HT55BB472KC Equivalent & Substitute Parts

Part Overview

The HT55BB472KC is a 4700 pF ceramic capacitor rated at 50V with X7R temperature coefficient, manufactured by KEMET. This radial through-hole component is designed for high-temperature applications with an operating range of -55°C to 200°C. The part is currently obsolete, making identification of suitable substitute components essential for ongoing system support and new production requirements.

Substiute Parts

HT55BB472KC

KEMETIn Stock: 1163HT55BB472KC Datasheet

Current PartRFQ

C052H472K5R5GA

KEMETIn Stock: 716C052H472K5R5GA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HT55BB472KC is determined by strict alignment with the following electrical and mechanical parameters:

Electrical Requirements:

• Capacitance value: 4700 pF (exact match required)
• Voltage rating: 50V minimum
• Tolerance: ±10% or tighter
• Temperature coefficient: X7R (mandatory for temperature stability)
• Operating temperature range: -55°C to 200°C (full range support required)

Mechanical Requirements:

• Mounting type: Through hole radial configuration
• Lead spacing: 0.200" (5.08mm) for PCB footprint compatibility
• Package style: Radial ceramic capacitor

The substitute part C052H472K5R5GA meets all electrical and mechanical criteria for direct substitution. Both parts share identical capacitance, voltage rating, tolerance, temperature coefficient, and operating temperature specifications. Lead spacing remains constant at 0.200" (5.08mm), ensuring PCB compatibility.

Parameter Comparison

Engineering Selection Recommendations

The C052H472K5R5GA is a direct electrical and mechanical substitute for the obsolete HT55BB472KC. Both components are manufactured by KEMET and share identical electrical specifications across all critical parameters: capacitance, voltage rating, tolerance, temperature coefficient, and operating temperature range.

Product Status Consideration: The HT55BB472KC is obsolete, while C052H472K5R5GA is active and currently in production. This status difference makes C052H472K5R5GA the appropriate selection for new designs and ongoing production support.

Compliance Status: C052H472K5R5GA carries ROHS3 compliance certification and REACH unaffected status, meeting current regulatory requirements for electronic components.

Physical Compatibility: Both parts maintain identical lead spacing of 0.200" (5.08mm), ensuring direct PCB footprint compatibility. The lead style differs (straight versus formed leads), but this does not affect electrical performance or board-level functionality.

Series Designation: The substitute part belongs to the RAD-LDD Industrial X7R HT200C series, representing an updated product line within KEMET's high-temperature ceramic capacitor portfolio.

Frequently Asked Questions (FAQ)

Q: Can C052H472K5R5GA replace HT55BB472KC in existing designs?

A: Yes. Both parts have identical electrical specifications (4700 pF, 50V, ±10%, X7R, -55°C to 200°C) and identical lead spacing (0.200" / 5.08mm). Direct substitution is supported at the PCB level.

Q: What is the difference between straight leads and formed leads?

A: Straight leads are pre-cut to standard length, while formed leads are pre-bent for insertion into PCB holes. Both styles accommodate standard through-hole assembly processes. Formed leads may provide improved insertion characteristics in automated assembly equipment.

Q: Does the lead style change affect circuit performance?

A: No. Lead style is a mechanical assembly feature and does not alter electrical performance, capacitance value, voltage rating, temperature stability, or ESL characteristics.

Q: Why is the substitute part listed as "Active" while the original is "Obsolete"?

A: The HT55BB472KC has been discontinued by KEMET. The C052H472K5R5GA represents the current production equivalent within KEMET's product line, ensuring long-term availability and supply chain continuity.

Q: Are there compliance differences between the two parts?

A: The substitute part (C052H472K5R5GA) carries explicit ROHS3 compliance and REACH unaffected certifications. These certifications confirm compliance with current environmental and regulatory standards for electronic components.

Q: What is the significance of the X7R temperature coefficient?

A: X7R specifies that capacitance variation remains within ±15% across the full operating temperature range (-55°C to 200°C). This stability is critical for high-temperature applications where capacitance drift must be minimized.

Q: Can I use a higher voltage-rated capacitor as a substitute?

A: Substitution requires exact voltage rating match (50V) based on circuit design specifications. Using a higher-rated capacitor may introduce unintended changes to circuit behavior and is not recommended without circuit re-evaluation.

Q: Is inventory availability a factor in substitution decisions?

A: Inventory status reflects current stock levels and does not affect technical substitution eligibility. The C052H472K5R5GA is an active product with ongoing manufacturing, ensuring long-term availability compared to the obsolete HT55BB472KC.