MLCC with FLEXITERM® General Specifications GENERAL DESCRIPTION With increased requirements from the automotive industry for additional component robustness, AVX recognized the need to produce a MLCC with enhanced mechanical strength. It was noted that many components may be subject to severe flexing and vibration when used in various under the hood automotive and other harsh environment applications. To satisfy the requirement for enhanced mechanical strength, AVX had to find a way of ensuring electrical integrity is maintained whilst external forces are being applied to the component. It was found that the structure of the termination needed to be flexible and after much research and development, AVX launched FLEXITERM ® . FLEXITERM ® is designed to enhance the mechanical flexure and temperature cycling performance of a standard ceramic capacitor with an X7R dielectric. The industry standard for flexure is 2mm minimum. Using FLEXITERM®, AVX provides up to 5mm of flexure without internal cracks. Beyond 5mm, the capacitor will generally fail “open”. As well as for automotive applications FLEXITERM® will provide Design Engineers with a satisfactory solution when designing PCB’s which may be subject to high levels of board flexure. PRODUCT ADVANTAGES • High mechanical performance able to withstand, 5mm bend test guaranteed. • Increased temperature cycling performance, 3000 cycles and beyond. • Flexible termination system. • Reduction in circuit board flex failures. • Base metal electrode system. • Automotive or commercial grade products available. APPLICATIONS High Flexure Stress Circuit Boards • e.g. Depanelization: Components near edges of board. Variable Temperature Applications • Soft termination offers improved reliability performance in applications where there is temperature variation. • e.g. All kind of engine sensors: Direct connection to battery rail. Automotive Applications • Improved reliability. • Excellent mechanical performance and thermo mechanical performance. HOW TO ORDER 0805 5 C 104 K Style 0603 0805 1206 1210 1812 2220 Voltage 6 = 6.3V Z = 10V Y = 16V 3 = 25V 5 = 50V 1 = 100V 2 = 200V Dielectric C = X7R F = X8R Capacitance Code (In pF) 2 Sig Digits + Number of Zeros e.g., 104 = 100nF Capacitance Tolerance J = ±5%* K = ±10% M = ±20% *≤1μF only NOTE: Contact factory for availability of Tolerance Options for Specific Part Numbers. 46 A Z Failure Terminations Rate Z = FLEXITERM® A=Commercial For FLEXITERM® 4 = Automotive with Tin/Lead termination see AVX LD Series 2 A Packaging 2 = 7" reel 4 = 13" reel Special Code A = Std. Product MLCC with FLEXITERM® Specifications and Test Methods BOARD BEND TEST PROCEDURE PERFORMANCE TESTING According to AEC-Q200 AEC-Q200 Qualification: • Created by the Automotive Electronics Council • Specification defining stress test qualification for passive components Testing: Key tests used to compare soft termination to AEC-Q200 qualification: • Bend Test • Temperature Cycle Test Test Procedure as per AEC-Q200: Sample size: 20 components Span: 90mm Minimum deflection spec: 2 mm LOADING KNIFE • Components soldered onto FR4 PCB (Figure 1) MOUNTING ASSEMBLY • Board connected electrically to the test equipment (Figure 2) DIGITAL CALIPER BEND TESTPLATE CONNECTOR CONTROL PANEL CONTROL PANEL Fig 1 - PCB layout with electrical connections BOARD BEND TEST RESULTS Fig 2 - Board Bend test equipment 0603 Substrate Bend (mm) NPO X7R X7R soft term 1206 12 10 8 6 4 2 0 NPO X7R 0805 Substrate Bend (mm) 12 10 8 6 4 2 0 12 10 8 6 4 2 0 Substrate Bend (mm) Substrate Bend (mm) AEC-Q200 Vrs AVX FLEXITERM® Bend Test 12 10 8 6 4 2 0 NPO X7R AVX ENHANCED SOFT TERMINATION BEND TEST PROCEDURE X7R soft term 1210 X7R soft term NPO X7R Bend Test The capacitor is soldered to the printed circuit board as shown and is bent up to 10mm at 1mm per second: Max. = 10mm X7R soft term TABLE SUMMARY 90mm Typical bend test results are shown below: Style Conventional Termination FLEXITERM® 0603 >2mm >5mm 0805 >2mm >5mm 1206 >2mm >5mm TEMPERATURE CYCLE TEST PROCEDURE Test Procedure as per AEC-Q200: The test is conducted to determine the resistance of the component when it is exposed to extremes of alternating high and low temperatures. • Sample lot size quantity 77 pieces • TC chamber cycle from -55ºC to +125ºC for 1000 cycles • Interim electrical measurements at 250, 500, 1000 cycles • Measure parameter capacitance dissipation factor, insulation resistance Test Temperature Profile (1 cycle) +1250 C • The board is placed on 2 