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AD6548

更新时间： 2024-11-27 01:18:39

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
6页	395K
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Tape and Reel Packaging

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Tape and Reel Packaging

Introduction

Speciﬁcations

The electronics industry is making a tremendous investment in surface-

mount technology. The reasons for this investment include cost savings

resulting from automated component placement and increased density

of PCB layout due to smaller package sizes.

Analog Devices’ tape and reel speciﬁcations are in conformance with the

EIA Standard 481 “Taping of Surface-Mount Components for Automatic

Placement.”

ESD Protection

Today’s placement machines can pick and place thousands of components

per hour with a very high degree of accuracy. To achieve this performance,

the component delivery system must be capable of feeding parts at high

speeds in a consistent orientation, positively indexed to the demands of the

machine. The leads of the components must be protected from damage

during shipment, handling, and placement.

Analog Devices’ tape and reel delivery system is designed to offer a very

(

)

high degree of protection against electrostatic discharge ESD . All tape

and reel materials are static-dissipative. In addition, drypacked reels are

shipped in moisture barrier bags; nondrypacked reels are shipped in a box

with ESD conductive coating or in a conductive ESD bag. To retain the bene-

ﬁts of this protection, the bags should be opened only at ESD controlled

workstations by trained personnel.

The preferred packing material available today for these demands is

tape and reel. Analog Devices’ tape and reel system is fully compatible

with the detaping equipment that is standard in most automated place-

ment equipment.

Peel Back Strength

The peel back force will be between 10 g and 100 g for 8 mm wide

tape and 10 g to 130 g for tapes 12 mm and wider when tested at room

temperature and pulled at a 175° to 180° angle with a peel-off speed of

300 ± 10 mm/min.

In the tape and reel format, the components are placed in specifically

designed pockets embossed in a plastic carrier tape. The cover tape is

sealed to the carrier tape to keep the parts in place in these pockets. A row

of sprocket holes is provided along one edge of the embossed tape to facili-

tate positive indexing. The tape is then wound onto a rigid plastic reel that

provides mechanical protection during handling and storage. These reels

are dust-free and compatible with a clean environment.

Direction of Feed

Direction of feed is deﬁned as the direction in which the end user unreels

the tape. The direction of feed for all products is counterclockwise when the

reel is held with the round sprocket holes facing the observer.

Figure 1. Direction of feed.

www.analog.com

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与AD6548相关器件

型号	品牌	获取价格	描述	数据表
AD654JCHIPS	ADI	获取价格	AD654JCHIPS
AD654JN	ADI	获取价格	Low Cost Monolithic Voltage-to-Frequency Converter
AD654JN/+	ETC	获取价格	Voltage-to-Frequency Converter
AD654JNZ	ADI	获取价格	Low Cost Monolithic Voltage-to-Frequency Converter
AD654JNZ/+	ADI	获取价格	VOLTAGE-FREQUENCY CONVERTER, 0.5MHz, PDIP8, MINI, PLASTIC, DIP-8
AD654JR	ADI	获取价格	Low Cost Monolithic Voltage-to-Frequency Converter
AD654JR-REEL	ADI	获取价格	Low Cost Monolithic Voltage-to-Frequency Converter
AD654JR-REEL7	ADI	获取价格	Low Cost Monolithic Voltage-to-Frequency Converter
AD654JRZ	ADI	获取价格	Low Cost Monolithic Voltage-to-Frequency Converter
AD654JRZ-REEL	ADI	获取价格	Low Cost Monolithic Voltage-to-Frequency Converter

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