Equivalent & Substitute Parts for 08051C271KAT2A

Part Overview

The 08051C271KAT2A is a 270 pF ±10% 100V ceramic capacitor with X7R temperature coefficient in 0805 (2012 Metric) surface mount package manufactured by KYOCERA AVX. This part is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for production and repair applications. Substitute parts maintain the same capacitance value and package footprint while offering improvements in tolerance, voltage rating, temperature coefficient stability, or product status.

Key Parameters

Parameter	Value
Capacitance	270 pF
Tolerance	±10%
Voltage Rating	100V
Temperature Coefficient	X7R
Package / Case	0805 (2012 Metric)
Mounting Type	Surface Mount, MLCC
Operating Temperature Range	-55°C ~ 125°C
Moisture Sensitivity Level	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the 08051C271KAT2A is determined by the following criteria:

Primary Substitution Parameters:

Capacitance value: 270 pF (exact match required)
Package / Case: 0805 (2012 Metric) (exact match required)
Mounting Type: Surface Mount, MLCC (exact match required)
Operating Temperature Range: -55°C ~ 125°C (exact match required)
Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Secondary Substitution Parameters (allowable variations):

Tolerance: ±10%, ±5%, ±2%, ±1% (tighter tolerances are acceptable upgrades)
Voltage Rating: 100V or higher (higher ratings provide design margin)
Temperature Coefficient: X7R or C0G/NP0 (C0G/NP0 provides superior stability)
Product Status: Active preferred over Obsolete

Substitute parts are grouped into two categories: X7R temperature coefficient variants and C0G/NP0 temperature coefficient variants. Within each category, parts are further differentiated by tolerance and voltage rating.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage	Temp Coeff	Package	Product Status	RoHS Status
08051C271KAT2A	KYOCERA AVX	270 pF	±10%	100V	X7R	0805	Obsolete	Not specified
08051C271JAT2A	KYOCERA AVX	270 pF	±5%	100V	X7R	0805	Active	ROHS3 Compliant
08052C271JAT2A	KYOCERA AVX	270 pF	±5%	200V	X7R	0805	Active	ROHS3 Compliant
08052C271KAT2A	KYOCERA AVX	270 pF	±10%	200V	X7R	0805	Active	ROHS3 Compliant
KGM21BCG2A271FT	KYOCERA AVX	270 pF	±1%	100V	C0G/NP0	0805	Active	ROHS3 Compliant
KGM21BCG2A271GT	KYOCERA AVX	270 pF	±2%	100V	C0G/NP0	0805	Active	ROHS3 Compliant
KGM21BCG2A271JT	KYOCERA AVX	270 pF	±5%	100V	C0G/NP0	0805	Active	ROHS3 Compliant
KGM21BCG2A271KT	KYOCERA AVX	270 pF	±10%	100V	C0G/NP0	0805	Active	ROHS3 Compliant
KGM21ECG2D271FU	KYOCERA AVX	270 pF	±1%	200V	C0G/NP0	0805	Active	ROHS3 Compliant
KGM21ECG2D271GU	KYOCERA AVX	270 pF	±2%	200V	C0G/NP0	0805	Active	ROHS3 Compliant
KGM21ECG2D271JU	KYOCERA AVX	270 pF	±5%	200V	C0G/NP0	0805	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Replacement (Same Specifications): 08052C271KAT2A is the direct equivalent with identical electrical specifications (270 pF ±10% 100V X7R) but with 200V voltage rating and active product status. This part provides improved design margin and ensures long-term availability.

Tolerance Upgrade (X7R Series): 08051C271JAT2A offers tighter tolerance (±5%) at the same voltage rating (100V) with active product status and ROHS3 compliance. This substitution is suitable for applications requiring improved capacitance accuracy.

Voltage Upgrade (X7R Series): 08052C271JAT2A provides both tolerance upgrade (±5%) and voltage upgrade (200V) while maintaining X7R temperature coefficient and active product status.

Temperature Coefficient Upgrade (C0G/NP0 Series): KGM21BCG2A271KT matches the original tolerance (±10%) and voltage (100V) but offers superior temperature stability through C0G/NP0 temperature coefficient. This substitution is recommended for precision applications requiring minimal capacitance drift across temperature extremes.

Combined Upgrades (C0G/NP0 with Higher Voltage): KGM21ECG2D271JU provides C0G/NP0 temperature coefficient with 200V rating and ±5% tolerance, offering maximum design margin and stability for demanding applications.

All substitute parts maintain identical package footprint (0805), mounting type (Surface Mount, MLCC), operating temperature range (-55°C ~ 125°C), and moisture sensitivity level (MSL 1). All active substitutes are ROHS3 compliant.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with higher voltage rating than the original? A: Yes. A higher voltage rating provides additional design margin and does not compromise circuit function. The 08052C271KAT2A (200V) is a direct substitute for the 08051C271KAT2A (100V) with identical capacitance and tolerance.

Q: What is the difference between X7R and C0G/NP0 temperature coefficients? A: X7R temperature coefficient exhibits ±15% capacitance change across the operating temperature range. C0G/NP0 exhibits 0 ppm/°C nominal drift, providing superior stability. C0G/NP0 parts are suitable for precision applications where temperature-induced capacitance variation must be minimized.

Q: Can I substitute a tighter tolerance part for the original ±10% part? A: Yes. Tighter tolerance parts (±5%, ±2%, ±1%) are direct substitutes and provide improved capacitance accuracy. No circuit redesign is required.

Q: Are all substitute parts ROHS3 compliant? A: All active substitute parts listed are ROHS3 compliant. The original 08051C271KAT2A (obsolete) does not specify RoHS status.

Q: Does package footprint differ between substitute parts? A: No. All substitute parts use the 0805 (2012 Metric) package with identical footprint dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm). Physical board layout compatibility is maintained across all substitutions.

Q: Which substitute should I select for new designs? A: For new designs, select from active product status parts. KGM21BCG2A271KT (C0G/NP0, ±10%, 100V) or KGM21ECG2D271JU (C0G/NP0, ±5%, 200V) are recommended for superior temperature stability. If X7R temperature coefficient is required, 08052C271KAT2A (±10%, 200V) is the preferred active equivalent.

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