Equivalent & Substitute Parts for ECJ-2FC2D680J

Part Overview

The Panasonic ECJ-2FC2D680J is a 68 pF ±5% 200V ceramic capacitor with C0G/NP0 temperature coefficient in 0805 (2012 Metric) surface mount package. This part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The part is suitable for general-purpose applications requiring stable capacitance across the -55°C to 125°C operating temperature range with unlimited moisture sensitivity level (MSL 1).

Key Parameters

Parameter	Value
Capacitance	68 pF
Tolerance	±5%
Voltage Rating	200V
Temperature Coefficient	C0G, NP0
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 ECJ-2FC2D680J is determined by strict equivalence across the following parameters: capacitance value (68 pF), tolerance (±5%), voltage rating (200V), temperature coefficient (C0G/NP0), package type (0805), and operating temperature range (-55°C to 125°C). All direct substitutes maintain identical electrical specifications and physical dimensions, ensuring pin-for-pin compatibility and functional interchangeability in circuit applications.

Direct substitutes are classified as active products from manufacturers including Knowles Syfer, KEMET, YAGEO, and KYOCERA AVX. These parts meet the same RoHS3 compliance and REACH requirements, with MSL 1 rating matching the original part.

Upgrade substitutes offer enhanced specifications (higher voltage ratings or tighter tolerance) while maintaining the same capacitance, package, and temperature coefficient. These parts are suitable for applications requiring additional design margin or improved performance characteristics.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temperature Coefficient	Package	Thickness (Max)	Product Status	RoHS Status
ECJ-2FC2D680J	Panasonic Electronic Components	68 pF	±5%	200V	C0G, NP0	0805 (2012 Metric)	0.055" (1.40mm)	Obsolete	Not specified
0805J2000680JCT	Knowles Syfer	68 pF	±5%	200V	C0G, NP0 (1B)	0805 (2012 Metric)	0.051" (1.30mm)	Active	ROHS3 Compliant
0805J2000680JQT	Knowles Syfer	68 pF	±5%	200V	C0G, NP0	0805 (2012 Metric)	0.051" (1.30mm)	Active	ROHS3 Compliant
C0805C680J2GAC7800	KEMET	68 pF	±5%	200V	C0G, NP0	0805 (2012 Metric)	0.035" (0.88mm)	Active	ROHS3 Compliant
CC0805JRNPOABN680	YAGEO	68 pF	±5%	200V	C0G, NP0	0805 (2012 Metric)	0.028" (0.70mm)	Active	ROHS3 Compliant
KGM21BCG2D680JM	KYOCERA AVX	68 pF	±5%	200V	C0G, NP0	0805 (2012 Metric)	0.037" (0.94mm)	Active	ROHS3 Compliant
KGM21BCG2D680JT	KYOCERA AVX	68 pF	±5%	200V	C0G, NP0	0805 (2012 Metric)	0.037" (0.94mm)	Active	ROHS3 Compliant
0805D680J251KHT	Knowles Novacap	68 pF	±5%	250V	C0G, NP0	0805 (2012 Metric)	0.054" (1.37mm)	Active	ROHS3 Compliant
0805D680J501KHT	Knowles Novacap	68 pF	±5%	500V	C0G, NP0	0805 (2012 Metric)	0.054" (1.37mm)	Active	ROHS3 Compliant
0805J2000680FCT	Knowles Syfer	68 pF	±1%	200V	C0G, NP0 (1B)	0805 (2012 Metric)	0.051" (1.30mm)	Active	ROHS3 Compliant
0805J2000680FQT	Knowles Syfer	68 pF	±1%	200V	C0G, NP0	0805 (2012 Metric)	0.051" (1.30mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct substitutes (0805J2000680JCT, 0805J2000680JQT, C0805C680J2GAC7800, CC0805JRNPOABN680, KGM21BCG2D680JM, KGM21BCG2D680JT) are functionally equivalent to the ECJ-2FC2D680J and are recommended for direct replacement. All direct substitutes are active products with ROHS3 compliance and REACH unaffected status, ensuring regulatory compliance and supply chain continuity.

Upgrade substitutes with tighter tolerance (0805J2000680FCT, 0805J2000680FQT at ±1%) are suitable for applications requiring improved capacitance stability. Upgrade substitutes with higher voltage ratings (0805D680J251KHT at 250V, 0805D680J501KHT at 500V) provide additional design margin for circuits operating near the original 200V specification. These upgrades maintain the same 68 pF capacitance and C0G/NP0 temperature coefficient while offering enhanced performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a higher voltage rating than the original ECJ-2FC2D680J?

A: Yes. The 0805D680J251KHT (250V) and 0805D680J501KHT (500V) are functionally compatible. Higher voltage ratings provide additional design margin and do not affect circuit operation when the original 200V specification is adequate. Physical dimensions remain within 0805 package constraints.

Q: What is the difference between direct substitutes from different manufacturers?

A: All direct substitutes maintain identical electrical specifications (68 pF, ±5%, 200V, C0G/NP0). Differences exist in physical thickness and internal construction. KEMET C0805C680J2GAC7800 offers the lowest profile (0.035" max thickness), while YAGEO CC0805JRNPOABN680 provides the thinnest option (0.028" max thickness). Selection depends on available PCB space and assembly constraints.

Q: Are the ±1% tolerance upgrades compatible with circuits designed for ±5% tolerance?

A: Yes. Parts with ±1% tolerance (0805J2000680FCT, 0805J2000680FQT) are compatible with designs specified for ±5% tolerance. The tighter tolerance provides improved capacitance accuracy and stability, benefiting circuits sensitive to capacitance variation.

Q: Do all substitute parts meet the same compliance requirements as the original?

A: All active direct and upgrade substitutes are ROHS3 compliant with MSL 1 rating. The original ECJ-2FC2D680J compliance status is not specified. Knowles Novacap upgrade parts (0805D680J251KHT, 0805D680J501KHT) are REACH affected, while all other substitutes are REACH unaffected.

Q: Can I mix substitute parts from different manufacturers in the same production run?

A: Yes. All direct substitutes are electrically and mechanically equivalent. Manufacturing consistency may vary slightly between suppliers, but all parts meet the specified 68 pF ±5% 200V C0G/NP0 0805 requirements. Verify packaging format (tape & reel vs. bulk) matches your assembly process requirements.

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