TTC-512

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