-32.768K  
   
    Temperature Range
= -10°C to +60°C
- = -40°C to +85°C (S3881)
E = -40°C to +85°C
    Model
S3881 = CMOS 2.5x4x1mm ceramic LCC
S3883 = CMOS 4x6.5x2mm ceramic base with metal cover
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