TE Connectivity (TE) 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
onnections. 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
SM (Wire)
Values SM_2:
Values SM_3:
Values SM_5:
Value Grid:
Resistance Tolerance:
Power Rating @ 25°C SM_2:
Power Rating @ 25°C SM_3:
Power Rating @ 25°C SM_5:
Derating:
Max Operating Voltage SM_2:
Max Operating Voltage SM_3:
Max Operating Voltage SM_5:
R10 – 200R
R10 – 300R
R10 – 500R
E24
1% or 5%
2.0 Watts
3.0 Watts
5.0 Watts
See Curve Below
300 Volts
500 Volts
500 Volts
SM (Metal Film)
201R – 2M
301R – 2M
501R – 2M
Characteristics - Environmental
Test
Temperature Coefficient
of Resistance:
Short Time Overload:
Rated Load:
Insulation Resistance:
Load Life:
Humidity Load Life:
Voltage Withstand:
Solderability:
Resistance to
Soldering Heat:
Condition
-55°C – +200°C
5 times of rated wattage for 5 sec.
Rated voltage for 30 minutes
500VDC
70°C 1.5 hrs on 0.5 hrs off for 1000 hrs
40°C ±2°C @ 90-95% RH 500 hrs
1.5 hrs on 0.5 hrs off
500VAC for 60 seconds
235°C ±5°C for 2 seconds
270°C ±5°C for 10 ±1seconds
SM (Wire)
± 200ppm /°C
± 1%
± 1%
10,000 MΩ
± 2%
± 2%
SM (Metal Film)
± 100ppm /°C
± 0.5%
± 0.5%
10,000 MΩ
± 1%
± 1%
No Physical damage
95% coverage
Resistance value change
within ± 1%
1773242 CIS WR 04/2012
Dimensions are in millimeters
and inches unless otherwise
specified. Values in brackets
are standard equivalents.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
For email, phone or live chat, go to:
te.com/help
SMD Moulded Power Resistor
Type SM Series
Power Derating
100
Rated Load (%)
75
50
25
0
-80 -50 -40
0 20 40
80
120
160
200
240
280
Ambient Temperature (°C)
Maximum Allowable Body Temperature
250
Temperature Rise (°C)
200
150
100
50
0
0
0.5
1.0
1.5
2.0
2.5
Power (W)
3.0
3.5
4.0
SMW2W
135°C
SMW5W
220°C
SMW3W
160°C
4.5
5.0
Dimensions
A ±0.3
SM_2
SM_3
SM_5
4.0
5.5
7.3
B ±0.3
6.7
10.5
13.5
C ±0.3
1.4
1.7
1.7
D ±0.3
3.55
5.0
6.8
E max
7.9
12.0
17.0
F±0.3
1.5
2.3
2.5
Qty Per Reel
2000
1000
1000
1773242 CIS WR 04/2012
Dimensions are in millimeters
and inches unless otherwise
specified. Values in brackets
are standard equivalents.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
For email, phone or live chat, go to:
te.com/help
SMD Moulded Power Resistor
Type SM Series
Recommended Pad Dimensions
W Nom.
SM_2
SM_3
SM_5
2.6
4.0
4.5
H Nom.
2.9
3.4
3.4
L Nom.
2.8
6.0
11.0
How to Order
SMW
Common Part
SMW – Wirewound
3 – 3 Watts
SMF – Metal Film
5 - 5 Watts
2
Case Size
2 – 2 Watts
1R0
Resistance Value
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
F
Tolerance
J – ±5%
T
Pack Style
T – Taped
F – ±1%
TE Connectivity, TE connectivity (logo) and TE (logo) are trademarks.
Other logos, product and Company names mentioned herein may be trademarks of their respective owners.
While TE has made every reasonable effort to ensure the accuracy of the information in this datasheet, TE does not guarantee that it is error-free, nor does TE make any other
representation, warranty or guarantee that the information is accurate, correct, reliable or current. TE reserves the right to make any adjustments to the information contained herein
at any time without notice. TE expressly disclaims all implied warranties regarding the information contained herein, including, but not limited to, any implied warranties of merchantabili-
ty or fitness for a particular purpose. The dimensions in this datasheet are for reference purposes only and are subject to change without notice. Specifications are subject to change
without notice. Consult TE for the latest dimensions and design specifications.
