Document No
TRB-XXOS002N
2009/03/21
4/12
Metal Thin Film Chip Resistors
( RB series Standard )
Issued date
page
RB25
1/2 W
Refer 5.2
150V
300V
±25
±50
4.7Ω~1MΩ
4.7Ω~3MΩ
1Ω~3MΩ
± 0.05
± 0.1
± 0.25
± 0.50
Operating Temp(℃): -55℃ ~ +125℃
Note : Except for the above standardized products, we also provide the
customized products.
5.1 Derating Curve :
For resistors operated at ambient temperature over 70℃ , power rating shall be derated
according to figure 1.
100
P max.
Power ratio ( % )
50
0
-55
Figure 1
50
70
100
125
Ambient
Temp. (
C
)
5.2 Rated Voltage:
The rated voltage is calculated by the following formula:
E= P * R
E=
Rated Voltage(V)
P=
Rated Power(W)
R=
Resistance Value
(Ω
TA-I TECHNOLOGY CO., LTD
Document No
TRB-XXOS002N
2009/03/21
5/12
Metal Thin Film Chip Resistors
( RB series Standard )
Issued date
page
6. Reliability Tests:(As specified in JIS C 5202)
Test Items
Reference
standard
Condition of Test
+25 ~ +125
℃
Test Limits
Refer 5.0
Temperature Coefficient of
JIS-C5202-5.2
Resistance
Rapid Change of Temp.
Short Time Overload
Resistance to Dry Heat
Load Life
Resistance to Solder Heat
Bending
JIS-C5202-7.4
-55℃(30 min. ) / +125℃(30 min. ), 5
±(0.5%+0.05Ω)
cycles
±(0.5% + 0.05Ω)
±(0.5% +0.05Ω)
JIS-C5202-5.5 2.5 X rated voltage for 5sec
JIS-C5202-7.2 125±5℃ for 96±4Hrs
JIS-C5202-7.10
1000 hours at rated power , 70℃ ,
±(0.5% +0.05Ω)
1.5hours―ON ―, 0.5hour ―OFF‖
±(0.5% +0.05Ω)
±(0.5% +0.05Ω)
No abnormalities such as
flashover,
burning
dielectric breakdown shall
appear.
±(0.5% +0.05Ω)
JIS-C5202-6.10 270 ±5℃ solder , 10 ±1 sec dwell .
JIS-C5202—6.1 3mm deflection
Applying voltage :
Dielectric
Withstanding
0201 : 50V , 0402 & 0603 : 300V
JIS-C5202-5.7
Voltage (Voltage Proof)
The other 500V
for a minute .
Load Life with Humidity
JIS-C5202-7.5 40±2℃, 90~95% RH for 1000 hours
JIS-C5202-5.6
Applying voltage 100V for 1 minute.
Remark : 0201 50V
Insulation Resistance
≧1GΩ
Solderability
±5℃
sec dwell.
JIS-C5202-6.11 245
Solder :
solder,
/
2 ±0.5
Cu0.5
Sn96.5 Ag3.0 /
At least 95% of surface
area of electrode shall be
covered with new solder.
Vibration
ML-STD-202
Method 204
5 gs for 20 minutes, 12 cycles each of
±(0.5%+0.05Ω)
3 orientations.
Mech anical shock
ML-ST-D202
Method 213
Wave form : Tolerance for half sine
shock pulse Peakvalue is 100 gs ±(0.5%+0.05Ω)
Normal duration (D) is 6.
Note* :RCWV : Rated continuous working voltage .
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