Automotive and Anti-Sulfuration Chip Resistor
0603
Description
The resistors are constructed in a high grade ceramic body (aluminium 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
Features:
•
•
•
•
•
High reliability and stability ±1%
Sulfuration resistant
Automotive grade AEC Q-200 compliant
100% CCD inspection
Lead-free
Applications:
Automotive application
Consumer electrical equipment
EDP, computer application
Telecom application
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 a Tin (lead free) alloy
Laser Trimmed
Resistive
Element
Primary Layer
Termination
Protective Layer
Marking
Alumina substrate
Construction of a Chip-R
Quick Reference Data
Item
Series no.
Size code
Resistance range
Resistance tolerance
TCR (ppm/°C)
R > 1MΩ
10Ω < R ≤ 1MΩ
R ≤ 10Ω
Maximum dissipation at T
amb
= 70°C
Maximum operation voltage (DC or RMS)
Maximum overload voltage (DC or RMS)
Climatic category (IEC 60068)
General Specification
MCMR06
0603
1Ω to 10MΩ (±5% tolerance),
Jumper 1Ω to 10MΩ (±1% tolerance)
±1%
E96 / E24
≤ +200
≤ +100
-200 to +400
1/10W
75V
150V
55/155/56
±5%
E24
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Automotive and Anti-Sulfuration Chip Resistor
0603
Note:
1. This is the maximum voltage that may be continuously supplied to the resistor element, see “IEC publication 60115-8”
2. Maximum operation voltage : So called RCWV (rated continuous working voltage) is determined by
RCWV = √ Rated Power × Resistance Value or maximum RCWV listed above, whichever is lower
3. The resistance of jumper is defined < 0.05Ω
Protective Coat
T
Tb
Tt
End Termination
Resistive Layer
Ceramic Substrate
Protective Coat
W
L
Dimensions (mm)
MCMR06
(0603)
L
1.6 ±0.1
W
0.8 ±0.1
T
0.45 ±0.15
Tb
0.3 ±0.15
Tt
0.2 ±0.1
Derating
The power that the resistor can dissipate depends on the operating temperature
Rated Power (%)
Ambient Temperature (°C)
Max. dissipation in percentage of rated power as a function of the ambient temperature
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Automotive and Anti-Sulfuration Chip Resistor
0603
Marking
Size \ No. of Digit of Code \ Tolerance
MCMR06 (0603)
3-digits marking (±5% : 0603)
Each resistor is marked with a three digits code on the protective coating to designate the nominal resistance value
±5%
3-digits marking
±1%
3-digits marking
3-Digits Marking (1% : 0603)
Nominal Resistance
1. E-24 series
2. E-96 series
As 0603 WR06X ±5%
The 1st two digit codes are referring to the CODE on the table, the 3rd code is the index of
resistance value:
Y = 10
-2
, X = 10
-1
, A = 10
0
, B = 10
1
, C = 10
2
, D = 10
3
, E = 10
4
, F = 10
5
EX : 17.8Ω = 25 X, 178Ω = 25 A, 1K78 = 25 B
17K8 = 25 C, 178 K = 25 D, 1M78 = 25 E
There is no marking for the items are not under E-24 and E-96 series
Code
13
14
15
16
17
18
19
20
21
22
23
24
R_value
133
137
140
143
147
150
154
158
162
165
169
174
Code
25
26
27
28
29
30
31
32
33
34
35
36
R_value
178
182
187
191
196
200
205
210
215
221
226
232
Code
37
38
39
40
41
42
43
44
45
46
47
48
R_value
237
243
249
255
261
267
274
280
287
294
301
309
Code
49
50
51
52
53
54
55
56
57
58
59
60
R_value
316
324
332
340
348
357
365
374
383
392
402
412
Code
61
62
63
64
65
66
67
68
69
70
71
72
R_value
422
432
442
453
464
475
487
499
511
523
536
549
Code
73
74
75
76
77
78
79
80
81
82
83
84
R_value
562
576
590
604
619
634
649
665
681
698
715
732
Code
85
86
87
88
89
90
91
92
93
94
95
96
R_value
750
768
787
806
825
845
866
887
909
931
953
976
Description
3. Remark
Code
1
2
3
4
5
6
7
8
9
10
11
12
R_value
100
102
105
107
110
113
115
118
121
124
127
130
Example
Resistance
3-digits marking (0603 ±5% )
10Ω
100
12Ω
120
100Ω
101
6,800Ω
682
47,000Ω
473
Functional Description
Product characterization
Standard values of nominal resistance are taken from the E24 series for resistors with a tolerance of ±5%, and E24+E96
series for resistors with a tolerance of ±1%. The values of the E24 / E96 series are in accordance
with “IEC publication 60063”
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Automotive and Anti-Sulfuration Chip Resistor
0603
Mounting:
Due to their rectangular shapes and small tolerances, surface mountable resistors are suitable for handling by automatic
placement systems
Chip placement can be on ceramic substrates and printed-circuit boards (PCBs)
Electrical connection to the circuit is by individual soldering condition
The end terminations guarantee a reliable contact
Soldering Condition
The robust construction of chip resistors allows them to be completely immersed in a solder bath of 260°C for 10 seconds.
