UP050B273K-KFCZ Equivalent & Substitute Parts

Part Overview

The UP050B273K-KFCZ is a 0.027 µF ceramic capacitor rated for 50V operation, manufactured by Taiyo Yuden. This axial through-hole component features a B-type temperature coefficient and is designed for general-purpose applications. The part is classified as obsolete, making identification of suitable substitute components necessary for ongoing design support, repair, and production continuity.

Substiute Parts

UP050B273K-KFCZ

Taiyo YudenIn Stock: 869UP050B273K-KFCZ Datasheet

Current PartRFQ

A273K15X7RF5UAA

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

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UP050B273K-KFCZ is determined by the following critical parameters:

Mandatory Matching Parameters:

• Capacitance value: 0.027 µF
• Voltage rating: 50V minimum
• Tolerance: ±10%
• Mounting type: Through Hole
• Package type: Axial
• Lead style: Straight

Acceptable Variation Parameters:

• Temperature coefficient: X7R is acceptable as a substitute for B-type, provided the operating temperature range of the application does not exceed the substitute's rated limits
• Physical dimensions: Minor variations in diameter and length are acceptable provided the component fits within the PCB layout constraints
• Product status: Active components are preferred over obsolete components for long-term availability

The substitute part A273K15X7RF5UAA meets all mandatory matching parameters and provides enhanced temperature stability through its X7R temperature coefficient and extended operating range.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: A273K15X7RF5UAA

The A273K15X7RF5UAA is the qualified substitute for the UP050B273K-KFCZ based on the following criteria:

1. Electrical Equivalence: Both components share identical capacitance (0.027 µF), tolerance (±10%), and voltage rating (50V), ensuring functional compatibility in circuit applications.

2. Product Status: The substitute is classified as Active, providing assured long-term availability and supply chain continuity compared to the obsolete main part.

3. Regulatory Compliance: The A273K15X7RF5UAA carries ROHS3 compliance and REACH Unaffected status, meeting current environmental and regulatory requirements for new designs and production.

4. Temperature Performance: The X7R temperature coefficient of the substitute provides superior temperature stability across an extended operating range (-55°C ~ 125°C) compared to the B-type coefficient of the main part (-25°C ~ 85°C). This enhanced performance is applicable to applications operating within the original temperature specification.

5. Physical Compatibility: The substitute maintains axial through-hole mounting with straight leads. Physical dimensions are slightly larger (0.098" Dia x 0.150" L versus 0.087" Dia x 0.126" L), requiring verification of PCB layout clearance during implementation.

Frequently Asked Questions (FAQ)

Q: Can the A273K15X7RF5UAA be used as a direct replacement for the UP050B273K-KFCZ?

A: Yes, the A273K15X7RF5UAA is electrically equivalent for applications requiring 0.027 µF capacitance at 50V with ±10% tolerance. Both components are axial through-hole devices with straight leads. Physical dimensions differ slightly; PCB layout must accommodate the larger substitute component (0.098" Dia x 0.150" L).

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

A: B-type temperature coefficient specifies capacitance change over a limited temperature range (-25°C ~ 85°C). X7R temperature coefficient specifies capacitance change over an extended range (-55°C ~ 125°C) with tighter tolerance specifications. For applications operating within the original temperature range, X7R provides equivalent or superior performance.

Q: Is the substitute part RoHS compliant?

A: Yes, the A273K15X7RF5UAA is ROHS3 compliant and REACH unaffected. The main part (UP050B273K-KFCZ) RoHS status is not specified in available documentation.

Q: Are there any physical installation considerations when using the substitute?

A: The substitute component is slightly larger in diameter (0.098" versus 0.087") and length (0.150" versus 0.126"). Verify that PCB hole spacing, component clearance, and layout constraints accommodate these dimensions before implementation.

Q: What is the moisture sensitivity level of the substitute part?

A: The A273K15X7RF5UAA has a moisture sensitivity level classification of Not Applicable, indicating this parameter does not apply to this component type. The main part is classified as MSL 1 (Unlimited).

Q: Can the substitute be used in new designs?

A: Yes. The A273K15X7RF5UAA is classified as Active and carries current regulatory certifications (ROHS3, REACH Unaffected), making it suitable for new product designs and production.