Resistors
Anti Sulphur Chip Resistors
ASC Series
Special construction resists sulphide growth
Withstands sulphur bearing fume environment
Tested to ASTM-B809 (“Flowers-of-Sulphur”)
Suitable for industrial, automotive and roadside uses
RoHS compliant matt tin finish terminations
AEC-Q200 qualified
All parts are Pb-free and comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3)
Electrical Data
0402
Power rating @ 70°C watts
Resistance range ohms
Current Rating (zero ohm jumper) amps
Limiting element voltage volts
TCR ppm/°C
Resistance tolerance
Standard values
Ambient temperature range °C
%
1
50
1
2
150
1
E24, E96
-55 to +155
0.063
0603
0.1
0805
0.125
1206
0.25
1R0 - 10M
2
2.5
200
3.5
4
250
1210
0.33
2010
0.75
2512
1
<10R: 200 10R to 1M0: 100 >1M0: 200
Physical Data
Dimensions (mm) and weight (mg)
L
0402
0603
0805
1206
1210
2010
2512
1.0 ±0.05
1.6 ±0.1
2.0 ±0.1
3.1 ±0.1
3.2 ±0.2
5.0 ±0.2
6.35 ±0.2
W
0.5 ±0.05
0.8 ±0.1
1.25 ±0.1
1.55 ±0.1
2.6 ±0.15
2.5 ±0.15
3.2 ±0.15
0.55 ±0.1
0.6 ±0.25
T
0.35 ±0.05
0.45 ±0.1
0.5 ±0.1
C
0.2 ±0.1
0.3 ±0.2
0.35 ±0.2
0.5 ±0.25
0.5 ±0.2
A
0.2 ±0.1
0.3 ±0.2
0.4 ±0.2
Wt. nom.
0.62
2.04
4.37
8.95
16.0
24.2
39.4
Wrap-around terminations
(3 faces)
A
L
A
W
T
Construction
Conductors, resistive element, glass inner protection and epoxy outer protection are applied to a 96% alumina substrate. The chips are
supplied with wrap-around terminations suitable for soldering. The terminations have an electroplated nickel barrier and 100% matt tin
finish.
Marking
Sizes larger than 0603 are individually marked with 4 digits. The first three digits are the significant figures and the fourth defines the
number of added zeros.
Size 0603, E24 values are marked with 3 digits. The first two digits are the significant figures and the third defines the number of added
zeros.
Size 0603, E96 values are marked with a standard 3 digit EIA96 code.
Size 0402 has no marking.
The body protection and marking are resistant to all normal cleaning solvents suitable for printed circuits.
General Note
TT Electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
BI Technologies IRC Welwyn
www.ttelectronics.com/resistors
© TT Electronics plc
06.18
Anti Sulphur Chip Resistors
ASC Series
Performance Data
Maximum
Load at rated power: 1000 hours cyclic load @ 70°C ΔR%
Short term overload: Lesser of 6.25 x rated power or 2 x LEV for s ΔR%
Hydrogen Sulphide: 1000 hours 3-5ppm H2S, 50 ±2°C, 92 ±1% RH, no load ΔR%
Derating from rated power at 70°C
Dry heat: 1000 hours at 155°C ΔR%
Damp heat 1000 hours 40°C 90-95% RH ΔR%
Temperature rapid change -55 to 155°C, 5 cycles ΔR%
Resistance to solder heat: 260±5°C for 10s ΔR%
Solderability: 245±5°C for 3s
Solder leaching: 260±5°C for 30s
Board Flex: once for 5s, 2010 & 2512: 2mm, smaller sizes: 3mm ΔR%
Insulation resistance @ 2 x LEV for 60s ohms
2% + 0.1Ω
1% + 0.05Ω
0.5% and no visual defects
Linear to zero at 155°C
1% + 0.05Ω
2% + 0.1Ω
0.5% + 0.05Ω
0.5% + 0.05Ω
≥95% coverage
Leached area ≤10% total, ≤5% individual
1% +0.05Ω
>10G
Packaging
ASC resistors are supplied taped and reeled on a 7 or 10” reel as per IEC 286-3. The tape is 12mm wide embossed plastic tape for 2010
and 2512 sizes and 8mm wide paper tape for the smaller sizes.
