The unit price of 5,000 whole lots, and so on.
Patch resistance is commonly encapsulated
Patch resistance is commonly encapsulated
9
Species, represented by two size code.A size code is by
4
Numeral
EIA(
American Electronics Industry Association
)
Code, the first two and the latter two represent the length and width of the resistance, respectively, in the inch unit.We often say
0603
Packaging refers to the British code.The other is the rice -made code, which is also reasonable
4
The digital number indicates that its unit is millimeter.The following table lists the relationship between the British and public system and the detailed size of the patch resistance package:
Patch component packaging
one,
Part
:
(a)
, Specifications of the parts, the shape of the parts,
SMT
To date, the industry has formed a standard part series to facilitate operation, and all parts suppliers are manufactured according to this standard.
The size and specifications of the standard parts include two representative methods: British and public system, as shown in the following table
British statement
1206 0805 0603 0402
Public statement
3216 2125 1608 1005
meaning
L:1.2inch(3.2mm)W:0.6inch(1.6mm)
L:0.8inch(2.0mm)W:0.5inch(1.25mm)
L:0.6inch(1.6mm)W:0.3inch(0.8mm)
L:0.4inch(1.0mm)W:0.2inch(0.5mm)
Note:
a
As well as
L
(
Length
):length;
W
(
Width
):width;
inch
:inch
b
As well as
1inch=25.4mm
(
b
),exist
(1)
The thickness of the parts is not mentioned in this point. At this point, the parts are different due to the different parts, and the actual quantity should be measured during production.
(
c
) The above is mainly the resistance (discharge) and capacitance (exclusive) in the electronic product. Others such as inductance, diode, transistor, etc.No discussion.
(
d
),,,
SMT
Since development, with the continuous improvement of the integration of electronic products, standard parts have gradually developed towards miniaturization. Now the smallest standard parts have arrived
0201
Essence
2. Common component packaging
1
)resistance:
The most common are
0805
As well as
0603
The two categories, the difference is that it can appear as an excretion, four or eight, and the specific packaging style can be referred to
MD16
The simulation version can also be inside the design office
PCB
Library query.
Note:
ABCD
The four types of packaging are its specific size
,
The label form is
L X S X H
1210
Specific size and electrolytic capacitor
B
kind
3528
The same type
0805
specific size:
2.0 X 1.25 X 0.5
(Public statement)
1206
specific size:
3.0 X 1.5 0X 0.5
(Public statement)
2
) The naming method of resistance
1
As well as
5%
Naming of accuracy:
RS - 05 K 102 JT
2
As well as
1
% precision naming:
RS - 05 K 1002 FT
R
-Exical resistance
S
-Exical power
0402
yes
1/16W
As well as
0603
yes
1/10W
As well as
0805
yes
1/8W
As well as
1206
yes
1/4W
As well as
1210
yes
1/3W
As well as
1812
yes
1/2W
As well as
2010
yes
3/4W
As well as
2512
yes
1W
Essence
05
-The size
(
inch
)
The
02
express
0402
As well as
03
express
0603
As well as
05
express
0805
As well as
06
express
1206
As well as
1210
express
1210
As well as
1812
express
1812
As well as
10
express
1210
As well as
12
express
2512
Essence
K
- Indicates that the temperature coefficient is
100PPM
Essence
102
-
5
% Precision resistance value indication method:
The first two digits represent valid numbers, the third digit represents how many zeros are, the basic unit is
Ω
,,
102
=
1000Ω
=
1kΩ
Essence
1002
yes
1
% Resistance value:
The top three indicate effective numbers, and the fourth place indicates how many zero, the basic unit is
Ω
,,
1002
=
10000 ω
=
10kΩ
Essence
J
-The accuracy is
5
%,
F
-The accuracy is
1
%.
T
-The compile belt packaging