MMU 0102, MMA 0204, MMB 0207 - Professional

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Vishay Beyschlag

Revision: 20-Jan-2026

1

Document Number: 28713

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Professional Thin Film MELF Resistors

LINKS TO ADDITIONAL RESOURCES

MMU 0102, MMA 0204, and MMB 0207 professional thin

film MELF resistors are the perfect choice for most fields of

modern professional electronics where reliability and

stability is of major concern. The typical applications in the

fields of automotive, telecommunication and medical

equipment reflect the outstanding level of proven reliability.

FEATURES

• IECQ-CECC

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 up to

1500 W for 1 μs

• Intrinsic sulfur resistance, PFAS free

• Material categorization: for definitions of compliance

please see www.vishay.com/doc?99912

APPLICATIONS

• Automotive

• Telecommunication

• Industrial

• Medical equipment

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.

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TECHNICAL SPECIFICATIONS

DESCRIPTION

MMU 0102

MMA 0204

MMB 0207

DIN size

0102

0204

0207

Metric size code

RC2211M

RC3715M

RC6123M

Resistance range

0.22

Ω to 2.21 MΩ; 0 Ω

0.22

Ω to 10 MΩ; 0 Ω

0.1

Ω to 15 MΩ; 0 Ω

Resistance tolerance

± 5 %; ± 2 %; ± 1 %; ± 0.5 %

± 5 %; ± 1 %; ± 0.5 %

± 5 %; ± 2 %; ± 1 %; ± 0.5 %

Temperature coefficient

± 50 ppm/K; ± 25 ppm/K

± 100 ppm/K; ± 50 ppm/K;

± 25 ppm/K

Rated dissipation,

P70 (1)

0.3 W

0.4 W

1.0 W

Operating voltage,

Umax. ACRMS/DC

150 V

200 V

350 V

Permissible film temperature,

ϑF max. (1)

155 °C

Operating temperature range (1)

-55 °C to 155 °C

Permissible voltage against ambient (insulation):

1 min,

Uins

200 V

300 V

500 V

Internal thermal resistance (1)

-

46 K/W

26 K/W

Failure rate: FITobserved

≤ 0.05 x 10−9/h