DATA SHEET
THIN FILM CHIP RESISTORS
AUTOMOTIVE GRADE
AT series
0.1% TO 1%, TC 25 TO TC50
sizes 0402/0603/0805/1206
RoHS compliant
Product specification – December 11, 2015 V.3
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Dec. 11, 2015 V3
Product specification
2
9
SERIES
AT
0402 to 1206
ORDERING INFORMATION - GLOBAL PART NUMBER
Part number is identified by the series name, size, tolerance, packaging
type, temperature coefficient, taping reel and resistance value.
SCOPE
This specification describes AT0402 to
AT1206 high precision-high stability
chip resistors with lead-free
terminations made by thin film
process.
APPLICATIONS
Automotive electronics
Industrial and medical equipments
Test and measuring equipments
Telecommunications
FEATURES
AEC-Q200 qualified
Superior resistance against sulfur
containing atmosphere
Moisture sensitivity level: MSL 1
Products with lead free
terminations meet RoHS
requirements
Reducing environmentally
hazardous wastes
High component and equipment
reliability
Non-forbidden materials used in
products/production
Halogen free epoxy
ORDERING EXAMPLE
The ordering code of a AT0402 chip resistor, TC 25 value 56Ω with ±
0.5% tolerance, supplied in 7-inch tape reel is: AT0402DRD0756RL.
NOTE
1. All our Rchip products meet RoHS compliant and Halogen Free. "LFP" of the
internal 2D reel label mentions "Lead Free Process".
2. On customized label, "LFP" or specific symbol can be printed.
GLOBAL PART NUMBER
AT XXXX X X X XX XXXXX L
(1) (2) (3) (4) (5) (6) (7)
(1) SIZE
0402 / 0603 / 0805 / 1206
(2) TOLERANCE
B = ±0.1%
C = ±0.25%
D = ±0.5%
F = ±1%
(3) PACKAGING TYPE
R = Paper taping reel
(4) TEMPERATURE COEFFICIENT OF RESISTANCE
D = 25 ppm/°C
E = 50 ppm/°C
(5) TAPING REEL
07 = 7 inch dia. Reel
(6) RESISTANCE VALUE
There are 2~4 digits indicated the resistor value.
Letter R/K/M is decimal point
Example: 100R = 100Ω
1K = 1,000Ω
(7) DEFAULT CODE
Letter L is the system default code for ordering only. (NOTE)
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Dec. 11, 2015 V3
Product specification
3
9
SERIES
AT
0402 to 1206
MARKING
AT0402
No marking
AT0603
E-96 series: including values 10/11/13/15/20/75 of E-24 series, 3 digits
E-24 series: exception values 10/11/13/15/20/75 of E-24 series, one short bar
under marking letter
AT0805 / AT1206
Both E-24 and E-96 series: 4 digits
First three digits for significant figure and 3rd digit for number of zeros
NOTE
For further marking information, please see special data sheet “Chip resistors marking”.
Fig. 5 Value = 10 KΩ
Fig. 1
CONSTRUCTION
A metal film layer is deposited on a high
grade ceramic body (aluminium oxide).
This resistive layer is trimmed to its
nominal value and on both ends a contact
is made which will guarantee optimum
solderability. This is achieved by applying
several layers and for ease of soldering the
outer layer consists of Ni/matte tin. The
resistive layer is covered with a protective
coating.
Fig. 6 Chip resistor outlines
O
OU
UT
TL
LI
IN
NE
ES
S
Fig. 3 Value = 12.4 Ω
Fig. 4 Value = 56 KΩ
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Dec. 11, 2015 V3
Product specification
4
9
SERIES
AT
0402 to 1206
TYPE
L (mm)
W (mm)
H (mm)
I1 (mm)
I2 (mm)
AT0402
1.00 ±0.10
0.50 ±0.05
0.30 ±0.05
0.20 ± 0.10
0.25 ± 0.10
AT0603
1.60 ±0.10
0.80 ±0.10
0.45 ±0.10
0.25 ± 0.15
0.25 ± 0.15
AT0805
2.00 ±0.10
1.25 ±0.10
0.50 ±0.10
0.35 ± 0.20
0.35 ± 0.20
AT1206
3.10 ±0.10
1.60 ±0.10
0.55 ±0.10
0.45 ± 0.20
0.40 ±0.20
Table 1
DIMENSIONS
TYPE
Operating
Temperature
Range
Power
Rating
Max.
