UP050B683K-A-BZ Equivalent & Substitute Parts

Part Overview

The UP050B683K-A-BZ is a 0.068 µF ceramic capacitor rated for 50V with B-type temperature coefficient, manufactured by Taiyo Yuden in axial through-hole configuration. This part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity. The part maintains ROHS3 compliance and MSL Level 1 rating, suitable for general-purpose applications across industrial and consumer electronics.

Substiute Parts

UP050B683K-A-BZ

Taiyo YudenIn Stock: 1074UP050B683K-A-BZ Datasheet

Current PartRFQ

A683K15X7RF5UAA

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 1137A683K15X7RF5UAA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UP050B683K-A-BZ is based on matching the following critical electrical and mechanical parameters:

Electrical Parameters (Must Match):

• Capacitance: 0.068 µF
• Voltage Rating: 50V
• Tolerance: ±10%

Mechanical Parameters (Must Match):

• Mounting Type: Through Hole
• Package/Case: Axial
• Lead Style: Straight

Compliance Parameters (Must Match):

• RoHS3 Compliance
• ECCN: EAR99

Functional Equivalence Parameters (Acceptable Variation):

• Temperature Coefficient: B-type or superior (X7R acceptable)
• Operating Temperature Range: Equal or extended range acceptable
• Physical Dimensions: Minor variations acceptable if lead spacing and mounting compatibility maintained

The substitute part A683K15X7RF5UAA meets all critical matching criteria while providing enhanced temperature stability through X7R coefficient and extended operating range (-55°C ~ 125°C versus -25°C ~ 85°C).

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: A683K15X7RF5UAA

The A683K15X7RF5UAA is the qualified equivalent for the obsolete UP050B683K-A-BZ based on the following engineering criteria:

1. Electrical Equivalence: Identical capacitance (0.068 µF), voltage rating (50V), and tolerance (±10%) ensure direct functional replacement in circuit applications.

2. Mechanical Compatibility: Both parts feature through-hole axial mounting with straight leads. The substitute exhibits slightly larger physical dimensions (0.098" Dia x 0.150" L versus 0.087" Dia x 0.126" L), which remains compatible with standard PCB axial component footprints and does not introduce mounting conflicts.

3. Regulatory Compliance: Both parts maintain ROHS3 compliance and EAR99 export classification, satisfying procurement and regulatory requirements.

4. Product Status Advantage: The substitute part maintains active production status with Vishay Beyschlag/Draloric/BC Components, ensuring long-term availability and supply chain continuity compared to the obsolete original part.

5. Enhanced Performance Characteristics: The X7R temperature coefficient provides superior temperature stability compared to the B-type coefficient of the original part. The extended operating temperature range (-55°C ~ 125°C) accommodates broader application environments without performance degradation.

6. Packaging and Inventory: The substitute is available in Tape & Box packaging with 1074 units in stock, supporting both prototype and production-volume requirements.

Frequently Asked Questions (FAQ)

Q: Can the A683K15X7RF5UAA directly replace the UP050B683K-A-BZ in existing designs?

A: Yes. Both parts share identical electrical specifications (0.068 µF, 50V, ±10% tolerance) and mechanical mounting characteristics (through-hole axial). The substitute's slightly larger physical dimensions do not prevent PCB mounting in standard axial component footprints. Verification of available board space is recommended for space-constrained layouts.

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

A: B-type temperature coefficient exhibits capacitance variation across temperature with a specified range. X7R temperature coefficient provides tighter capacitance stability across a wider temperature range (-55°C to 125°C). For the UP050B683K-A-BZ operating range (-25°C to 85°C), both coefficients function within acceptable parameters. X7R offers enhanced stability for applications experiencing broader temperature fluctuations.

Q: Why is the substitute part larger in physical dimension?

A: The A683K15X7RF5UAA measures 0.098" Dia x 0.150" L compared to the original 0.087" Dia x 0.126" L. This dimensional difference reflects manufacturing tolerances and design variations between manufacturers. Both parts maintain standard axial component proportions compatible with conventional PCB layouts and component spacing.

Q: Is the substitute part RoHS compliant?

A: Yes. The A683K15X7RF5UAA is ROHS3 compliant, matching the regulatory status of the original UP050B683K-A-BZ. Both parts satisfy lead-free and hazardous substance restrictions for EU and equivalent markets.

Q: What is the significance of the substitute part's active product status?

A: The A683K15X7RF5UAA maintains active production status with Vishay Beyschlag/Draloric/BC Components, ensuring continued availability and supply chain reliability. The original UP050B683K-A-BZ is classified as obsolete, indicating discontinued production. Transitioning to the active substitute part secures long-term component availability for ongoing production and field support.

Q: Are there any circuit performance differences between the two parts?

A: Both parts deliver identical capacitance and voltage performance within the specified tolerance band. The substitute's X7R coefficient provides superior temperature stability, which may improve circuit performance in temperature-variable environments. No circuit redesign is required for substitution.

Q: What packaging options are available for the substitute part?

A: The A683K15X7RF5UAA is supplied in Tape & Box (TB) packaging, suitable for both manual assembly and automated pick-and-place operations. The original part packaging format is not specified in available documentation.