Equivalent & Substitute Parts for 08055U2R2BAT2A

Part Overview

The 08055U2R2BAT2A is a 2.2 pF ceramic capacitor manufactured by KYOCERA AVX, designed for RF and microwave applications requiring ultra-low ESR performance. This surface-mount MLCC (multilayer ceramic capacitor) in 0805 package format operates across -55°C to 125°C with C0G/NP0 temperature stability. The part is active in production with ROHS3 compliance and MSL 1 rating, making it suitable for high-frequency circuit applications where precise capacitance and stable performance are critical. Equivalent parts are identified to support design flexibility, supply chain continuity, and application-specific voltage requirements.

Substiute Parts

08055U2R2BAT2A

KYOCERA AVXIn Stock: 87208055U2R2BAT2A Datasheet

Current PartRFQ

KGQ21HCG2D2R2BT

KYOCERA AVXIn Stock: 8385KGQ21HCG2D2R2BT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the 08055U2R2BAT2A is determined by strict equivalence in the following parameters:

• Capacitance Value: 2.2 pF (exact match required)
• Tolerance: ±0.1pF (exact match required)
• Temperature Coefficient: C0G/NP0 (required for frequency stability)
• Package Format: 0805 (2012 Metric) (required for PCB compatibility)
• Mounting Type: Surface Mount, MLCC (required for assembly compatibility)
• Operating Temperature Range: -55°C ~ 125°C (required for thermal performance)

The substitute part KGQ21HCG2D2R2BT meets all equivalence criteria with one parameter variation: rated voltage is increased from 50V to 200V. This represents an upgrade path where higher voltage rating provides enhanced design margin without affecting electrical performance in applications rated for 50V operation.

Parameter Comparison

Engineering Selection Recommendations

Both 08055U2R2BAT2A and KGQ21HCG2D2R2BT are active production parts from KYOCERA AVX with identical ROHS3 compliance and REACH unaffected status. The KGQ21HCG2D2R2BT offers a 200V rated voltage compared to the 50V rating of the main part, providing increased voltage margin for applications operating below 50V. Both parts maintain identical physical dimensions, thermal performance, and ESR characteristics. Selection between these parts depends on circuit voltage requirements and supply availability. The higher voltage rating of the substitute does not degrade performance in 50V-rated applications.

Frequently Asked Questions (FAQ)

Q: Can KGQ21HCG2D2R2BT replace 08055U2R2BAT2A in my circuit?

A: Yes, KGQ21HCG2D2R2BT is a direct substitute for 08055U2R2BAT2A. Both parts share identical capacitance (2.2 pF), tolerance (±0.1pF), temperature coefficient (C0G/NP0), package format (0805), and operating temperature range (-55°C ~ 125°C). The substitute has a higher rated voltage (200V vs 50V), which does not affect compatibility in applications designed for 50V operation.

Q: Are there physical compatibility concerns between these parts?

A: No. Both parts use identical 0805 (2012 Metric) package dimensions: 0.079" L x 0.049" W (2.01mm x 1.25mm) with maximum thickness of 0.045" (1.15mm). PCB footprints and assembly processes are identical.

Q: What is the significance of the voltage rating difference?

A: The KGQ21HCG2D2R2BT operates at 200V rated voltage versus 50V for the main part. In applications where circuit voltage does not exceed 50V, the higher voltage rating provides additional design margin and reliability headroom without affecting electrical performance or frequency stability.

Q: Do both parts meet the same compliance standards?

A: Yes. Both 08055U2R2BAT2A and KGQ21HCG2D2R2BT are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating. Both are active production parts from KYOCERA AVX.

Q: Which part should I select for new designs?

A: Selection depends on supply availability and circuit voltage requirements. For applications operating at or below 50V, either part is suitable. The KGQ21HCG2D2R2BT may be preferred if higher voltage margin is desired or if supply of the main part is constrained.