Working
Voltage
Max.
Overload
Voltage
Dielectric
Withstanding
Voltage
Resistance Range (E-24/E-96 series)(Ω) & Tolerance
T.C.R. (ppm/°C)
±0.1%
±0.25%
±0.5%
±1%
AT0402
–55 °C to +155 °C
1/16W
50 V
100 V
100 V
±25
± 50
10~100K
AT0603
1/10W
75V
150 V
100 V
10~330K
AT0805
1/8W
150 V
300 V
300 V
10~1M
AT1206
1/4W
200 V
400 V
500 V
ELECTRICAL CHARACTERISTICS
Table 2
PRODUCT TYPE
PATKING STYLE
REEL DIMENSION
QUANTITY PER REEL
AT0402
Paper taping reel
7" (178 mm)
10,000 Units
AT0603
Paper taping reel
7" (178 mm)
5,000 Units
AT0805
Paper taping reel
7" (178 mm)
5,000 Units
AT1206
Paper taping reel
7" (178 mm)
5,000 Units
NOTE: for paper tape and reel specification/dimensions, please see the special data sheet “packing” document.
PACKING STYLE AND PACKAGING QUANTITY
Table 3 Packing style and packaging quantity
FOOTPRINT AND SOLDERING PROFILES
For recommended footprint and soldering profiles, please see the special data sheet “Chip resistors mounting”.
RESISTANCE
RANGE
TEMPERATURE COEFFICIENT OF RESISTANCE
PT040
2
100 MΩ TO 910 MΩ
100 mΩ to 910 mΩ
± 200 ppm/°C
PT060
3
± 200 ppm/°C
PT080
5
± 200 ppm/°C
PT120
6
100 mΩ
> 100 mΩ
PT201
0
± 100 ppm/°C
±75 ppm/°C
PT251
2
± 100 ppm/°C
±75 ppm/°C
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Dec. 11, 2015 V3
Product specification
5
9
SERIES
AT
0402 to 1206
Fig. 10 Maximum dissipation (Pmax) in percentage of rated power
as a function of the operating ambient temperature (Tamb)
FUNCTIONAL DESCRIPTION
O
OP
PE
ER
RA
AT
TI
IN
NG
G
T
TE
EM
MP
PE
ER
RA
AT
TU
UR
RE
E
R
RA
AN
NG
GE
E
Range: –55 °C to +155 °C
P
PO
OW
WE
ER
R
R
RA
AT
TI
IN
NG
G
Each type rated power at 70 °C:
AT0402=1/16 W
AT0603=1/10 W
AT0805=1/8 W
AT1206=1/4 W
RATED VOLTAGE
The DC or AT (rms) continuous working voltage
corresponding to the rated power is determined by
the following formula:
V =
)xR (P
Or max. working voltage whichever is less
Where
V=Continuous rated DC
or AC (rms) working voltage (v)
P=Rated power
R=Resistance value (Ω)
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Dec. 11, 2015 V3
Product specification
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9
SERIES
AT
0402 to 1206
TEST
TEST METHOD
PROCEDURE
REQUIREMENTS
Short Time
Overload
IEC60115-1 4.13
2.5 times of rated voltage or maximum
overload voltage, the less of the above, for 5 sec
at room temperature
± (0.05%+0.05Ω)
High
Temperature
Exposure
AEC-Q200 Test 3
MIL-STD-202 Method 108
1,000 hours at Tamb = 125 °C, unpowered
± (0.1%+0.05Ω)
1,000 hours at Tamb = 155 °C, unpowered
± (0.3%+0.05Ω)
Moisture
Resistance
AEC-Q200 Test 6
MIL-STD-202 Method 106
Each temperature / humidity cycle is defined at
8 hours (method 106F), 3 cycles / 24 hours for
10d. with 25 °C / 65 °C 95% R.H, without steps
7a & 7b, unpowered
Parts mounted on test-boards, without
