Cal-Chip
Electronics,
In
c
or
porated
CN S
ERIES
Thick Film Chip Resistor Arrays
1.0 Number of Element
Depend on its element’s number. (2-2 element. 4-4 element)
2.0 Resistance Tolerance
F: ±1%
J: ±5%
3.0 Nominal Resistance
Example: 103, 10 is effective digit, 3 is a multiple which represents the cube of 10, zero number is three.
4.0 Schematics
R
1
= R
2
= R
3
= R
4
5.0 Power Derating Curve
The resistors operated in ambient temperatures above 70°C, power rating must be derated in accordance
with the curve in Figure 1.
5.1 Rated Voltage
The value of rated voltage shall be determined from formula (1).
E =
√P
x R........(1)
E =Rated Voltage (V)
P = Power Rating (W)
R = Nominal Resistance (Ω)
6.0 Electrical / Machine Characteristics and Test Methods
Item
Specifications
Temperature Coefficient
Short Time Overload
TCR: ±200 ppm
±(2%+0.05Ω)
Inspection Temp.
Test Methods
Cold: +25°C~55°C
Hot: +25°C~+125°C
1. Apply 2.5 x rated voltage for 5 sec.
2. Wait 30 minutes
3. Measure resistance value
1. Dwell in chamber at 70±2°C for ON: 90 min. at
rated voltage; then OFF: 30 min.
2. Perform 1,000 hours cyclically
1. Dwell in humidity chamber at 40 ±2°C and 95% RH for
ON: 90 min. at rated voltage; then OFF: 30 min.
2. Perform 1,000 hours cyclically
1. -55±3°C~125±3°C, make 5 cycles.
2. Released 1 hour in room temp., then measure value.
1. Immersed in molten solder at 270±5°C for 10±.01 sec.
2.Released 1 hour in room temp., then measure value.
1. Immersed in rosin solution for 5-10 seconds.
2. Re-immersed in solder pot at 230±5°C for 3±0.5 sec
1. Perform 10,000 voltage cycles as follows: ON (2.5 x rated
voltage or current) 1 sec. and OFF 25 sec.
2. Released 30 min. without loading.
3. Measure resistance.
Apply 300VAC for 1 second
Apply 100VDC.
Load Life
±(3%+0.05Ω)
Load Life in Humidity
Temperature Cycling
Effect of Soldering
Solderability
Intermittent Overload
±(3%+0.05Ω)
±(1 %+0.05Ω)
±(2.5%+0.05Ω)
Non-damage by machinery
95% coverage min.
±(5%+0.1Ω)
Dielectric Withstanding Voltage
Insulation Resistance
No evidence of mechanical damage
10
8
Ω
min
66
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