Equivalent & Substitute Parts for 1111J5000910FUT

Part Overview

The 1111J5000910FUT is a 91 pF ceramic capacitor rated at 500V with C0G/NP0 temperature coefficient, manufactured by Knowles Syfer. This surface mount multilayer ceramic capacitor (MLCC) is designed for RF and microwave applications requiring high Q and ultra-low ESR characteristics. The part is currently obsolete, necessitating identification of active equivalent components to maintain supply chain continuity and support ongoing production requirements.

Substiute Parts

1111J5000910FUT

Knowles SyferIn Stock: 9211111J5000910FUT Datasheet

Current PartRFQ

1111J5000910FQT

Knowles SyferIn Stock: 8151111J5000910FQT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1111J5000910FUT is determined by strict equivalence across the following parameters:

• Capacitance value: 91 pF (exact match required)
• Tolerance: ±1% (ensures circuit performance specifications)
• Voltage rating: 500V (minimum acceptable rating)
• Temperature coefficient: C0G/NP0 (required for frequency stability)
• Operating temperature range: -55°C to 125°C (application environment compatibility)
• Package: 1111 (2828 Metric) (PCB layout and assembly compatibility)
• Mounting type: Surface Mount, MLCC (manufacturing process compatibility)
• Moisture sensitivity: MSL 1 (handling and storage requirements)

The 1111J5000910FQT meets all substitution criteria as an active equivalent component from the same manufacturer.

Parameter Comparison

Engineering Selection Recommendations

The 1111J5000910FQT is the direct equivalent for the obsolete 1111J5000910FUT. Both components share identical electrical specifications, physical dimensions, and packaging requirements. The substitute part is currently in active production status, ensuring long-term availability and supply chain stability.

The 1111J5000910FQT carries ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and distribution. Both parts maintain EAR99 export classification and identical HTSUS commodity codes, confirming regulatory equivalence.

Selection of the 1111J5000910FQT eliminates obsolescence risk while maintaining full electrical and mechanical compatibility with existing circuit designs and PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can the 1111J5000910FQT be used as a direct replacement for the 1111J5000910FUT?

A: Yes. Both components are electrically and mechanically identical across all specified parameters: 91 pF capacitance, ±1% tolerance, 500V rating, C0G/NP0 temperature coefficient, and 1111 (2828 Metric) package. No circuit modifications or PCB layout changes are required.

Q: What is the primary reason for substitution?

A: The 1111J5000910FUT is obsolete. The 1111J5000910FQT is the active equivalent from the same manufacturer, ensuring continued availability and supply chain continuity.

Q: Are there any differences in physical dimensions between these parts?

A: No. Both components have identical dimensions: 0.110" L x 0.110" W (2.79mm x 2.79mm) with a maximum thickness of 0.070" (1.78mm). They are fully compatible with existing PCB designs.

Q: Do both parts have the same moisture sensitivity rating?

A: Yes. Both the 1111J5000910FUT and 1111J5000910FQT are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for handling and storage.

Q: Are there regulatory or compliance differences between the two parts?

A: No significant differences exist. Both parts carry EAR99 export classification and identical HTSUS codes. The substitute part includes ROHS3 compliance and REACH unaffected status, meeting current regulatory standards.

Q: Can the 1111J5000910FQT be used in RF and microwave applications?

A: Yes. The substitute part maintains the same C0G/NP0 temperature coefficient and operating temperature range (-55°C to 125°C) required for RF and microwave circuit applications.