Crystal Part Numbering Guide Example: P/N ECS-160-20-5PX (Std P/N) P/N ECS-160-20-5PX-ADN (Custom P/N) ECS ECS INC. - 160 20 - Frequency Abbreviation 160=16.000 MHz (See page 2 for list of std frequencies) 5P - Custom/Value Added Options X A Frequency Tolerance @ +25° (Max) Blank =Std A =±25 ppm J = ±20 ppm R =±15 ppm C =±10 ppm Options Load Capacitance 20=20 pF S=Series Blank = Std 3IL=3rd In Line Lead SL=Sleeved B=Insulator 3L=3rd Lead F=Fund (Note 1) X=Pb Free/RoHS D Frequency Stability (Max) Over Temp (**) Blank =Std D =±100 ppm E =±50 ppm G =±30 ppm H =±25 ppm T =±20 ppm W =±15 ppm K =±10 ppm (1X) HC-49UX (8X) ECS-3x8X (9X) ECS-3x9X (4X) HC-49USX 3.5H (10X) ECS-3x10X (4LX) HC-49USX 2.5H (11) ECX-205* (4VX) HC-49USSX (12) ECX-12 (5PX) CSM-7X 4.3H (13X) ECS-2x6X (5PLX) CSM-7X 3.2H (13FLX) ECS-2x6-FLX (5PV) CSM-7SSX 2.6H (14X) ECS-1x5X (5G3X) CSM-7X-3L (14FLX) ECS-1x5-FLX (6) ECX-206* (17X) ECX-306X (7SX) ECX-3SX (18) CSM-12 (19A) ECX-19A (20A) CSM-8A (20BM) CSM-8M (20BQ) CSM-8Q (21) UM-5 (22) UM-1 (22SMJ)ECX-UM-1 (23A) ECX-64A (23B) ECX-64 (23C) ECX-64C (24) ECX-3TA* TR - Packaging TR=Tape & Reel Operating Temperature (Package Suffix) Model Types (3X) CSM-3X N (25) UM-4 (26) ECX-26* (27) ECX-15 (28A) CSM-4A (30) ECX-53 (30B) ECX-53B (30BQ) ECX-53BQ (32) ECX-31 (33) ECX-32 (33Q) ECX-33Q (34B) ECX-31B (35) CSM-9 (36) ECX-2236 (37) ECX-1637 (38) ECX-71 (39) ECX-39 (42) ECX-42 (46X) HC-46X Blank =Std L = -10 ~+70°C M = -20 ~+70°C N = -40 ~ +85°C P = -40 ~ +105°C S = -40 ~ +125°C U = -55 ~ +125°C * Discontinued ** Please consult ECS for available Temp Range options of tight stability crystals. Note 1: Crystals over 24.000 MHz will be 3rd overtone (if available on data sheet) unless fundamental mode is requested. An "F" suffix after the package type indicates a fundamental mode i.e. ECS-300-S-1-F would be a 30.000 MHz Fundamental mode crystal. 1105 South Ridgeview Road z Olathe, KS 66062 z Phone: 913.782.7787 z Fax: 913.782.6991 z www.ecsxtal.com Crystal Part Numbering Guide Standard Frequency Abbreviations CODE FREQUENCY MHz CODE FREQUENCY MHz CODE FREQUENCY MHz 10 1.000000 80 8.000000 162.5 16.257000 18 1.843200 81.92 8.192000 169.344 16.934400 20 2.000000 85 8.500000 177.3 17.734475 20.48 2.048000 90 9.000000 180 18.000000 24 2.457600 92.1 9.216000 184 18.432000 25 2.500000 95.4 9.545000 196.6 19.660800 25.6 2.560000 98.3 9.830400 200 20.000000 29 2.9491200 100 10.000000 214.7 21.477270 30 3.000000 107.3 10.738635 221 22.118400 32 3.276800 110 11.000000 240 24.000000 35 3.579545 110.4 11.046000 240.001 24.000140 36 3.686400 110.5 11.059200 245.7 24.576000 36.4 3.640000 112.2 11.228000 250 25.000000 37 3.700000 115.2 11.520000 260 26.000000 39 3.932160 119.8 11.981350 270 27.000000 40 4.000000 120 12.000000 300 30.000000 40.3 4.032000 120.003 12.000393 320 32.000000 41 4.096000 121 12.096000 330 33.000000 42 4.194304 122.8 12.288000 338 33.868800 44 4.433618 129.6 12.960000 352.5 35.251200 49 4.915200 135 13.516800 360 36.000000 50 5.000000 143 14.318180 380.005 38.000530 51 5.068000 146 14.690000 400 40.000000 52 5.185000 147.4 14.745600 403.2 40.320000 60 6.000000 150 15.000000 480 48.000000 61 6.144000 153.6 15.360000 500 50.000000 73 7.372800 160 16.000000 600 60.000000 76.8 7.680000 160.003 16.000312 800 80.000000 1105 South Ridgeview Road z Olathe, KS 66062 z Phone: 913.782.7787 z Fax: 913.782.6991 z www.ecsxtal.com