SR151A331KAT Equivalent & Substitute Parts

Part Overview

The SR151A331KAT is a 330 pF ceramic capacitor manufactured by KYOCERA AVX from the SkyCap® SR series. This through-hole radial component operates at 100V with C0G/NP0 temperature coefficient and ±10% tolerance. The part is ROHS3 compliant and maintains active product status. Alternative models are identified to support procurement flexibility, inventory optimization, and application-specific tolerance requirements.

Key Parameters

Parameter	Value
Capacitance	330 pF
Voltage Rating	100V
Temperature Coefficient	C0G, NP0
Operating Temperature Range	-55°C ~ 125°C
Mounting Type	Through Hole
Package Type	Radial
Lead Spacing	0.100" (2.54mm)
Physical Dimensions	0.150" L x 0.100" W (3.81mm x 2.54mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the SR151A331KAT is determined by the following critical parameters: capacitance value (330 pF), voltage rating (100V), temperature coefficient (C0G/NP0), mounting type (through hole radial), physical dimensions, and lead spacing. All identified substitutes maintain these core electrical and mechanical specifications.

Substitutes are categorized into two groups:

Upgrade Substitutes (SR151A331JAR, SR151A331JARTR1): These parts share identical electrical specifications with the main part but feature improved tolerance (±5% versus ±10%). They differ only in packaging format (bulk or cut tape).

Parametric Equivalent (SR151A331KAR): This part maintains identical electrical and mechanical specifications as the main part, including ±10% tolerance and bulk packaging. It serves as a direct parametric equivalent.

Parameter Comparison

Parameter	SR151A331KAT	SR151A331JAR	SR151A331JARTR1	SR151A331KAR
Manufacturer	KYOCERA AVX	KYOCERA AVX	KYOCERA AVX	KYOCERA AVX
Series	SkyCap® SR	SkyCap® SR	SkyCap® SR	SkyCap® SR
Capacitance	330 pF	330 pF	330 pF	330 pF
Tolerance	±10%	±5%	±5%	±10%
Voltage Rating	100V	100V	100V	100V
Temperature Coefficient	C0G, NP0	C0G, NP0	C0G, NP0	C0G, NP0
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package Type	Radial	Radial	Radial	Radial
Dimensions	0.150" L x 0.100" W (3.81mm x 2.54mm)	0.150" L x 0.100" W (3.81mm x 2.54mm)	0.150" L x 0.100" W (3.81mm x 2.54mm)	0.150" L x 0.100" W (3.81mm x 2.54mm)
Lead Spacing	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Packaging Format	Bulk	Bulk	Cut Tape (CT)	Bulk
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts maintain active product status and ROHS3 compliance, ensuring regulatory alignment with the original SR151A331KAT specification.

For applications requiring tighter capacitance tolerance, SR151A331JAR (bulk packaging) and SR151A331JARTR1 (cut tape packaging) provide ±5% tolerance while maintaining all other electrical and mechanical parameters. These upgrades are suitable for precision circuit applications where tolerance stack-up is a design consideration.

SR151A331KAR serves as a direct parametric equivalent with identical tolerance (±10%) and bulk packaging, supporting one-to-one replacement scenarios where packaging format and tolerance specifications match the original design.

Packaging format selection between bulk and cut tape depends on assembly process requirements and inventory management practices. Electrical performance and mechanical compatibility remain constant across all packaging options.

Frequently Asked Questions (FAQ)

Q: Can SR151A331JAR replace SR151A331KAT in any application?

A: Yes. SR151A331JAR is electrically and mechanically compatible. The ±5% tolerance of SR151A331JAR is tighter than the ±10% tolerance of SR151A331KAT, making it suitable for all applications where SR151A331KAT is specified. The only difference is packaging format (bulk).

Q: What is the difference between SR151A331JARTR1 and SR151A331JAR?

A: Both parts are electrically identical with ±5% tolerance and 330 pF capacitance at 100V. The difference is packaging format: SR151A331JAR is supplied in bulk, while SR151A331JARTR1 is supplied in cut tape (CT) format. Physical dimensions and lead spacing are identical.

Q: Is SR151A331KAR a direct replacement for SR151A331KAT?

A: Yes. SR151A331KAR is a parametric equivalent with identical capacitance, tolerance (±10%), voltage rating, temperature coefficient, dimensions, and lead spacing. Both are supplied in bulk packaging.

Q: Are all substitutes ROHS3 compliant?

A: Yes. SR151A331KAT, SR151A331JAR, SR151A331JARTR1, and SR151A331KAR are all ROHS3 compliant.

Q: Can I use cut tape packaging (SR151A331JARTR1) in place of bulk packaging (SR151A331KAT)?

A: Yes, from an electrical and mechanical standpoint. The component specifications are identical. Compatibility depends on your assembly equipment and procurement workflow. Cut tape format is suitable for automated pick-and-place assembly, while bulk packaging is typical for manual assembly or wave soldering processes.

Q: What determines substitutability for this ceramic capacitor?

A: Substitutability is determined by capacitance value (330 pF), voltage rating (100V), temperature coefficient (C0G/NP0), operating temperature range (-55°C ~ 125°C), mounting type (through hole), package type (radial), physical dimensions (0.150" L x 0.100" W), and lead spacing (0.100"). All identified substitutes maintain these specifications.

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