HT05CB222JC Equivalent & Substitute Parts Reference

Part Overview

The HT05CB222JC is a 2200 pF ceramic capacitor rated at 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 for ongoing system support and new designs requiring this capacitance and voltage rating.

Key Parameters

Parameter	Value	Significance for Substitution
Capacitance	2200 pF	Primary electrical specification; substitute must match exactly
Voltage Rating	100V	Critical safety and reliability parameter; substitute must meet or exceed
Temperature Coefficient	X7R	Determines capacitance stability across temperature range; must match for circuit performance
Tolerance	±5%	Acceptable variation in capacitance value; substitute must match or be tighter
Mounting Type	Through Hole Radial	Determines PCB compatibility and lead configuration
Lead Spacing	0.100" (2.54mm)	Physical footprint requirement for PCB hole pattern
Operating Temperature Range	-55°C to 200°C	Application environment requirement; substitute must support minimum range

Substitute Part Grouping Explanation

Substitution eligibility for the HT05CB222JC is determined by strict alignment with the following core electrical and mechanical parameters:

Mandatory Matching Parameters:

Capacitance value: 2200 pF (no tolerance variation acceptable)
Voltage rating: 100V minimum
Temperature coefficient: X7R (ensures equivalent capacitance stability)
Tolerance: ±5% or tighter
Mounting configuration: Through-hole radial
Lead spacing: 0.100" (2.54mm)
Lead style: Straight

Acceptable Variations:

Physical dimensions (length and height) may differ provided lead spacing remains 0.100"
Operating temperature range may be narrower than the original -55°C to 200°C specification, provided the application environment falls within the substitute's rated range
Product status may transition from obsolete to active
Packaging format and inventory availability may differ

The SR151C222JAR meets all mandatory matching parameters and qualifies as a direct electrical and mechanical substitute.

Parameter Comparison

Parameter	HT05CB222JC (KEMET)	SR151C222JAR (KYOCERA AVX)	Match Status
Capacitance	2200 pF	2200 pF	Exact Match
Voltage Rating	100V	100V	Exact Match
Temperature Coefficient	X7R	X7R	Exact Match
Tolerance	±5%	±5%	Exact Match
Mounting Type	Through Hole Radial	Through Hole Radial	Exact Match
Lead Spacing	0.100" (2.54mm)	0.100" (2.54mm)	Exact Match
Lead Style	Straight	Straight	Exact Match
Length	0.200" (5.08mm)	0.150" (3.81mm)	Substitute is Shorter
Height - Seated (Max)	0.200" (5.08mm)	0.150" (3.81mm)	Substitute is Shorter
Operating Temperature Range	-55°C to 200°C	-55°C to 125°C	Substitute Range is Narrower
Product Status	Obsolete	Active	Substitute is Current
RoHS Status	Not Specified	ROHS3 Compliant	Substitute Certified

Engineering Selection Recommendations

The SR151C222JAR is a qualified substitute for the HT05CB222JC based on electrical and mechanical parameter alignment. Selection considerations:

Electrical Compatibility: Both components provide identical capacitance (2200 pF), voltage rating (100V), temperature coefficient (X7R), and tolerance (±5%). Circuit performance will be equivalent.

Physical Compatibility: Lead spacing (0.100") and lead style (straight) are identical, ensuring PCB footprint compatibility. The SR151C222JAR features reduced physical dimensions (0.150" length and height versus 0.200"), which provides a space advantage and does not impact electrical function.

Temperature Range Consideration: The HT05CB222JC operates to 200°C, while the SR151C222JAR operates to 125°C. Applications requiring sustained operation above 125°C cannot use the SR151C222JAR. Applications with maximum operating temperatures at or below 125°C are fully compatible.

Product Status and Compliance: The SR151C222JAR is an active product with ROHS3 compliance certification, ensuring ongoing availability and regulatory alignment for new designs and production continuity.

Frequently Asked Questions (FAQ)

Q: Can the SR151C222JAR be used as a direct replacement for the HT05CB222JC in all applications?

A: The SR151C222JAR is electrically and mechanically compatible for applications where the maximum operating temperature does not exceed 125°C. The HT05CB222JC supports operation to 200°C. If your application requires sustained operation above 125°C, the SR151C222JAR is not suitable.

Q: Why are the physical dimensions different between these two parts?

A: The SR151C222JAR has a more compact form factor (0.150" versus 0.200" in length and height) while maintaining identical lead spacing and electrical specifications. This is a design improvement in the substitute part and does not affect circuit function.

Q: Are there any PCB layout changes required when switching from HT05CB222JC to SR151C222JAR?

A: No PCB layout changes are required. Both components use 0.100" (2.54mm) lead spacing and straight lead configuration. The component will fit the existing PCB footprint without modification.

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

A: X7R indicates that capacitance variation across the operating temperature range is limited to ±15% maximum. This specification ensures predictable circuit behavior across temperature extremes. Both parts carry the X7R designation, guaranteeing equivalent temperature stability.

Q: Is the SR151C222JAR RoHS compliant?

A: Yes, the SR151C222JAR is ROHS3 compliant. The HT05CB222JC RoHS status is not specified in available documentation.

Q: Can I use the SR151C222JAR in a circuit designed for 200°C operation?

A: No. The SR151C222JAR is rated to 125°C maximum. Using it in a circuit requiring 200°C operation will exceed component specifications and may result in failure. The HT05CB222JC must be sourced for such applications, or an alternative high-temperature ceramic capacitor must be identified.

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