UP050F473Z-A-BZ Equivalent & Substitute Parts

Part Overview

The UP050F473Z-A-BZ is a 0.047 µF ceramic capacitor rated for 50V with axial through-hole mounting. Manufactured by Taiyo Yuden, this component features an F temperature coefficient and operates across -25°C to 85°C. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing production and maintenance applications. Substitute parts must maintain the same capacitance value, voltage rating, and electrical performance characteristics while accommodating different mounting technologies and package formats.

Substiute Parts

UP050F473Z-A-BZ

Taiyo YudenIn Stock: 804UP050F473Z-A-BZ Datasheet

Current PartRFQ

UMK105B7473KV-FR

Taiyo YudenIn Stock: 137790UMK105B7473KV-FR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UP050F473Z-A-BZ is determined by electrical equivalence across the following critical parameters:

Electrical Compatibility Criteria:

• Capacitance value: 0.047 µF (exact match required)
• Voltage rating: 50V minimum (equal or higher acceptable)
• Tolerance: Must accommodate circuit design requirements

Compliance & Certification:

• RoHS3 compliance maintained across all substitutes
• Moisture sensitivity level: MSL 1 (Unlimited)
• ECCN classification: EAR99

Mechanical & Mounting Considerations:

• Original part uses axial through-hole mounting
• Substitutes may employ surface-mount technology (MLCC)
• Package format changes require circuit board redesign

The substitute UMK105B7473KV-FR maintains identical capacitance and voltage specifications while offering improved tolerance (±10% versus -20%, +80%) and extended operating temperature range (-55°C ~ 125°C). This part is classified as "Not For New Designs," indicating limited future availability.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Mounting Technology): Direct axial through-hole substitutes with identical electrical specifications are not provided in the available substitute list. The obsolete status of the UP050F473Z-A-BZ indicates limited availability of equivalent axial components from current production lines.

For Circuit Board Redesign (Surface Mount Alternative): The UMK105B7473KV-FR provides electrical equivalence with the following considerations:

• Identical capacitance (0.047 µF) and voltage rating (50V) ensure functional compatibility
• Improved tolerance (±10%) provides tighter capacitance control compared to the original -20%, +80% specification
• Extended operating temperature range (-55°C ~ 125°C) exceeds original specifications
• X7R temperature coefficient offers superior temperature stability versus F coefficient
• Surface-mount 0402 package requires circuit board layout modification
• ROHS3 compliance and MSL 1 rating maintain environmental and reliability standards
• "Not For New Designs" status indicates this substitute also faces future availability constraints

Compliance Verification: Both parts maintain ROHS3 compliance, EAR99 ECCN classification, and unlimited moisture sensitivity rating, ensuring regulatory and supply chain compatibility.

Frequently Asked Questions (FAQ)

Q: Can the UMK105B7473KV-FR be used as a direct replacement for the UP050F473Z-A-BZ?

A: Electrical substitution is valid. Both parts share identical capacitance (0.047 µF) and voltage rating (50V). However, mounting technology differs: the original uses axial through-hole while the substitute uses surface-mount MLCC technology. Circuit board redesign is required for physical implementation.

Q: What is the significance of the tolerance difference between -20%, +80% and ±10%?

A: The original part exhibits asymmetrical tolerance with wider negative deviation. The substitute provides symmetrical ±10% tolerance, resulting in tighter capacitance control. Circuit designs must verify that the improved tolerance does not introduce unintended performance changes.

Q: Why is the UMK105B7473KV-FR classified as "Not For New Designs"?

A: This classification indicates the manufacturer is phasing out this product line. While currently available in inventory (137,764 pcs), long-term supply cannot be guaranteed. New designs should identify alternative components with active production status.

Q: How do the temperature coefficients F and X7R affect circuit performance?

A: Temperature coefficient F indicates capacitance variation with temperature according to EIA specifications. X7R provides superior temperature stability across the -55°C to 125°C range. Circuit applications requiring stable capacitance across wide temperature ranges benefit from the X7R characteristic.

Q: Is the extended operating temperature range (-55°C ~ 125°C) compatible with the original design specification (-25°C ~ 85°C)?

A: Yes. The substitute's extended range encompasses the original specification. Designs operating within -25°C to 85°C experience no thermal performance degradation. Designs requiring operation beyond these limits benefit from the extended range.

Q: What are the package dimension implications of switching from axial to 0402 surface mount?

A: The 0402 package measures 1.00mm × 0.50mm with 0.65mm maximum thickness, compared to the axial 2.20mm diameter × 3.20mm length. Surface-mount implementation requires PCB redesign with appropriate pad layout, solder reflow capability, and automated assembly equipment.

Q: Are both parts RoHS3 compliant?

A: Yes. Both UP050F473Z-A-BZ and UMK105B7473KV-FR maintain ROHS3 compliance, ensuring compatibility with environmental regulations and supply chain requirements.

Q: What inventory considerations apply to substitution?

A: The original part (742 pcs) is obsolete with limited stock. The substitute (137,764 pcs) offers significantly higher availability but carries "Not For New Designs" status. Long-term production planning should identify components with active manufacturing status.