1111J5000820FUT Equivalent & Substitute Parts

Part Overview

The 1111J5000820FUT is an 82 pF ±1% 500V ceramic capacitor with C0G/NP0 temperature coefficient manufactured by Knowles Syfer. This surface mount MLCC (multilayer ceramic capacitor) is designed for RF and microwave applications requiring high Q, low loss, and ultra-low ESR characteristics. The part is currently obsolete, making substitute identification critical for ongoing production and maintenance applications. The active equivalent 1111J5000820FQT provides functional continuity while maintaining identical electrical and mechanical specifications.

Substiute Parts

1111J5000820FUT

Knowles SyferIn Stock: 8381111J5000820FUT Datasheet

Current PartRFQ

1111J5000820FQT

Knowles SyferIn Stock: 11551111J5000820FQT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 1111J5000820FUT with the active 1111J5000820FQT is valid based on the following criteria:

Electrical Parameters Match:

• Capacitance: 82 pF (identical)
• Tolerance: ±1% (identical)
• Voltage Rating: 500V (identical)
• Temperature Coefficient: C0G, NP0 (identical)
• Operating Temperature Range: -55°C ~ 125°C (identical)

Mechanical Parameters Match:

• Package / Case: 1111 (2828 Metric) (identical)
• Mounting Type: Surface Mount, MLCC (identical)
• Physical Dimensions: 0.110" L x 0.110" W (2.79mm x 2.79mm) (identical)
• Thickness: 0.070" (1.78mm) (identical)
• Moisture Sensitivity Level: 1 (Unlimited) (identical)

Regulatory Compliance:

• ECCN: EAR99 (identical)
• HTSUS: 8532.24.0020 (identical)

The substitute part maintains all critical electrical and mechanical specifications required for direct replacement in RF and microwave circuit applications.

Parameter Comparison

Engineering Selection Recommendations

The 1111J5000820FQT is the direct substitute for the obsolete 1111J5000820FUT. Selection is based on:

Product Status: The substitute part is active and in production, ensuring long-term availability and supply chain continuity.

Compliance Certifications: Both parts share identical ECCN (EAR99) and HTSUS (8532.24.0020) classifications, maintaining regulatory alignment.

RoHS Status: The substitute part is ROHS3 compliant, meeting current environmental standards.

REACH Status: The substitute part is REACH unaffected, confirming compliance with chemical substance regulations.

All electrical and mechanical parameters are identical, enabling direct PCB-level substitution without design modification or re-qualification.

Frequently Asked Questions (FAQ)

Q: Can 1111J5000820FQT be used as a direct replacement for 1111J5000820FUT?

A: Yes. Both parts are identical in capacitance (82 pF), tolerance (±1%), voltage rating (500V), temperature coefficient (C0G/NP0), operating temperature range (-55°C ~ 125°C), package (1111/2828 Metric), and physical dimensions. Direct PCB substitution is valid.

Q: Are there any differences in electrical performance between these parts?

A: No. The electrical specifications are identical: 82 pF capacitance, ±1% tolerance, 500V rating, and C0G/NP0 temperature coefficient. Both parts are suitable for RF and microwave applications.

Q: What is the key difference between these parts?

A: The primary difference is product status. The 1111J5000820FUT is obsolete, while the 1111J5000820FQT is active and in production. The substitute ensures continued availability and supply chain reliability.

Q: Are the physical packages identical?

A: Yes. Both parts use the 1111 (2828 Metric) package with identical dimensions: 0.110" L x 0.110" W (2.79mm x 2.79mm) and 0.070" (1.78mm) maximum thickness. No PCB layout modifications are required.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts share identical ECCN (EAR99) and HTSUS (8532.24.0020) classifications. The substitute part is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Q: What is the moisture sensitivity level for these parts?

A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.