Equivalent & Substitute Parts for 08051C183KAJ2A

Part Overview

The 08051C183KAJ2A is a 0.018 µF ceramic capacitor manufactured by KYOCERA AVX, rated for 100V with X7R temperature coefficient in 0805 (2012 Metric) surface mount package. This component is classified as Active and suitable for general purpose applications. Substitute parts are identified to provide alternatives with equivalent or improved electrical and mechanical characteristics while maintaining compatibility with the original design specifications.

Substiute Parts

08051C183KAJ2A
KYOCERA AVXIn Stock: 84208051C183KAJ2A Datasheet
08051C183KAJ2A
Current Part
KGM21AR72A183JU
KYOCERA AVXIn Stock: 4838KGM21AR72A183JU Datasheet
KGM21AR72A183JU
Upgrade
KGM21AR72A183KU
KYOCERA AVXIn Stock: 28677KGM21AR72A183KU Datasheet
KGM21AR72A183KU
Parametric Equivalent

Key Parameters

Parameter Value
Capacitance 0.018 µF
Tolerance ±10%
Voltage Rating 100V
Temperature Coefficient X7R
Operating Temperature Range -55°C ~ 125°C
Mounting Type Surface Mount, MLCC
Package / Case 0805 (2012 Metric)
Moisture Sensitivity Level 1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 08051C183KAJ2A are grouped based on the following critical parameters that determine functional equivalence:

Electrical Parameters (Must Match):

  • Capacitance: 0.018 µF
  • Voltage Rating: 100V
  • Temperature Coefficient: X7R
  • Operating Temperature Range: -55°C ~ 125°C

Mechanical Parameters (Must Match):

  • Package / Case: 0805 (2012 Metric)
  • Mounting Type: Surface Mount, MLCC
  • Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variations:

  • Tolerance: ±10% or tighter (±5%)
  • Manufacturer: Different manufacturers acceptable
  • Packaging Format: Tape & Reel acceptable as alternative to bulk
  • RoHS / REACH Compliance: Improved compliance acceptable

All identified substitutes maintain identical capacitance, voltage rating, temperature coefficient, and package specifications. Variations in tolerance and compliance status represent improvements or alternative sourcing options.

Parameter Comparison

Parameter 08051C183KAJ2A (Main) KGM21AR72A183JU (Upgrade) KGM21AR72A183KU (Equivalent) C0805C183K1RAC7800 (Direct)
Manufacturer KYOCERA AVX KYOCERA AVX KYOCERA AVX KEMET
Capacitance 0.018 µF 0.018 µF 0.018 µF 0.018 µF
Tolerance ±10% ±5% ±10% ±10%
Voltage Rating 100V 100V 100V 100V
Temperature Coefficient X7R X7R X7R X7R
Operating Temperature -55°C ~ 125°C -55°C ~ 125°C -55°C ~ 125°C -55°C ~ 125°C
Package / Case 0805 (2012 Metric) 0805 (2012 Metric) 0805 (2012 Metric) 0805 (2012 Metric)
Size / Dimension 0.079" L x 0.049" W (2.00mm x 1.25mm) 0.079" L x 0.049" W (2.01mm x 1.25mm) 0.079" L x 0.049" W (2.01mm x 1.25mm) 0.079" L x 0.049" W (2.00mm x 1.25mm)
Thickness (Max) 0.037" (0.94mm) 0.057" (1.45mm) 0.057" (1.45mm) 0.035" (0.88mm)
Mounting Type Surface Mount, MLCC Surface Mount, MLCC Surface Mount, MLCC Surface Mount, MLCC
Moisture Sensitivity Level 1 (Unlimited) 1 (Unlimited) 1 (Unlimited) 1 (Unlimited)
RoHS Status RoHS non-compliant ROHS3 Compliant ROHS3 Compliant ROHS3 Compliant
REACH Status REACH Affected REACH Unaffected REACH Unaffected REACH Unaffected
Product Status Active Active Active Active

Engineering Selection Recommendations

KGM21AR72A183JU (KYOCERA AVX - Upgrade Option): This substitute offers improved tolerance specification (±5% versus ±10%) while maintaining all electrical and mechanical equivalence. RoHS3 compliance and REACH unaffected status provide regulatory advantages. Suitable for applications requiring tighter capacitance tolerance. Packaging in Tape & Reel format supports automated assembly processes.

KGM21AR72A183KU (KYOCERA AVX - Parametric Equivalent): This substitute maintains identical electrical specifications and tolerance to the main part while providing RoHS3 compliance and REACH unaffected status. Highest inventory availability (28,575 pcs) supports supply chain continuity. Tape & Reel packaging accommodates production requirements. Recommended for direct replacement with regulatory compliance upgrade.

C0805C183K1RAC7800 (KEMET - Direct Alternative): This substitute provides cross-manufacturer equivalence with identical electrical specifications and tolerance. RoHS3 compliance and REACH unaffected status meet regulatory requirements. Minimal thickness profile (0.035" / 0.88mm) offers space optimization in constrained PCB layouts. Suitable for applications requiring multi-source component strategy.

Frequently Asked Questions (FAQ)

Q: Can KGM21AR72A183JU replace 08051C183KAJ2A directly? A: Yes. Both components share identical capacitance (0.018 µF), voltage rating (100V), temperature coefficient (X7R), operating temperature range (-55°C ~ 125°C), and 0805 package specification. The substitute features improved tolerance (±5%) and enhanced compliance status.

Q: What is the difference between KGM21AR72A183JU and KGM21AR72A183KU? A: Both are KYOCERA AVX KGM series X7R capacitors with identical electrical specifications. The primary difference is tolerance: KGM21AR72A183JU specifies ±5% tolerance, while KGM21AR72A183KU specifies ±10% tolerance matching the original part. KGM21AR72A183KU offers significantly higher inventory availability.

Q: Is C0805C183K1RAC7800 compatible with the original design? A: Yes. This KEMET component maintains all critical electrical parameters and 0805 package dimensions. It provides cross-manufacturer sourcing flexibility and features a thinner profile (0.035" versus 0.037" maximum thickness), which may benefit space-constrained designs.

Q: What are the compliance differences between the main part and substitutes? A: The original 08051C183KAJ2A is RoHS non-compliant and REACH affected. All three substitutes are RoHS3 compliant and REACH unaffected, providing regulatory advantages for new designs or compliance-driven applications.

Q: Are there thickness considerations when substituting? A: Yes. The original part specifies 0.037" (0.94mm) maximum thickness. KGM21AR72A183JU and KGM21AR72A183KU specify 0.057" (1.45mm), while C0805C183K1RAC7800 specifies 0.035" (0.88mm). Verify PCB clearance and assembly process compatibility for designs with tight vertical constraints.

Q: Can these substitutes be used interchangeably in production? A: All substitutes maintain identical electrical and mechanical specifications within the 0805 package. Tape & Reel packaging format supports automated assembly. Verify solder reflow profiles and placement equipment compatibility for your specific manufacturing process.

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