Precision thin film MELF resistors reduce component counts saving space and lowering costs

Vishay Intertechnology, Inc. has released an enhanced resistance range for precision versions of its AEC-Q200 qualified thin film MELF resistors in the 0102, 0204, and 0207 case sizes. Designed to satisfy the needs of applications with high stability and reliability requirements, the Vishay Beyschlag MMU 0102, MMA 0204, and MMB 0207 are now obtainable with low TCR down to ±15ppm/K, tight tolerances down to ±0.1%, and high resistance values of up to 10MOhm.

The devices provide significantly higher resistance compared to previous thin film MELF resistor offerings. For example, for a device in the 0204 case size with a TCR of ±25ppm/K and a tolerance of 0.1%, resistance had previously been limited to 511kOhm. The precision MMA 0204, however, now offers ten times higher resistance of 5.11MOhm at the same TCR and tolerance and 1MOhm at an even lower TCR of ±15ppm/K. With its high resistance, a single MMA 0204 or MMB 0207 resistor can replace multiple lower-value devices used in series, saving spaces and simplifying designs and lowering overall costs.

Built on an advanced metal film technology, the precision resistors provide proven reliability for current sensing in power supplies for automotive ADAS, LIDAR, connectivity, camera systems, and telecom, industrial, and medical equipment. The devices provide a robust design, intrinsic sulphur resistance, and outstanding overall stability that exceeds stability class 0.05 for these applications. Suitable for processing on automatic SMD assembly systems, the Pb-free resistors are RoHS-compliant, halogen-free, and Vishay Green.