UP050CH751J-KFCZ Equivalent & Substitute Parts

Part Overview

The UP050CH751J-KFCZ is a 750 pF ceramic capacitor rated at 50V with C0H temperature coefficient, manufactured by Taiyo Yuden in axial through-hole configuration. This part is classified as obsolete, necessitating identification of equivalent alternatives for ongoing design support and procurement continuity. Substitute parts must maintain the same capacitance value, tolerance, and mounting type while accommodating potential differences in voltage rating and temperature coefficient specifications.

Substiute Parts

UP050CH751J-KFCZ

Taiyo YudenIn Stock: 886UP050CH751J-KFCZ Datasheet

Current PartRFQ

SA101A751JAA

KYOCERA AVXIn Stock: 1041SA101A751JAA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UP050CH751J-KFCZ is based on the following critical parameters that must remain constant or be compatible:

Fixed Parameters (Must Match):

• Capacitance: 750 pF
• Tolerance: ±5%
• Mounting Type: Through Hole
• Package / Case: Axial
• Lead Style: Straight

Flexible Parameters (May Vary Within Design Constraints):

• Voltage Rating: Substitute parts rated at higher voltages (100V) are acceptable for 50V applications
• Temperature Coefficient: C0G/NP0 provides superior stability compared to C0H and is acceptable as a substitute
• Operating Temperature Range: Extended ranges (-55°C ~ 125°C) are compatible with original specification (-25°C ~ 85°C)
• Product Status: Active status preferred over obsolete for long-term availability

The SA101A751JAA from KYOCERA AVX meets all fixed parameters and provides enhanced performance characteristics through higher voltage rating and improved temperature stability.

Parameter Comparison

Engineering Selection Recommendations

The SA101A751JAA is a direct functional substitute for the UP050CH751J-KFCZ based on the following engineering criteria:

Capacitance and Tolerance Equivalence: Both parts provide identical 750 pF capacitance at ±5% tolerance, ensuring circuit performance remains unchanged.

Voltage Rating Compatibility: The substitute part rated at 100V exceeds the original 50V specification, providing additional design margin and reliability in the application circuit.

Temperature Coefficient Improvement: The C0G/NP0 temperature coefficient of the substitute part offers superior frequency and temperature stability compared to the C0H coefficient of the original part, resulting in improved circuit performance across the operating temperature range.

Product Status and Availability: The substitute part maintains active product status with ROHS3 compliance and REACH unaffected designation, ensuring long-term procurement availability and regulatory compliance.

Physical Compatibility Consideration: The substitute part exhibits slightly larger physical dimensions (0.100" Dia x 0.170" L versus 0.087" Dia x 0.126" L). PCB layout verification is required to confirm mechanical fit within the original mounting footprint.

Frequently Asked Questions (FAQ)

Q: Can the SA101A751JAA replace the UP050CH751J-KFCZ in all applications?

A: The SA101A751JAA is electrically compatible for applications requiring 750 pF ±5% capacitance. The higher 100V rating and improved C0G/NP0 temperature coefficient provide enhanced performance. Physical dimensions are slightly larger; PCB layout must accommodate the increased size.

Q: What is the difference between C0H and C0G/NP0 temperature coefficients?

A: C0H and C0G/NP0 are both temperature-stable ceramic dielectric types. C0G/NP0 provides superior stability and is preferred for precision applications. Both are acceptable for general-purpose applications within their specified operating temperature ranges.

Q: Is the 100V rating of the substitute part compatible with a 50V circuit?

A: Yes. A capacitor rated at 100V operates safely in a 50V circuit. The higher voltage rating provides additional safety margin and does not affect circuit functionality.

Q: Will the larger physical dimensions of the SA101A751JAA cause compatibility issues?

A: The substitute part is 0.013" larger in diameter and 0.044" longer than the original part. PCB layout and component spacing must be verified to ensure the larger axial package fits within the available mounting area.

Q: Are there compliance differences between the two parts?

A: The substitute part is ROHS3 compliant and REACH unaffected. The original part specifications do not include these compliance designations. For applications requiring regulatory compliance, the substitute part meets current environmental standards.

Q: What is the inventory status of these parts?

A: The original UP050CH751J-KFCZ has 815 pieces in stock but is classified as obsolete. The substitute SA101A751JAA has 950 pieces in stock and maintains active product status, ensuring continued availability.