Equivalent & Substitute Parts for 1111Y5003P30HUT

Part Overview

The 1111Y5003P30HUT is a 3.3 pF ceramic capacitor manufactured by Knowles Syfer, designed for RF, microwave, and high-frequency applications requiring low loss and ultra-low ESR characteristics. This part operates at 500V with C0G/NP0 temperature coefficient stability across -55°C to 125°C. The product is currently obsolete, necessitating identification of active equivalent components that maintain electrical and mechanical compatibility for continued system support and new designs.

Substiute Parts

1111Y5003P30HUT

Knowles SyferIn Stock: 11881111Y5003P30HUT Datasheet

Current PartRFQ

1111Y5003P30HQT

Knowles SyferIn Stock: 11151111Y5003P30HQT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1111Y5003P30HUT is determined by strict equivalence across the following parameters:

• Capacitance value: 3.3 pF (exact match required)
• Voltage rating: 500V (minimum requirement)
• Temperature coefficient: C0G/NP0 (1B) (required for frequency stability)
• Operating temperature range: -55°C ~ 125°C (minimum coverage required)
• Package / Case: 1111 (2828 Metric) (physical and electrical footprint compatibility)
• Mounting type: Surface Mount, MLCC (assembly process compatibility)
• RoHS compliance: ROHS3 Compliant (regulatory requirement)

The substitute part 1111Y5003P30HQT meets all substitution criteria. Tolerance variation (±0.05pF vs. ±0.5pF) represents an improvement in precision and does not restrict substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

The 1111Y5003P30HQT is the direct substitute for the obsolete 1111Y5003P30HUT. Both components are manufactured by Knowles Syfer and maintain identical electrical specifications, physical dimensions, and regulatory compliance. The substitute part is currently in active production status, ensuring availability for new designs and replacement applications.

The tighter tolerance specification of the 1111Y5003P30HQT (±0.05pF versus ±0.05pF) provides enhanced precision without introducing any compatibility constraints. Both parts carry ROHS3 compliance and MSL 1 rating, confirming equivalent environmental and handling requirements.

Frequently Asked Questions (FAQ)

Q: Can the 1111Y5003P30HQT directly replace the 1111Y5003P30HUT in existing designs?

A: Yes. Both components share identical capacitance, voltage rating, temperature coefficient, operating temperature range, package dimensions, and mounting type. The substitute part is electrically and mechanically compatible.

Q: What is the significance of the tolerance difference between these parts?

A: The 1111Y5003P30HQT features ±0.05pF tolerance compared to the ±0.5pF tolerance of the 1111Y5003P30HUT. This represents improved precision and does not restrict substitution. Applications requiring the original tolerance specification will function correctly with the tighter tolerance substitute.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts are ROHS3 compliant and carry identical MSL 1 (Unlimited) moisture sensitivity ratings. Regulatory and environmental handling requirements are equivalent.

Q: Why is the original part obsolete?

A: The 1111Y5003P30HUT is listed as obsolete. The 1111Y5003P30HQT represents the active equivalent from the same manufacturer and series, ensuring continued component availability.

Q: Are the physical dimensions identical?

A: Yes. Both parts use the 1111 (2828 Metric) package with dimensions of 0.110" L x 0.110" W (2.79mm x 2.79mm) and maximum thickness of 0.070" (1.78mm). PCB footprints and assembly processes are identical.