HT06CW684JC Equivalent & Substitute Parts

Part Overview

The HT06CW684JC is a 0.68 µF ±5% 100V ceramic capacitor with X7R temperature coefficient manufactured by KEMET. This radial through-hole component is designed for general-purpose applications requiring high-temperature operation across -55°C to 200°C. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

HT06CW684JC

KEMETIn Stock: 1011HT06CW684JC Datasheet

Current PartRFQ

C320C684J1R5TA

KEMETIn Stock: 1024C320C684J1R5TA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HT06CW684JC is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Capacitance value: 0.68 µF (exact match required)
• Tolerance: ±5% (matching tolerance band)
• Voltage rating: 100V (minimum acceptable rating)
• Temperature coefficient: X7R (ensures stable capacitance across temperature range)

Mechanical Equivalence Criteria:

• Mounting type: Through Hole (PCB assembly compatibility)
• Package configuration: Radial (lead orientation and spacing)
• Lead style: Straight (insertion and soldering compatibility)

The substitute part C320C684J1R5TA meets all electrical equivalence criteria. However, mechanical differences exist in physical dimensions and lead spacing, which must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Electrical Compatibility: The C320C684J1R5TA provides full electrical equivalence to the HT06CW684JC across capacitance, tolerance, voltage rating, and temperature coefficient. Both components are manufactured by KEMET and share identical electrical specifications for general-purpose applications.

Temperature Operating Range Consideration: The main part HT06CW684JC operates to 200°C, while the substitute C320C684J1R5TA operates to 125°C. Selection of the substitute is appropriate only for applications where the maximum operating temperature does not exceed 125°C.

Physical Footprint Differences: The substitute part is physically smaller with reduced lead spacing (0.100" versus 0.200"). PCB layout compatibility must be verified before substitution. The smaller footprint may allow direct replacement in space-constrained designs but requires confirmation that lead spacing matches PCB hole patterns.

Product Status and Compliance: The C320C684J1R5TA is active production status with ROHS3 compliance certification, ensuring long-term availability and regulatory alignment. The obsolete status of the main part supports transition to the active substitute for new designs and ongoing procurement.

Frequently Asked Questions (FAQ)

Q: Can C320C684J1R5TA directly replace HT06CW684JC in all applications?

A: Electrical substitution is valid for applications operating at or below 125°C. Applications requiring operation above 125°C require the original part or alternative high-temperature rated components. Physical footprint differences require PCB verification before implementation.

Q: What are the key differences between these two parts?

A: Both parts share identical capacitance (0.68 µF), tolerance (±5%), voltage rating (100V), and temperature coefficient (X7R). The main differences are operating temperature range (200°C versus 125°C), physical dimensions, and lead spacing. The substitute is smaller with tighter lead spacing.

Q: Is the C320C684J1R5TA suitable for high-temperature applications?

A: The C320C684J1R5TA operates to 125°C maximum. Applications requiring sustained operation above 125°C require components rated for higher temperatures, such as the original HT06CW684JC rated to 200°C.

Q: What does the lead spacing difference mean for PCB design?

A: Lead spacing of 0.100" (2.54mm) on the substitute versus 0.200" (5.08mm) on the original means the component footprint is different. PCB hole patterns must accommodate the tighter spacing. Existing PCB designs may require modification.

Q: Are there compliance or regulatory differences?

A: The C320C684J1R5TA carries ROHS3 compliance and REACH unaffected status. The original part specifications do not include these certifications. For applications requiring regulatory compliance documentation, the substitute provides explicit certification.

Q: What is the inventory status for these parts?

A: HT06CW684JC (obsolete): 930 pieces in stock. C320C684J1R5TA (active): 914 pieces in stock. The active status of the substitute ensures continued availability for future procurement.