EKHT451VSN621MQ501
Nippon Chemi-Con KHT snap-in capacitor, 620 uF at 450 V, Ø25.4 x 50 mm, 105 °C 3000 h with high ripple for warm power stages.
The EKHT451VSN621MQ501 is a Nippon Chemi-Con KHT series snap-in aluminum electrolytic capacitor rated at 450 V with 620 uF, in a case of about 25.4 mm diameter by 50 mm long. The KHT series is a 105 °C snap-in range with a high ripple current rating and a 3000-hour endurance at 105 °C, which suits high-temperature power supplies, solar and storage inverters and industrial converters that must run reliably in a warm enclosure. A snap-in capacitor mounts directly on the printed circuit board with two or four terminals, which gives a firm mechanical and electrical connection without a clamp and simplifies assembly. The 450 V rating provides margin for a rectified high-voltage bus, and the compact case keeps the board area reasonable while still offering a substantial capacitance. The standardized terminal layout means the part drops into a common footprint, and the operating range is -40 °C to +105 °C. Typical uses include the primary bulk capacitance of a switch-mode supply, the bus of a solar inverter and the DC link of an industrial drive auxiliary stage. 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 EKHT451VSN621MQ501 is a good fit for 400 V class buses that need a 105 °C grade and a high ripple rating in a compact 25 mm can. The snap-in terminals keep the assembly simple. Keep the ripple within the rating at the expected case temperature, and space the capacitors for airflow so the 3000-hour endurance is not eroded by a hot layout.
| Parameter | Value |
|---|---|
| Capacitance | 620 uF |
| Voltage | 450 V |
| Case Size | Ø25.4 x 50 mm |
| Temperature | -40 °C to +105 °C |
| Endurance | 3000 h at 105 °C |
Application Circuits
Switch-mode power supply bulk capacitance
Reference circuits and application schematics for Switch-mode power supply bulk capacitance are available from our FAE team.
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.
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 |
|---|---|---|---|
| ETXK401VSN451MA30S | Snap-in Ø35 x 30 mm | Longer-life 400 V snap-in capacitor for lower-bus designs | View |
Complementary Part Numbers
| Model | Package | Note | Action |
|---|---|---|---|
| ERWQ351LGC152MC65U | 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 EKHT451VSN621MQ501?
It suits 400 V class buses that need a 105 °C grade and a high ripple rating in a compact case, such as switch-mode supplies, solar and storage inverters and industrial converters. The snap-in terminals mount directly on the PCB without a clamp.
Confirm the terminal layout against your footprint.
How do I mount it on the board?
The capacitor has snap-in terminals that fit the standard hole spacing, so it mounts directly with no clamp. Solder or press the terminals as the datasheet specifies, and keep the capacitor clear of the hottest components so the case stays cool.
Our FAE team can review the layout.
Is the part genuine and documented?
BeiLuo supplies factory-traceable EKHT451VSN621MQ501 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.