supports 90mm apart (capacitor side down) • The row of capacitors is aligned with the load stressing knife Max. = 10mm • The load is applied and the deflection where the part starts to crack is recorded (Note: Equipment detects the start of the crack using a highly sensitive current detection circuit) • The maximum deflection capability is 10mm +250 C -550 C 1 hour 12mins 47 MLCC with FLEXITERM® Specifications and Test Methods BEYOND 1000 CYCLES: TEMPERATURE CYCLE TEST RESULTS 0603 10 8 % Failure % Failure 8 6 4 2 0 6 4 2 0 0 500 1000 1500 2000 2500 3000 0 1206 10 500 1000 1500 2000 2500 3000 1210 10 8 % Failure 8 % Failure 0805 10 6 4 2 0 6 4 2 0 0 500 1000 1500 2000 2500 3000 0 Soft Term - No Defects up to 3000 cycles 500 1000 1500 2000 2500 3000 AEC-Q200 specification states 1000 cycles compared to AVX 3000 temperature cycles. FLEXITERM® TEST SUMMARY • Qualified to AEC-Q200 test/specification with the exception of using AVX 3000 temperature cycles (up to +150°C bend test guaranteed greater than 5mm). • FLEXITERM® provides improved performance compared to standard termination systems. WITHOUT SOFT TERMINATION Major fear is of latent board flex failures. 48 • Board bend test improvement by a factor of 2 to 4 times. • Temperature Cycling: – 0% Failure up to 3000 cycles – No ESR change up to 3000 cycles WITH SOFT TERMINATION Far superior mechanical performance. Generally open failure mode beyond 5mm flexure. MLCC with FLEXITERM® X8R Dielectric Capacitance Range SIZE 271 331 471 681 102 152 182 222 272 332 392 472 562 682 822 103 123 153 183 223 273 333 393 473 563 683 823 104 124 154 184 224 274 334 394 474 684 824 105 Cap (pF) Cap (μF) 0603 25V G G G G G G G G G G G G G G G G G G G G G G G G G G WVDC 270 330 470 680 1000 1500 1800 2200 2700 3300 3900 4700 5600 6800 8200 0.01 0.012 0.015 0.018 0.022 0.027 0.033 0.039 0.047 0.056 0.068 0.082 0.1 0.12 0.15 0.18 0.22 0.27 0.33 0.39 0.47 0.68 0.82 1 WVDC 25V SIZE Letter Max. Thickness A 0.33 (0.013) 0805 25V 50V J J J J J J J J J J J J J J J J J J J J J J J N N N N N N N N J J J J J J J J J J J J J J J J J J J J J J J N N N N N N 50V 25V 0603 C 0.56 (0.022) E 0.71 (0.028) PAPER G 0.90 (0.035) J 0.94 (0.037) 1206 50V G G G G G G G G G G G G G G G G G G G G G G G G 50V 25V 50V J J J J J J J J J J J J J J J J J J J J M M M M M M M M M M M M J J J J J J J J J J J J J J J J J J J J M M M M M M M M M M 25V 0805 K 1.02 (0.040) M 1.27 (0.050) N 1.40 (0.055) 50V 1206 P Q 1.52 1.78 (0.060) (0.070) EMBOSSED X 2.29 (0.090) Y 2.54 (0.100) Z 2.79 (0.110) = AEC-Q200 Qualified 49 MLCC with FLEXITERM® X7R Dielectric Capacitance Range 0603 101 121 151 181 221 271 331 391 471 561 681 821 102 122 152 182 222 272 332 392 472 562 682 822 103 123 153 183 223 273 333 393 473 563 683 823 104 124 154 184 224 274 334 394 474 564 684 824 105 155 185 225 335 475 106 226 0805 25V 50V 100V 200V 10V 16V 25V 50V 100V 200V J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J M M M N N N N N N N N J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J M M M N N N N N N N N J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J N N N N N N N N N N N J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J N N N N N N N N J J J J J J J J J J J J J J J J J J J M M M M M M M M N N N N N N N N N N N N J J J J J J J J J J J J J J J J J J J 16V 25V 50V 100V 200V 10V 0603 Letter Max. Thickness 50 1206 16V A 0.33 (0.013) 16V 25V 50V 100V 200V 25V 50V 100V 200V J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J M M M M M M Q Q Q J J J J J J J J J J J J J J J J J J J J J J J J J J J M M M M M M Q Q Q Q Q Q Q J J J J J J J J J J J J J J J J J J J J J J J J J P P P P P P P P Q Q Q Q J J J J J J J J J J J J J J J J J J J M M M M P Q Q Q Q Q Q Q Q Q Q Q Q Q J J J J J J J J J J J J J J J J J J J J J J J J J 16V 25V 0805 C 0.56 (0.022) E 0.71 (0.028) PAPER G 0.90 (0.035) J 0.94 (0.037) 1210 16V 50V 100V 1206 K 1.02 (0.040) M 1.27 (0.050) N 1.40 (0.055) 200V 16V K K K K K K M M P P P P P P P P P Z Z Z Z 16V 25V K K K K K K M M P P P P Q X Z Z Z Z Z Z Z 25V 1812 50V 100V K K K K K M M M P Q Q Q Q Q Q Q Q Q X Z Z Z Z Z K K K K K K M M P P P P Q X Z Z Z Z Z Z Z 50V 100V 25V 50V 100V K K K K K K K M M M X X X X X X K K K K K K K M M M X X X X X X K K K K K K K M M M X X X X X X Z Z Z Z Z K K K K K M M X X X X X Z Z Z Z Z Z Z 16V 25V 1210 P Q 1.52 1.78 (0.060) (0.070) EMBOSSED 2220 16V 50V 100V 1812 X 2.29 (0.090) Y 2.54 (0.100) Z 2.79 (0.110) 25V 50V 100V X X X X X X X X X X X X X X X X X X X X X X X X X X X Z Z Z Z 25V Z 50V 2220 100V