Looking for MLCC alternatives? Explore different solutions from SMD Film capacitors.

1. 1© KEMET Electronics. All Rights Reserved.
SMD Film Solutions
December 3, 2018
Hector Nieves
Film Capacitors
Product Manager, America
hectornieves@kemet.com

2. 2© KEMET Electronics. All Rights Reserved.
SMD Film Technology Agenda
1. KEMET SMD Film manufacturing Facility
2. Dielectric Characteristics
3. Encapsulation Types
4. Metallization Types
5. Dielectric Capabilities per Series
6. Target Series and Main Advantages
7. Applications
8. SMD Film and MLCC Comparison
9. Selection Flow Chart and Table
10. Special SMD Film and Paper Technologies
11. Competitors
12. Summary

3. 3© KEMET Electronics. All Rights Reserved.
Pontecchio, Italy, Film Innovation Center
and SMD Film Manufacturing Facility
General Information
• Opened in Aug 2013
• R&D: 350 m2
• Laboratory 800m2
• >50 employees
Capabilities
• Material Evaluation
• New Product Development
• New Process & Equipment
• Sampling and Testing
• WMT Laboratory Certification
Tasks
• New Platform & Product Dev.
• Plant Technology Support
• Promote Technology Transfer
• Customer Support
• New Design Tools Implementation

4. 4© KEMET Electronics. All Rights Reserved.
Film and Paper Dielectrics Through Hole (THT)
and Surface Mounted (SMD) Technologies
PP
THT
Paper
THT
SMD
PET
THT
SMD
PEN
THT
SMD
PPS
THT
SMD
PP PAPER PET PEN PPS
Polypropylene Impregnated
Cellulose
Polyethylene
Terephthalate
Polyethylene
Naphthalate
Polyphenylene
Sulfide

5. 5© KEMET Electronics. All Rights Reserved.
5© KEMET Electronics. All Rights Reserved.
PET
• Highest Dielectric Constant in
Film Technology (3.3)
– Volumetric Efficiency
• Excellent Self-Healing Property
Applications
• DC & AC applications
• By Passing
• Blocking
• Coupling and Decoupling
• Timing and Filters
PEN
• High Temperature capability
• Relative High Dielectric
Constant 3.0 and Strength
• High temperature Dielectric
Applications
• DC applications
– similar to X7R ceramic
• By-pass
• Blocking
• Coupling and Decoupling
• Timing and Filters
PPS
• Low Loses
• Wide operating temperature
ranges up to 170 °C (extended)
• High Stability in Temperature
Applications
• DC applications
– Similar to C0G MLCC
• High temperature
• Timing and Filters
• Oscillating Circuits
Main Dielectric Characteristic

6. 6© KEMET Electronics. All Rights Reserved.
Unencapsulated and
Encapsulated SMD Film
Unencapsulated
Single & Jumbo Chip
• Good solder withstand
• Acceptable environmental performance
in standard applications
• Small physical size
• Potentially lower cost in small sizes
Encapsulated
Single Chip
• Best Solder withstand
• Better environmental performance
– Resistance to moisture and chemicals
• Large physical size (vertical mounting is viable)
• Potentially higher cost in small sizes

7. 7© KEMET Electronics. All Rights Reserved.
Vertical Mounting of Encapsulated Film Capacitor
Example: GMC, 1.0µF; 100V; 6560
Vertical Mounting
helps to reduce the
surface area in the
PCB for the
capacitor chip
• Chip Size
6560
• footprint
• 16.5 mm
• 15 mm
• 247mm2
Horizontal
Mounting
• Chip Size
6528
• footprint
• 16.5 mm
• 7 mm
• 116 mm2
Vertical
Mounting

8. 8© KEMET Electronics. All Rights Reserved.
SMD Film Encapsulation Types
and Focus Series LDE and F161
Dielectric
Encapsulation PET PEN PPS Key Notes
Encapsulated F161
GMC
GPC
SMC
SPC
Protection against
washing processes
and harsh
environment
applications
Unencapsulated
(Naked)
JSN LDE LDB
Best Volumetric
Efficient
Applications
requiring
miniaturization

9. 9© KEMET Electronics. All Rights Reserved.
SMD Film Metallization Types and Applications
Dielectric
Metallization
Single Metallized
Single Dielectric layer
Double Metallized
Single Dielectric Layer
PET F161, JSN ---
PEN GMC, LDE GPC
PPS SMC, LDB SPC
• For High miniaturization and
volumetrically efficient designs.
• General DC and AC applications.
• For High frequency,
current and high dv/dt
requirements. Example: High
Speed Circuits; Pulse; Snubber.

10. 10© KEMET Electronics. All Rights Reserved.
Key Comparisons of Dielectrics
Properties and Capabilities (per Series)
Range Self-Healing Temperature Stability
Excellent PET
(F161, JSN)
PPS
(LDB, SMC, SPC)
PPS
(LDB, SMC, SPC)
Good PEN
(LDE, GMC, GPC)
PEN
(LDE, GMC, GPC)
PET
(F161, JSN)
Fair PPS
(LDB, SMC, SPC)
PET
(F161, JSN)
PEN
(LDE, GMC, GPC)

11. 11© KEMET Electronics. All Rights Reserved.
SMD Film Capacitor Applications
Applications requiring High Reliability, Performance and Stability
11
Automotive
Telecommunication & Data Network
Industrial Power Converters
Instrumentation and Audio
Sensors

12. 12© KEMET Electronics. All Rights Reserved.
Typical SMD Film Capacitor
Applications and Recommended Series
• Filtering: F161
• Decoupling and Coupling Circuits: LDE, F161
• Timing circuits Stable in Temperature: SMC
• Oscillating Circuits Stable in Frequency: SMC
• Bulk (DC-Link) in Low Power Applications: F161, JSN
12

