HT14BW473KN Equivalent & Substitute Parts

Part Overview

The HT14BW473KN is a 0.047 µF ceramic capacitor rated for 50V with X7R temperature coefficient, manufactured by KEMET. This component is designed for general-purpose applications requiring high-temperature operation across the range of -55°C to 200°C. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility for existing designs or replacement inventory requirements.

Substiute Parts

HT14BW473KN

KEMETIn Stock: 1075HT14BW473KN Datasheet

Current PartRFQ

SA105C473JAR

KYOCERA AVXIn Stock: 835SA105C473JAR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the HT14BW473KN is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Capacitance value must be 0.047 µF
• Voltage rating must be 50V or higher
• Temperature coefficient must be X7R to ensure consistent capacitance across temperature variations
• Operating temperature range of the substitute must encompass or exceed -55°C to 200°C

Mechanical Parameters:

• Mounting type must be Through Hole
• Package configuration must be Axial
• Lead style must be Straight for PCB insertion compatibility

Performance Parameters:

• Tolerance specification of the substitute must be equal to or tighter than ±10%

The SA105C473JAR meets the core electrical requirements (0.047 µF, 50V, X7R) and mechanical requirements (Through Hole Axial, Straight leads). However, the operating temperature range differs, which must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

SA105C473JAR Substitution Criteria:

The SA105C473JAR is electrically and mechanically compatible with the HT14BW473KN for applications where the operating temperature does not exceed 125°C. The substitute part provides the following advantages:

• Active product status ensures continued availability and supply chain reliability
• ROHS3 compliance and REACH unaffected status meet current environmental regulations
• Tighter tolerance specification (±5% versus ±10%) provides improved capacitance accuracy
• Smaller physical dimensions (0.100" Dia x 0.170" L) may provide PCB layout benefits in space-constrained designs

Critical Limitation:

The SA105C473JAR operating temperature range (-55°C to 125°C) does not extend to the 200°C upper limit of the original HT14BW473KN. Applications requiring sustained operation above 125°C cannot use this substitute without thermal performance degradation.

Compliance Considerations:

The SA105C473JAR is supplied in Tape & Reel packaging, whereas the original part status does not specify packaging format. Procurement specifications must account for packaging requirements and minimum order quantities associated with reel formats.

Frequently Asked Questions (FAQ)

Q: Can the SA105C473JAR be used as a direct replacement in all applications?

A: The SA105C473JAR is electrically and mechanically compatible for applications operating within -55°C to 125°C. Applications requiring operation above 125°C require alternative sourcing, as the substitute part is not rated for the full 200°C upper temperature limit of the original HT14BW473KN.

Q: What is the significance of the tolerance difference between ±10% and ±5%?

A: The SA105C473JAR tolerance of ±5% is tighter than the original ±10% specification. This means the substitute part will maintain capacitance values closer to the nominal 0.047 µF across the operating range. Circuits designed for ±10% tolerance will function with ±5% tolerance components without modification.

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

A: The SA105C473JAR is significantly smaller (0.100" Dia x 0.170" L) compared to the HT14BW473KN (0.155" Dia x 0.400" L). While both are axial through-hole components with straight leads, the reduced size may require PCB layout verification to confirm lead spacing and mounting hole compatibility. Physical dimensions must be confirmed against specific PCB design files.

Q: What packaging format is the SA105C473JAR supplied in?

A: The SA105C473JAR is supplied in Tape & Reel (TR) format. This differs from the original part, which does not specify packaging. Procurement must account for reel quantities and handling requirements associated with automated assembly processes.

Q: Are there compliance or regulatory differences between the two parts?

A: The SA105C473JAR is ROHS3 compliant and REACH unaffected. The original HT14BW473KN compliance status is not specified in the provided data. For applications subject to environmental regulations, the SA105C473JAR meets current compliance requirements.

Q: What should be done if the application requires operation above 125°C?

A: Applications requiring sustained operation above 125°C cannot use the SA105C473JAR. Alternative equivalent parts with extended temperature ratings must be sourced. Consult component manufacturers for high-temperature ceramic capacitor alternatives rated to 200°C or higher.