46
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.
MLCC with FLEXITERM®
General Specifications
APPLICATIONS
High Flexure Stress Circuit Boards
• e.g. Depanelization: Components near edges
of board.
Variable Temperature Applications
• Soft termination offers improved reliability per-
formance in applications where there is tem-
perature variation.
• e.g. All kind of engine sensors: Direct
connection to battery rail.
Automotive Applications
• Improved reliability.
• Excellent mechanical performance and
thermo mechanical performance.
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.
HOW TO ORDER
0805
Style
0603
0805
1206
1210
1812
2220
5
Voltage
6 = 6.3V
Z = 10V
Y = 16V
3 = 25V
5 = 50V
1 = 100V
2 = 200V
2
Packaging
2 = 7" reel
4 = 13" reel
C
Dielectric
C = X7R
F = X8R
104
Capacitance
Code (In pF)
2 Sig Digits +
Number of Zeros
e.g., 104 = 100nF
K
Capacitance
Tolerance
J = ±5%*
K = ±10%
M = ±20%
*≤1μF only
A
Special Code
A = Std. Product
Z
Terminations
Z = FLEXITERM®
For FLEXITERM®
with Tin/Lead
termination see
AVX LD Series
A
Failure
Rate
A=Commercial
4 = Automotive
NOTE: Contact factory for availability of Tolerance Options for Specific Part Numbers.
47
MLCC with FLEXITERM®
Specifications and Test Methods
PERFORMANCE TESTING BOARD BEND TEST PROCEDURE
According to AEC-Q200
BEND TESTPLATE
CONTROL PANEL
CONNECTOR
DIGITAL
CALIPER
MOUNTING
ASSEMBLY
LOADING
KNIFE
CONTROL
PANEL
BOARD BEND TEST RESULTS
AEC-Q200 Vrs AVX FLEXITERM®Bend Test
12 0603
10
8
6
4
2
0
NPO X7R X7R soft term
12 1206
Substrate Bend (mm) Substrate Bend (mm)
Substrate Bend (mm)Substrate Bend (mm)
10
8
6
4
2
0
NPO X7R X7R soft term
12 0805
10
8
6
4
2
0
NPO X7R X7R soft term
12
1210
10
8
6
4
2
0
NPO X7R X7R soft term
TEMPERATURE CYCLE TEST PROCEDURE
1 hour 12mins
+1250 C
+250 C
-550 C
AVX ENHANCED SOFT
TERMINATION BEND TEST
PROCEDURE
Bend Test
The capacitor is soldered to the printed circuit
board as shown and is bent up to 10mm at
1mm per second:
Typical bend test results are shown below:
Style Conventional Termination FLEXITERM®
0603 >2mm >5mm
0805 >2mm >5mm
1206 >2mm >5mm
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:
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 Procedure as per AEC-Q200:
Sample size: 20 components
Span: 90mm Minimum deflection spec: 2 mm
• Components soldered onto FR4 PCB (Figure 1)
• Board connected electrically to the test equipment
(Figure 2)
Fig 1 - PCB layout with electrical connections
Fig 2 - Board Bend test
equipment
Test Temperature Profile (1 cycle)
TABLE SUMMARY
• The board is placed on 2 supports 90mm
apart (capacitor side down)
• The row of capacitors is aligned with the
load stressing knife
• 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
Max. = 10mm
Max. = 10mm
90mm
48
% Failure
10
8
6
4
2
0
0 500 1000 1500
0603
2000 2500 3000
% Failure
10
8
6
4
2
0
0 500 1000 1500
1206
2000 2500 3000
% Failure
10
8
6
4
2
0
0 500 1000 1500
0805
2000 2500 3000
% Failure
10
8
6
4
2
0
0 500 1000 1500
1210
2000
Soft Term - No Defects up to 3000 cycles
2500 3000
BEYOND 1000 CYCLES: TEMPERATURE CYCLE TEST RESULTS
AEC-Q200 specification states
1000 cycles compared to AVX
3000 temperature cycles.
MLCC with FLEXITERM®
Specifications and Test Methods
FLEXITERM® TEST SUMMARY
WITHOUT SOFT TERMINATION WITH SOFT TERMINATION
Major fear is of latent board flex failures. Far superior mechanical performance.
Generally open failure mode beyond
5mm flexure.
• 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.
