Walsin Technology Corporation
WA04, WA06
±
1%,
±
5%, Convex Type & Concave Type
General purpose chip resistors array
Size 0402x2 (4p2R)
Size 0402x4, 0603x4 (8p4R)
Size 0602x8 (16p8R)
Customer
:
Approval No :
Issue Date
:
Customer Approval :
Page 1 of 9
WA04, WA06
Ver.12
Jan.-2010
Walsin Technology Corporation
FEATURE
1. Small size and light weight
2. Reduced size of final equipment
3. Lower surface mounted assembly costs
4. Higher component and equipment reliability
5. Lead (Pb) free terminations is available.
APPLICATION
•
•
•
Consumer electrical equipment
EDP, Computer application
Telecom
DESCRIPTION
The resistors array is constructed in a high grade ceramic body (aluminum oxide). Internal metal electrodes are
added at each end and connected by a resistive paste that is applied to the top surface of the substrate. The
composition of the paste is adjusted to give the approximate resistance required and the value is trimmed to
within tolerance by laser cutting of this resistive layer.
The resistive layer is covered with a protective coat. Finally, the two external end terminations are added. For
ease of soldering the outer layer of these end terminations is Lead free terminations..
Fig 1. Consctruction of a Chip-R array(convex Type)
Fig 2. Consctruction of a Chip-R array(concave Type)
Page 2 of 9
WA04, WA06
Ver.12
Jan.-2010
Walsin Technology Corporation
QUICK REFERENCE DATA
Item
Series No.
Size
Resistance
Tolerance
Resistance Range
TCR (ppm/°C)
10Ω≤R≤1MΩ
R<10Ω, R>1MΩ
Max. dissipation at
T
amb
=70°C
Max. Operation
Voltage (DC or
RMS)
Max. overload
voltage
Climatic category
General Specification
WA04Y(Convex)
0402x2 (1005x2)
±5%
3Ω ~ 1MΩ,
Jumper
WA04X(Convex)
0402x4 (1005x4)
±1%
±5%
10Ω ~
1MΩ
≤ ±
300
-
3Ω ~ 1MΩ
Jumper
WA06X(Convex)
0603x4 (1608x4)
±1%
±5%
10Ω ~
1MΩ
≤ ±100
-
1Ω ~
10MΩ
Jumper,
≤ ±200
300~+500
WA06W(Convex)
0602x8 (1605x8)
±1%
±5%
10Ω ~
100KΩ,
≤ ±200
-
10Ω ~
100KΩ
Jumper,
≤ ±
200
-
WA06T(Concave)
0603x4 (1608x4)
±1%
±5%
10Ω ~
1MΩ,
≤ ±
200
-
10Ω ~
1MΩ,
Jumper
≤ ±
200
-
≤ ±
300
≤ ±
400
1/16 W
25V
50V
≤ ±
300
300~+500
1/16 W
25V
50V
55/155/56
1/10 W
50V
100V
1/16 W
50V
100V
55/155/56
1/10 W
50V
100V
55/155/56
Note :
1.
2.
3.
Climatic category refer to IEC 60068
This is the maximum voltage that may be continuously supplied to the resistor element, see “IEC publication
60115-8”
Max. Operation Voltage : So called RCWV (Rated Continuous Working Voltage) is determined by
RCWV
=
Rated Power
×
Resistance Value
or Max. RCWV listed above, whichever is lower.
Dimensions
(unit : mm)
WA04Y
L
W
T
P
A
Ta
Tb
1.00
±
0.10
1.00
±
0.10
0.35
±
0.10
0.65
±
0.10
0.34
±
0.10
0.20
±
0.15
0.25
±
0.17
W
T
a
P
T
T
b
A
L
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WA04, WA06
Ver.12
Jan.-2010
Walsin Technology Corporation
WA04X
L
W
T
P
A
B
C
G
2.00
±
0.10
1.00
±
0.10
0.45
±
0.10
0.50
±
0.05
0.40
±
0.10
0.20
±
0.10
0.30
±
0.05
0.25
±
0.10
WA06X
3.20
±
0.10
1.60
±
0.10
0.50
±
0.10
0.80
±
0.10
0.60
±
0.10
0.30
±
0.10
0.40
±
0.10
0.30
±
0.20
WA06W
L
W
T
B
G
D
P
H1
H2
4.00
±
0.20
1.60
±
0.15
0.45
±
0.10
0.30
±
0.20
0.30
±
0.20
0.20
±
0.10
0.50
±
0.20
0.40
±
0.20
0.30
±
0.10
WA06T
L
W
T
P
A
B
C
G
3.20+0.20/-0.10
1.60+0.20/-0.10
0.60
±
0.10
0.80
±
0.10
0.60
±
0.15
0.35
±
0.15
0.50
±
0.15
0.50
±
0.15
Page 4 of 9
WA04, WA06
Ver.12
Jan.-2010
Walsin Technology Corporation
Marking
3-digits marking for E24 series 1% ,5% products
Each resistor is marked with a three digits code on the protective coating to designate the nominal resistance
value. For values up to 9.1 the R is used as a decimal point. For values of 10.0 or greater the first 2 digits
apply to the resistance value and third indicate the number of zeros to follow.
Example
RESISTANCE
3-digits marking
4.7Ω
4R7
10Ω
100
100Ω
101
6800Ω
682
47000Ω
473
No marking for WA04Y chip resistors array and E96 series resistance.
FUNCTIONAL DESCRIPTION
Product characterization
Standard values of nominal resistance are taken from the E24 series for resistors with a tolerance of
±5%,
The values of the E24 series are in accordance with “IEC publication 60063”
Standard values of nominal resistance are taken from the E24/E96 series for resistors with a tolerance of
±1%,
The values of the E24/E96 series are in accordance with “IEC publication 60063”
Derating
The power that the resistor can dissipate depends on the operating temperature; see Fig.3.
Figure 3
Maximum dissipation in percentage of rated power as a
function of the ambient temperature
CONSTRUCTION
R1=R2=R3=R4
Page 5 of 9
WA04, WA06
Ver.12
Jan.-2010
