Equivalent & Substitute Parts for 171223K250C-F

Part Overview

The 171223K250C-F is a 0.022 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE), designed for applications requiring high pulse and DV/DT performance. This radial polypropylene metallized capacitor operates at 250V DC with ±10% tolerance and is rated for temperatures between -55°C and 105°C. The part is currently in active production status with 1109 units available in stock. Identifying equivalent substitute parts is necessary when the primary part becomes unavailable or when design requirements necessitate alternative voltage ratings or performance characteristics within the same capacitance and tolerance specifications.

Substiute Parts

171223K250C-F

Cornell Dubilier Electronics (CDE)In Stock: 1135171223K250C-F Datasheet

Current PartRFQ

R75LF22204000K

KEMETIn Stock: 7363R75LF22204000K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 171223K250C-F is determined by strict equivalence in the following parameters:

Critical Parameters for Substitution:

• Capacitance: 0.022 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Dielectric Material: Polypropylene (PP), Metallized (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial (exact match required)
• Lead Spacing: 0.394" (10.00mm) (exact match required)
• Termination: PC Pins (exact match required)

Parameters Allowing Variation:

• Voltage Rating - DC: Substitute parts may have equal or higher voltage ratings
• Physical dimensions (length, width, height): Minor variations within mechanical compatibility
• Manufacturer: Different manufacturers producing equivalent specifications

The substitute part R75LF22204000K from KEMET meets all critical parameters while providing a higher DC voltage rating of 560V, making it suitable for applications where the 171223K250C-F is unavailable.

Parameter Comparison

Engineering Selection Recommendations

The R75LF22204000K from KEMET is electrically and mechanically compatible with the 171223K250C-F. Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The substitute part provides a higher DC voltage rating (560V versus 250V), which is acceptable for applications designed for the 171223K250C-F and does not introduce incompatibility.

The primary consideration is product status: the 171223K250C-F is currently in active production with adequate inventory (1109 units), while the R75LF22204000K is marked as obsolete with higher inventory availability (7337 units). Selection between these parts should be based on supply chain requirements and long-term availability planning.

Frequently Asked Questions (FAQ)

Q: Can the R75LF22204000K replace the 171223K250C-F in existing designs?

A: Yes. Both parts share identical capacitance (0.022 µF), tolerance (±10%), dielectric material (polypropylene metallized), mounting type (through hole radial), lead spacing (10.00mm), and operating temperature range (-55°C to 105°C). The substitute part has a higher voltage rating, which does not create incompatibility in circuits designed for 250V DC operation.

Q: What are the physical differences between these parts?

A: Both parts have identical length (0.512" / 13.00mm) and width (0.157" / 4.00mm). The seated height differs slightly: the 171223K250C-F measures 0.374" (9.50mm) maximum, while the R75LF22204000K measures 0.358" (9.10mm) maximum. This 0.016" difference is within typical PCB layout tolerances for radial through-hole components.

Q: Are there compliance differences between the two parts?

A: Both parts are ROHS3 compliant and REACH unaffected. No compliance barriers exist for substitution.

Q: Why is the R75LF22204000K marked as obsolete?

A: Product status reflects manufacturer production decisions and is independent of part functionality. The obsolete status of the KEMET part does not affect its electrical or mechanical performance as a substitute.

Q: What applications are these parts suitable for?

A: The 171223K250C-F is specified for high pulse and DV/DT applications. The R75LF22204000K is specified for DC link and DC filtering applications. Both specifications are compatible with the same capacitance and voltage characteristics.