UP050B823K-B-BZ Equivalent & Substitute Parts

Part Overview

The UP050B823K-B-BZ is a 0.082 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 functionally equivalent alternatives for ongoing design support and procurement continuity. The part remains in stock with 1026 units available, but obsolescence status requires engineers to qualify substitute components for new production runs and field replacements.

Substiute Parts

UP050B823K-B-BZ

Taiyo YudenIn Stock: 1105UP050B823K-B-BZ Datasheet

Current PartRFQ

A823K15X7RF5UAA

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 935A823K15X7RF5UAA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UP050B823K-B-BZ is based on the following electrical and mechanical parameters:

Electrical Equivalence Requirements:

• Capacitance value: 0.082 µF (exact match)
• Voltage rating: 50V minimum
• Tolerance: ±10% or tighter
• Temperature coefficient: B or superior stability class (X7R acceptable as higher stability)

Mechanical Compatibility Requirements:

• Mounting type: Through hole axial configuration
• Package case: Axial lead style
• Lead style: Straight leads for PCB insertion
• Physical dimensions: Compatible with 0.087" diameter and 0.126" length envelope or smaller

Compliance & Availability:

• Product status: Active preferred over obsolete
• RoHS compliance: ROHS3 or equivalent
• REACH compliance: Unaffected or compliant
• Moisture sensitivity: MSL 1 or equivalent

The substitute part A823K15X7RF5UAA meets all electrical and mechanical requirements while offering superior temperature coefficient stability (X7R vs. B) and active product status.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: A823K15X7RF5UAA

This Vishay Beyschlag/Draloric/BC Components part is the qualified substitute for the obsolete UP050B823K-B-BZ. Selection is based on the following engineering criteria:

Electrical Compatibility: The substitute maintains identical capacitance (0.082 µF), tolerance (±10%), and voltage rating (50V). The X7R temperature coefficient provides superior capacitance stability across the operating temperature range compared to the original B coefficient, resulting in improved circuit performance and reliability.

Mechanical Compatibility: Both components feature through-hole axial mounting with straight leads. The substitute dimensions (0.098" Dia x 0.150" L) are slightly larger than the original (0.087" Dia x 0.126" L) but remain compatible with standard PCB axial component footprints. PCB layout verification is required to confirm clearance in space-constrained applications.

Product Status & Compliance: The substitute is actively manufactured, ensuring long-term availability and supply chain stability. ROHS3 compliance and REACH unaffected status satisfy current regulatory requirements. The substitute's MSL Not Applicable rating eliminates moisture sensitivity handling requirements, simplifying logistics and storage procedures.

Inventory & Availability: 917 units of the substitute are in stock as new original components, providing immediate procurement capability for production requirements.

Frequently Asked Questions (FAQ)

Q: Can the A823K15X7RF5UAA directly replace the UP050B823K-B-BZ without circuit modification?

A: Yes, for most applications. Both components have identical capacitance (0.082 µF), tolerance (±10%), and voltage rating (50V). The substitute's X7R temperature coefficient provides equal or superior performance compared to the original B coefficient. PCB layout must accommodate the slightly larger physical dimensions (0.098" Dia x 0.150" L vs. 0.087" Dia x 0.126" L).

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

A: B temperature coefficient specifies capacitance change of ±(0.30 ± 0.05)% per °C. X7R temperature coefficient specifies capacitance change of ±(15 ± 25) ppm/°C over -55°C to 125°C. X7R provides superior stability and wider operating temperature range, making it suitable for applications requiring tighter capacitance tolerance across temperature extremes.

Q: Are there physical space constraints with the larger substitute dimensions?

A: The substitute is 0.011" larger in diameter and 0.024" longer than the original. Standard PCB axial component footprints accommodate this size difference. Applications with severe space limitations require physical verification against PCB layout drawings to confirm clearance with adjacent components and board edges.

Q: Does the substitute require different handling procedures?

A: No. The substitute's MSL Not Applicable rating eliminates moisture sensitivity requirements. Standard component handling procedures apply. No special storage, baking, or humidity control measures are necessary, simplifying procurement and inventory management compared to moisture-sensitive alternatives.

Q: What compliance certifications does the substitute carry?

A: The A823K15X7RF5UAA is ROHS3 compliant and REACH unaffected. These certifications satisfy current environmental and regulatory requirements for electronic components in EU and global markets.

Q: Is the substitute suitable for high-temperature applications?

A: Yes. The substitute operates across -55°C to 125°C, exceeding the original part's -25°C to 85°C range. This extended temperature capability makes the substitute suitable for industrial, automotive, and aerospace applications requiring broader thermal performance.

Q: Can multiple substitutes be used interchangeably in the same design?

A: Yes. The A823K15X7RF5UAA is the qualified substitute for the UP050B823K-B-BZ. Both components meet identical electrical specifications and mechanical requirements. Inventory from either source can be used without circuit redesign or performance degradation.