VJ0805Q3R3DFBAI Equivalent & Substitute Parts

Part Overview

The VJ0805Q3R3DFBAI is a 3.3 pF ceramic capacitor manufactured by Vishay Vitramon, rated for 100V operation in a 0805 (2012 Metric) surface mount package. This component is designed for RF, microwave, and high-frequency applications requiring high Q and low loss characteristics. The part is currently listed as obsolete, making identification of active equivalent components necessary for ongoing design support and procurement.

Substiute Parts

VJ0805Q3R3DFBAI

Vishay VitramonIn Stock: 1015VJ0805Q3R3DFBAI Datasheet

Current PartRFQ

VJ0805D3R3DXBAR

Vishay VitramonIn Stock: 1155VJ0805D3R3DXBAR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the VJ0805Q3R3DFBAI is determined by the following critical parameters:

• Capacitance Value: 3.3 pF with ±0.5pF tolerance
• Voltage Rating: 100V minimum
• Temperature Coefficient: C0G/NP0 dielectric
• Package: 0805 (2012 Metric) surface mount
• Mounting Type: Surface Mount MLCC
• Compliance: ROHS3 Compliant

The substitute part VJ0805D3R3DXBAR meets all these criteria. Both parts share identical capacitance, tolerance, voltage rating, temperature coefficient, package dimensions, and compliance certifications. The primary distinction is product status: the original part is obsolete while the substitute is active.

Parameter Comparison

Engineering Selection Recommendations

The VJ0805D3R3DXBAR is the active equivalent for the obsolete VJ0805Q3R3DFBAI. Both components are manufactured by Vishay Vitramon and maintain identical electrical specifications: 3.3 pF capacitance, ±0.5pF tolerance, 100V voltage rating, and C0G/NP0 temperature coefficient. Physical dimensions and package specifications are identical, ensuring direct PCB compatibility.

Both parts carry ROHS3 compliance and MSL 1 rating, meeting current regulatory and environmental requirements. The substitute part is currently in active production with confirmed inventory availability.

The operating temperature range of the substitute extends to 125°C versus 150°C for the original part. This difference should be evaluated against specific application requirements. For applications operating within the -55°C to 125°C range, the substitute provides full functional equivalence.

Frequently Asked Questions (FAQ)

Q: Can VJ0805D3R3DXBAR be used as a direct replacement for VJ0805Q3R3DFBAI?

A: Yes. Both parts share identical capacitance (3.3 pF), tolerance (±0.5pF), voltage rating (100V), temperature coefficient (C0G/NP0), and package dimensions (0805 / 2012 Metric). Physical footprint compatibility is confirmed.

Q: What is the difference in operating temperature range?

A: The original part operates from -55°C to 150°C, while the substitute operates from -55°C to 125°C. Applications requiring operation above 125°C should be evaluated for compatibility.

Q: Are both parts RoHS compliant?

A: Yes. Both VJ0805Q3R3DFBAI and VJ0805D3R3DXBAR are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Why is the original part listed as obsolete?

A: The VJ0805Q3R3DFBAI is no longer in active production. The VJ0805D3R3DXBAR from the same manufacturer provides equivalent electrical and mechanical specifications for ongoing applications.

Q: Are there any mounting or assembly differences?

A: No. Both parts are surface mount MLCCs in 0805 (2012 Metric) packages with identical dimensions (0.079" L x 0.049" W, 0.057" max thickness). Standard SMT assembly processes apply to both components.