MMU 0102, MMA 0204, MMB 0207 - Professional
www.vishay.com
Vishay Beyschlag
Professional Thin Film MELF Resistors
FEATURES
 Approved according to EN 140401-803
 AEC-Q200 qualified
 Advanced metal film technology
 Excellent overall stability: exceeds class 0.25
 Best in class pulse load capability
 Intrinsic sulfur resistance
 Material categorization: 
for definitions of compliance please see 
www.vishay.com/doc?99912
MMU 0102, MMA 0204, and MMB 0207 professional thin 
film MELF resistors are the perfect choice for most fields of 
APPLICATIONS
modern professional electronics where reliability and 
stability is of major concern. The typical applications in the 
 Automotive
fields of automotive, telecommunication and medical 
 Telecommunication
equipment reflect the outstanding level of proven reliability.
 Industrial
 Medical equipment
TECHNICAL SPECIFICATIONS
DESCRIPTION MMU 0102 MMA 0204 MMB 0207
DIN size 0102 0204 0207
Metric size code RC2211M RC3715M RC6123M
Resistance range 0.22  to 2.21 M ; 0 0.22  to 10 M ; 0 0.1  to 15 M ; 0 
Resistance tolerance  5 %;  2 %;  1 %;  0.5 % 5 %;  1 %;  0.5 %  5 %;  2 %;  1 %;  0.5 %
  100 ppm/K;  50 ppm/K;
Temperature coefficient  50 ppm/K;  25 ppm/K
 25 ppm/K
 (1)
Rated dissipation, P 0.3 W 0.4 W 1.0 W
70
Operating voltage, U AC /DC 150 V 200 V 350 V
max. RMS
(1)
Permissible film temperature,  155 C
F max.
(1)
Operating temperature range -55 C to 155 C
Permissible voltage against ambient (insulation):
1 min, U 200 V 300 V 500 V
ins
9
Failure rate: FIT 0.1 x 10 /h
observed
Note
(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. 
 
Revision: 06-Apr-18 Document Number: 28713
1
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  
MMU 0102, MMA 0204, MMB 0207 - Professional
www.vishay.com
Vishay Beyschlag
MAXIMUM RESISTANCE CHANGE AT RATED DISSIPATION
OPERATION MODE STANDARD POWER
MMU 0102 0.2 W 0.3 W
Rated dissipation, P MMA 0204 0.25 W 0.4 W
70
MMB 0207 0.4 W 1.0 W
Operating temperature range -55 C to 125 C -55 C to 155 C
Permissible film temperature,  max. 125 C 155 C
F
MMU 0102 0.22  to 2.21 M  0.22  to 2.21 M 
MMA 0204 0.22  to 10 M  0.22  to 10 M 
MMB 0207 0.1  to 15 M  0.1  to 15 M 
Max. resistance change at P for 
70
resistance range, |R/R| after:
1000 h 0.15 %  0.25 %
8000 h 0.3 %  0.5 %
225 000 h 1.0 % -
Note
 The presented operation modes do not refer to different types of resistors, but actually show examples of different loads, that lead to 
different film temperatures and different achievable load-life stability (drift) of the resistance value. A suitable low thermal resistance of the 
circuit board assembly must be safeguarded in order to maintain the film temperature of the resistors within the specified limits. Please 
consider the application note Thermal Management in Surface-Mounted Resistor Applications (www.vishay.com/doc?28844) for 
information on the general nature of thermal resistance
TEMPERATURE COEFFICIENT AND RESISTANCE RANGE
TYPE/SIZE TCR TOLERANCE RESISTANCE E-SERIES
 5 % 0.22  to 0.91 
E24
 2 % 1  to 9.1 
 50 ppm/K
 1 % 10  to 2.21 M  E24; E96
MMU 0102  0.5 % 10  to 221 k  E24; E192
 1 % 10  to 221 k  E24; E96
 25 ppm/K
 0.5 % 10  to 221 k  E24; E192
Jumper; I = 2 A  10 m 0  -
max.
 5 % 0.22  to 0.91 
E24
(1)
 1 % 0.22  to 0.91  
 50 ppm/K
 1 % 1  to 10 M  E24; E96
MMA 0204  0.5 % 10  to 2.21 M  E24; E192
 1 % 10  to 511 k  E24; E96
 25 ppm/K
 0.5 % 10  to 511 k  E24; E192
Jumper; I = 3 A  10 m 0  -
max.
 5 % 0.1  to 0.2 
 100 ppm/K
(1)
 2 % 0.1  to 0.2  
 5 % 0.22  to 0.91  E24
 2 % 0.22  to 0.91 
MMB 0207  50 ppm/K
(1)
 1 % 0.22  to 0.91  
 1 % 1  to 15 M  E24; E96
 25 ppm/K  0.5 % 10  to 1 M  E24; E192
Jumper; I = 5 A  10 m 0  -
max.
Note
(1)
Approval according to EN 140401-803 not available
 
Revision: 06-Apr-18 Document Number: 28713
2
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