13. 13© KEMET Electronics. All Rights Reserved.
Capacitance Vs. Temperature
Polyester (PEN) Vs. Class II (X7R) MLCC
1 KHz 100 KHz
-20%
-15%
-10%
-5%
0%
5%
-55 -30 -5 20 45 70 95 120 145
T [°C]
X7R
PEN
-20%
-15%
-10%
-5%
0%
5%
-55 -30 -5 20 45 70 95 120 145
T [°C]
PEN
X7R

14. 14© KEMET Electronics. All Rights Reserved.
SMD Film vs Ceramic Capacitance Stability
Capacitance Change vs. Temperature Capacitance Change vs. DC Bias Voltage
DC Bias effect in X7R can reduce the capacitance
significantly and allow for less C values of a film
solution
Example: 0.33 uF Film SMD may be a solution for a
1uF X7R MLCC (depending of DC bias, case size)
• Polyester PET and PEN film have a positive
capacitance drift per temperature increase.
• X7R MLCC has a negative capacitance drift
• PPS film is very stable and close to C0G
performance

15. 15© KEMET Electronics. All Rights Reserved.
Summary SMD Film and SMD MLCC
• SMD Film Pros
– Self Healing Capability
– No (DC, AC) Voltage dependence of Capacitance and DF
– No Susceptible to Flex-Crack
– High Stability in Temperature and Frequency
– Low Aging Effect on Capacitance Value
– Low Equivalent Series Resistance (ESR)
– No Piezoelectric Noise Effect as Class II and III (X7R, X5R, Z5U, Y5V)
– Lower Self-Heating in AC applications vs. Class III and III MLCC
– Typical failure mode at the end of life is Open
– Shorter Lead-Time
• SMD Film Cons
– Less volumetric efficiency
– No available on small cases or low voltages (≥1206; ≥ 50 VDC)
– Requires adjustment of the Reflow process profile (lower temperature)
– Can be susceptible to moisture or harsh environments (unencapsulated versions)
– Higher on price on the small case sizes
– Lower dV/dt

16. 16© KEMET Electronics. All Rights Reserved.
Film Chip Selection
for Crossing MLCC
Potential
SMD FilmNo SMD Film
Available
Y
Design
Requirements
1206 ≤ Size?
NO
16 Vdc ≤ V
V ≤ 1,000 Vdc?
YES YESYES
NO NO
1 nF ≤ C
C ≤ 12 μF?

17. 17© KEMET Electronics. All Rights Reserved.
SMD Film Portfolios
Series F161 LDE GMC GPC LDB SMC SPC
Dielectric PET PEN PEN PEN PPS PPS PPS
Images
Type Encapsulated Unencapsulated Encapsulated Encapsulated Unencapsulated Encapsulated Encapsulated
Capacitance
(μF)
0.01
12
0.01
4.7
0.001
5.6
0.00047
1.0
0.0033
0.1
0.001
3.3
0.00047
0.68
Best
Tolerance %
±5% ±5% ±5% ±10% ±2% ±2% ±2%
Voltage
(VDC)
50
630
50
1,000
50
630
63
1,000
16
50
50
400
100
630
EIA
Size
2220
6560
1206
6054
2220
6560
2824
6560
1206
1812
2220
6560
2824
6560
Temperature
(C°)
-55 °C
+125 °C
-55 °C
+125 °C
-55 °C
+125 °C
-55 °C
+125 °C
-55 °C
+125 °C
-55 °C
+125 °C
-55 °C
+125 °C

18. Special SMD
Film Series!

19. 19© KEMET Electronics. All Rights Reserved.
Jumbo Stacked Naked SMD Film Capacitor (JSN)
• Metallized PET
• Tinned copper lead frames
• High Current Capability and Resonance
Frequency (Low ESR and ESL)
• High Frequency SMPS
• DC/DC and AC/DC Converters
– Input and Output Filter
– DC-Link capacitor
• Automotive Rated (AEC-Q200)
Dielectric Type
Capacitance
(μF)
Best tolerance
%
Voltage
(VDC)
EIA
Size
Temperature
(C°)
PET Unencapsulated
5.6
82
±10%
63
250
6080
61115
-55 °C
+125 °C

20. 20© KEMET Electronics. All Rights Reserved.
SMP253 Metallized Impregnated Paper
Class Y2, 250 VAC
• Electromagnetic Interference Suppressor in
Y2 Applications. Line and Neutral to Ground
• ENEC, UL tested, pending Approval
• Good resistance to ionization
• High dV/dt Capability
• Excellent Stability and Reliability
Dielectric Type
Capacitance
(μF)
Best tolerance
%
Voltage
(VAC)
EIA
Size
Temperature
(C°)
Paper Encapsulated
0.001
0.0047
±10% 250 5045
-40 °C
+100 °C

21. 21© KEMET Electronics. All Rights Reserved.
SMD Film Capacitor Manufacturers
KEMET
AVX
WIMA
NC NIC Components Corp.
Panasonic
ITW Paktron
Hitachi
Cornell Dubilier
Electronic Concepts Inc.
SAMWHA Capacitor Co.
Suntan Technology
KEMET is one of the world leader
manufacturers offering the largest
portfolio of SMD Film Capacitors

22. 22© KEMET Electronics. All Rights Reserved.
SMD Film Technology – Takeaway!
• Alternative solution for
replacing MLCC
• Excellent Solution for
applications requiring
– High reliability
– High Stability
– High Performance
• No availability issues
• Price competitiveness
• Few competitors