• 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
49
MLCC with FLEXITERM®
X8R Dielectric Capacitance Range
Letter ACEGJKMNPQXYZ
Max. 0.33 0.56 0.71 0.90 0.94 1.02 1.27 1.40 1.52 1.78 2.29 2.54 2.79
Thickness (0.013) (0.022) (0.028) (0.035) (0.037) (0.040) (0.050) (0.055) (0.060) (0.070) (0.090) (0.100) (0.110)
PAPER EMBOSSED
SIZE 0603 0805 1206
WVDC
25V 50V 25V 50V 25V 50V
271 Cap 270 G G
331 (pF) 330 G G J J
471 470 G G J J
681 680 G G J J
102 1000 G G J J J J
152 1500 G G J J J J
182 1800 G G J J J J
222 2200 G G J J J J
272 2700 G G J J J J
332 3300 G G J J J J
392 3900 G G J J J J
472 4700 G G J J J J
562 5600 G G J J J J
682 6800 G G J J J J
822 8200 G G J J J J
103 Cap 0.01 G G J J J J
123 (μF) 0.012 G G J J J J
153 0.015 G G J J J J
183 0.018 G G J J J J
223 0.022 G G J J J J
273 0.027 G G J J J J
333 0.033 G G J J J J
393 0.039 G G J J J J
473 0.047 G G J J J J
563 0.056 G N N M M
683 0.068 G N N M M
823 0.082 N N M M
104 0.1 N N M M
124 0.12 N N M M
154 0.15 N N M M
184 0.18 N M M
224 0.22 N M M
274 0.27 MM
334 0.33 MM
394 0.39 M
474 0.47 M
684 0.68
824 0.82
105 1
WVDC
25V 50V 25V 50V 25V 50V
SIZE 0603 0805 1206
= AEC-Q200 Qualified
50
MLCC with FLEXITERM®
X7R Dielectric Capacitance Range
0603 0805 1206 1210 1812 2220
16V 25V 50V 100V 200V 10V 16V 25V 50V 100V 200V 16V 25V 50V 100V 200V 16V 25V 50V 100V 16V 25V 50V 100V 25V 50V 100V
101
121
151
181
221
271 J J J J J J
331 J J J J J J J J J J J
391 J J J J J J J J J J J
471 J J J J J J J J J J J
561 J J J J J J J J J J J
681 J J J J J J J J J J J
821 J J J J J J J J J J J
102 J J J J J J J J J J J J J J J J
122JJJJ JJJJJJJJJJJ
152JJJJ JJJJJJJJJJJ
182JJJJ JJJJJJJJJJJ
222JJJJ JJJJJJJJJJJ
272JJJJ JJJJJJJJJJJ
332JJJJ JJJJJJJJJJJ
392JJJJ JJJJJJJJJJJ
472JJJJ JJJJJJJJJJJ
562JJJJ JJJJJJJJJJJ
682JJJJ JJJJJJJJJJJ
822JJJJ JJJJJJJJJJJ
103JJJJ JJJJJJJJJJJ
123 J J J J J J J M J J J J J
153 J J J J J J J M J J J J J
183 J J J J J J J M J J J J J
223 J J J J J J J M J J J J J K
273 J J J J J J J M J J J J J K
333 J J J J J J J M J J J J J K
393 J J J J J J J M J J J M J K
473 J J J J J J J M J J J M J K
563 J J J J J J J N J J J M J K K K M K K K K
683 J J J J J J J N J J J M J K K K M K K K K
823 J J J J J J J N J J J P J K K K M K K K K
104 J J J J J J J N J J J Q J K K K P K K K K X X X
124 J J J N N J J P Q K K K Q K K K K
154 M M N N N J J P Q K K K Q K K K M X X X
184 M M N N N J M P Q M M M Q K K K M
224 M M N N N J M P Q M M M Q M M M X X X X
274 N N N N N J M P Q P P P Q M M M X
334 N N N N N J M P Q P P P Q M M M X X X X
394 N N N N N M M P Q P P P Q X X X X
474 N N N N N M M P Q P P P Q X X X X X X X
564 N N N M Q Q Q P Q Q Q X X X Z
684 N N N M Q Q Q P X X X X X X Z X X X
824 N N N M Q Q Q P Z Z Z X X X Z
105 N N N M Q Q Q P Z Z Z X X X Z X X X
155 QQ PZZ Z ZZX XX
185 QQ ZZZZ ZZ
225 QQ ZZZ Z ZZX XX
335 ZZZ Z Z
475 ZZZ Z Z
106 ZZ
226 Z
16V 25V 50V 100V 200V 10V 16V 25V 50V 100V 200V 16V 25V 50V 100V 200V 16V 25V 50V 100V 16V 25V 50V 100V 25V 50V 100V
0603 0805 1206 1210 1812 2220
Letter ACEGJKMNPQXYZ
Max. 0.33 0.56 0.71 0.90 0.94 1.02 1.27 1.40 1.52 1.78 2.29 2.54 2.79
Thickness (0.013) (0.022) (0.028) (0.035) (0.037) (0.040) (0.050) (0.055) (0.060) (0.070) (0.090) (0.100) (0.110)
PAPER EMBOSSED
