ETXK401VSN451MA30S
Nippon Chemi-Con TXK snap-in capacitor, 450 uF at 400 V, low-profile Ø35 x 30 mm, 105 °C with 8000-hour long life.
The ETXK401VSN451MA30S is a Nippon Chemi-Con TXK series snap-in aluminum electrolytic capacitor rated at 400 V with 450 uF, in a low-profile case of about 35 mm diameter by 30 mm long. The TXK series is a 105 °C snap-in range with an 8000-hour endurance at 105 °C, which is among the longest lives in the snap-in class and makes it a strong choice for designs that must run for many years, such as solar inverters, industrial power conversion and long-life power supplies. A snap-in capacitor mounts directly on the printed circuit board with two or four terminals, so assembly is simple and no clamp is needed, and the wide but shallow case suits boards with limited vertical space. The 400 V rating provides margin for a rectified high-voltage bus, and the standardized terminal layout drops into a common footprint. The operating range is -40 °C to +105 °C. Typical uses include the DC link of an industrial converter, the bus of a solar or storage inverter and the bulk capacitance of a long-life supply. Every capacitor BeiLuo ships is factory-traceable and includes an import declaration, a certificate of origin and a RoHS compliance file. Our FAE team helps you size capacitance and ripple and estimate lifetime from the case temperature.
FAE Professional Review
The ETXK401VSN451MA30S is the long-life choice for 400 V class designs, with an 8000-hour endurance at 105 °C that suits outdoor and industrial equipment where servicing is difficult. The low-profile 35 x 30 mm can fits under a low enclosure lid. Keep the ripple within the rating and the case cool to realize the full life.
| Parameter | Value |
|---|---|
| Capacitance | 450 uF |
| Voltage | 400 V |
| Case Size | Ø35 x 30 mm |
| Temperature | -40 °C to +105 °C |
| Endurance | 8000 h at 105 °C |
Application Circuits
Solar and storage inverter bus
Reference circuits and application schematics for Solar and storage inverter bus are available from our FAE team.
Industrial converter DC link
Reference circuits and application schematics for Industrial converter DC link are available from our FAE team.
Long-life power supplies
Reference circuits and application schematics for Long-life power supplies are available from our FAE team.
Need a reference schematic or design review? Our FAE engineers can share verified circuits and layout guidance for this part.
Related Documents
Alternative Part Numbers
| Model | Package | Note | Action |
|---|---|---|---|
| EKHT451VSN621MQ501 | Snap-in Ø25.4 x 50 mm | Higher-capacitance 450 V snap-in capacitor in a taller case | View |
Complementary Part Numbers
| Model | Package | Note | Action |
|---|---|---|---|
| ERWQ501LGC681MC65U | Screw terminal Ø50 x 65 mm | Screw-terminal capacitor for a high-current DC link | View |
| EKMH250VSN183MR40T | Snap-in Ø30 x 42 mm | High-capacitance snap-in for a low-voltage rail | View |
Recommended Complementary Products
Frequently Asked Questions
What projects suit the ETXK401VSN451MA30S?
It suits 400 V class designs that must run for many years, such as solar inverters, industrial converters and long-life power supplies, where the 8000-hour endurance at 105 °C is a real advantage. The low-profile 35 x 30 mm case fits shallow enclosures.
The snap-in terminals mount directly on the PCB.
How do I realize the long life?
The 8000-hour endurance is specified at 105 °C and rated ripple; keeping the case cooler or the ripple lower extends the life further, because electrolytic lifetime roughly doubles for every 10 °C reduction in core temperature. Space the capacitors for airflow and keep them away from hot components.
Our FAE team can estimate the lifetime at your conditions.
Is the part genuine and documented?
BeiLuo supplies factory-traceable ETXK401VSN451MA30S capacitors with an import declaration, certificate of origin and RoHS file on every order. Stock is normally available.
Request a sample to validate the part before production.