Devices feature extended resistance to lower ohmic values

Beyschlag

 

MALVERN,
Pa. — Oct. 5, 2016 —
Vishay
Intertechnology, Inc. (NYSE: VSH) announced that it has extended 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. In addition to providing 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, the devices released today offer an extended
resistance range down to 0.22 Ω with tolerance of ±1%, low TCR of ±50 ppm/K,
and rated power dissipation to 1 W at 70°C. The professional thin-film MELF
resistors, available in 0102, 0204, and 0207 case sizes, feature a robust
design, intrinsic sulfur resistance, and excellent overall stability that
exceeds class 0.25.

 

The MMU
0102, MMA 0204, and MMB 0207 provide proven reliability for current sensing in
dc/dc conversion and pulse-width modulation in LED drivers, solar inverters,
industrial electronics, and battery management systems for electric and hybrid
vehicles, in addition to telecom and medical equipment. The devices are backed
by Vishay’s more than 30 years of experience developing thin film MELF
resistors.

 

Suitable for
processing on automatic SMD assembly systems, the lead (Pb)-free devices are
RoHS-compliant, halogen-free, and Vishay
Green
.

 

Device
Specification Table:

 

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)
−5 to +155

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. Pricing for U.S. delivery starts at only $0.10 per piece.