Approval Sheet

Page 2 of 12

ASC_WMxxP&Q_Q

Aug 2018

FEATURE

1.

SMD enabled structure thin film resistor

2.

High reliability and stability of ±0.3% and below per customer request

3.

High precision of TCR: 15 & 10 ppm/

°C and below per customer request

4.

Best in class pulse load capability

5.

High power rating

6.

RoHS compliant and lead free

7.

AEC-Q200 Compliant

APPLICATION

•

Medical equipment

•

Measuring instrument

•

Communication device

•

Power / Meter Converter

DESCRIPTION

A uniform alloy film is deposited on a high grade ceramic body (Al2O3) and achieved the desired temperature coefficient by

annealing. Nickel plated termination caps are firmly attached on the ceramic body. It is achieved the target value by

smoothly cutting a helical groove in the resistive layer without damaging the ceramic body. The resistive film is covered by

epoxy molding compound designed for electrical, mechanical and climatic protection. For environmental soldering issue,

Nickel plated terminations receive a final pure tin on it. Four color code rings designate the resistance value in accordance

with IEC 60062.

Fig 1. Construction of MELF