TAI-SAW TECHNOLOGY CO., LTD. No. 3, Industrial 2nd Rd., Ping-Chen Industrial District, Taoyuan, 324, Taiwan, R.O.C. TEL: 886-3-4690038 FAX: 886-3-4697532 E-mail: [email protected] Web: www.taisaw.com Approval Sheet For Product Specification Issued Date: 5/5/2004 (REV. NO: 2) Product Name: SMD 4x2.5 20.48MHz Crystal Unit TST Parts No.: TZ0257A Customer Parts No.: Company: Division: Approved by: Date: Checked by: Jay Tseng Approval by: TF Yang Date: 5/5/2004 TAI-SAW TECHNOLOGY CO., LTD. TST DCC Release document FR-71S03-01 TAI-SAW TECHNOLOGY CO., LTD. No. 3, Industrial 2nd Rd., Ping-Chen Industrial District, Taoyuan, 324, Taiwan, R.O.C. TEL: 886-3-4690038 FAX: 886-3-4697532 E-mail: [email protected] Web: www.taisaw.com SMD 4.0x2.5 20.48MHz Crystal Unit MODEL NO.: TZ0257A REV. NO.: 2 Features: Surface Mount Seam Weld Package Excellent Aging Good Frequency Perturbation and Stability over Temperature Ultra Miniature Package RoHS Compliant Lead free Lead-free soldering Description and Applications: Surface mount 4.0mmx2.5mm crystal unit for use in wireless telecommunications devices, especially for a need of ultra miniature package for mobility. Electrical Specifications: TZ0257A Specification Nominal Frequency 20.480000 MHz Mode of Oscillation Fundamental Storage Temperature Range -40°C to +85°C Operating Temperature Range 0°C to +70°C Frequency Stability over Operating Temperature +/ -25 ppm (referred to the value at 25°C) Frequency Make Tolerance (FL) +/- 25 ppm @ 25°C +/- 3°C Equivalent Series Resistance (ESR) 80 Ω max. Nominal Drive Level 10 uW Shunt Capacitance (Co) 2.0 pF max Load Capacitance (CL) 20 pF Marking Laser marking TAI-SAW TECHNOLOGY CO., LTD. TST DCC Release document 2 Mechanical Dimensions (mm): Pin Connection IN/OUT GND IN/OUT GND #1 pin #2 pin #3 pin #4 pin Recommended Land Pattern (mm): Marking: Line 1: Frequency (20.48) Line 2: TST Logo + Crystal Product Code + Date Code Product Code Table Year 2001 2005 2002 2006 2003 2007 2004 2008 Product Code Z z Z z TAI-SAW TECHNOLOGY CO., LTD. TST DCC Release document 3 Date Code Table WK01 WK02 WK03 WK04 WK05 WK06 WK07 WK08 WK09 WK10 WK11 WK12 WK13 A B C D E F G H I J K L M WK14 WK15 WK16 WK17 WK18 WK19 WK20 WK21 WK22 WK23 WK24 WK25 WK26 N O P Q R S T U V W X Y Z WK27 WK28 WK29 WK30 WK31 WK32 WK33 WK34 WK35 WK36 WK37 WK38 WK39 a b c d e f g h i j k l m WK40 WK41 WK42 WK43 WK44 WK45 WK46 WK47 WK48 WK49 WK50 WK51 WK52 n o p q r s t u v w x y z Reel Dimensions (mm): Tape Dimensions (mm): Direction of Feed TAI-SAW TECHNOLOGY CO., LTD. TST DCC Release document 4 [NOTE]: 1. Unless otherwise specified tolerance on dimension +/-0.1 mm. 2. Material: conductive polystyrene with color black. 3. 10 pitch cumulative tolerance +/-0.2 mm. Reflow Profile: 300 Reflow Area Rising Area Preheat Area Forced Cooling Area Temperature (deg C) 250 200 150 Max peak temperature: 260 deg C 100 50 0 0 60 120 180 240 300 360 Time (seconds) TAI-SAW TECHNOLOGY CO., LTD. TST DCC Release document 5