Equivalent & Substitute Parts for UP050B273K-A-BZ

Part Overview

The UP050B273K-A-BZ is a 0.027 µF ceramic capacitor rated at 50V with B temperature coefficient, manufactured by Taiyo Yuden in axial through-hole configuration. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing production and maintenance applications. The part maintains general-purpose functionality suitable for standard electronic circuit applications requiring 0.027 µF capacitance at 50V operating conditions.

Substiute Parts

UP050B273K-A-BZ

Taiyo YudenIn Stock: 817UP050B273K-A-BZ Datasheet

Current PartRFQ

A273K15X7RF5TAA

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 918A273K15X7RF5TAA Datasheet

DirectRFQ

A273K15X7RF5UAA

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 884A273K15X7RF5UAA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UP050B273K-A-BZ is based on strict equivalence of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Capacitance value: 0.027 µF (exact match required)
• Voltage rating: 50V (minimum requirement met by substitutes)
• Tolerance: ±10% (exact match required)
• Mounting type: Through Hole Axial (exact match required)
• Package case: Axial (exact match required)
• Lead style: Straight (exact match required)

Acceptable Variations:

• Temperature coefficient: B (main part) substituted by X7R (substitutes) - X7R provides superior temperature stability across a wider operating range (-55°C ~ 125°C versus -25°C ~ 85°C)
• Physical dimensions: Slight variation in diameter and length acceptable within axial package standards (2.20mm x 3.20mm main part versus 2.50mm x 3.80mm substitutes)
• Packaging format: Tape & Reel (TR) and Tape & Box (TB) formats both acceptable for component procurement

The substitute parts A273K15X7RF5TAA and A273K15X7RF5UAA, both manufactured by Vishay Beyschlag/Draloric/BC Components, meet all critical electrical parameters and maintain active product status with enhanced environmental compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection Criteria:

The obsolete status of UP050B273K-A-BZ necessitates transition to active substitute components. Both A273K15X7RF5TAA and A273K15X7RF5UAA satisfy all critical electrical parameters and provide enhanced compliance certifications.

Compliance Advantages:

Substitute parts A273K15X7RF5TAA and A273K15X7RF5UAA provide ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for current manufacturing standards. The main part UP050B273K-A-BZ lacks specified compliance documentation.

Temperature Performance:

Substitute parts feature X7R temperature coefficient with operating range of -55°C ~ 125°C, compared to the main part's B coefficient with -25°C ~ 85°C range. X7R classification provides superior capacitance stability across temperature extremes, beneficial for applications requiring extended environmental performance.

Packaging Considerations:

Selection between A273K15X7RF5TAA (Tape & Reel) and A273K15X7RF5UAA (Tape & Box) depends on procurement volume and assembly process requirements. Both maintain identical electrical specifications and physical compatibility with through-hole axial mounting.

Physical Compatibility:

Substitute parts exhibit slightly larger physical dimensions (2.50mm x 3.80mm versus 2.20mm x 3.20mm). PCB layout verification is required to confirm clearance compatibility, though standard axial package spacing accommodates this variation.

Frequently Asked Questions (FAQ)

Q: Can A273K15X7RF5TAA and A273K15X7RF5UAA be used interchangeably with UP050B273K-A-BZ?

A: Yes. Both substitute parts match the critical electrical parameters: 0.027 µF capacitance, ±10% tolerance, and 50V voltage rating. Both maintain through-hole axial mounting configuration. The primary difference is packaging format (Tape & Reel versus Tape & Box), which does not affect electrical performance or PCB installation.

Q: What is the difference between B and X7R temperature coefficients?

A: B temperature coefficient specifies capacitance change of ±(0 to -30)% across the operating temperature range. X7R temperature coefficient specifies capacitance change of ±15% across -55°C to 125°C. X7R provides more predictable and stable capacitance performance across wider temperature extremes.

Q: Are the physical dimension differences between the main part and substitutes significant?

A: The substitute parts are slightly larger (2.50mm x 3.80mm versus 2.20mm x 3.20mm). Standard through-hole axial package spacing accommodates this variation. PCB layout review is necessary to confirm clearance compatibility in space-constrained applications.

Q: What is the difference between Tape & Reel and Tape & Box packaging?

A: Tape & Reel (TR) packaging is suitable for automated assembly processes with reel-fed component placement. Tape & Box (TB) packaging is suitable for manual assembly or lower-volume procurement. Both formats contain identical components with identical electrical specifications.

Q: Why is the substitute part classified as Active while the main part is Obsolete?

A: The UP050B273K-A-BZ is no longer manufactured by Taiyo Yuden. The substitute parts A273K15X7RF5TAA and A273K15X7RF5UAA are currently manufactured by Vishay Beyschlag/Draloric/BC Components and maintain active production status, ensuring long-term availability and supply chain continuity.

Q: Do the substitute parts meet current regulatory compliance standards?

A: Yes. Both A273K15X7RF5TAA and A273K15X7RF5UAA are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.

Q: Can either substitute part be used in applications requiring the original -25°C ~ 85°C operating range?

A: Yes. The substitute parts operate across -55°C ~ 125°C, which encompasses the original -25°C ~ 85°C range. The wider operating range of substitute parts provides additional environmental margin without compromising performance within the original specification.