Temperature Cycling Test

Temperature Cycling Test

Temperature Cycling, in order to simulate the temperature conditions encountered by different electronic components in the actual use environment, changing the ambient temperature difference range and rapid rise and fall temperature change can provide a more stringent test environment, but it must be noted that additional effects may be caused to material testing. For the relevant international standard test conditions of temperature cycle test, there are two ways to set the temperature change. Macroshow Technology provides an intuitive setting interface, which is convenient for users to set according to the specification. You can choose the total Ramp time or set the rise and cooling rate with the temperature change rate per minute.

List of international specifications for temperature cycling tests:

Total Ramp time (min) : JESD22-A104, MIL-STD-8831, CR200315

Temperature variation per minute (℃/min) : IEC 60749, IPC-9701, Bellcore-GR-468, MIL-2164

Example: Lead-free solder joint reliability test

Instructions: For the reliability test of lead-free solder joints, different test conditions will also be different in terms of the temperature change setting mode. For example, (JEDEC JESD22-A104) will specify the temperature change time with the total time [10min], while other conditions will specify the temperature change rate with [10℃/ min], such as from 100 ℃ to 0℃. With a temperature change of 10 degrees per minute, that is to say, the total temperature change time is 10 minutes.

100℃ [10min]←→0℃[10min], Ramp: 10℃/ min, 6500cycle

-40℃[5min]←→125℃ [5min], Ramp: 10min,

200cycle check once, 2000cycle tensile test [JEDEC JESD22-A104]

-40℃(15min)←→125℃(15min), Ramp: 15min, 2000cycle

Example: LED Automotive lighting (High Power LED)

The temperature cycle test condition of LED car lights is -40 ° C to 100 ° C for 30 minutes, the total temperature change time is 5 minutes, if converted into temperature change rate, it is 28 degrees per minute (28 ° C /min).

Test conditions: -40℃(30min)←→100℃(30min), Ramp: 5min