ECX-1247 SMD CRYSTAL The sub miniature ECX-1247 is a very compact SMD Crystal. The 1.6 x 1.2 x 0.3 mm ceramic package is ideal for LoRa WAN, RFID, Request a Sample NFC, WiFi, RF, Video, and Audio applications. OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS ECX-1247 SMD CRYSTAL PARAMETERS CONDITIONS ECX-1247 UNITS MIN TYP MAX Frequency 24.000 80.000 MHz Mode of Oscillation Fundamental Frequency Tolerance* @ +25°C ± 20 ppm Frequency Stability* -40 ~ +85°C ± 20 ppm Shunt Capacitance Co 5 pF Load Capacitance Specify in P/N 8 pF • Low Profile Drive Level DL 100 μW • 1.6 x 1.2 mm Footprint • Extended Temp. Range Option Operating Temperature* Topr -40 +85 °C • RoHS Compliant Storage Temperature Tstg -40 +90 °C DIMENSIONS (mm) Aging (First Year) @ +25°C ±3°C ±5 ppm Frequency (MHz) ESR Ω Max. 24.000 ~ 29.999 100 30.000 ~ 48.999 80 49.000 ~ 80.000 50 Pad Connections 1 In/Out 2 Gnd Figure 1) Top, Side, and Bottom 3 Out/In Crystal is symmetrical, pad 1 & 3 are interchangeable. 4 Gnd Chamfer on the bottom pad has no electrical Figure 2) Suggested land significance. pattern PART NUMBERING GUIDE: Example ECS-260-8-47-JTN-TR ECS - FREQUENCY ABBREVIATION LOAD PACKAGE AVAILABLE OPTIONS PACKAGING CAPACITANCE Tolerance Stability Temp Range ECS 260 = 26.000 MHz 8 = 8 pF -47 = Blank = Std Blank= Std Blank= Std TR = See P/N Guide S=Series ECX-1247 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 C = ± 10 ppm H = ± 25 ppm N = -40 ~ +85°C 1K/Reel * 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 † Rev.2017 15351 West 109th Street | Lenexa, KS 66219 | Phone: 913.782.7787 | Fax: 913.782.6991 | www.ecsxtal.com

ECX-1247 SMD CRYSTAL POCKET TAPE DIMENSIONS (mm) SOLDER PROFILE Peak solder Temp +260°C Max 10 sec Max. DEVELOPED FREQUENCIES 2 Cycles Max. Abbreviation Frequency (MHZ) MSL 1, Lead Finish Au 240 24.000 245.7 24.576 260 26.000 320 32.000 360 36.000 400 40.000 480 48.000 500 50.000 Figure 1) Suggested Reflow Profile 15351 West 109th Street | Lenexa, KS 66219 | Phone: 913.782.7787 | Fax: 913.782.6991 | www.ecsxtal.com