Professional Thin Film MELF Resistors Feature Extended Resistance Range Down to 0.22 Ω at 1 % Tolerance for Precise Current Measurement in Lighting, Industrial, and Automotive Applications
The News:
Vishay Intertechnology extends its AEC-Q200-qualified Professional Thin Film MELF resistors to tighter tolerance in the low ohmic range below 1 Ω for the 0204 and 0207 case sizes. Along with a low temperature coefficient, the improved Vishay Beyschlag MMA 0204 and MMB 0207 allow for more precise current measurement in LED lighting, industrial, automotive, and renewable energy applications with high stability and reliability requirements than previous-generation devices.
• Built on an advanced metal film technology
• Feature a robust design
• Intrinsic sulfur resistance
• Backed by Vishay’s more than 30 years of experience developing thin film MELF resistors
• Suitable for processing on automatic SMD assembly systems
Product Benefits:
• Extended resistance range down to 0.22 Ω with tolerance of ± 1 % in 0204 and 0207 case sizes
• Low TCR of ± 50 ppm/K
• AEC-Q200-qualified
• Rated power dissipation to 1 W at +70 °C
• Excellent overall stability
• Lead (Pb)-free
• RoHS-compliant, halogen-free, and Vishay Green
The Key Specifications:
| Part # | MMU 0102 | MMA 0204 | MMB 0207 |
| Case size | 0102 | 0204 | 0207 |
| Resistance range (Ω) | 0.22 to 2.21 M | 0.22 to 10 M | 0.1 to 15 M |
| Tolerance (%) | ± 5; ± 2; ± 1; ± 0.5 | ± 5; ± 1; ± 0.5 | ± 5; ± 2; ± 1; ± 0.5 |
| TCR (ppm/K) | ± 50; ± 25 | ± 50; ± 25 | ± 100; ± 50; ± 25 |
| Rated dissipation P70 (W) | 0.3 | 0.4 | 1.0 |
| Operating voltage (V) | 150 | 200 | 350 |
| Operating temp. range (°C) | -55 to +155 | -55 to +155 | -55 to +155 |
Market Applications:
• DC/DC conversion, pulse-width modulation, and precise current measurement in LED drivers, solar inverters, industrial electronics, and battery management systems for electric and hybrid vehicles, in addition to telecom and medical equipment
Availability:
Samples and production quantities of the MMU 0102, MMA 0204, and MMB 0207 are available now, with lead times of six to eight weeks for larger orders.
To access the product datasheet on the Vishay Website, go to
http://www.vishay.com/ppg?28713 (MMU 0102, MMA 0204, MMB 0207 – Professional)
