Equivalent & Substitute Parts for 08055C103MAT4T

Part Overview

The 08055C103MAT4T is a 10000 pF ceramic capacitor manufactured by KYOCERA AVX, rated for 50V with X7R temperature coefficient in 0805 (2012 Metric) surface mount package. This part is Active status and ROHS3 compliant. Substitute parts are identified when equivalent electrical performance can be maintained within the same package footprint while meeting or exceeding voltage and tolerance specifications.

Key Parameters

Parameter	Value
Manufacturer Part Number	08055C103MAT4T
Manufacturer	KYOCERA AVX
Capacitance	10000 pF
Voltage - Rated	50V
Tolerance	±20%
Temperature Coefficient	X7R
Operating Temperature	-55°C ~ 125°C
Package / Case	0805 (2012 Metric)
Mounting Type	Surface Mount, MLCC
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Mandatory Matching Parameters:

Capacitance: 10000 pF (exact match required)
Package / Case: 0805 (2012 Metric) (exact match required)
Temperature Coefficient: X7R (exact match required)
Mounting Type: Surface Mount, MLCC (exact match required)
Operating Temperature Range: -55°C ~ 125°C (exact match required)

Allowable Variation Parameters:

Voltage - Rated: Equal to or greater than 50V
Tolerance: Equal to or tighter than ±20%
RoHS Status: ROHS3 Compliant (maintained)
Moisture Sensitivity Level: 1 (Unlimited) (maintained)
Product Status: Active (maintained)

Substitute parts are grouped by voltage rating. Parts with higher voltage ratings provide enhanced design margin. Parts with tighter tolerance specifications provide improved precision.

Parameter Comparison

Manufacturer Part Number	Capacitance	Voltage	Tolerance	Package	Thickness (Max)	Inventory
08055C103MAT4T	10000 pF	50V	±20%	0805	0.037" (0.94mm)	924 Pcs
KGM21NR71H103KM	10000 pF	50V	±10%	0805	0.039" (1.00mm)	547048 Pcs
KGM21NR71H103KT	10000 pF	50V	±10%	0805	0.039" (1.00mm)	437140 Pcs
KGM21NR71H103MM	10000 pF	50V	±20%	0805	0.039" (1.00mm)	10705 Pcs
KGM21NR71H103MT	10000 pF	50V	±20%	0805	0.039" (1.00mm)	59661 Pcs
KGM21NR72A103JT	10000 pF	100V	±5%	0805	0.039" (1.00mm)	31895 Pcs
KGM21AR72D103JU	10000 pF	200V	±5%	0805	0.057" (1.45mm)	7021 Pcs
KGM21AR72D103KL	10000 pF	200V	±10%	0805	0.057" (1.45mm)	29756 Pcs
KGM21AR72D103KU	10000 pF	200V	±10%	0805	0.057" (1.45mm)	81137 Pcs
KGM21AR72D103MU	10000 pF	200V	±20%	0805	0.057" (1.45mm)	7440 Pcs
0805PC103KAT2A	10000 pF	250V	±10%	0805	0.051" (1.30mm)	8603 Pcs

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and ROHS3 compliance. Selection between equivalent parts should be based on:

Voltage Rating Alignment: Parts rated at 50V (KGM21NR71H103KM, KGM21NR71H103KT, KGM21NR71H103MM, KGM21NR71H103MT) provide direct electrical equivalence with identical voltage margin. Parts rated at 100V, 200V, or 250V provide increased design margin for applications requiring higher voltage headroom.

Tolerance Specification: The original part specifies ±20% tolerance. Substitute parts with ±10% or ±5% tolerance offer improved precision for applications requiring tighter capacitance control. Parts with ±20% tolerance (KGM21NR71H103MM, KGM21NR71H103MT, KGM21AR72D103MU) maintain identical tolerance specification.

Physical Dimensions: Thickness varies across the substitute list. Parts rated at 50V and 100V have maximum thickness of 0.039" (1.00mm). Parts rated at 200V have maximum thickness of 0.057" (1.45mm). The 250V part has maximum thickness of 0.051" (1.30mm). PCB layout constraints may limit selection to thinner options.

Inventory Availability: High-volume availability exists for KGM21NR71H103KM (547048 Pcs), KGM21NR71H103KT (437140 Pcs), and KGM21AR72D103KU (81137 Pcs).

Frequently Asked Questions (FAQ)

Q: Can I use a higher voltage rated capacitor as a substitute? A: Yes. A capacitor rated at 100V, 200V, or 250V can replace a 50V rated part in the same circuit. Higher voltage rating provides additional design margin and does not degrade performance in lower voltage applications.

Q: What is the difference between ±20%, ±10%, and ±5% tolerance? A: Tolerance specifies the allowable deviation from the nominal capacitance value. ±20% allows ±2000 pF deviation from 10000 pF (range: 8000-12000 pF). ±10% allows ±1000 pF deviation (range: 9000-11000 pF). ±5% allows ±500 pF deviation (range: 9500-10500 pF). Tighter tolerance is beneficial for precision filtering and timing applications.

Q: Will the thickness difference affect my PCB design? A: Thickness variation ranges from 0.037" to 0.057" maximum. If your PCB layout has height constraints, verify that the selected substitute part thickness is compatible with your design specifications and assembly process.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited), matching the original part specifications.

Q: What does X7R temperature coefficient mean? A: X7R indicates the capacitance change over temperature follows a specific curve, with maximum capacitance change of ±15% across the -55°C to 125°C operating range. All listed parts maintain X7R specification.

Q: Can I interchange KGM21NR71H103KM, KGM21NR71H103KT, KGM21NR71H103MM, and KGM21NR71H103MT? A: Yes. These four parts are electrically equivalent at 50V rating with X7R temperature coefficient in 0805 package. Differences are tolerance (±10% vs ±20%) and packaging reel configuration. Selection depends on tolerance requirement and inventory availability.

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