condensation on parts
± (0.1%+0.05Ω)
Biased
Humidity
AEC-Q200 Test 7
MIL-STD-202 Method 103
1,000 hours; 85 °C / 85% RH
10% of operating power
Measurement at 24± 4 hours after test conclusion
± (0.1%+0.05Ω)
Operational
Life
AEC-Q200 Test 8
MIL-STD-202 Method 108
1,000 hours at 70± 5 °C, RCWV applied for 1.5
hours on, 0.5 hour off, still air required
± (0.1%+0.05Ω)
1,000 hours at 125 °C, derated voltage applied for
1.5 hours on, 0.5 hour off, still air required
± (0.3%+0.05Ω)
Resistance to
Soldering
Heat
AEC-Q200 Test 15
MIL-STD-202 Method 210
Condition B, no pre-heat of samples
Lead-free solder, 260± 5 °C, 10± 1
seconds immersion time
Procedure 2 for SMD: devices fluxed and
cleaned with isopropanol
± (0.05%+0.05Ω)
Thermal
Shock
AEC-Q200 Test 16
MIL-STD-202 Method 107
-55/+125 °C
Number of cycles is 300. Devices
mounted Maximum transfer time is 20
seconds. Dwell time is 15 minutes. Air –
Air
± (0.1%+0.05Ω)
No visible damage
Solderability
- Wetting
AEC-Q200 Test 18
J-STD-002
Electrical Test not required Magnification
50X SMD conditions:
(a) Method B, aging 4 hours at 155 °C dry heat,
dipping at 235± 3 °C for 5± 0.5 seconds.
(b) Method B, steam aging 8 hours, dipping at
215± 3 °C for 5± 0.5 seconds.
(c) Method D, steam aging 8 hours, dipping at
260± 3 °C for 7± 0.5 seconds
Well tinned
(>95% covered)
No visible damage
Table 4 Test condition, procedure and requirements
TESTS AND REQUIREMENTS
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Dec. 11, 2015 V3
Product specification
7
9
SERIES
AT
0402 to 1206
Board Flex /
Bending
AEC-Q200 Test 21
AEC-Q200-005
Chips mounted on a 90mm glass epoxy resin
PCB (FR4)
Bending for 0402: 5 mm
0603/0805: 3 mm
1206: 2mm
Holding time: minimum 60 second
± (0.1%+0.05Ω)
Temperature
Coefficient of
Resistance
(T.C.R.)
IEC 60115-1 4.8
At +25/–55 °C and
+25/+125°C Formula:
R2–R1
T.C.R=
)1t2t R1(
R1-R2
× 106(ppm/°C)
Where
t1=+25 °C or specified room temperature
t2=–55 °C or +125 °C test temperature
R1=resistance at reference temperature in
ohms R2=resistance at test temperature in
ohms
Refer to table 2
Flower of
Sulfur
ASTM-B-809-95
Sulfur (saturated vapor) 1000 hours, 90± 2°C,
unpowered
± (0.1%+0.05Ω)
ASTM-B-809-95*
* Modified
Sulfur 750 hours, 105°C, unpowered.
± (4.0%+0.05Ω)
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Dec. 11, 2015 V3
Product specification
8
9
SERIES
AT
0402 to 1206
REVISION HISTORY
REVISION
DATE
CHANGE NOTIFICATION
DESCRIPTION
Version 3
Dec. 11, 2015
-
- Modify Outline
Version 2
May 11, 2015
-
- Modify FOS test
Version 1
Jun. 18, 2014
-
- Modify FOS test
Version 0
May 07, 2014
-
- First issue of this specification
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Dec. 11, 2015 V3
Product specification
9
9
SERIES
AT
0402 to 1206
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