What is MSL?
Posted by - NA - on 26 January 2008 05:04 AM

Moisture Sensitivity Level

 

Moisture Sensitivity Level or MSL is a classification defined by JEDEC standard J-STD-020 that applies to nonhermetic solid state surface mount devices (SMDs) that are sensitive to moisture induced stress. In general all products, EXCEPT for products provided in packed, dry bags, are MSL 1.

 

Level

Floor Life

Product Type

Time

Conditions

1

Unlimited

30C, 85% RH

TR, DI, R, C, TC (TC, TCS, TCT, and TCFG Series), LED (THD)

2

1year

30C, 60% RH

 

2A

4 weeks

30C, 60% RH

 

3

168 hr

30C, 60% RH

LED (SMD), TC (TCO and TCTO Series)

4

72 hr

30C, 60% RH

 

5

48 hr

30C, 60% RH

 

5A

24 hr

30C, 60% RH

 

6

Time on Label

30C, 60% RH

 

Product type key:

  • Tr: transistor
  • DI: diode
  • R: resistor
  • C: ceramic capacitor
  • TC: tantalum capacitor
  • LED: light-emitting diode
  • THD: through-hole device
  • SMD: surface-mount device
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