PIN / TERMINAL FUNCTION (Table)
13. SMD-CODE MARKING STYLE
14. SAMPLE SCHEMATIC DIAGRAM
15. LOGOS, CONTACT and WEB-ADRESSES OF THE NANUFACTURERS
Toronto, 2010 edition
Introduction
Surface mount devices (SMDs) are used in a growing number mercial and industrial products. SMDs
have improved performance over through-ponents due to their smaller size, shorter internal leads, and
smaller board layouts. These factors reduce the circuit’s parasitic inductance and capacitance. SMDs can also be
more cost effective than traditional through-ponents due to the smaller board size, fewer board layers,
and fewer holes. Today more than 50% of active ponents are surface-mounted.
At the same time, SMD devices are, by their very nature, too small to carry conventional semiconductor type
numbers. Therefore, a somewhat arbitrary coding system has grown up, where the device package carries a simple
one, two or more character or graphic SMD code. Thus it is necessary to take into account that the colour and (or)
placing of alphanumeric or graphic symbols are also important.
Identifying the manufacturers type number of an SMD device from the package code can be a difficult task.
Unfortunately, each device code is not necessarily unique.
It is possible for various manufacturers to p