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SMF2680RJT Datasheet, PDF (1/3 Pages) Tyco Electronics – Type SM Series
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
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
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:
SM (Wire)
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
SM (Metal Film)
± 100ppm /°C
± 1%
± 1%
10,000 MΩ
± 2%
± 2%
± 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