Equivalent & Substitute Parts for 1111Y5000220FUT

Part Overview

The 1111Y5000220FUT is a 22 pF ±1% 500V ceramic capacitor manufactured by Knowles Syfer in the FlexiCap™ series. This surface mount MLCC (multilayer ceramic capacitor) features C0G/NP0 temperature coefficient characteristics with high Q and low loss performance suitable for RF, microwave, and high-frequency applications. The part is currently listed as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability.

Substiute Parts

1111Y5000220FUT

Knowles SyferIn Stock: 11281111Y5000220FUT Datasheet

Current PartRFQ

1111Y5000220FQT

Knowles SyferIn Stock: 7621111Y5000220FQT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1111Y5000220FUT is determined by strict equivalence across the following electrical and mechanical parameters:

• Capacitance value: 22 pF (exact match required)
• Tolerance: ±1% (exact match required)
• Voltage rating: 500V (exact match required)
• Temperature coefficient: C0G/NP0 (1B) (exact match required)
• Operating temperature range: -55°C ~ 125°C (exact match required)
• Package / Case: 1111 (2828 Metric) (exact match required)
• Physical dimensions: 0.110" L x 0.110" W x 0.070" max thickness (exact match required)
• Mounting type: Surface Mount, MLCC (exact match required)

The substitute part 1111Y5000220FQT meets all specified electrical and mechanical parameters, providing direct functional equivalence while offering active product status and current availability.

Parameter Comparison

Engineering Selection Recommendations

The 1111Y5000220FQT is the direct equivalent substitute for the obsolete 1111Y5000220FUT. Both parts are manufactured by Knowles Syfer and share identical electrical specifications, mechanical dimensions, and compliance certifications. The substitute part maintains active product status with current manufacturing support and documented availability. Both parts comply with ROHS3 requirements and carry MSL 1 rating, indicating no moisture sensitivity constraints during storage and handling. Selection of the 1111Y5000220FQT eliminates obsolescence risk while preserving full design compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 1111Y5000220FQT be used as a direct replacement for the 1111Y5000220FUT?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters: 22 pF capacitance, ±1% tolerance, 500V rating, C0G/NP0 temperature coefficient, identical package dimensions (1111/2828 Metric), and matching operating temperature range (-55°C ~ 125°C). No circuit modifications are required.

Q: What is the primary difference between these two parts?

A: The 1111Y5000220FUT is obsolete with no active manufacturing. The 1111Y5000220FQT is an active product with current availability and manufacturing support from Knowles Syfer.

Q: Are there any compliance or certification differences?

A: No. Both parts carry identical ROHS3 compliance status and MSL 1 moisture sensitivity rating. Regulatory and environmental certifications are equivalent.

Q: Will the substitute part fit existing PCB layouts designed for the original part?

A: Yes. The 1111Y5000220FQT uses the identical 1111 (2828 Metric) package with matching footprint dimensions of 0.110" L x 0.110" W and maximum thickness of 0.070" (1.78mm). No PCB redesign is necessary.

Q: Are there any performance differences in RF or microwave applications?

A: No. Both parts share identical electrical characteristics including high Q, low loss, and soft termination features. Performance in RF, microwave, and high-frequency applications is equivalent.