HT55CW822JC Equivalent & Substitute Parts

Part Overview

The HT55CW822JC is an 8200 pF ceramic capacitor rated for 100V 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 currently obsolete, necessitating identification of functionally equivalent alternatives that maintain critical electrical and mechanical specifications for direct board-level substitution.

Substiute Parts

HT55CW822JC

KEMETIn Stock: 857HT55CW822JC Datasheet

Current PartRFQ

C330C822J1G5TA

KEMETIn Stock: 1192C330C822J1G5TA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HT55CW822JC is determined by strict equivalence across the following parameters:

Electrical Parameters (Non-Negotiable):

• Capacitance value: 8200 pF
• Voltage rating: 100V minimum
• Tolerance: ±5%
• Lead spacing: 0.200" (5.08mm)

Mechanical Parameters (Non-Negotiable):

• Mounting type: Through hole
• Package configuration: Radial
• Lead style compatibility with PCB footprint

Temperature Performance: The original part specifies X7R temperature coefficient with operating range -55°C to 200°C. Substitute parts must maintain equivalent or superior temperature stability within the application's thermal envelope.

The identified substitute, C330C822J1G5TA, satisfies all critical electrical and mechanical parameters. However, the temperature coefficient differs (C0G/NP0 vs. X7R) and the operating temperature range is reduced (-55°C to 125°C vs. -55°C to 200°C). This substitution is valid only for applications not requiring the full high-temperature performance envelope of the original part.

Parameter Comparison

Engineering Selection Recommendations

C330C822J1G5TA as Substitute for HT55CW822JC:

This substitute maintains electrical equivalence (8200 pF, 100V, ±5% tolerance) and mechanical compatibility (through-hole radial, 0.200" lead spacing). Both components are manufactured by KEMET and share identical capacitance, voltage, and tolerance specifications.

Limiting Factors:

1. Temperature Coefficient Difference: The substitute uses C0G/NP0 temperature coefficient versus the original's X7R. C0G/NP0 provides superior temperature stability with minimal capacitance variation across temperature, whereas X7R permits greater capacitance drift. This difference is advantageous for precision applications but represents a specification change.

2. Operating Temperature Range: The substitute's maximum operating temperature is 125°C compared to the original's 200°C. Applications requiring sustained operation above 125°C cannot use this substitute.

3. Physical Dimensions: The substitute is physically larger (0.280" L x 0.160" W vs. 0.200" L x 0.100" W) with greater seated height (0.360" vs. 0.200"). PCB layout verification is required to confirm fit within available space.

4. Lead Configuration: The substitute features formed leads versus straight leads on the original. Formed leads may require different insertion techniques or tooling adjustments.

5. Compliance Status: The substitute is RoHS3 compliant and REACH unaffected, representing current manufacturing standards.

Substitution Validity: Use C330C822J1G5TA only in applications where operating temperature does not exceed 125°C and where PCB layout accommodates the larger physical footprint. For high-temperature applications requiring -55°C to 200°C operation, alternative sources for X7R-rated 8200 pF 100V capacitors must be evaluated.

Frequently Asked Questions (FAQ)

Q: Can C330C822J1G5TA be used as a direct replacement for HT55CW822JC?

A: Direct substitution is possible only if the application does not require operation above 125°C. The substitute meets all electrical specifications (capacitance, voltage, tolerance) and maintains the same lead spacing (0.200"). However, physical dimensions are larger, and the temperature coefficient differs. PCB layout and thermal environment must be evaluated before substitution.

Q: What is the difference between X7R and C0G/NP0 temperature coefficients?

A: X7R permits capacitance variation of ±15% across the -55°C to 200°C operating range. C0G/NP0 provides superior stability with minimal capacitance change across temperature. For general-purpose applications, C0G/NP0 is advantageous. For applications specifically designed around X7R characteristics, substitution may affect circuit performance.

Q: Will the larger physical size of C330C822J1G5TA cause PCB compatibility issues?

A: The substitute measures 0.280" L x 0.160" W with 0.360" seated height, compared to the original's 0.200" L x 0.100" W with 0.200" seated height. Lead spacing remains identical at 0.200" (5.08mm), so the footprint is compatible. However, the increased body dimensions may interfere with adjacent components or enclosure clearances. Physical layout verification is required.

Q: What is the significance of "formed leads" versus "straight leads"?

A: Straight leads insert vertically into PCB holes without pre-bending. Formed leads are pre-bent to match standard radial capacitor spacing. Both configurations use identical 0.200" lead spacing and are compatible with standard PCB footprints. Formed leads may simplify insertion in some automated assembly processes.

Q: Is the substitute part currently available?

A: C330C822J1G5TA is listed as active product status with 1115 pieces in stock, indicating current availability. The original HT55CW822JC is obsolete, making the substitute the recommended source for new procurement.

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

A: C330C822J1G5TA is RoHS3 compliant and REACH unaffected, representing current environmental compliance standards. Both parts carry EAR99 ECCN classification. The substitute aligns with modern regulatory requirements for new designs and manufacturing.