1.0µF 630V DC Polyester Film Capacitor
Part Number: QXJ2J105
1.0µF • 630V DC • 85°C • Film Capacitor
Capacitance
1.0µF
Voltage
630V DC
Tolerance
±±20%
Temp Rating
85°C
Mounting
radial
Dielectric
polyester
$22.55 each × 1
About the 1.0µF 630V DC Polyester Film Capacitor
Polyester Film capacitor. 1.0µF, 630V DC. 85°C rated.
Applications for 1.0µF 630V DC Film Capacitors
Typical design scenarios where the QXJ2J105 (1.0µF / 630V DC) is specified:
Power Conversion
Snubber circuits, voltage multipliers, and power factor correction stages at 630V DC operating voltage
Industrial Controls
Relay suppression, arc quenching, and EMI filtering in industrial switchgear and control panels
PCB-Mount Circuits
Through-hole and mixed-technology assemblies in prototype, low-volume, and field-repairable designs
Precision & Timing
Oscillator circuits, sample-and-hold, and measurement instruments requiring stable capacitance
Need a Replacement for QXJ2J105?
1.0µF · 630V DC · radial
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 QXJ2J105
Why Choose This Film Capacitor?
- 630V DC voltage rating with recommended 20% derating for maximum service life in power circuits
- Part of the QXJ 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 QXJ2J105 with alternative part numbers.
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Frequently Asked Questions
Common questions about QXJ2J105 and film capacitors
What applications use a 1.0µF 630V DC film capacitor?
This 1.0µF 630V DC film capacitor serves filtering, timing, and energy storage functions in circuits operating within its voltage and temperature ratings.
Can the QXJ2J105 handle high-temperature environments?
The QXJ2J105 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 QXJ2J105?
The QXJ2J105 uses radial 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 QXJ2J105?
Cross-referencing the QXJ2J105 requires matching capacitance (1.0µF), voltage (630V DC), 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 QXJ2J105?
Yes. Industry best practice is to operate capacitors at 60–80% of their rated voltage. For the QXJ2J105 rated at 630V DC, this means designing your circuit to keep the applied voltage below 504V 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 QXJ2J105?
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 QXJ2J105 shows as out of stock, our sourcing team can typically locate high-voltage film capacitors within 1–2 weeks through our manufacturer and distributor network. Contact us for expedited options or large-quantity pricing.
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