Ordering Procedure
Example: ASC1210 at 22 ohms and 1% tolerance on a reel of 5000 pieces -
A S C
Type
Size
Value (use IEC62 code)
Tolerance (use IEC62 code)
F
Packing
T10
T5
T4
Tape
0402
0603, 0805, 1206, 1210
2010, 2512
10,000/reel (7”)
5000/reel (10”)
4000/reel (7”)
Standard
1%
1 2 1 0 - 2 2 R
F
T5
Note: For zero ohm jumper, substitute value and tolerance with the code R000
General Note
TT Electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
BI Technologies IRC Welwyn
www.ttelectronics.com/resistors
© TT Electronics plc
06.18
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
TT Electronics
:
ASC1206EW-1K2FT5 ASC0402-1M0FT10 ASC0603-3R3FT5 ASC2512-6R8FT4 ASC0603-680RFT5 ASC0402-
100KFT10 ASC0603-330RFT5 ASC0402-10KFT10 ASC0603-15KFT5 ASC0805-10KFT5 ASC0402-1M5FT10
ASC0603-1M0FT5 ASC0603-470RFT5 ASC0603-1K0FT5 ASC1206-100RFT5 ASC1206-10KFT5 ASC0402-
1K0FT10 ASC1206-4R7FT5 ASC2512-1M0FT4 ASC0603-22RFT5 ASC0402-22RFT10 ASC0603-220RFT5
ASC0603-150KFT5 ASC0603-100KFT5 ASC0805-47KFT5 ASC0402-15RFT10 ASC0603-2R2FT5 ASC0603-
220KFT5 ASC0402-100RFT10 ASC0603-150RFT5 ASC0402-330RFT10 ASC0603-33KFT5 ASC2512-33RFT4
ASC1206-2R2FT5 ASC0402-33RFT10 ASC0603-3K3FT5 ASC0805-4K7FT5 ASC0603-10RFT5 ASC0603-4K7FT5
ASC0805-680RFT5 ASC0603-1K5FT5 ASC0603-100RFT5 ASC0805-1K0FT5 ASC0805-15KFT5 ASC0805-6K8FT5
ASC0603-2K2FT5 ASC0805-100RFT5 ASC0805-1M5FT5 ASC0402-4K7FT10 ASC1206-2K2FT5 ASC0603-
47KFT5 ASC0805-100KFT5 ASC1206-10RFT5 ASC1206-1K0FT5 ASC0603-6K8FT5 ASC0603-10KFT5 ASC0402-
1K5FT10 ASC0805-1M0FT5 ASC2010-330KFT4 ASC0402-3K3FT10 ASC0402-10RFT10 ASC0805-1K5FT5
ASC0603-1R0FT5 ASC1206-1M0FT5 ASC0402-47KFT10 ASC0402-22KFT10 ASC1206-220KFT5 ASC0805-
68KFT5 ASC2010-1R5FT4 ASC1206-6K8FT5 ASC2512-1R0FT4 ASC1206-220RFT5 ASC0805-47RFT5 ASC0805-
470KFT5 ASC2512-2K2FT4 ASC0603-680KFT5 ASC2010-1K0FT4 ASC1206-330RFT5 ASC1206-100KFT5
ASC0603-33RFT5 ASC0402-330KFT10 ASC1206-150RFT5 ASC2010-1K5FT4 ASC0805-330RFT5 ASC2512-
1K5FT4 ASC0402-470RFT10 ASC0402-680KFT10 ASC0805-2K2FT5 ASC2010-68RFT4 ASC0805-220RFT5
ASC0603-330KFT5 ASC0805-22KFT5 ASC1206-1R0FT5 ASC0603-47RFT5 ASC0402-220KFT10 ASC0805-
220KFT5 ASC1206-15KFT5 ASC2010-470RFT4 ASC0402-220RFT10 ASC0805-33KFT5
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