Ordering Guide www.vishay.com Vishay Dale Global Part Numbering Crystals GLOBAL PART NUMBERING X T 9 S MODEL NUMBER XT9S = XT49S XT9M = XT49M 2 0 A LOAD CAPACITANCE PACKAGE CODE 18 = 18 pF 20 = 20 pF NL = Series to be specified by customer Tape and reel G = RF5 (XT9S, XT9SL) H = RF7 (XT9M, XT9ML) Bulk A = B04 (all models) N A 4 0 M OPTIONS FREQUENCY NA = No additional options RR = Extended temperature of - 40 °C to + 85 °C Contact factory for all other options 4M = 4 MHz 40M = 40 MHz 100M = 100 MHz 12M288 = 12.288 MHz M is used as decimal place holder in frequency Example: XT49S-20 40M X T 5 7 2 0 MODEL NUMBER LOAD CAPACITANCE XT57 = XT57C XT46 = XT46C XT36 = XT36C 18 = 18 pF 20 = 20 pF NL = Series to be specified by customer A PACKAGE CODE Tape and reel H = RF7 Bulk A = B04 (all models) 4 0 M FREQUENCY 4M = 4 MHz 40M = 40 MHz 100M = 100 MHz 12M288 = 12.288 MHz M is used as decimal place holder in frequency Example: XT75C-20 40M Revision: 09-Nov-11 Document Number: 35003 1 For technical questions, contact: [email protected] THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000