HT55CN220JC Equivalent & Substitute Parts

Part Overview

The HT55CN220JC is a 22 pF ceramic capacitor rated at 100V with C0G/NP0 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 functionally equivalent alternatives necessary for ongoing system support, repair, and redesign applications. Substitute parts must maintain electrical performance across the specified voltage and temperature ranges while accommodating mechanical form factor constraints.

Key Parameters

Parameter	Value	Criticality for Substitution
Capacitance	22 pF	Critical
Tolerance	±5%	Critical
Voltage Rating	100V	Critical
Temperature Coefficient	C0G, NP0	Critical
Operating Temperature Range	-55°C ~ 200°C	Critical
Mounting Type	Through Hole	Critical
Package Type	Radial	Critical
Lead Spacing	0.200" (5.08mm)	Critical
Lead Style	Straight	Critical

Substitute Part Grouping Explanation

Substitution eligibility for the HT55CN220JC is determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters must match or exceed the original specification:

Electrical Parameters (Must Match):

Capacitance value: 22 pF
Tolerance: ±5%
Voltage rating: 100V minimum
Temperature coefficient: C0G or NP0 designation

Mechanical Parameters (Must Match):

Mounting type: Through hole
Package configuration: Radial
Lead spacing: 0.200" (5.08mm)
Lead style: Straight

Operating Conditions:

Operating temperature range must support the application's thermal requirements

The substitute part 1C20C0G220J100B meets all critical electrical parameters and mechanical form factors. However, the operating temperature range differs: the substitute supports -55°C to 125°C, which is narrower than the original -55°C to 200°C specification. This difference must be evaluated against actual application requirements.

Parameter Comparison

Parameter	HT55CN220JC (KEMET)	1C20C0G220J100B (Vishay)	Match Status
Capacitance	22 pF	22 pF	Match
Tolerance	±5%	±5%	Match
Voltage Rating	100V	100V	Match
Temperature Coefficient	C0G, NP0	C0G, NP0	Match
Operating Temperature Range	-55°C ~ 200°C	-55°C ~ 125°C	Partial Match
Mounting Type	Through Hole	Through Hole	Match
Package Type	Radial	Radial	Match
Lead Spacing	0.200" (5.08mm)	0.200" (5.08mm)	Match
Lead Style	Straight	Straight	Match
Product Status	Obsolete	Active	Substitute Available

Engineering Selection Recommendations

The 1C20C0G220J100B from Vishay Beyschlag/Draloric/BC Components is the identified equivalent substitute for the obsolete HT55CN220JC. This substitute maintains full electrical equivalence in capacitance, tolerance, voltage rating, and temperature coefficient specifications. Both components are rated for C0G/NP0 stability and support identical lead spacing and radial through-hole mounting configurations.

The primary consideration for selection is the operating temperature range. The original HT55CN220JC supports -55°C to 200°C operation, while the substitute 1C20C0G220J100B supports -55°C to 125°C. Applications operating above 125°C require verification that the substitute meets thermal requirements. For applications within the -55°C to 125°C range, the substitute provides full functional equivalence.

The substitute part carries Active product status with ROHS3 compliance and REACH unaffected certification, ensuring long-term availability and regulatory alignment. The substitute is available in bulk packaging with confirmed inventory.

Frequently Asked Questions (FAQ)

Q: Can the 1C20C0G220J100B directly replace the HT55CN220JC in all applications?

A: The substitute provides direct electrical and mechanical compatibility for applications operating within -55°C to 125°C. Applications requiring operation above 125°C must evaluate thermal performance requirements against the substitute's maximum operating temperature specification.

Q: Are the physical dimensions compatible for PCB mounting?

A: Both components feature identical lead spacing of 0.200" (5.08mm) and straight lead styles, ensuring PCB footprint compatibility. The substitute has a slightly larger seated height (0.250" vs. 0.200") and width (0.125" vs. 0.100"), which must be verified against available board space and component clearance requirements.

Q: What is the difference between C0G and NP0 designations?

A: C0G and NP0 are equivalent designations for the same temperature coefficient characteristic. Both terms describe capacitors with minimal capacitance change across the operating temperature range. The substitute and original part are equivalent in this specification.

Q: Is the substitute part RoHS compliant?

A: Yes, the 1C20C0G220J100B is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the inventory status of the substitute part?

A: The 1C20C0G220J100B is listed as Active product status with 1006 pieces available in new original condition, ensuring supply availability for production and repair applications.

Q: Are there tolerance differences between the original and substitute?

A: Both components maintain ±5% tolerance specifications, ensuring equivalent capacitance accuracy for circuit design calculations.

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