UP050CH111J-KFCZ Equivalent & Substitute Parts

Part Overview

The UP050CH111J-KFCZ is a 110 pF ceramic capacitor manufactured by Taiyo Yuden, rated for 50V with a C0H temperature coefficient and axial through-hole mounting. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The part operates across a temperature range of -25°C to 85°C and is suitable for general-purpose applications requiring stable capacitance in compact axial form factors.

Substiute Parts

UP050CH111J-KFCZ

Taiyo YudenIn Stock: 867UP050CH111J-KFCZ Datasheet

Current PartRFQ

SR151A111JAA

KYOCERA AVXIn Stock: 711SR151A111JAA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UP050CH111J-KFCZ is determined by the following critical parameters:

Electrical Compatibility:

• Capacitance value must match: 110 pF
• Tolerance must be equivalent or tighter: ±5%
• Voltage rating must equal or exceed the original: minimum 50V
• Temperature coefficient must provide equivalent or superior stability

Mechanical Compatibility:

• Mounting type must be through-hole
• Physical dimensions and lead configuration must accommodate existing PCB layouts

Compliance & Status:

• Active product status preferred for long-term availability
• Moisture sensitivity and regulatory compliance must be documented

The substitute part SR151A111JAA meets these criteria with matching capacitance and tolerance, elevated voltage rating (100V), improved temperature coefficient (C0G/NP0), and active product status. The primary trade-off involves package geometry change from axial to radial configuration, which requires PCB layout modification.

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution:

The SR151A111JAA provides functional equivalence with the following advantages:

• Active product status ensures continued availability and supply chain stability
• Elevated voltage rating (100V vs. 50V) provides additional design margin
• Improved temperature coefficient (C0G/NP0) delivers superior capacitance stability across temperature extremes
• Extended operating temperature range (-55°C ~ 125°C) accommodates broader environmental conditions
• ROHS3 compliance and REACH unaffected status align with current regulatory requirements

Design Considerations:

The transition from axial to radial package geometry requires PCB layout modification. Lead spacing changes from axial configuration to 0.100" (2.54mm) radial spacing. Physical dimensions shift from 0.087" diameter axial to 0.150" length x 0.100" width radial footprint. These changes necessitate PCB redesign and validation.

Frequently Asked Questions (FAQ)

Q: Can SR151A111JAA replace UP050CH111J-KFCZ in existing designs without modification?

A: Electrical substitution is valid. Capacitance, tolerance, and voltage specifications are compatible. However, package geometry differs fundamentally: axial versus radial configuration. PCB layout modification is required to accommodate the radial lead spacing of 0.100" (2.54mm).

Q: What is the significance of the voltage rating difference (50V vs. 100V)?

A: The substitute part's 100V rating exceeds the original 50V specification. This provides additional voltage margin and does not create incompatibility. The capacitor operates safely at voltages below its rated maximum.

Q: How do temperature coefficients C0H and C0G/NP0 differ in application?

A: Both coefficients indicate minimal capacitance variation across temperature. C0G/NP0 (substitute) provides tighter tolerance and is preferred for precision applications. C0H (original) is suitable for general-purpose use. The substitute's superior stability is a design improvement.

Q: Is the radial package suitable for high-density PCB layouts?

A: Radial packages occupy different footprint space than axial packages. The radial SR151A111JAA measures 0.150" length x 0.100" width with 0.100" lead spacing. Design space requirements differ from the original axial configuration. PCB layout must be evaluated for specific density constraints.

Q: What compliance certifications apply to the substitute part?

A: The SR151A111JAA is ROHS3 compliant and REACH unaffected. These certifications align with current environmental and regulatory standards. The original part's compliance status is not specified in available documentation.

Q: Are there inventory considerations for long-term supply?

A: The original UP050CH111J-KFCZ is obsolete with 758 pieces in current stock. The substitute SR151A111JAA is active product with 626 pieces available. Active product status provides superior long-term supply assurance and production continuity.