12
Coverage : 95% each termination.
Visual : No crack of termination parts and
ceramic exposure of surface by melting
After immersing in flux. dip into the 235±5℃molten
solder for 2±0.5 sec
Solder : S63A(KSD 6704)
Flux : ROSIN(KSM 2951)
Flux is the composition of ROSIN and the methanol Weight
rate of ROSIN is about 25%
Solderability
Bending Test △R : ±(0.5%+0.05Ω) of the initial value
Visual : No evidence of mechanical damage. After soldering resistor on the
PCB, 3mm of bending shall
be applied for 10 sec.
Material of PCB : Glass Epoxy
Thickness : 1.6mm
Measure resistance during load application
Terminal Strenght Load pull : 0.5kg
1005(1/16W), 1608(1/16W)0.3kg pull Direction fixed 0.4 lead
Terminal Strenght △R : ±(1%+0.05Ω) of the initial value
Visual : No evidence of mechanical damage.
Anti-Vibration Test △R : ±(1%+0.05Ω) of the initial value
Visual : No evidence of mechanical damage.
Immerse in molten solder at 260±5℃for 10±1 sec.
Preheat and soldering Procedure
2 hours each in X, Y, and Z axis(toyal 6 hours) 10 to
55 Hz sweep in 1 minute ampiltude.
Item Specification Test Method
CHARACTERISTICS PERFORMANCE
ELECTRICAL CHARACTERISTICS
MECHANICAL CHARACTERISTICS
TTHHIICCKK FFIILLMM CCHHIIPP RREESSIISSTTOORRSS
Direct Current
Resistance Within the regulated resistance tolerance.
Jumper chip 50
㏁
1R 10:+300ppm/℃
-200ppm/℃
10R 1M:±100ppm/℃
1MR10M:±300ppm/℃
△R : ±(1%+0.1Ω) of the initial value
Visual : No evidence of mechanical damage
Jumper chip : 50
㏁
Apply 2.5 times rated voltage for 5sec.
Wait 30 minutes at room temperature and measure the
resistance value.
△R : ±(3%+0.1Ω) of the initial value
Visual : No evidence of mechanical damage
Jumper chip : 50
㏁
No evidence of mechanical damage. Apply AC 500V for 1 minute.
1005(1/16W), 1608(1/16W):Apply AC 100V for 1 minute
Over the 1000
㏁
Apply DC 500V for 1 minute.
1005(1/16W), 1608(1/16W):Apply DC 100V for 1 minute
Perform 10,000 cycles at 2.5 times RCW or the Max.
over load voltage
ON(2.5 times rated volage) : 1 sec
OFF : 25 sec
Have stabilization time of 30 minutes without loading
and measure resistance.
Test temperature(℃) (20)
→
(-55)
→
(20)
→
(125)
→
(20)
T.C.R(ppm/℃) = (R-Ro)/Ro×1/(T-To) ×10
6
T = 20(℃)
T = Test temperature(℃)
Ro = Resistance at room temperature(Ω)
R = Resistance at T(Ω)
Applying time:within 5 sec
T.C.R(Resistance
Temperature
Characteristic)
Short-time Overload
Intermittent
Overload
Dielectric withstand-
ing Voltage
Insulation Resistance
Item Specification Test Method
Resistance range(Ω)
R 100
100R 1K
1KR 10K
10KR 100K
100KR 1M
1MR
Max test voltage(V)
∧
∧
∧
∧
∧
∧
∧
0.3
1.0
3
10
25
50
Solder : S63A(SSD 6704)
Flux : The composition of ROSIN
(KSM295)25% and methanol
(KSM 1658)75%
Temperature(℃)Time(sec)
80 - 100
150 - 180
260 + 5
150 - 180
80 - 100
120
120
10
60
60