SP-Cap

SP-Cap capacitors feature low ESR, low ESL, long life span, small size, low profile, and high characteristic stability.

Panasonic Recommends SP-Cap High Reliability Series (JX/KX/TX) for AI servers, Switches, Routers & Base station

The new trend of AI servers, switches, router and base stations are setting new requirements for passive components to deliver high reliability and long endurance. Panasonic is responding to such trend by offering components that can be used in applications with constant high load. Panasonic SP-Cap JX/KX/TX series are the ones fulfilling such demand.
Discover more

SP-Cap - conductive polymer aluminum electrolytic capacitors

SP-Caps are surface mount aluminium electrolytic capacitors that use a conductive polymer as their electrolyte material.

SP-Caps are primarily used as input and output capacitors for DC/DC converters due to their ultra-low ESR values.

Panasonic SP-Caps offer excellent performance for applications that require moderate to high capacitance and voltage values at low cost.  

Our top products

SP-Cap™ TZ series
(NEW) Polymer aluminium capacitors

SP-Cap™ TZ series

- Endurance 135°C, 5500 h  - Super-low ESR (down to 3mohm) - 2V (560uF)
SP-Cap™ TX series
(NEW) Polymer aluminium capacitors

SP-Cap™ TX series

- Endurance 135°C, 5500 h - Super-low ESR (down to 3mohm) - 2V to 6.3V (up to 470uF)
SP-Cap™ KX series
Polymer aluminium capacitors

SP-Cap™ KX series

- Endurance 125°C 5500 h - Low ESR (9mΩ) - Damp heat 85°C 85％ 1000 h
SP-Cap™ JX series
Polymer aluminium capacitors

SP-Cap™ JX series

- Endurance 125°C 3000 h - Ultra-Low ESR (3mΩ) - Damp heat 85°C 85％ 1000 h

More available product lines

SP-Cap™ JZ series

- Endurance 125 ℃ 3000 h
- Damp heat 85℃ 85％ 1000 h
- Low ESR (3 to 9 mΩ)

SP-Cap™ KZ series

- Endurance 125 ℃ 5500 h
- Damp heat 85℃ 85％ 1000 h
- Low ESR (3 to 9 mΩ)

SP-Cap™ SX series

- High capacitance (560µF max.)
- Low ESR (4.5mΩ to 9mΩ)

SP-Cap™ GX series

- High capacitance (560µF max.)
- Super-low ESR (3mΩ max.)

SP-Cap™ CX series

- Low profile (1.1mm to 1.9mm)
- High ripple current (5.6A rms max.)

SP-Cap™ CT series

- Low profile (1.1mm to 1.9mm)
- High ripple current (5.6A rms max)

SP-Cap™ SR series

- Low profile (1mm max.)
- Low ESR (4.5mΩ to 9mΩ)

SP-Cap™ LR series

- Low profile (1mm max.)
- Low ESR (4.5mΩ to 9mΩ)
- Low ESL (3 terminals)

SP-Cap™ SS series

- Low profile (1.1mm)
- Low ESR (6mΩ)

SP-Cap™ ST series

- Low profile (1.4mm)
- Low ESR (6mΩ)

SP-Cap™ LS series

- Low profile (1.1mm)
- Low ESR (6mΩ)
- Low ESL (3 terminals)

SP-Cap™ LT series

- Low profile (1.4mm)
- Low ESR (6mΩ)
- Low ESL (3 terminals)

SP-Cap™ LX series

- High capacitance (560µF max.)
- Low ESR (4.5, 6mΩ)
- Low ESL (3 terminals)

SP-Cap™ HX series

≤125°C; 1000 hours guaranteed

SP-Cap™ CY series

≤85℃; 2000 hours guaranteed

SP-Cap™ SY series

≤85℃; 2000 hours guaranteed

SP-Cap™ CS series

- Low profile (1.1mm to 1.9mm)
- High ripple current (5.6A rms max)

SP-Cap™ GY series

- Super-low ESR (3mΩ max.)
- Large capacitance (820μF max.)
- High ripple current (10.2A rms max.)

Download our promotion documents

Name File type Size Date Language
PDF Polymer Capacitors: Speed up your design – The next stage of low ESR Flyer 1 MB 23.04.2025 English
PDF SOS – MLCC to Panasonic Polymer Series Flyer 440 KB 17.11.2020 English
PDF Products Catalog (SP-Cap) Catalog 10 MB 19.03.2025 English
PDF SP-Cap Polymer Capacitors: GY Series Flyer, Fighting card 761 KB 08.07.2024 English
PDF SP-Cap Polymer Capacitors: JX Series Flyer, Fighting card 1 MB 08.07.2024 English
PDF SP-Cap Polymer Capacitors: KX & TX Series Flyer, Fighting card 875 KB 10.09.2024 English
PDF SP-Cap High Reliability Series_JX_KX_TX.pdf 398 KB 13.02.2025 English

Panasonic polymer capacitors: an alternative to MLCCs & tantalum capacitors

Electrolytic capacitors with conductive polymer technology meet the needs of a wide range of electronic applications

SP-Cap, POSCAP, OS-CON, and hybrid capacitors use a highly conductive polymer to achieve low equivalent series resistance(ESR), excellent noise reduction capability and ideal frequency characteristics.

Design support for capacitors

Simulation data libraries
Tools

Simulation data libraries

Equivalent circuit models and S-parameter data can be downloaded for each individual item.
Characteristic viewer
Tools

Characteristic viewer

This tool presents various characteristics of a selected part using a graph of the operating frequency, temperature etc.
CAD data
CAD

CAD data

CAD data can be download. (3D STEP, 3D PDF)
Capacitor selection tool
Tools

Capacitor selection tool

Download the tool here, which displays the characteristics, like ESR, ripple current, capacitance, needed for a capacitor and an automated selection.
LC simulator
Tools

LC simulator

Simulates attenuation requirements when configuring an LC filter using a power inductor and aluminium electrolytic capacitors.
Cross reference search by part number
Tools

Cross reference search by part number

Searching part numbers to find alternatives from Panasonic Industry Design support for inductors
Hybrid/Aluminum Electrolytic Capacitor estimated lifetime calculation tool
Tools

Hybrid/Aluminum Electrolytic Capacitor estimated lifetime calculation tool

The capacitor life estimation tool simulates the expected lifespan of a capacitor based on input parameters such as operating hours, temperature, and other factors.
Film capacitor estimated lifetime calculation tool
Tools

Film capacitor estimated lifetime calculation tool

The capacitor life calculation tool simulates the estimated lifespan of a capacitor based on input parameters such as operating voltage, wall surface temperature, and more.

Find the optimal product for your project by selecting attributes and filter criteria
Go to product finder

Servo Productfinder