08052C681KAJ2A Ceramic Capacitor 680pF 200V X7R 0805 Equivalent & Substitute Parts

Part Overview

The 08052C681KAJ2A is a 680 pF ceramic capacitor rated at 200V with X7R temperature coefficient in 0805 (2012 Metric) surface mount package manufactured by KYOCERA AVX. This component is classified as Active product status and is suitable for general purpose applications including bypass and decoupling circuits. The part is RoHS non-compliant and REACH affected, making substitute identification necessary for applications requiring RoHS3 compliance or REACH unaffected status.

Key Parameters

Parameter	Value
Capacitance	680 pF
Tolerance	±10%
Voltage Rating	200V
Temperature Coefficient	X7R
Operating Temperature Range	-55°C to 125°C
Package / Case	0805 (2012 Metric)
Mounting Type	Surface Mount, MLCC
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the 08052C681KAJ2A is determined by the following criteria:

Direct Electrical Equivalents maintain identical capacitance (680 pF), tolerance (±10%), voltage rating (200V), temperature coefficient (X7R), and operating temperature range (-55°C to 125°C). These parts are mechanically and electrically interchangeable in the 0805 package.

Upgraded Tolerance Variants reduce tolerance from ±10% to ±5% while maintaining all other electrical parameters. These provide improved precision for applications requiring tighter capacitance control.

Upgraded Voltage Rating Variants increase the voltage rating above 200V (250V, 450V, or 630V) while maintaining 680 pF capacitance and ±10% tolerance. These are suitable for circuits operating at higher voltages and provide additional safety margin.

Temperature Coefficient Variants substitute X7R with C0G/NP0 coefficient, offering superior temperature stability and lower capacitance drift across the operating range.

Compliance Upgrades transition from RoHS non-compliant to RoHS3 compliant and from REACH affected to REACH unaffected status.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage	Temp Coeff	Package	RoHS Status	REACH Status	Product Status
08052C681KAJ2A	KYOCERA AVX	680 pF	±10%	200V	X7R	0805	Non-compliant	Affected	Active
KGM21NR72D681JT	KYOCERA AVX	680 pF	±5%	200V	X7R	0805	ROHS3 Compliant	Unaffected	Active
KGM21NR72D681KT	KYOCERA AVX	680 pF	±10%	200V	X7R	0805	ROHS3 Compliant	Unaffected	Active
C0805C681K2RAC7800	KEMET	680 pF	±10%	200V	X7R	0805	ROHS3 Compliant	Unaffected	Active
CC0805KRX7RABB681	YAGEO	680 pF	±10%	200V	X7R	0805	ROHS3 Compliant	Unaffected	Active
C0805C681KARAC7800	KEMET	680 pF	±10%	250V	X7R	0805	ROHS3 Compliant	Unaffected	Active
C0805C681KBRAC7800	KEMET	680 pF	±10%	630V	X7R	0805	ROHS3 Compliant	Unaffected	Active
CC0805KRX7RYBB681	YAGEO	680 pF	±10%	250V	X7R	0805	ROHS3 Compliant	Unaffected	Active
C2012C0G2W681J060AA	TDK Corporation	680 pF	±5%	450V	C0G/NP0	0805	ROHS3 Compliant	Unaffected	Active
C2012C0G2W681K060AA	TDK Corporation	680 pF	±10%	450V	C0G/NP0	0805	ROHS3 Compliant	Unaffected	Not For New Designs
C2012NP02W681J060AA	TDK Corporation	680 pF	±5%	450V	C0G/NP0	0805	ROHS3 Compliant	Unaffected	Active

Engineering Selection Recommendations

For Direct Replacement with Compliance Upgrade: Select KGM21NR72D681KT (KYOCERA AVX), C0805C681K2RAC7800 (KEMET), or CC0805KRX7RABB681 (YAGEO). These parts maintain identical electrical specifications while providing RoHS3 compliance and REACH unaffected status. KGM21NR72D681KT offers the highest inventory availability at 13,320 pieces.

For Improved Tolerance: KGM21NR72D681JT provides ±5% tolerance with RoHS3 compliance and REACH unaffected status, suitable for applications requiring tighter capacitance control within the 200V rating.

For Higher Voltage Applications: C0805C681KARAC7800 (250V), CC0805KRX7RYBB681 (250V), or C0805C681KBRAC7800 (630V) are suitable when circuit voltage requirements exceed 200V. All maintain 680 pF capacitance and provide RoHS3 compliance.

For Superior Temperature Stability: C2012C0G2W681J060AA or C2012NP02W681J060AA (TDK Corporation) offer C0G/NP0 temperature coefficient with 450V rating and ±5% tolerance. These are recommended for applications requiring minimal capacitance drift across temperature extremes. C2012NP02W681J060AA extends operating temperature to 150°C.

Avoid for New Designs: C2012C0G2W681K060AA carries "Not For New Designs" status and should not be selected for new circuit implementations.

Frequently Asked Questions (FAQ)

Q: Can KGM21NR72D681KT directly replace 08052C681KAJ2A? A: Yes. Both parts share identical capacitance (680 pF), tolerance (±10%), voltage rating (200V), temperature coefficient (X7R), and 0805 package. KGM21NR72D681KT provides RoHS3 compliance and REACH unaffected status as additional benefits.

Q: What is the difference between X7R and C0G/NP0 temperature coefficients? A: X7R exhibits ±15% capacitance change across -55°C to 125°C operating range. C0G/NP0 provides superior stability with minimal capacitance drift across temperature. C0G/NP0 variants are recommended for precision timing circuits and temperature-sensitive applications.

Q: Are higher voltage rated parts (250V, 450V, 630V) suitable for 200V circuits? A: Yes. Higher voltage rated capacitors are electrically compatible with lower voltage circuits. The 200V circuit will operate within the voltage rating of these parts. Higher voltage ratings provide additional safety margin and derating capability.

Q: What is the significance of RoHS3 compliance? A: RoHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting use of lead, cadmium, mercury, and other hazardous materials. This is mandatory for many applications, particularly in consumer electronics and EU markets.

Q: Does REACH unaffected status affect electrical performance? A: No. REACH unaffected status indicates the part does not contain substances of very high concern (SVHC) listed under REACH regulations. This is a regulatory compliance indicator, not an electrical performance parameter.

Q: Can I use KGM21NR72D681JT (±5% tolerance) instead of the ±10% original? A: Yes. The ±5% tolerance variant is a direct upgrade providing tighter capacitance control. It is electrically compatible and suitable for applications where improved precision is beneficial or required.

Q: What is the inventory status for these substitute parts? A: KGM21NR72D681KT has the highest availability at 13,320 pieces. CC0805KRX7RABB681 (YAGEO) offers 25,400 pieces. Other variants maintain adequate stock levels ranging from 1,548 to 14,010 pieces.

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