DETAILED SPECIFICATION FOR A SURFACE MOUNT 450 KHZ CERAMIC FILTER Page 1 of 6 DETAILED SPECIFICATION FOR A SURFACE MOUNT 450 KHZ CERAMIC FILTER 1.0 PURPOSE This specification show cover the characteristics of a surface mount 450 KHz ceramic filter, which mainly used for FM broadcast receiver. 2.0 3.0 MODEL NAME 2.1 Part No. : LTWC450F 2.2 Specification No. : 2.832.404 2.3 Revision No. :1 2.4 Date : October 22, 2009 ABSOLUTE MAXIMUM RATINGS “Absolute Maximum Ratings” are those values beyond which the life of the device cannot be guaranteed. They are not meant to imply that the device can or should be operated at these limited. No. 4.0 Parameter 3.1 Withstanding Voltage 3.2 Ambient Operating Temperature Range 3.3 Lead Temperature for Soldering 1/16” from Body for 10sec 3.4 Storage Temperature Range 3.5 3.6 Rating Unit 50 VDC -20 ~ +80 °C 260 °C -35 ~ +85 °C Power Dissipation (Ta = 25°C) 100 mW Isolation Resistance 100 MΩ Maximum Unit ELECTRICAL CHARACTERISTICS No. Ta = 25°C Parameter Minimum Typical 4.1 Center Frequency Fo NS 450 NS KHz 4.2 Initial Tolerance - - ±1.5 KHz 3dB Bandwidth ±5.5 - - KHz 6dB Bandwidth ±7.5 - - KHz - - ±15.0 KHz 50 - - dB - - 4.0 dB dB 4.3 50dB Bandwidth 4.4 Stop Band Attenuation 4.5 Insertion Loss 4.6 Ripple in 450 ± 4KHz 4.7 Spurious Response (0.1 to 1.0MHz) 4.8 Group Delay Time 4.9 4.10 Temperature Characteristics Over -20°C ~ +80°C I/O Impedance - - 2.0 20 - - dB - - 50 μsec - - ±0.5 % - 1.5 - KΩ NS = Not Specified 5.0 TEST CIRCUIT 5.1 Measurement Condition: The reference temperature shall be 25°C ± 2°C. The measurement shall be performed at the temperature range of 5°C to 35°C unless otherwise the result is doubtful. 5.2 Test Circuit and Equipment: Oscillating frequency shall be measured by the standard test circuit as shown in Figure 2. Resonant impedance shall be measured by HP87510A Network Analyzer. Phone: +86 (10) 5820-3910 Vanlong Technology Co., Ltd. Fax: +86 (10) 5820-3915 Email: [email protected] Web: http://www.vanlong.com DETAILED SPECIFICATION FOR A SURFACE MOUNT 450 KHZ CERAMIC FILTER \ 6.0 PHYSICAL CHARACTERISTICS No. 6.1 7.0 Page 2 of 6 Item Random Drop 6.2 Vibration 6.3 Resistance to Soldering Heat 6.4 Solderability 6.5 Substrate Bending Test 6.6 Adhesion 6.7 Reflow Soldering 6.8 Washability Condition of Test Requirements The Filter shall be measured after 3 times random drops from the height of 30cm on concrete floor. The Filter shall be measured after being applied vibration of amplitude of 1.5mm with 10 to 55Hz bands of vibration frequency to each of 3 perpendicular directions for 1 hour. Lead terminals are immersed up to 1.5mm from the Filter’s body in solder bath of 350°C ± 10°C for 3 ± 0.5 seconds or 260°C ± 5°C for 10 ± 1 seconds, and then the Filter shall be measured after being placed in natural condition for 1 hour. Lead terminals are immersed in resin for 5 seconds and then immersed in soldering bath of 260°C ± 10°C for 25± 1 seconds. Apply pressure in the direction of arrow (see Figure 3) at a rate of about 0.5mm per second until it reaches a bend of 3mm and hold for 30 seconds. A static load of 20N to the direction of the arrow (see Figure 4) shall be applied on the core of the filter and hold for 10 seconds. Put on the solder paste on the printed wiring board (pattern is shown in Figure 5), then samples shall be mounted and soldered under the condition. Put on the printed wiring board (pattern is shown in Figure 6), then it shall be subjected to the room atmosphere for 24 hours prior to the measurement. Ultrasonic wash not available No visible damage and the measured values shall meet Table 1. The measured values shall meet Table 1. The measured values shall meet Table 1. 