Equivalent & Substitute Parts for 1111Y5000680FUT

Part Overview

The 1111Y5000680FUT is a 68 pF ceramic capacitor rated at 500V with C0G/NP0 temperature coefficient, manufactured by Knowles Syfer under the FlexiCap™ series. This surface mount MLCC (multilayer ceramic capacitor) is designed for RF, microwave, and high-frequency applications requiring low loss and ultra-low ESR characteristics. The part is currently obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability.

Substiute Parts

1111Y5000680FUT

Knowles SyferIn Stock: 9671111Y5000680FUT Datasheet

Current PartRFQ

1111Y5000680FQT

Knowles SyferIn Stock: 7561111Y5000680FQT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1111Y5000680FUT is determined by strict equivalence across the following critical parameters:

• Capacitance value: 68 pF (exact match required)
• Tolerance: ±1% (exact match required)
• Voltage rating: 500V (exact match required)
• Temperature coefficient: C0G/NP0 (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)
• RoHS compliance: ROHS3 Compliant (exact match required)
• Moisture sensitivity: MSL 1 (exact match required)

The substitute part 1111Y5000680FQT meets all these criteria and is manufactured by the same supplier (Knowles Syfer) under the same FlexiCap™ series, ensuring functional and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The 1111Y5000680FQT is the direct equivalent substitute for the obsolete 1111Y5000680FUT. Both parts are manufactured by Knowles Syfer and share identical electrical and mechanical specifications. The substitute part maintains active product status, ensuring continued availability and supply chain support. Both parts carry ROHS3 compliance and identical moisture sensitivity ratings, confirming regulatory and environmental compatibility. Selection of the 1111Y5000680FQT eliminates obsolescence risk while preserving all functional and physical characteristics required for RF, microwave, and high-frequency circuit applications.

Frequently Asked Questions (FAQ)

Q: Can the 1111Y5000680FQT be used as a direct replacement for the 1111Y5000680FUT?

A: Yes. Both parts are electrically and mechanically identical, with matching capacitance (68 pF), tolerance (±1%), voltage rating (500V), temperature coefficient (C0G/NP0), operating temperature range (-55°C ~ 125°C), package type (1111/2828 Metric), and physical dimensions. The substitute is the active equivalent.

Q: What is the primary reason for substitution?

A: The 1111Y5000680FUT is obsolete. The 1111Y5000680FQT is the active product from the same manufacturer and series, providing continued supply availability.

Q: Are there any differences in performance characteristics?

A: No. Both parts share identical electrical specifications including capacitance value, tolerance, voltage rating, temperature coefficient, and operating temperature range. Both feature high Q, low loss, and soft termination characteristics.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, confirming identical regulatory and environmental compliance.

Q: Are the physical dimensions and package footprints identical?

A: Yes. Both parts use the 1111 (2828 Metric) package with identical dimensions of 0.110" L x 0.110" W (2.79mm x 2.79mm) and maximum thickness of 0.070" (1.78mm), ensuring direct PCB compatibility.

Q: Can these parts be used interchangeably in existing designs?

A: Yes. The 1111Y5000680FQT is a direct functional and mechanical equivalent, requiring no design modifications or PCB layout changes.