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PDF RC1218 Data sheet ( Hoja de datos )

Número de pieza RC1218
Descripción Chip Resistors
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DATA SHEET
CHIP RESISTORS
RC1218
5%; 1%

1 page




RC1218 pdf
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Chip Resistor Surface Mount RC SERIES 1218
5
7
TYPE
Temperature
Coefficient of
Resistance
(T.C.R.)
TEST METHOD
Measure resistance at
+25°C or specified room
temperature as R1, then
measure at –55°C or
+155°C respectively as R2.
Determine the
temperature coefficient of
resistance from the
following formula:
Formula
T.C.R. = -----R---2--–--R---1---------- ×106 (ppm/°C)
R1(t2–t1)
Where
t1=+25°C or specified room temperature
t2=–55°C or +155°C test temperature
R1=resistance at reference temperature in ohms
R2=resistance at test temperature in ohms
ACCEPTANCE STANDARD
Refer to table 2
Thermal
Shock
At –55±3°C for 2 minutes and at +155±2°C for 2 minutes as one cycle. After 5
cycles, the specimen shall be stabilized at room temp.
Measure the resistance to determine ΔR/R(%) after one more hour.
±(0.5%+0.05) for 1% tol.
±(1%+0.05) for 5% tol.
Low
Temperature
Operation
Place the specimen in a test chamber maintained at –65 (+0/–5)°C. After one hour
stabilization at this temperature, full rated working voltage shall be applied for 45
(+5/–0) minutes. Have15 (+5/–0 ) minutes after remove the voltage, the specimen
shall be removed from the chamber and stabilized at room temperature for 24 hrs.
Measure the resistance to determine ΔR/R(%).
±(0.5%+0.05) for 1% tol .
±(1.0%+0.05) for 5% tol.
No visible damage
Short
Time
Overload
Apply 2.5 times of rated voltage but not exceeding the maximum overload voltage
for 5 seconds. Have the specimen stabilized at room temperature for 30 minutes
minimum.
Measure the resistance to determine ΔR/R(%).
±(1.0%+0.05) for 1% tol.
±(2.0%+0.05) for 5% tol.
No visible damage
Insulation
Resistance
Place the specimen in the jig and apply a rated
continues overload voltage (R.C.O.V) for one
minute as shown.
Measure the insulation resistance.
Type
Voltage (DC)
RC1218
400V
10,000M
Dielectric
Withstand
Voltage
Place the specimen in the jig and apply a
specified value continuous overload voltage as
shown for one minute.
Type
Voltage (AC)
RC1218
500Vrms
Breakdown voltage>
specification and without
open/short
Resistance
To Soldering
Heat
Immerse the specimen in the solder pot at 260±5°C. for 10±1 seconds. Have the
specimen stabilized at room temperature for 30 minutes minimum.
Measure the resistance to determine ΔR/R(%).
±(0.5%+0.05) for 1% tol.
±(1.0%+0.05) for 5% tol.
No visible damage
Mar. 09, 2004 V.0
www.yageo.com

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