SMM0204
www.vishay.com
Vishay Draloric
Revision: 09-Dec-15
1
Document Number: 20004
For technical questions, contact: melf@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Thin Film Mini-MELF Resistors
SMM 0204 thin film MELF resistors are the perfect choice
for most fields of modern electronics where reliability and
stability are of major concern. The typical applications in the
fields of automotive, industrial and medical equipment
reflect the outstanding level of proven reliability.
FEATURES
• Advanced metal film technology
• AEC-Q200 qualified
• Approval acc. EN 140401-803 available on
request
• Excellent stability in different environmental
conditions
• Best in class pulse load capability
• Intrinsic sulfur resistance
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
APPLICATIONS
• Automotive
• Telecommunication
• Industrial
• Medical equipment
Notes
• The IECQ-CECC approved product versions SMM0204 EN803 E0 and OMM0204 EN803 E0 respectively feature a quality factor π
Q
= 3 for
the purpose of system MTBF calculations, compared with π
Q
= 10 for the standard versions.
(1)
Please refer to APPLICATION INFORMATION below.
APPLICATION INFORMATION
When the resistor dissipates power, a temperature rise above the ambient temperature occurs, dependent on the thermal
resistance of the assembled resistor together with the printed circuit board. The rated dissipation applies only if the permitted
film temperature is not exceeded.
These resistors do not feature a limited lifetime when operated within the permissible limits. However, resistance value drift
increasing over operating time may result in exceeding a limit acceptable to the specific application, thereby establishing a
functional lifetime
TECHNICAL SPECIFICATIONS
DESCRIPTION SMM0204
DIN size 0204
Metric size code RC 3715M
Resistance range 0.22 Ω to 10 MΩ
Resistance tolerance ± 5 %; ± 1 %; ± 0.5 %; ± 0.25 %; ± 0.1 %
Temperature coefficient ± 100 ppm/K; ± 50 ppm/K; ± 25 ppm/K; ± 15 ppm/K
Rated dissipation P
70
(1)
0.4 W
Operating voltage, U
max.
AC
RMS
/DC 200 V
Permissible film temperature,
ϑ
F max.
(1)
155 °C
Operating temperature range
(1)
-55 °C to 155 °C
Permissible voltage against ambient (insulation):
1 min; U
ins
300 V
Failure rate: FIT
observed
≤ 0.1 x 10
-9
/h
Zero-Ohm-Resistor: OMM0204 R
max.
= 10 mΩ; I
max.
= 3 A
