Document No
Thick Film Chip Resistor Arrays
(
Lead-Free for CNC24 Concave Type
)
TCNC-240X001B
2007/08/03
1/9
Revised Date
page number
1. Scope :
This specification applies for the CNC24 Concave Type of thick film chip resistor arrays made by TA-I.
2.
Construction , Dimensions , Schematic :
2.1
Construction :
Plating Ni + Sn
Over Coat
Ceramic Substrate
Conductor
2.1.1 Chip Resistor Arrays :
W
B
A
T
G
102
L
P
C
D
2.2
Type
CNC24
Dimension :
UNIT:mm
L
2.0±0.1
W
1.0±0.1
T
0.4±0.1
P
0.50±0.1
A
0.3±0.1
B
0.2±0.1
C
0.3±0.1
D
G
0.15±0.1 0.25±0.15
TA-I TECHNOLOGY CO., LTD
Document No
Thick Film Chip Resistor Arrays
(
Lead-Free for CNC24 Concave Type
)
TCNC-240X001B
2007/08/03
3/9
Revised Date
page number
4.
Ratings & Characteristics :
PowerRating
at 70℃
Rating
Voltage
Max .Working
Voltage
Max. OverLoad
Voltage
Operating
Temp.(℃)
Resistance
Tolerance(%)
Resistance
Range (Ω)
Temp
Coefficient
PPM/℃
Type
CNC24
1/16W
Refer 4.2
25V
50V
-55~+125℃
±5%
10Ω~1MΩ
≦±300
0Ω THICK FILE CHIP RESISTOR ARRAYS
Type
CNC 24
Rated Current
1A
Max Overload Current
2.5 A
Resistance Range
50mΩ MAX
4.1
Derating Curve :
For resistors operated at ambient temperature over 70℃ , power rating shall be derated in
accordance with figure 1.
P max.
100
Power ratio ( % )
50
0
-55
50
Figure 1
70
100
125
Ambient
Temp. (
°C
)
4.2
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)
E.G. : What is CNC24JTN102 the rated voltage ?
CNC24JTN102 P:1/16W ; R:102 = 1KΩ = 1000Ω
E=
0.0625(W) * 1000(Ω)
=
7.9 (V)
TA-I TECHNOLOGY CO., LTD
Document No
Thick Film Chip Resistor Arrays
(
Lead-Free for CNC24 Concave Type
)
TCNC-240X001B
2007/08/03
4/9
Revised Date
page number
5.
Reliability Tests:(As specified in JIS C 5202)
Test Items
Reference
standard
JIS-C5202-5.2
Condition of Test
-55〜 +125
℃
Test Limits
(
∆
R R
)
Refer 4.0
±
( 2.0 % + 0.1Ω )
0Ω : 50mΩ or less
Temperature Coefficient
of Resistance
Short Time Overload
JIS-C5202-5.5
2.5 X rated voltage for 5 sec
2.5X rated voltage
or Max Overloading Voltage ,
1 sec “ON” 25 sec “OFF” ,
10000 cycles
1000 hours at rated voltage ,
70℃ , 1.5hours
“ON “, 0.5hour “OFF”
1000 hours at rated voltage ,
40±2℃, 90~95% RH
1.5hours “ON “, 0.5hour “OFF”
-55℃ (30 min. ) / +125
℃(30
min. )
5 cycles
245±5℃ solder, 2±0.5 sec dwell.
Solder : Sn96.5 / Ag3.0 / Cu0.5
Intermittent Overload
JIS-C5202-5.8
±
( 5.0% + 0.1Ω )
0Ω : 50mΩ or less
Load Life
JIS-C5202-7.10
±
(3.0% + 0.1Ω)
0Ω : 100mΩ or less
Load Life with Humidity
Rapid Change of
Temperature
Solderability
JIS-C5202-7.9
±
(3.0% + 0.1Ω)
0Ω : 100mΩ or less
±
(1.0% + 0.05Ω)
0Ω : 50mΩ or less
At least 95% of surface area
of electrode shall be covered with
new solder.
Without mechanical damage
such as breaks. Electrical
characteristics shall be satisfied
No abnormalities such as
flashover, burning dielectric
breakdown shall appear.
±
( 2.0% + 0.1Ω )
0Ω : 50mΩ or less
JIS-C5202-7.4
JIS-C5202-6.11
Core body
JIS C-5202-6.1.4
Pressure 1.0 kgf a R0.5 pressure rod
for 10 sec
Dielectric Withstanding
Voltage (Voltage Proof)
JIS-C5202-5.7
Applying voltage 100V for 1 minute.
Resistance to Solder Heat
JIS-C5202-6.10
270
±5℃
solder , 10
±1
sec dwell .
Note* : RCWV : Rated continuous working voltage .
6.
Marking
6.1
±
5% ( E24 )
Resistance value is expressed by 3 digits, the first two digits represent the
significant figures of nominal resistance value inΩ, and the third digit
represents exponent for base of 10.
E.G.
102 = 10×10
2
= 1KΩ
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