HT55CN330JC Equivalent & Substitute Parts

Part Overview

The HT55CN330JC is a 33 pF ceramic capacitor rated at 100V with C0G/NP0 temperature coefficient, manufactured by KEMET. This radial through-hole component is designed for general-purpose applications requiring stable capacitance across a wide temperature range (-55°C to 200°C). The part is classified as obsolete, necessitating identification of functionally equivalent alternatives from active product lines to ensure design continuity and procurement availability.

Substiute Parts

HT55CN330JC

KEMETIn Stock: 835HT55CN330JC Datasheet

Current PartRFQ

1C20C0G330J100B

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 11861C20C0G330J100B Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HT55CN330JC is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Capacitance value: 33 pF (exact match required)
• Tolerance: ±5% (ensures circuit performance within design specifications)
• Voltage rating: 100V (minimum acceptable rating)
• Temperature coefficient: C0G/NP0 (guarantees stable capacitance across temperature variations)

Mechanical Parameters:

• Mounting type: Through Hole (PCB assembly compatibility)
• Package configuration: Radial (physical footprint and lead orientation)
• Lead spacing: 0.200" (5.08mm) (PCB hole pattern compatibility)
• Lead style: Straight (insertion and soldering compatibility)

The substitute part 1C20C0G330J100B meets all critical electrical and mechanical parameters. Differences in physical dimensions (height and width) and operating temperature range do not preclude substitution when the application requirements fall within the substitute's specifications.

Parameter Comparison

Engineering Selection Recommendations

The 1C20C0G330J100B from Vishay Beyschlag/Draloric/BC Components is a direct functional equivalent for the obsolete HT55CN330JC. Selection of this substitute is based on the following engineering criteria:

Electrical Equivalence: Both parts share identical capacitance (33 pF), tolerance (±5%), voltage rating (100V), and temperature coefficient (C0G/NP0), ensuring circuit performance remains unchanged.

Mechanical Compatibility: Both components feature identical lead spacing (0.200" / 5.08mm) and straight lead style, enabling direct PCB footprint compatibility without layout modifications.

Product Status: The substitute is classified as Active, ensuring long-term procurement availability and supply chain stability compared to the obsolete original part.

Compliance: The substitute meets ROHS3 and REACH compliance standards, satisfying current regulatory requirements for electronic component procurement.

Operating Temperature Consideration: The substitute operates across -55°C to 125°C, which is a subset of the original part's -55°C to 200°C range. Substitution is appropriate for applications where the maximum operating temperature does not exceed 125°C. Applications requiring operation above 125°C require alternative sourcing strategies.

Physical Dimensions: The substitute exhibits a maximum seated height of 0.250" (6.35mm) compared to the original 0.200" (5.08mm). Verify adequate clearance in the PCB assembly to prevent component interference or mechanical stress.

Frequently Asked Questions (FAQ)

Q: Can the 1C20C0G330J100B replace the HT55CN330JC in all applications?

A: The substitute is electrically and mechanically equivalent for applications operating within -55°C to 125°C. Applications requiring operation above 125°C require verification that the substitute's temperature range is acceptable. Physical clearance must be confirmed due to the increased seated height (0.250" vs. 0.200").

Q: What does C0G/NP0 temperature coefficient mean?

A: C0G and NP0 are equivalent designations for ceramic capacitors with near-zero temperature coefficient. This means capacitance remains stable across the operating temperature range, typically within ±30 ppm/°C. This characteristic is critical for precision circuits and frequency-dependent applications.

Q: Are there any PCB layout changes required when substituting this part?

A: No layout changes are required. Both parts use identical lead spacing (0.200" / 5.08mm) and straight leads. However, verify that the increased height of the substitute (0.250" vs. 0.200") does not create clearance issues with adjacent components or enclosure constraints.

Q: What is the significance of the ±5% tolerance specification?

A: The ±5% tolerance indicates that the actual capacitance value will fall within the range of 31.35 pF to 34.65 pF. Both the original and substitute parts share this tolerance, ensuring equivalent circuit performance and design margin.

Q: Why is the operating temperature range different between the two parts?

A: The original HT55CN330JC is rated to 200°C due to KEMET's high-temperature ceramic formulation. The substitute 1C20C0G330J100B uses a standard ceramic formulation rated to 125°C. Selection depends on application requirements. If operation above 125°C is necessary, alternative high-temperature sources must be identified.

Q: Is the substitute RoHS compliant?

A: Yes, the 1C20C0G330J100B is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic component procurement in most jurisdictions.

Q: What is the lead spacing and why is it important?

A: Lead spacing of 0.200" (5.08mm) refers to the distance between the two radial leads. This dimension determines PCB hole pattern compatibility. Both parts share identical lead spacing, ensuring direct footprint compatibility without PCB redesign.