Equivalent & Substitute Parts for UP050F104Z-A-BZ

Part Overview

The UP050F104Z-A-BZ is a 0.1 µF ceramic capacitor rated at 50V with axial through-hole mounting, manufactured by Taiyo Yuden. This component is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing applications. The axial package and F-series temperature coefficient define its original design intent for general-purpose filtering applications. Substitute parts must maintain the 0.1 µF capacitance and 50V voltage rating while accommodating different mounting technologies and tolerance specifications.

Substiute Parts

UP050F104Z-A-BZ

Taiyo YudenIn Stock: 983UP050F104Z-A-BZ Datasheet

Current PartRFQ

UMK105B7104KV-FR

Taiyo YudenIn Stock: 10029UMK105B7104KV-FR Datasheet

SimilarRFQ

A104M15X7RF5TAA

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 14733A104M15X7RF5TAA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the UP050F104Z-A-BZ is determined by the following mandatory parameters:

Critical Electrical Parameters:

• Capacitance value of 0.1 µF (no deviation permitted)
• Voltage rating of 50V or higher
• Temperature coefficient stability across the operating range

Mechanical Compatibility:

• Mounting technology (through-hole axial vs. surface-mount alternatives)
• Physical dimensions and lead configuration
• PCB assembly process compatibility

Regulatory & Environmental:

• ROHS3 compliance
• Moisture sensitivity level appropriate for storage conditions

Two substitute categories are identified:

1. Direct Axial Substitute (A104M15X7RF5TAA): Maintains through-hole axial mounting, enabling direct PCB footprint compatibility with modified tolerance and temperature coefficient specifications.

2. Surface-Mount Alternative (UMK105B7104KV-FR): Provides 0.1 µF / 50V capacitance in 0402 package format, requiring PCB redesign but offering improved high-frequency performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Preferred for Existing Designs):

The A104M15X7RF5TAA is the primary substitute for the UP050F104Z-A-BZ. Both components maintain axial through-hole mounting, enabling installation into existing PCB footprints without layout modification. The A104M15X7RF5TAA is classified as Active product status, ensuring long-term availability and supply chain stability. The component carries ROHS3 compliance and REACH Unaffected status, meeting current regulatory requirements. The X7R temperature coefficient provides superior capacitance stability across the extended operating range of -55°C to 125°C compared to the F-series coefficient of the original part. Tolerance specification of ±20% is tighter than the original -20%, +80%, providing improved circuit performance predictability.

For New Design Implementations:

The UMK105B7104KV-FR offers 0.1 µF / 50V capacitance in surface-mount 0402 package format. This component requires PCB redesign but is manufactured by Taiyo Yuden, the original equipment manufacturer. The UMK105B7104KV-FR carries ROHS3 compliance and REACH Unaffected status. Product status is classified as Not For New Designs; therefore, this component is suitable only for legacy design continuation or specific applications requiring surface-mount technology. The ±10% tolerance and X7R temperature coefficient provide enhanced performance characteristics for SMPS filtering applications.

Frequently Asked Questions (FAQ)

Q: Can the A104M15X7RF5TAA be used as a direct drop-in replacement for the UP050F104Z-A-BZ?

A: Yes. Both components feature 0.1 µF capacitance, 50V voltage rating, and axial through-hole mounting. The A104M15X7RF5TAA can be installed into existing PCB footprints designed for the UP050F104Z-A-BZ without modification. The improved tolerance specification (±20% vs. -20%, +80%) and extended operating temperature range (-55°C to 125°C vs. -25°C to 85°C) provide enhanced performance characteristics.

Q: What is the primary difference between the A104M15X7RF5TAA and UMK105B7104KV-FR?

A: The A104M15X7RF5TAA maintains axial through-hole mounting compatible with existing PCB designs. The UMK105B7104KV-FR uses surface-mount 0402 package technology, requiring PCB redesign and different assembly processes. Both maintain 0.1 µF / 50V specifications and ROHS3 compliance.

Q: Why does the UMK105B7104KV-FR have "Not For New Designs" status?

A: This classification indicates the component is available for legacy design support and existing production runs but should not be selected for new circuit development. The A104M15X7RF5TAA, with Active status, is the recommended choice for new applications requiring axial through-hole mounting.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The UP050F104Z-A-BZ, A104M15X7RF5TAA, and UMK105B7104KV-FR are all ROHS3 compliant, meeting current regulatory requirements for hazardous substance restrictions.

Q: What is the significance of the temperature coefficient difference between F and X7R?

A: The F-series temperature coefficient (original part) and X7R temperature coefficient (substitute parts) define capacitance stability across temperature variations. The X7R specification provides tighter capacitance tolerance across the extended temperature range, resulting in more predictable circuit performance in temperature-sensitive applications.

Q: Can the UMK105B7104KV-FR be used in applications designed for through-hole axial components?

A: No. The UMK105B7104KV-FR requires surface-mount assembly technology and 0402 package footprint. PCB redesign is necessary to accommodate this component. The A104M15X7RF5TAA is the appropriate choice for through-hole axial applications.

Q: What inventory availability should be considered for production planning?

A: The A104M15X7RF5TAA has 14,670 pieces in stock. The UMK105B7104KV-FR has 9,955 pieces in stock. Both components are available in quantities suitable for production requirements.