Equivalent & Substitute Parts for 171223K630F-F

Part Overview

The Cornell Dubilier Electronics (CDE) 171223K630F-F is a 0.022 µF film capacitor rated for 630V DC operation with ±10% tolerance. This radial polypropylene metallized capacitor is designed for high pulse and DV/DT applications requiring through-hole mounting. The part is currently active in production with 674 units in stock. Substitute parts are identified to provide alternative sourcing options when the primary part becomes unavailable or when design requirements necessitate enhanced electrical specifications.

Substiute Parts

171223K630F-F

Cornell Dubilier Electronics (CDE)In Stock: 756171223K630F-F Datasheet

Current PartRFQ

R75QI2220AA00J

KEMETIn Stock: 808R75QI2220AA00J Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 171223K630F-F is determined by the following criteria:

Mandatory Matching Parameters:

• Capacitance value: 0.022 µF (exact match required)
• Dielectric material: Polypropylene (PP), Metallized (exact match required)
• Mounting type: Through Hole, Radial (exact match required)
• Lead spacing: 0.591" (15.00mm) (exact match required)

Allowable Upgrade Parameters:

• Voltage rating - DC: Substitute must be ≥630V
• Voltage rating - AC: Substitute must be ≥250V
• Tolerance: Substitute tolerance must be ≤±10%
• Operating temperature range: Substitute must cover -55°C ~ 105°C minimum
• Physical dimensions: Substitute must fit within or equal to original envelope

The KEMET R75QI2220AA00J qualifies as a substitute because it maintains identical capacitance, dielectric material, mounting configuration, and lead spacing while providing enhanced voltage ratings (1000V DC vs. 630V DC) and improved tolerance (±5% vs. ±10%).

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (171223K630F-F): Select the CDE 171223K630F-F when the design circuit operates at or near 630V DC and the ±10% tolerance specification is acceptable. This part is active in production with established supply availability (674 units in stock).

Substitute Part Selection (R75QI2220AA00J): Select the KEMET R75QI2220AA00J when:

• Enhanced voltage margin is required (1000V DC rating vs. 630V DC)
• Tighter capacitance tolerance (±5% vs. ±10%) is specified
• KEMET supply chain is preferred or more readily available
• Automotive-grade reliability (AEC-Q200 rated) is required

Both parts maintain identical physical footprints, lead spacing, and mounting configurations, ensuring direct PCB compatibility. Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The substitute part provides superior electrical specifications without requiring circuit board redesign.

Frequently Asked Questions (FAQ)

Q: Can the KEMET R75QI2220AA00J be used as a direct replacement for the CDE 171223K630F-F?

A: Yes. Both parts have identical capacitance (0.022 µF), dielectric material (polypropylene metallized), mounting type (through-hole radial), lead spacing (15.00mm), and physical dimensions (18.00mm x 5.00mm). The KEMET part provides higher voltage rating (1000V vs. 630V) and tighter tolerance (±5% vs. ±10%), making it a compatible upgrade.

Q: What are the physical footprint differences between these parts?

A: The parts are dimensionally equivalent. Both measure 0.709" L x 0.197" W (18.00mm x 5.00mm) with identical 15.00mm lead spacing. The seated height differs by 0.004" (0.10mm), which is negligible for standard PCB applications.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both the CDE 171223K630F-F and KEMET R75QI2220AA00J are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What is the tolerance difference between these parts?

A: The CDE part has ±10% tolerance, while the KEMET substitute has ±5% tolerance. The tighter tolerance of the KEMET part provides improved capacitance accuracy without affecting circuit compatibility.

Q: Does the higher voltage rating of the KEMET part affect circuit operation?

A: No. A higher voltage rating does not affect circuit operation. The KEMET R75QI2220AA00J rated for 1000V DC can be used in circuits designed for 630V DC operation. The higher rating provides additional safety margin and reliability.

Q: Are there any temperature range differences?

A: No. Both parts operate across the identical temperature range of -55°C to 105°C, ensuring equivalent thermal performance in all operating conditions.

Q: What applications are these capacitors suitable for?

A: Both parts are designed for high pulse and DV/DT applications. The KEMET part additionally carries automotive-grade qualification (AEC-Q200), making it suitable for automotive high-frequency and switching applications.