ECJ-2VB2A331K Equivalent & Substitute Parts

Part Overview

The ECJ-2VB2A331K is a 330 pF ±10% 100V ceramic capacitor with X7R temperature coefficient in 0805 (2012 Metric) surface mount package manufactured by Panasonic Electronic Components. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The X7R dielectric provides stable capacitance across the operating temperature range of -55°C to 125°C, suitable for general-purpose bypass and decoupling applications in electronic circuits.

Key Parameters

Parameter	Value
Capacitance	330 pF
Tolerance	±10%
Voltage Rating	100V
Temperature Coefficient	X7R
Operating Temperature Range	-55°C to 125°C
Package / Case	0805 (2012 Metric)
Mounting Type	Surface Mount, MLCC
Size / Dimension	0.079" L x 0.049" W (2.00mm x 1.25mm)
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the ECJ-2VB2A331K are grouped based on strict electrical and mechanical compatibility criteria. All direct substitutes maintain the following parameters:

Capacitance: 330 pF
Tolerance: ±10%
Voltage Rating: 100V
Temperature Coefficient: X7R
Package: 0805 (2012 Metric)
Operating Temperature: -55°C to 125°C
Mounting Type: Surface Mount, MLCC
MSL: 1 (Unlimited)

Parts with different temperature coefficients (C0G/NP0) or voltage ratings (200V, 500V) are classified as upgrades rather than direct substitutes, as they represent enhanced specifications beyond the original part requirements.

Parameter Comparison

Manufacturer	Part Number	Capacitance	Tolerance	Voltage	Temp Coeff	Package	Product Status	RoHS Status	Thickness (Max)
Panasonic	ECJ-2VB2A331K	330 pF	±10%	100V	X7R	0805	Obsolete	Not specified	0.037" (0.95mm)
KYOCERA AVX	08051C331KAJ2A	330 pF	±10%	100V	X7R	0805	Active	RoHS non-compliant	0.037" (0.94mm)
KEMET	C0805C331K1RAC7800	330 pF	±10%	100V	X7R	0805	Active	ROHS3 Compliant	0.035" (0.88mm)
YAGEO	CC0805KRX7R0BB331	330 pF	±10%	100V	X7R	0805	Active	ROHS3 Compliant	0.028" (0.70mm)
KYOCERA AVX	KGM21NR72A331KT	330 pF	±10%	100V	X7R	0805	Active	ROHS3 Compliant	0.039" (1.00mm)
Vishay Vitramon	VJ0805Y331KXBCW1BC	330 pF	±10%	100V	X7R	0805	Active	ROHS3 Compliant	0.035" (0.90mm)
Vishay Vitramon	VJ0805Y331KXBPW1BC	330 pF	±10%	100V	X7R	0805	Active	ROHS3 Compliant	0.035" (0.90mm)

Engineering Selection Recommendations

For direct replacement of the obsolete ECJ-2VB2A331K, select from active-status parts with matching electrical specifications. KEMET C0805C331K1RAC7800, YAGEO CC0805KRX7R0BB331, KYOCERA AVX KGM21NR72A331KT, and Vishay Vitramon VJ0805Y331KXBCW1BC are all active products with ROHS3 compliance, ensuring long-term availability and regulatory compliance for new designs.

The KYOCERA AVX 08051C331KAJ2A remains functionally equivalent but carries RoHS non-compliant status, limiting its use in applications requiring environmental compliance certification.

For applications requiring enhanced specifications, upgrade options include:

Murata GRM2165C2A331JA01D: C0G/NP0 temperature coefficient with ±5% tolerance for improved stability
KYOCERA AVX KGM21NR72D331KT: 200V rated variant for higher voltage margin applications
Knowles Novacap 0805N331K501NT: 500V rated C0G/NP0 variant for demanding high-voltage circuits

Frequently Asked Questions (FAQ)

Q: Can I use a C0G/NP0 temperature coefficient part as a direct substitute for the X7R ECJ-2VB2A331K?

A: C0G/NP0 parts such as Murata GRM2165C2A331JA01D and Knowles Novacap 0805D331J101KHT are not direct substitutes. While they maintain the same capacitance, tolerance, voltage, and package, the different temperature coefficient affects capacitance stability across temperature ranges. Use C0G/NP0 variants only when improved temperature stability is required by circuit design specifications.

Q: What is the difference between the KYOCERA AVX KGM21NR72A331KT (100V) and KGM21NR72D331KT (200V)?

A: Both parts share identical capacitance, tolerance, temperature coefficient, and package specifications. The KGM21NR72D331KT provides a higher voltage rating of 200V, offering greater safety margin in circuits where voltage stress may approach 100V. Select the 200V variant only if circuit design requires the additional voltage headroom.

Q: Are all substitute parts available in the same packaging format?

A: All direct substitutes are available in 0805 (2012 Metric) surface mount package with identical footprint dimensions of 0.079" L x 0.049" W (2.00mm x 1.25mm). Thickness varies slightly between manufacturers (0.028" to 0.039"), which is within standard PCB assembly tolerances and does not affect board-level compatibility.

Q: Which substitute part has the best RoHS compliance status?

A: KEMET C0805C331K1RAC7800, YAGEO CC0805KRX7R0BB331, KYOCERA AVX KGM21NR72A331KT, and both Vishay Vitramon variants (VJ0805Y331KXBCW1BC and VJ0805Y331KXBPW1BC) all carry ROHS3 Compliant certification. The KYOCERA AVX 08051C331KAJ2A is RoHS non-compliant and should be avoided in applications requiring environmental compliance.

Q: Can I substitute the ECJ-2VB2A331K with a higher voltage-rated part without circuit modification?

A: Yes. Higher voltage-rated parts such as KYOCERA AVX KGM21NR72D331KT (200V) and Knowles Novacap 0805N331K501NT (500V) are electrically compatible and provide additional safety margin. No circuit modification is required. However, verify that the increased thickness does not conflict with PCB assembly constraints.

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