SMD Moulded Power Resistor
Type SM Series
Key Features
Low Profile Design
Available on Tape
Very Wide Value Range
Ideal for Power Circuitry
Available in 2,3 or 5 Watts
Flameproof Coating UL94V0
TEConnectivity(TE)introducesasurfacemountpowerresistorsuitedtomeettoday's
circuitdesignneeds.Eachsizeofferslowprofilecasedesignwithflexibletinnedcopper
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
associatedwithreflow,vapourphase,orinfrared(IR)manufacturingprocesseswithout
degradation.
Characteristics - Electrical
SM (Wire) SM (Metal Film)
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 @ 25C SM_2: 2.0 Watts
Power Rating @ 25C SM_3: 3.0 Watts
Power Rating @ 25C SM_5: 5.0 Watts
Derating: See Curve Below
Max Operating Voltage SM_2: 300 Volts
Max Operating Voltage SM_3: 500 Volts
Max Operating Voltage SM_5: 500 Volts
Characteristics - Environmental
Test Condition SM (Wire) SM (Metal Film)
Temperature Coefficient -55C +200C 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: 500VDC 10,000 M 10,000 M
Load Life: 70C 1.5 hrs on 0.5 hrs off for 1000 hrs 2% 1%
Humidity Load Life: 40C 2C @ 90-95% RH 500 hrs 2% 1%
1.5 hrs on 0.5 hrs off
Voltage Withstand: 500VAC for 60 seconds No Physical damage
Solderability: 235C 5C for 2 seconds 95% coverage
Resistance to 270C 5C for 10 1seconds Resistance value change
Soldering Heat: within 1%
1773242 CIS WR 04/2012 Dimensions are in millimeters Dimensions are shown for For email, phone or live chat, go to: te.com/help
and inches unless otherwise reference purposes only.
specified. Values in brackets Specifications subject
are standard equivalents. to change.SMD Moulded Power Resistor
Type SM Series
Power Derating
100
75
50
25
0
-80 -50 -40 0 20 40 80 120 160 200 240 280
Ambient Temperature (C)
Maximum Allowable Body Temperature
250
SMW5W
220C
200
SMW3W
160C
SMW2W
150
135C
100
50
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Power (W)
Dimensions
A 0.3 B 0.3 C 0.3 D 0.3 E max F0.3 Qty Per Reel
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
1773242 CIS WR 04/2012 Dimensions are in millimeters Dimensions are shown for For email, phone or live chat, go to: te.com/help
and inches unless otherwise reference purposes only.
specified. Values in brackets Specifications subject
are standard equivalents. to change.
Temperature Rise (C)
Rated Load (%)