Therefore, it is possible to mount surface mount resistors on one side of a PCB and other discrete components on the reverse
(mixed PCBs)
Surface mount resistors are tested for solderability at 235°C during 2 seconds. The test condition for no leaching is 260°C
for 30 seconds. Typical examples of soldering processes that provide reliable joints without any damage are given in below.
Temperature (°C)
Time (s)
Infrared soldering profile for Chip Resistors
Test and Requirements
Essentially all tests are carried out according to the schedule of IEC publication 115-8, category LCT/UCT/56 (rated tempera-
ture range : Lower Category Temperature, Upper Category Temperature; damp heat, long term, 56 days). The testing also
meets the requirements specified by EIA, EIAJ and JIS
The tests are carried out in accordance with IEC publication 68, “Recommended basic climatic and mechanical robustness
testing procedure for electronic components” and under standard atmospheric conditions according to IEC 60068-1, sub-
clause 5.3. Unless otherwise specified, the following value supplied :
Temperature : 15°C to 35°C
Relative humidity : 45% to 75%
Air pressure : 86kPa to 106kPa (860 mbar to 1,060 mbar)
All soldering tests are performed with midly activated flux
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Automotive and Anti-Sulfuration Chip Resistor
0603
Test and Requirements
Test
Procedure / Test Method
- DC resistance values measurement
- Temperature Coefficient of Resistance (T.C.R)
Natural resistance change per change in degree
centigrade
R2 - R1
× 10
6
(ppm/°C) t
1
: 20°C +5°C -1°C
R1 (t2 - t1)
R1 : Resistance at reference temperature
R2 : Resistance at test temperature
Resistance to soldering
heat (R.S.H)
MIL-STD-202 method 210
Un-mounted chips completely immersed for 10
±1 second in a SAC solder bath at 270°C ±5°C
a) Bake the sample for 155°C dwell time 4
hours / solder dipping 235°C / 5 s
b) Steam the sample dwell time 1 hour/ solder
dipping 215°C/ 5 s
c) Steam the sample dwell time 1 hour/ solder
dipping 260°C / 7 s
1,000 cycles, -55°C to +155°C, dwell time 5 to
10mins
65 ±2°C, 80 to 100% RH, 10 cycles, 24 hours /
cycle
1,000 +48/-0 hours; 85°C, 85% RH, 10% of
operation Power
1,000 +48/-0 hours; 35% of operation power,
125 ±2°C
ΔR/R Max. ± (0.5%+0.05Ω)
No visible damage
< 50mΩ
Requirement
Resistance ±5%, ±1%
0Ω
Electrical Characteristics
JISC5201-1: 1998
Clause 4.8
Within the specified tolerance
Refer to “Quick Reference Data”
Solderability
J-STD-002
95% coverage minimum, good tinning
No visible damage
Temperature cycling
JESD22
method JA-104
Moisture Resistance
MIL-STD-202
method 106
Bias Humidity
MIL-STD-202
method 103
Operational Life
MIL-STD-202 method 108
High Temperature
Exposure
MIL-STD-202 method 108
Mechanical Shock
MIL-STD-202 method 213
Board Flex
AEC-Q200-005
Terminal strength
AEC-Q200-006
Vibration
MIL-STD-202 method 204
Thermal shock
MIL-STD-202 method 107
ESD
AEC-Q200-002
ΔR/R Max. ± (0.5%+0.05Ω)
No visible damage
ΔR/R Max. ± (0.5%+0.05Ω)
No visible damage
ΔR/R Max. ± (1%+0.05Ω)
No visible damage
ΔR/R Max. ± (1%+0.05 Ω)
No visible damage
< 50mΩ
< 50mΩ
< 50mΩ
< 50mΩ
< 50mΩ
< 50mΩ
< 50mΩ
1,000+48/-0 hours; without load in a temperature ΔR/R Max. ± (1%+0.05 Ω)
chamber controlled 155±3°C
No visible damage
1/2 sine pulse / 1,500 g peak / Velocity 15.4 ft/s
Resistors mounted on a 90 mm glass epoxy
resin PCB(FR4), bending once 2 mm for 10 s
Pressurizing force: 1 Kg, Test time: 60±1 s
Test 5 g’s for 20 minimum, 12 cycles each of
3 orientations
Test –55 to 155 / dwell time 15 minimum /
maximum transfer time 20 seconds 300 cycles
Test contact 1 KV ( 0.5 KV for 0402 only)
Within the specified tolerance
No visible damage
ΔR/R Max. ± (1%+0.05 Ω)
No visible damage
No remarkable damage or removal of
the terminations
ΔR/R Max. ± (1%+0.05 Ω)
No visible damage
ΔR/R Max. ± (0.5%+0.05 Ω)
No visible damage
ΔR/R Max. ± (1%+0.05 Ω)
No visible damage
< 50mΩ
< 50mΩ
< 50mΩ
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