HT55CN471JC Equivalent & Substitute Parts Reference

Part Overview

The HT55CN471JC is a 470 pF radial ceramic capacitor manufactured by KEMET, rated for 100V with C0G/NP0 temperature coefficient and ±5% tolerance. This component is designed for high-temperature applications with an operating range of -55°C to 200°C. The part is classified as obsolete, making identification of suitable substitutes necessary for ongoing design support and procurement planning. Substitute parts must maintain electrical equivalence while accommodating application-specific requirements.

Substiute Parts

HT55CN471JC

KEMETIn Stock: 924HT55CN471JC Datasheet

Current PartRFQ

C330C471JAG5TA

KEMETIn Stock: 889C330C471JAG5TA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the HT55CN471JC is based on the following criteria:

Electrical Parameters (Non-Negotiable):

• Capacitance value must be 470 pF
• Temperature coefficient must be C0G/NP0 for temperature stability
• Tolerance must be ±5% or tighter
• Voltage rating must be ≥100V

Mechanical Parameters (Non-Negotiable):

• Mounting type must be Through Hole Radial
• Lead spacing must be 0.200" (5.08mm) for PCB footprint compatibility

Operational Parameters (Application-Dependent):

• Operating temperature range may differ if application requirements are met
• Physical dimensions may vary provided lead spacing remains constant

The substitute part C330C471JAG5TA meets all electrical and mechanical criteria. It maintains the same capacitance, tolerance, and temperature coefficient while providing a higher voltage rating (250V) and active product status.

Parameter Comparison

Engineering Selection Recommendations

C330C471JAG5TA as Primary Substitute:

The C330C471JAG5TA is electrically and mechanically equivalent to the HT55CN471JC for applications operating within -55°C to 125°C. The substitute provides identical capacitance, tolerance, and temperature coefficient specifications. The higher voltage rating (250V vs. 100V) presents no compatibility issue and provides additional design margin.

Critical Consideration:

The operating temperature range differs between the two parts. The HT55CN471JC supports operation to 200°C, while the C330C471JAG5TA is rated to 125°C maximum. Applications requiring operation above 125°C cannot use this substitute without thermal analysis and validation.

Product Status Advantage:

The C330C471JAG5TA holds Active product status with ROHS3 compliance and REACH Unaffected designation, ensuring long-term availability and regulatory alignment compared to the obsolete HT55CN471JC.

Frequently Asked Questions (FAQ)

Q: Can C330C471JAG5TA replace HT55CN471JC in all applications?

A: Electrical and mechanical compatibility is confirmed. However, if your application requires operation above 125°C, the substitute is not suitable. Verify your operating temperature requirements before selection.

Q: Why is the voltage rating higher on the substitute part?

A: The C330C471JAG5TA is rated for 250V compared to the 100V rating of the HT55CN471JC. A higher voltage rating does not create compatibility issues; it provides additional safety margin. The capacitor will function correctly in circuits designed for 100V operation.

Q: Are the physical dimensions compatible with existing PCB layouts?

A: Lead spacing is identical at 0.200" (5.08mm), ensuring PCB footprint compatibility. The substitute is slightly larger in overall dimensions (0.280" L x 0.160" W vs. 0.200" L x 0.100" W), but lead spacing remains constant. Verify available board space before installation.

Q: What certifications apply to the substitute part?

A: The C330C471JAG5TA is ROHS3 compliant and REACH Unaffected. Both parts carry EAR99 ECCN classification and 8532.24.0060 HTSUS code.

Q: Is the tolerance specification identical?

A: Yes. Both parts maintain ±5% tolerance with C0G/NP0 temperature coefficient, ensuring equivalent frequency stability and capacitance accuracy across the operating temperature range.

Q: What is the lead spacing specification, and why does it matter?

A: Both parts have 0.200" (5.08mm) lead spacing. This specification is critical for PCB footprint compatibility. Identical lead spacing ensures the substitute can be installed in existing board layouts without modification.