189-227µF 250V AC Motor Capacitor
Part Number: MS250V189-227
189-227µF • 250V AC • 85°C • Motor Start Capacitor
Capacitance
189-227µF
Voltage
250V AC
Tolerance
±±20%
Temp Rating
85°C
Mounting
can
Dielectric
electrolytic
$38.85 each × 1
About the 189-227µF 250V AC Motor Capacitor
Motor Start Capacitors capacitor. Capacitance: 189-227µF, Voltage: 250V AC. Part Number: MS250V189-227.
Applications for 189-227µF 250V AC Motor Start Capacitors
Typical design scenarios where the MS250V189-227 (189-227µF / 250V AC) is specified:
Motor Drives & VFDs
DC bus filtering for variable-frequency drives operating at 250V AC bus voltage with 189-227µF bulk storage
UPS & Power Supplies
Energy hold-up and output filtering in uninterruptible power supplies and high-voltage DC-DC converters
PCB-Mount Circuits
Through-hole and mixed-technology assemblies in prototype, low-volume, and field-repairable designs
HVAC & Motor Systems
Single-phase motor start/run, compressor circuits, and fan motors in commercial HVAC equipment
Need a Replacement for MS250V189-227?
189-227µF · 250V AC · can
Our engineers can cross-reference this part to find a compatible replacement that meets or exceeds the original specifications — with full CoC and traceability documentation.
Technical Specifications
Complete specifications for MS250V189-227
Why Choose This Motor Start Capacitor?
- 250V AC voltage rating with recommended 20% derating for maximum service life in power circuits
- Part of the MS series — cross-reference available for equivalent parts from other manufacturers
- 100% electrically tested before shipment for guaranteed in-spec performance
- Ships same-day from US warehouse when ordered before 3 PM EST
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Our capacitor specialists can help with selection, cross-reference, and application questions.
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Looking for an Equivalent?
We can help cross-reference MS250V189-227 with alternative part numbers.
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Frequently Asked Questions
Common questions about MS250V189-227 and motor start capacitors
What applications use a 189-227µF 250V AC motor start capacitor?
A 189-227µF 250V AC motor start capacitor is commonly used in VFD DC bus filtering, UPS energy storage, industrial power supplies, and welding equipment. The high voltage and capacitance combination provides the energy storage needed for power conversion stages operating from rectified mains or three-phase supplies.
Can the MS250V189-227 handle high-temperature environments?
The MS250V189-227 is rated for 85°C, which covers standard commercial and light-industrial environments. For installations in enclosed cabinets or hot climates where ambient temperatures exceed 65°C, consider selecting a 105°C-rated alternative for additional thermal margin.
What is the recommended PCB footprint for the MS250V189-227?
The MS250V189-227 uses can mounting. Refer to the manufacturer datasheet for the recommended land pattern. For through-hole parts, ensure the drill diameter is 0.2–0.3mm larger than the lead diameter for reliable hand or wave soldering.
What capacitors can replace the MS250V189-227?
Cross-referencing the MS250V189-227 requires matching capacitance (189-227µF), voltage (250V AC), temperature rating (85°C), and physical dimensions. ESR and ripple current ratings must also meet or exceed the original spec for reliable operation. Contact our technical team at 800-731-1433 for verified cross-reference options — we maintain compatibility data across major manufacturers.
Should I derate the voltage when using the MS250V189-227?
Yes. Industry best practice is to operate capacitors at 60–80% of their rated voltage. For the MS250V189-227 rated at 250V AC, this means designing your circuit to keep the applied voltage below 200V under all conditions including transients. Voltage derating significantly extends capacitor life — each 10% reduction in applied voltage can roughly double the expected service life for electrolytic types.
What is the lead time for the MS250V189-227?
In-stock items ship same-day when ordered before 3 PM EST, with standard delivery of 2–5 business days within the continental US. If the MS250V189-227 shows as out of stock, our sourcing team can typically locate high-voltage motor start capacitors within 1–2 weeks through our manufacturer and distributor network. Contact us for expedited options or large-quantity pricing.
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