95% min. lead terminals shall be wet with solder. No visible damage and the measured values shall meet Table 1. ENVIRONMENTAL CHARACTERISTICS No. Item 7.1 High Temperature 7.2 Low Temperature 7.3 Humidity 7.4 Heat Shock Phone: +86 (10) 5820-3910 Condition of Test Requirements After being placed in a chamber with +85°C ± 2°C for 96 ± 4 hours and then being placed in natural condition for 1 hour. The Filter shall be measured. After being placed in a chamber with -20°C ± 2°C for 96 ± 4 hours and then being placed in natural condition for 1 hour. The Filter shall be measured. After being placed in a chamber with 90 to 95% R.H. at +40°C ± 2°C for 96 ± 4 hours and then being placed in natural condition for 1 hour. The Filter shall be measured. After being kept at room temperature, the Filter shall be placed at temperature of –20°C for 30 minutes, then the Filter shall be immediately placed at temperature of 80°C, after 30 minutes at temperature of 80°C, the Filter shall be returned to –20°C again. After 5 times above cycles, the Filter shall be returned to room temperature, after 1 hour in natural condition, the Filter shall be measured. Vanlong Technology Co., Ltd. Fax: +86 (10) 5820-3915 Email: [email protected] The measured values shall meet Table 1. The measured values shall meet Table 1. The measured values shall meet Table 1. The measured values shall meet Table 1. Web: http://www.vanlong.com DETAILED SPECIFICATION FOR A SURFACE MOUNT 450 KHZ CERAMIC FILTER Page 3 of 6 TABLE 1 MEASURING REQUIREMENTS Measurements Requirements Unit 450 ± 1.5 max KHz 6dB Bandwidth ±7.5 max KHz Insertion Loss 6.0 max dB Ripple (450 ± 4KHz) 2.5 max dB 45 min dB Center Frequency Stop Band Attenuation 8.0 OUTLINE DIMENSIONS 8.1 Appearance: No visible damage and dirt. 8.2 Dimensions: See Figure 1 8.3 Packing and reeling dimensions: See Figure 7 and Figure 8. 8.4 Construction: Leads are soldered on electrode and body is molded by resin. 9.0 REVIEW OF SPECIFICATIONS When something gets doubtful with this specification, we shall jointly work to get an agreement. APPENDIX: EIAJ CODE Year\Month 1 2 3 4 5 6 7 8 9 10 11 12 2009 A B C D E F G H J K L M 2010 N P Q R S T U V W X Y Z Phone: +86 (10) 5820-3910 Vanlong Technology Co., Ltd. Fax: +86 (10) 5820-3915 Email: [email protected] Web: http://www.vanlong.com DETAILED SPECIFICATION FOR A SURFACE MOUNT 450 KHZ CERAMIC FILTER Page 4 of 6 FIGURE 1 OUTLINE DIMENSIONS C50E * Pin Connection: (1) Input (2) Output (3),(4) Ground * : EIAJ code Unit: mm Dimension Tol.: ±0.3 FIGURE 2 TEST CIRCUIT Rg + R1 = R2 = 1.5KΩ Phone: +86 (10) 5820-3910 Vanlong Technology Co., Ltd. Fax: +86 (10) 5820-3915 Email: [email protected] Web: http://www.vanlong.com DETAILED SPECIFICATION FOR A SURFACE MOUNT 450 KHZ CERAMIC FILTER FIGURE 3 Page 5 of 6 FIGURE 4 SUBSTRATE BENDING ADHESION PCB: 0.8t x 100mm PCB: 0.8t x 100mm FIGURE 5 PRINTED WIRED BOARD FIGURE 6 REFLOW SOLDERING TEMPERATURE Phone: +86 (10) 5820-3910 Vanlong Technology Co., Ltd. Fax: +86 (10) 5820-3915 Email: [email protected] Web: http://www.vanlong.com DETAILED SPECIFICATION FOR A SURFACE MOUNT 450 KHZ CERAMIC FILTER Page 6 of 6 FIGURE 7 TAPING DIMENSIONS DIMENSIONS Item Code Dimension Tolerance P 12.0 ± 0.1 Pitch of sprocket hole (1) Po 4.0 ± 0.1 Length from hole center to component center P1 6.0 ± 0.1 Width of carrier tape W 24.0 ± 0.1 Width of adhesive tape Wo 11.5 ± 0.2 Gap of hold down tape and carrier tape W2 1.75 ± 0.1 Diameter of sprocket hole Do ∅1.5 + 0.1 Diameter of component hole D1 ∅1.5 + 0.1 t 3.6 ± 0.1 Pitch of components Total tape thickness Remark FIGURE 8 REELING DIMENSIONS All dimensions are in mm Phone: +86 (10) 5820-3910 Vanlong Technology Co., Ltd. Fax: +86 (10) 5820-3915 Email: [email protected] Web: http://www.vanlong.com