SCW-SC3LF-2R70 Datasheet, PDF (2/3 Pages) TT Electronics. – High Power Chip Resistors

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Welwyn Components
Construction
Resistive thick film material, overglaze and organic protection
are screen printed on a 96% alumina substrate. The
components are laser trimmed to achieve the required
resistance tolerance.
Terminations
The wrap-around tceorpmpienrateiornmsinhaatvioenasnhealveectaronpelaletcetdronpiclakteeld
bnaicrkrieelrbaanrdriemr atntde tin-filenaidshs.oTldheisr ecnosautirnegs, this ensures
excellent ‘leach’ resistance properties and solderability.
Chips can withstand immersion in solder at 250˚C for 90
seconds and are suitable for reflow or wave soldering
mounting applications.
Marking
The body protection and marking are resistant to all normal
industrial cleaning solvents suitable for printed circuits.
Chips are packed and mounted with marking side up.
The SC3 Chips are mounted with the actual resistor element
mounted face down on its termination pads.
Performance Data
AEC-Q200 Table 7
ref
Test
3
High Temp. Exposure
4
Temperature Cycling
6
Moisture Resistance
7
Biased Humidity
8
Operational Life (Cyclic Load)
14
Vibration
15
Resistance to Soldering Heat
16
Thermal Shock
18
Solderability
21
Board Flex
22
Terminal Strength
Short Term Overload
Low Temperature Storage
Low Temperature Operation
Shelf Life Test
Leach Resistance
Method
MIL-STD-202 Method 108
JESD22 Method JA-104
MIL-STD-202 Method 106
MIL-STD-202 Method 103
MIL-STD-202 Method 108
MIL-STD-202 Method 204
MIL-STD-202 Method 210
MIL-STD-202 Method 107
J-STD-002
AEC-Q200-005
AEC-Q200-006
6.25 x Pr for 2s
-65°C for 100 hours
-65°C for 1 hour then Pr for 45 minutes
Room temp for 12 months
Solder dip at 250°C
Max.+0.01Ω
Typ.
R%
0.5
0.2
R%
0.25
0.1
R%
0.5
0.2
R%
0.5
0.1
R%
1.0
0.5
R%
0.25
0.05
R%
0.25
0.05
R%
0.5
0.2
>95% coverage
R%
0.25
0.05
R%
0.25
0.05
R%
0.5
R%
0.5
R%
0.5
R%
0.1
90s minimum
Temperature Rise vs Pad Area Pulse Power Rating
1000
100
100
10
10
100mm²
300mm²
Termination Pad Area (each end)
1 watt
2 watt
3 watt
1000mm²
1
0.1
1.0
Time (sec)
10.0
General Note
TT Electronics reserves the right to make changes in product specification without notice or liability.
BI Technologies IRC Welwyn
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
© Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK
www.ttelectronicsresistors.com
T_©ele_Tp_Tho_En_le:_c+_tr4_o4_n(_i0_cs) 1_p6_lc70 822181 · Facsimile: [phone] · Email: [e-mail] · Website: www.welwyn-tt.com
Issue A · 0043.1020
04.16