CSM-4AX SMD CRYSTAL The CSM-4AX is an excellent choice for a low cost SMD crystal. The CSM-4AX (28AX) has a case height of 5.0 mm Max. in a resistance weld metal package. Lower profile Request a Sample package height of 4.0 mm Max. is available with the (28ALX) package. OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS CSM-4AX SMD CRYSTAL PARAMETERS CONDITIONS CSM-4AX UNITS MIN TYP MAX Frequency 3.57 30.000 MHz Mode of Oscillation Fundamental Frequency Tolerance* @ +25°C ± 30 ppm Frequency Stability* -10 ~ +70°C ± 50 ppm Shunt Capacitance Co 7 pF Load Capacitance Specify in P/N 10 20 Series pF  Cost Effective Drive Level DL 500 μW  Low Profile  Industry Standard Footprint Operating Temperature* Topr -10 +70 °C  Pb Free/RoHS Compliant Storage Temperature Tstg -55 +125 °C Aging (First Year) @ +25°C ±3°C ±5 ppm DIMENSIONS (mm) Frequency (MHz) ESR Ω Max. 3.57 ~ 4.999 200 5.000 ~ 5.999 150 6.000 ~ 6.999 100 7.000 ~ 8.999 80 9.000 ~ 12.999 60 13.000 ~ 19.999 40 20.000 ~ 30.000 30 Figure 1) Top, Side, and End Figure 2) Suggested land pattern PART NUMBERING GUIDE: Example ECS-200-20-28AX-TR ECS - FREQUENCY ABBREVIATION LOAD PACKAGE AVAILABLE OPTIONS PACKAGING CAPACITANCE Tolerance Stability Temp Range ECS 200 = 20.000 MHz 20 = 20 pF 28AX = 5.0 mm Blank = Std Blank= Std Blank= Std TR = See P/N Guide S = Series 28ALX = 4.0 mm A = ± 25 ppm D= ±100 ppm L = -10 ~ +70°C Tape J = ± 20 ppm E = ± 50 ppm M = -20 ~ +70°C & Reel R = ± 15 ppm G = ± 30 ppm Y = -30 ~ +85°C 1K/Reel C = ± 10 ppm H = ± 25 ppm N = -40 ~ +85°C * Specify available options in P/N. T = ± 20 ppm † P = -40 ~ +105°C W = ±15 ppm † S = -40 ~ +125°C † Contact ECS for availability over extended temp range. K = ± 10 ppm † U = -55 ~ +125°C Rev.2017 15351 West 109th Street | Lenexa, KS 66219 | Phone: 913.782.7787 | Fax: 913.782.6991 | www.ecsxtal.com

CSM-4AX SMD CRYSTAL POCKET TAPE DIMENSIONS (mm) DEVELOPED FREQUENCIES SOLDER PROFILE Abbreviation Frequency (MHZ) Peak solder Temp +260°C Max 10 sec Max. 036 3.6864 2 Cycles Max. 040 4.000 MSL 1, Lead Finish Ag 060 6.000 073 7.3728 080 8.000 100 10.000 110.5 11.0592 120 12.000 122.8 12.288 143 14.31818 147.4 14.7456 160 16.000 184 18.432 200 20.000 240 24.000 250 25.000 Figure 1) Suggested Reflow Profile 15351 West 109th Street | Lenexa, KS 66219 | Phone: 913.782.7787 | Fax: 913.782.6991 | www.ecsxtal.com