Vishay MMU 0102, MMA 0204, MMB 0207 - Precision Owner's Manual, User Guide
Summary
Discover high-precision thin film MELF resistors engineered with advanced technology and superior stability. This comprehensive manual serves as a technical guide detailing product specifications, compatible DIN sizes, and full performance data across various ranges (10 Ω to 1 MΩ). It is essential reading for electrical engineers designing critical test & measuring equipment, industrial controls, and medical electronics requiring maximum reliability and RoHS compliance.
Page 1 Text Content
MMU 0102, MMA 0204, MMB 0207 - Precision Vishay Beyschlag
Precision MELF Resistors
FEATURES Approved according to EN 140401-803 Advanced thin film technology Superior stability: Class 0.05 Wide precision range: 10 Ω to 1 MΩ Force fitted steel caps, tin plated on nickel barrier Pure Sn termination on Ni barrier layer Compatible with lead (Pb)-free and lead containing soldering processes Lead (Pb)-free and Ro HS compliant
APPLICATIONS Test and measuring equipment
MMU 0102, MMA 0204 and MMB 0207 precision thin film
Industrial and medical electronics
melf resistors combine the proven reliability of the professional products with an advanced level of precision
and stability. Therefore they are perfectly suited for METRIC SIZE applications in the fields of test and measuring equipment DIN: CECC: RC 2211M RC 3715M RC 6123M
along with industrial and medical electronics.
TECHNICAL SPECIFICATIONS
DESCRIPTION MMU 0102 MMA 0204 MMB 0207
Metric CECC size RC 2211 M RC 3715 M RC 6123 M Resistance range 22 Ω to 332 kΩ 10 Ω to 511 kΩ 15 Ω to MΩ Resistance tolerance ± 0.5 %; ± 0.25 %; ± 0.1 % ± 0.25 %; ± 0.1 % Temperature coefficient ± 25 ppm/K; ± 15 ppm/K Operation mode precision standard precision standard precision standard Climatic category
(LCT/UCT/days)
Rated dissipation, P70 0.06 0.2 0.07 0.25 W 0.11 0.4 Operating voltage, Umax AC/DC 150 V 200 V 300 V Film temperature °C °C °C °C °C °C Max. resistance change at P70 for resistance range, 22 Ω to 332 kΩ to 511 kΩ 15 Ω to 1 MΩ |ΔR/R| max., after:
Permissible voltage against ambient (insulation):
1 minute, Uins continuous
Failure rate ≤ 2.0 × 10-9/h ≤ 0.7 × 10-9/h ≤ 0.7 × 10-9/h
Note: 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. 1) The power dissipation on the resistor generates a temperature rise against the local ambient, depending on the heatflow support of the printed-circuit board (thermal resistance). The rated dissipation applies only if the permitted film temperature is not exceeded.
www.vishay.com For technical questions contact: [email protected] Document Number: 28714
Revision: 18-Jul-06
Page Summary Contents For Vishay MMU 0102, MMA 0204, MMB 0207 - Precision Owner's Manual, User Guide
Manual Details
| Brand | Vishay |
|---|---|
| Pages | 11 |
| File Size | 156.73 KB |
| Published | May 28, 2026 |
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Frequently Asked Questions
What types of soldering processes can these resistors handle?
They are compatible with both lead (Pb)-free and lead containing soldering processes.
How is the resistance value determined from the 12NC code?
The first three digits indicate the main resistance value, while a last digit specifies the resistance decade.
What should I watch out for regarding component lifespan?
These do not have a limited lifetime if operated within permissible limits; however, resistance drift can affect performance over time.
Are these products approved for use in critical applications?
The resistors are generally used in test and measuring equipment, but they must not be used in medical or life-sustaining applications unless expressly indicated.