Equivalent & Substitute Parts for 08051C122MAT2A

Part Overview

The 08051C122MAT2A is a 1200 pF ceramic capacitor manufactured by KYOCERA AVX, rated at 100V with X7R temperature coefficient in 0805 (2012 Metric) surface mount package. This part is currently active and available in stock. Substitute parts are identified based on matching capacitance, package, and operating temperature range while allowing variations in voltage rating, tolerance, and temperature coefficient that maintain functional compatibility within the specified electrical parameters.

Key Parameters

Parameter	Value
Capacitance	1200 pF
Tolerance	±20%
Voltage Rating	100V
Temperature Coefficient	X7R
Operating Temperature Range	-55°C to 125°C
Package / Case	0805 (2012 Metric)
Mounting Type	Surface Mount, MLCC
Physical Dimensions	0.079" L × 0.049" W (2.00mm × 1.25mm)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Primary Matching Parameters (Required):

Capacitance: 1200 pF (exact match)
Package: 0805 (2012 Metric) (exact match)
Operating Temperature Range: -55°C to 125°C (exact match)
Mounting Type: Surface Mount, MLCC (exact match)

Allowable Variations:

Voltage Rating: Equal to or greater than 100V
Tolerance: Equal to or tighter than ±20%
Temperature Coefficient: X7R or C0G/NP0 (both acceptable for general purpose applications)
Manufacturer: Different manufacturers permitted if all primary parameters match

All substitute parts listed meet these criteria and are suitable for direct replacement in applications designed for the 08051C122MAT2A.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temperature Coefficient	Package	Product Status	Inventory
08051C122MAT2A	KYOCERA AVX	1200 pF	±20%	100V	X7R	0805	Active	1113 Pcs
08051C122KAT2A	KYOCERA AVX	1200 pF	±10%	100V	X7R	0805	Active	10639 Pcs
C0805C122J1GAC7800	KEMET	1200 pF	±5%	100V	C0G, NP0	0805	Active	3200 Pcs
C0805C122JAGAC7800	KEMET	1200 pF	±5%	250V	C0G, NP0	0805	Active	10391 Pcs
C0805C122K1RAC7800	KEMET	1200 pF	±10%	100V	X7R	0805	Active	5031 Pcs
C0805C122K2RAC7800	KEMET	1200 pF	±10%	200V	X7R	0805	Active	4079 Pcs
CC0805KRX7R0BB122	YAGEO	1200 pF	±10%	100V	X7R	0805	Active	8911 Pcs
C2012C0G2A122J060AA	TDK Corporation	1200 pF	±5%	100V	C0G, NP0	0805	Active	16925 Pcs
C2012C0G2E122J085AA	TDK Corporation	1200 pF	±5%	250V	C0G, NP0	0805	Active	5511 Pcs
C2012C0G2E122K085AA	TDK Corporation	1200 pF	±10%	250V	C0G, NP0	0805	Not For New Designs	9266 Pcs
C2012C0G2W122J060AA	TDK Corporation	1200 pF	±5%	450V	C0G, NP0	0805	Active	4715 Pcs

Engineering Selection Recommendations

For Direct Replacement (Same Electrical Characteristics): Select 08051C122KAT2A (KYOCERA AVX) or CC0805KRX7R0BB122 (YAGEO) when maintaining identical X7R temperature coefficient and 100V rating is required. Both parts are Active status with improved tolerance (±10%) compared to the original ±20%.

For Improved Tolerance Requirements: C0805C122K1RAC7800 (KEMET) provides ±10% tolerance with X7R coefficient at 100V. C2012C0G2A122J060AA (TDK Corporation) offers ±5% tolerance with C0G/NP0 coefficient at 100V, suitable for applications requiring tighter capacitance stability.

For Higher Voltage Margin: C0805C122JAGAC7800 (KEMET) and C2012C0G2E122J085AA (TDK Corporation) both provide 250V rating with ±5% tolerance and C0G/NP0 coefficient. C2012C0G2W122J060AA (TDK Corporation) extends to 450V for applications requiring maximum voltage headroom.

Parts to Avoid for New Designs: C2012C0G2E122K085AA (TDK Corporation) carries "Not For New Designs" status and should not be selected for new applications despite adequate electrical specifications.

Compliance Verification: All recommended substitute parts maintain ROHS3 compliance, Moisture Sensitivity Level 1, and REACH Unaffected status consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can I substitute a C0G/NP0 temperature coefficient part for the X7R original? A: Yes. Both C0G/NP0 and X7R are acceptable for general purpose applications. C0G/NP0 provides superior temperature stability and lower distortion, making it suitable for precision circuits. X7R offers higher capacitance density. Selection depends on application requirements.

Q: What is the impact of tolerance differences (±20%, ±10%, ±5%)? A: Tighter tolerance ensures capacitance remains closer to the nominal 1200 pF value across temperature and voltage variations. ±5% parts are suitable for precision filtering and timing circuits. ±10% and ±20% parts are acceptable for general bypass and decoupling applications where exact capacitance is less critical.

Q: Can I use a higher voltage rated part as a substitute? A: Yes. A part rated at 250V or 450V can replace a 100V part in the same circuit. Higher voltage ratings provide additional safety margin and typically result in lower ESR and improved reliability. Physical dimensions and thickness may vary slightly; verify PCB layout compatibility.

Q: Are all substitute parts pin-compatible? A: Yes. All listed parts use identical 0805 (2012 Metric) surface mount package with the same footprint and pin spacing. No PCB layout modifications are required.

Q: Why are some parts listed as "Not For New Designs"? A: Parts marked "Not For New Designs" are in mature or declining production phases. While electrically functional and available in inventory, they should not be selected for new product development. Use Active status parts for new designs to ensure long-term supply availability.

Q: What is Moisture Sensitivity Level (MSL) 1? A: MSL 1 indicates unlimited shelf life without moisture baking requirements. The part can be stored and handled under standard conditions without special moisture control, simplifying logistics and manufacturing processes.

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