Key Features
ILow Profile Design
IAvailable on Tape
IVery Wide Value Range
IIdeal for Power Circuitry
IAvailable in 1, 2,3
or 5 Watts
Type SM Series
Tyco Electronics CGS introduces a
surface mount power resistor suited to
meet today's circuit design needs. Each
size offers low profile case design with
flexible tinned copper
terminations for reliable solder joints.
All styles utilize a fully welded
construction technique, unlike other
designs that rely solely on tinned
termination connections. These
features allow the SM Series to
withstand the higher temperatures
associated with reflow, vapour
phase, or infrared (IR) manufacturing
processes without degradation.
Characteristics -
Electrical
Characteristics -
Environmental
Test Condition SM (Wire) SM (Metal Film)
Temperature Coefficient -55°C ~ +200°C ± 200ppm /°C ± 100ppm /°C
of Resistance:
Short Time Overload: 5 times of rated wattage for 5 sec. ± 1% ± 0.5%
Rated Load: Rated voltage for 30 minutes ± 1% ± 0.5%
Insulation Resistance: 500V megger. 10,000 MΩ 10,000 MΩ
Load Life: 70°C on-off cycle 1,000hrs. ± 2% ± 1%
Humidity Load Life: 40°C - 95% RH on-off cycle 500hrs. ± 2% ± 1%
Power Derating
-80 -50 -40 0 20 40 80 120 160 200 240 280
100
75
50
25
0
Rated Load (%)
Ambient Temperature (°C)
Maximum Allowable Body
Temperature
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
250
200
150
100
50
0
Temperature Rise (°C)
Power (W)
SMW2W
135°C
SMW1W
100°C
SM (Wire) SM (Metal Film)
Values SMF1: ---- 10R – 2M
Values SM_2: R10 – 200R 201R – 2M
Values SM_3: R10 – 300R 301R – 2M
Values SM_5: R10 - 500R 501R - 2M
Value Grid: E24
Resistance Tolerance: 1% or 5%
Power Rating @ 25°C SMF1: ---- 1.0 Watt
Power Rating @ 25°C SM_2: 2.0 Watts
Power Rating @ 25°C SM_3: 3.0 Watts
Power Rating @ 25°C SM_5: 5.0 Watts
Derating: See Curve Below
Max Operating Voltage SMF1: ---- 300 Volts
Max Operating Voltage SM_2: 300 Volts
Max Operating Voltage SM_3: 500 Volts
Max Operating Voltage SM_5: 500 Volts
SMW3W
160°C
Literature No. 1773242
Issued: 05-09
Dimensions are shown for
reference purposes only.
Dimensions are in
millimetres unless
otherwise specified.
Specifications subject to
change.
tycoelectronics.com
passives.tycoelectronics.com
SMD Moulded Power Resistor
Type SM Series
SMW5W
220°C
Dimensions
A ±0.3 B ±0.3 C ±0.3 D ±0.3 E max F±0.3 Qty Per Reel
SMF1 3.3 4.5 1.2 2.7 6.0 1.1 2500
SM_2 4.0 6.7 1.4 3.55 7.9 1.5 2000
SM_3 5.5 10.5 1.7 5.0 12.0 2.3 1000
SM_5 7.3 13.5 1.7 6.8 17.0 2.5 1000
Recommended Pad
Dimensions
W Nom. H Nom. L Nom.
SMF1 2.2 2.2 1.8
SM_2 2.6 2.9 2.8
SM_3 4.0 3.4 6.0
SM_5 4.5 3.4 11.0
SMW 2 1R0 F T
Common Part
1 – 1 Watt
2 – 2 Watts
3 – 3 Watts
5 - 5 Watts
Case Size
0.1 ohm
(100 milli ohms)
R10
1 ohm
(1000 milli ohms)
1R0
100 ohm
(100 ohms)
100R
1K ohm
(1000 ohms)
1K0
100K ohm
(100,000 ohms)
100K
Resistance Value
Tolerance
SMW – Wirewound
SMF – Metal Film
J – ±5%
F – ±1%
Pack Style
T – Taped
How to Order
Literature No. 1773242
Issued: 05-09
Dimensions are shown for
reference purposes only.
Dimensions are in
millimetres unless
otherwise specified.
Specifications subject to
change.
tycoelectronics.com
passives.tycoelectronics.com
SMD Moulded Power Resistor
Type SM Series
