DATA SHEET - TME Electronic Components
DATA SHEET - TME Electronic Components
DATA SHEET - TME Electronic Components
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Mar 15, 2010 V.3<br />
Chip Resistor Surface Mount<br />
TESTS AND REQUIREMENTS<br />
Table 4 Test condition, procedure and requirements<br />
RC SERIES 1218<br />
Product specification<br />
TEST TEST METHOD PROCEDURE REQUIREMENTS<br />
Temperature<br />
Coefficient of<br />
Resistance<br />
(T.C.R.)<br />
IEC 60115-1 4.8<br />
Life/Endurance IEC 60115-1 4.25.1<br />
High<br />
Temperature<br />
Exposure/<br />
Endurance at<br />
Upper Category<br />
Temperature<br />
Moisture<br />
Resistance<br />
At +25/–55 °C and +25/+125 °C<br />
Formula:<br />
T.C.R= ------------------------- ×10 6 R2–R1 (ppm/°C)<br />
R1(t2–t1) Where<br />
t1=+25 °C or specified room temperature<br />
t2=–55 °C or +125 °C test temperature<br />
R1=resistance at reference temperature in ohms<br />
R2=resistance at test temperature in ohms<br />
At 70±5 °C for 1,000 hours, RCWV applied for<br />
1.5 hours on, 0.5 hour off, still air required<br />
Refer to table 2<br />
±(1.0%+0.05 Ω) for 1% tol.<br />
±(3.0%+0.05 Ω) for 5% tol.<br />
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