Direction Time: XYZ each 50
Transverse time: 5 min.
Amplitude (total excursion)
Solder time: 3 ± 1 seconds
Temperature: 350° ± 10°C
Flux: 75% Methanol and
Solder: H60A or H63A
Solder time: 10 ± 1 seconds
Temperature: 260° ± 5°C
Flux: 75% Methanol and
Solder: H60A or H63A
Solder time: 3 ± 0.5 seconds
Temperature: 230° ± 5°C
strength
Terminal
Vibration test
Humidity Test
Cold test
9
8
7
6
5N 10 seconds
JIS C 0051.2.5
min.
1.5mm
Frequency: 10~55Hz
JIS C 0040
Time: 96 hours
Humidity: 90~95%
Temperature: 40°C
JIS C 0022
Time: 96 hours
Temperature:
JIS C 0020
25°C-
F. Reliability Test;
Heat test
test
Thermal cycle
(hand soldering)
soldering heat
Resistance to
Soldering heat
Resistance to
Solderbility
5
4
3
2
1
No.
25% Rosin
Time: 96 hours
Temperature: 100°C
JIS C 0021
70°C 30 min
25°C 5 min
Temperature
JIS C 0025 10 cycles
25% Rosin
10°C 30 min
-
Item Condition
strength and insulation resistance no less
No breakage of magnet wire, etc.
strength and insulation resistance no less
meet the requirement of dielectric
show any unusual appearance and should
it shall not
After that sample shall be replaced in
ength and insulation resistance no less
meet the requirement of dielectric
show any unusual appearance and should
normal ambient for 60 min., it shall not
After that sample shall be replaced in
strength and insulation resistanc
meet the requirement of dielectric
show any unusual appearance and should
normal ambient for 60 min., it shall not
After that sample shall be replaced in
than 10M
normal ambient for 60 min.,
than 10M
than 10M
than 10M
str
e no less
meet the requirement of dielectric
show any unusual appearance and should
normal ambient for 60 min., it shall not
After that sample shall be replaced in
strength and insulation resistance no less
meet the requirement of dielectric
show any unusual appearance and should
normal ambient for 60 min., it
After that sample shall be replaced in
more than 90% of circumference.
covered by solder uniformly at
After that the sample shall be
than 10M
unusual appearance.
Sample shall not show any
unusual appearance.
Sample shall not show any
Specifications
shall not
G. Test Methods;
1. Frequency Response:
FR=20 LOG
RS
VS VL(VL')
PRI SEC
VS: Constant input voltage (V)
VL: Output voltage at any other frequency (V)
VL: Output voltage at reference frequency, 1KHz (V)
RS: Primary source impedance ( )
RL: Secondary load impedance ( )
RL
RL: Secondary load impedance ( )
RS: Primary source impedance ( )
VS: Input voltage (V)
VL: Output voltage at frequency, 1KHz (V)
4 VL x RS
2. Insertion Loss:
VS
SEC
VL'
RS
PRI
RL
2
VL'
VL (dB)
T1
T1: Transformer under test
VS x RL
2
IL=10 LOG (dB)
T1
T1: Transformer under test
G. Test Methods;
4. Longitudinal Balance:
LB=20 LOG
RS1
VS
PRI SEC
RL
VM: Longitudinal unbalanced voltage (V)
VS: Input voltage (V)
RS1, RS2: Half of primary source impedance ( )
RL: Secondary source impedance ( )
VS
VM
RS2
VM
3. Return Loss:
RL=20 LOG
RS1, RS2, RS3: Primary source impedance ( )
VS: Divided input voltage (V)
VM: Unbalanced voltage (V)
RS3
VS
VM RL
SEC
(dB)
PRI
VM
VS
RS2
RS1
T1
T1: Transformer under test
T1: Transformer under test
(dB)
RL: Secondary load impedance ( )
