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The quality and reliability of a product are substantially affected by product design. When designing a product, NPC uses the quality and reliability data, which we have accumulated over the years, taking your operating conditions into consideration. Then we check the product using the reliability test that is in compliance with "JEITA EIAJ ED-4701" or "MIL-STD-883". We periodically collect the test results and feed them back to the design department and the product process department in an effort to improve reliability. The following table shows the requirements of the standard reliability test of NPC.

[Reliability test requirements (standard)]

Test item		Test Method					Criteria
Test item		Reference standard	Test condition	LTPD	Test period	Number of samples	Criteria
High-temperature storage		JEITA EIAJ ED-4701 MIL-STD-883	Ta=125°C	3%	1000hr	77	0-1 criteria Electrical specification standard
Operating life		JEITA EIAJ ED-4701 MIL-STD-883	Ta=125 VDD=MAX	3%	1000hr	77	0-1 criteria Electrical specification standard
High-temperature-high-humidity bias		JEITA EIAJ ED-4701 MIL-STD-883	Ta=85°C RH=85% VDD=MAX	5%	1000hr	45	0-1 criteria Electrical specification standard
Saturated steam pressure (autoclave)		JEITA EIAJ ED-4701	Ta=121°C RH=100% 2 atm.	5%	100hr	45	0-1 criteria Electrical specification standard
Temperature cycle		JEITA EIAJ ED-4701 MIL-STD-883	-55°C/RT/125°C 30min/5min/30min	10%	100cycle	22	0-1 criteria Electrical specification standard
Thermal shock		JEITA EIAJ ED-4701 MIL-STD-883	Ta=0°C~100°C	10%	15cycle	22	0-1 criteria Electrical specification standard
Solder heat resistance		JEITA EIAJ ED-4701 JIS-C0050, C0054	Insertion type Ta=260°C With lead dipped SMD type Ta=240°C (non-lead-free) Ta=260°C (lead-free) IR reflow		10sec	11	0-1 criteria Electrical specification standard Exterior standard
Solderability		JEITA EIAJ ED-4701 MIL-STD-883	Ta=215°C		3sec	11	0-1 criteria 95% or more of outer lead must be wetted with solder.
Pin strength	Tensile	JEITA EIAJ ED-4701	Insertion type: 5 or 10N SMD type: 1 or 2.5 N		10sec	5	0-1 criteria Electrical specification standard Exterior standar
Pin strength	Bending	JEITA EIAJ ED-4701	90 degree SSMD types are not subjected.		back and forth twice	5	0-1 criteria Must not crack Electrical specification standard
Resistance of marking to solution		JEITA EIAJ ED-4701 JIS-C0052	Ta=23°C (IPA used)		5min	5	0-1 criteria Marking specification
Electrostatic discharge		JEITA EIAJ ED-4701	Capacitor charge method C=200pF,R=0Ω Applied 5 times Positive and negative strengths of all pins Ta=RT			5	All pins, ±300 V min.
Latchup		JEITA EIAJ ED-4701 JESD 17	Pulse voltage method VDD=MAX,Ta=RT Positive and negative strengths of all input and output pins Application of +10V positive pulse to VDD Application of -10V negative pulse to VSS f=10kHz, Duty10%, Z=50Ω			5	All input and output pins. ±10V min.