UP050B152K-NACZ Equivalent & Substitute Parts

Part Overview

The UP050B152K-NACZ is a 1500 pF ceramic capacitor rated for 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 maintains general-purpose application suitability with 1057 units currently in stock inventory.

Substiute Parts

UP050B152K-NACZ

Taiyo YudenIn Stock: 1112UP050B152K-NACZ Datasheet

Current PartRFQ

A152K15X7RF5UAA

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 879A152K15X7RF5UAA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UP050B152K-NACZ is determined by strict equivalence across the following parameters:

Mandatory Matching Criteria:

• Capacitance value: 1500 pF (no deviation permitted)
• Voltage rating: 50V minimum
• Tolerance: ±10% or tighter
• Mounting configuration: Through-hole axial
• Lead style: Straight

Acceptable Variation Parameters:

• Temperature coefficient: X7R acceptable as superior alternative to B (wider operating range, better stability)
• Operating temperature range: May exceed minimum specification
• Physical dimensions: Minor variations acceptable within standard axial package tolerances
• Moisture sensitivity: Lower MSL values acceptable

The substitute part A152K15X7RF5UAA meets all mandatory criteria while providing enhanced temperature coefficient performance and extended operating range.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: A152K15X7RF5UAA

The A152K15X7RF5UAA is the qualified substitute for UP050B152K-NACZ based on the following engineering factors:

Electrical Equivalence: All critical electrical parameters match exactly: 1500 pF capacitance, ±10% tolerance, and 50V voltage rating. The X7R temperature coefficient provides superior frequency stability and temperature performance compared to the B coefficient of the original part, with an extended operating range of -55°C to 125°C versus -25°C to 85°C.

Physical Compatibility: Both components utilize through-hole axial mounting with straight leads, ensuring PCB layout compatibility. Dimensional variation (0.098" Dia x 0.150" L versus 0.087" Dia x 0.126" L) falls within standard axial package tolerances and does not compromise board-level integration.

Compliance & Availability: The substitute part is actively manufactured by Vishay Beyschlag/Draloric/BC Components with ROHS3 and REACH compliance certifications. Current inventory of 800 units ensures procurement continuity. The original part's obsolete status and limited remaining stock (1057 units) support transition to this active alternative.

Regulatory Alignment: Both parts share EAR99 export classification. The HTSUS code difference reflects the superior temperature coefficient classification of the substitute but does not affect functional application or regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can A152K15X7RF5UAA directly replace UP050B152K-NACZ in existing designs?

A: Yes. Both components share identical capacitance (1500 pF), tolerance (±10%), voltage rating (50V), and through-hole axial mounting configuration. The X7R temperature coefficient of the substitute provides enhanced performance over the B coefficient original. Physical dimensions vary slightly but remain within standard axial package specifications and do not affect PCB layout compatibility.

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

A: Temperature coefficient defines capacitance variation across operating temperature ranges. B coefficient (±500 ppm/°C) provides basic stability for general-purpose applications. X7R coefficient (±15% across -55°C to 125°C) delivers superior stability and wider temperature operation. For applications operating within -25°C to 85°C, both coefficients are functionally acceptable, but X7R provides additional margin and performance headroom.

Q: Are there physical dimension concerns with the substitute part?

A: The substitute part measures 0.098" Dia x 0.150" L compared to the original 0.087" Dia x 0.126" L. These dimensions remain within standard axial ceramic capacitor package tolerances. Verify PCB hole spacing and component clearance in confined layouts, though standard through-hole designs accommodate this variation without modification.

Q: What is the inventory status for each part?

A: UP050B152K-NACZ (obsolete): 1057 units in stock. A152K15X7RF5UAA (active): 800 units in stock. The substitute part's active manufacturing status ensures long-term availability, while the original part's obsolete classification and finite inventory support planned transition.

Q: Do compliance certifications differ between the parts?

A: The substitute part carries ROHS3 and REACH compliance certifications. The original part's compliance status is not specified in available documentation. Both parts share EAR99 export classification. For applications requiring specific regulatory compliance, the substitute part's documented certifications provide assurance of regulatory alignment.

Q: What packaging format is available for the substitute part?

A: A152K15X7RF5UAA is supplied in Tape & Box (TB) packaging, suitable for both manual and automated assembly processes. Confirm packaging compatibility with your procurement and assembly workflow requirements.