SR151A181KAT Equivalent & Substitute Parts

Part Overview

The SR151A181KAT is a 180 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% capacitance tolerance. The part is ROHS3 compliant and actively produced. Equivalent and substitute parts are identified when electrical specifications, mechanical dimensions, and compliance certifications align with application requirements.

Substiute Parts

SR151A181KAT

KYOCERA AVXIn Stock: 1080SR151A181KAT Datasheet

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SR151A181JAR

KYOCERA AVXIn Stock: 1628SR151A181JAR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SR151A181KAT is determined by the following criteria:

• Capacitance Value: Must be 180 pF
• Voltage Rating: Must be 100V or higher
• Temperature Coefficient: Must be C0G or NP0
• Mounting Type: Must be Through Hole
• Package Configuration: Must be Radial with 0.100" (2.54mm) lead spacing
• Compliance: Must maintain ROHS3 compliance

The SR151A181JAR qualifies as a direct substitute based on these parameters. While tolerance differs (±5% versus ±10%), all critical electrical and mechanical specifications align, permitting functional interchangeability in applications where the tighter tolerance is acceptable or beneficial.

Parameter Comparison

Engineering Selection Recommendations

The SR151A181JAR is a qualified substitute for the SR151A181KAT. Both components are manufactured by KYOCERA AVX, maintain identical electrical ratings, physical dimensions, and lead configurations. Both parts are ROHS3 compliant and actively produced.

The primary distinction is capacitance tolerance: SR151A181JAR provides ±5% tolerance compared to the ±10% tolerance of SR151A181KAT. This tighter tolerance in the substitute part does not introduce incompatibility; it represents an equivalent or improved specification for applications requiring stable capacitance values.

Selection between these parts should be based on tolerance requirements and availability. Both are suitable for general-purpose applications within the specified operating temperature range of -55°C to 125°C.

Frequently Asked Questions (FAQ)

Q: Can SR151A181JAR replace SR151A181KAT in existing designs?

A: Yes. The SR151A181JAR is mechanically and electrically compatible. Both parts share identical capacitance values, voltage ratings, temperature coefficients, physical dimensions, and lead spacing. The substitute part's tighter tolerance (±5%) does not create incompatibility.

Q: What is the difference between ±10% and ±5% tolerance?

A: Tolerance defines the acceptable deviation from the nominal 180 pF capacitance value. SR151A181KAT allows deviation between 162 pF and 198 pF. SR151A181JAR allows deviation between 171 pF and 189 pF. The ±5% tolerance provides a narrower operating window, which may be beneficial in precision circuits but is not required for general-purpose applications.

Q: Are both parts through-hole radial components?

A: Yes. Both SR151A181KAT and SR151A181JAR are through-hole radial ceramic capacitors with 0.100" (2.54mm) lead spacing, suitable for PCB mounting in identical footprints.

Q: Do both parts meet RoHS compliance?

A: Yes. Both SR151A181KAT and SR151A181JAR are ROHS3 compliant and REACH unaffected.

Q: What is the operating temperature range for these parts?

A: Both parts operate across -55°C to 125°C, with C0G/NP0 temperature coefficient ensuring stable capacitance across this range.