UP050CH910J-KFCZ Equivalent & Substitute Parts

Part Overview

The UP050CH910J-KFCZ is a 91 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 functionally equivalent alternatives for ongoing design support and procurement continuity. The primary challenge in substitution involves matching the capacitance value and tolerance while accommodating differences in voltage rating, temperature coefficient, and physical dimensions.

Substiute Parts

UP050CH910J-KFCZ

Taiyo YudenIn Stock: 734UP050CH910J-KFCZ Datasheet

Current PartRFQ

SA102A910JAA

KYOCERA AVXIn Stock: 1191SA102A910JAA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the UP050CH910J-KFCZ is based on the following critical parameters that must remain constant or be compatible with the original design:

Mandatory Matching Parameters:

• Capacitance value: 91 pF
• Tolerance: ±5%
• Mounting type: Through Hole
• Package type: Axial
• Lead style: Straight

Compatible Variation Parameters:

• Voltage rating may exceed the original 50V specification, provided the substitute does not introduce incompatibilities with circuit board layout or component spacing
• Temperature coefficient may differ if the substitute maintains performance within the original operating temperature range or provides superior stability
• Physical dimensions may vary within the constraints of standard axial component sizing

The SA102A910JAA from KYOCERA AVX meets all mandatory matching criteria while providing enhanced electrical characteristics through higher voltage rating and improved temperature stability.

Parameter Comparison

Engineering Selection Recommendations

The SA102A910JAA is a direct functional substitute for the UP050CH910J-KFCZ based on the following engineering criteria:

Electrical Compatibility: Both components share identical capacitance (91 pF) and tolerance (±5%), ensuring equivalent electrical performance in the circuit. The substitute's 200V rating exceeds the original 50V specification, providing additional design margin without introducing functional incompatibility.

Temperature Performance: The SA102A910JAA operates across a wider temperature range (-55°C ~ 125°C) compared to the original part (-25°C ~ 85°C). The C0G/NP0 temperature coefficient of the substitute provides superior temperature stability relative to the C0H coefficient of the original part.

Product Status and Compliance: The SA102A910JAA is classified as active, ensuring long-term availability and supply chain continuity. The part is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement.

Physical Considerations: The substitute 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 that the increased component size does not conflict with existing board design constraints or component spacing requirements.

Frequently Asked Questions (FAQ)

Q: Can the SA102A910JAA be used as a direct replacement for the UP050CH910J-KFCZ?

A: Yes. Both components have identical capacitance (91 pF) and tolerance (±5%), with matching through-hole axial mounting and straight lead configuration. The substitute's higher voltage rating and improved temperature coefficient provide enhanced performance characteristics. Physical dimension differences require PCB layout verification.

Q: What is the significance of the voltage rating difference between 50V and 200V?

A: The substitute's 200V rating exceeds the original 50V specification, providing additional electrical stress margin. This does not create incompatibility; rather, it allows the substitute to operate safely in circuits designed for the lower voltage. No circuit modification is required.

Q: How do the temperature coefficients C0H and C0G/NP0 affect substitution?

A: Both temperature coefficients are suitable for general-purpose applications. The C0G/NP0 coefficient of the substitute provides superior temperature stability across a wider operating range (-55°C ~ 125°C versus -25°C ~ 85°C). Applications requiring precise temperature compensation should evaluate the specific performance requirements of the circuit.

Q: Are there physical dimension constraints that affect PCB compatibility?

A: The substitute is slightly larger (0.100" Dia x 0.170" L) compared to the original (0.087" Dia x 0.126" L). Verify that the increased diameter and length do not conflict with existing PCB footprints, component spacing, or clearance requirements. Standard axial component spacing typically accommodates this size variation.

Q: What is the compliance status of the substitute part?

A: The SA102A910JAA is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement in regulated industries and markets.

Q: Why is the original part classified as obsolete?

A: The UP050CH910J-KFCZ is no longer in active production by Taiyo Yuden. The SA102A910JAA from KYOCERA AVX is an active product with confirmed long-term availability, ensuring supply chain continuity for new designs and ongoing production support.