GR-468-CORE for optoelectronic systems

Is test 5.20 thermal cycling or thermal shock? 5.20 states: The procedure should agree with Method 1010 of MIL-STD 883C, with a minimum temperature ramp rate of 10°C/min.”, which makes it sound like a chamber capable of only 10°C/min. is required.

“3.1 Timing. The total transfer time from hot to cold or from cold to hot shall not exceed one minute. The load may be transferred when the worst case load temperature is within the limits specified in table I. However, the dwell time shall not be less than 10 minutes and the load shall reach the specified temperature within 15 minutes.” (Mil-Std 883 method 1010.7)

Either way you read the test, the TS2-60-A is still your best choice for doing this test with the smallest chamber and least resources required.

Paragraph	Title	Description	Benchtop Models	Reach-in Models	Other Models
4.3.2	Reliability Thermal Shock Test	Liquid thermal shock, 0 to 100°C, per Mil-Std 883, method 1011			Thermal Shock Chambers
4.4.3 181.1	Screening	-40 to 70°C (or 85°C), 20 cycles	Thermal Shock Chambers	Various Platinum models for 10°C/min.	Thermal Shock Chambers or Faster temperature cycling of 5 to 20°C/min. series
4.4.3 181.2	Screening	70°C or 85°C for 96 hours	Any benchtop or ovens	Any environmental test chamber or Platinum
5.18	Accelerated Aging	70°C or 85°C for 2,000 hours (optional 5,000 hours)	Any benchtop or ovens	Any environmental test chamber or Platinum
5.20	Temperature cycling	-40 to 70°C (or 85°C) per Mil-Std 883, method 1010 100 to 1,000 cycles	Thermal Shock Chambers	Various Platinum models for 10°C/min.	Thermal Shock Chambers or Faster temperature cycling of 5 to 20°C/min. series
5.21	Damp Heat	85°C / 85%RH for 1,000 hours or 50°C / 85%RH for 3,500 hours	SH or LH series	Any environmental test chamber
5.2.3	Cyclic Moisture Resistance	25 to 75°C cycling with 85-95%RH. One -40°C cycle per 5 sub-cycles Mil-Std 883, method 1004	SH-241, SH-261, SH-641, or SH-661	Any environmental test chamber or Platinum

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