B43644A9107M007
TDK EPCOS B43644 snap-in capacitor, 100 uF at 400 V, Ø22 x 25 mm, 105 °C with 5000-hour long life for power supplies and inverters.
The B43644A9107M007 is a TDK EPCOS B43644 series snap-in aluminum electrolytic capacitor rated at 400 V with 100 uF, in a compact case of about 22 mm diameter by 25 mm long. The B43644 series is an ultra-compact, long-life snap-in family rated 105 °C with an endurance of 5000 hours, designed for frequency converters, power supplies and household appliance drives that must run reliably in a warm enclosure. A snap-in capacitor mounts directly on the printed circuit board with two or three terminals, which gives a firm connection without a clamp and simplifies assembly, and the 400 V rating provides margin for a rectified high-voltage bus. The standardized case grid means the part drops into a common footprint, and the terminal can be supplied in short or standard lengths with PVC or PET insulation. 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 B43644A9107M007 is a good fit for 400 V class boards that need a 105 °C grade and long life in a compact 22 mm can. The snap-in terminals keep the assembly simple and the standardized grid makes second-sourcing easy. Keep the ripple within the rating at the expected case temperature and space the capacitors for airflow.
| Parameter | Value |
|---|---|
| Capacitance | 100 uF |
| Voltage | 400 V |
| Case Size | Ø22 x 25 mm |
| Temperature | -40 °C to +105 °C |
| Endurance | 5000 h at 105 °C |
Application Circuits
Switch-mode power supply bulk
Reference circuits and application schematics for Switch-mode power supply bulk 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 drive auxiliary stage
Reference circuits and application schematics for Industrial drive auxiliary stage 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 |
|---|---|---|---|
| B43644A5686M007 | Snap-in Ø22 x 25 mm | 450 V 68 uF version for a higher-voltage bus | View |
Complementary Part Numbers
| Model | Package | Note | Action |
|---|---|---|---|
| B43713A6478M000 | Screw terminal Ø90 x 145.5 mm | Screw-terminal capacitor for the main DC link | View |
| B32654A0224J000 | Snubber capacitor for the IGBT stage | View |
Recommended Complementary Products
Frequently Asked Questions
What projects suit the B43644A9107M007?
It suits 400 V class boards that need a 105 °C grade and a long life in a compact case, such as switch-mode supplies, solar and storage inverters and industrial drives. 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 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 B43644A9107M007 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.