ECJ-2VC1H390J Equivalent & Substitute Parts

Part Overview

The ECJ-2VC1H390J is a 39 pF ±5% 50V ceramic capacitor with C0G/NP0 temperature coefficient in 0805 (2012 Metric) surface mount package manufactured by Panasonic Electronic Components. This part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Substitute parts must maintain identical electrical specifications and mechanical compatibility to ensure direct replacement without circuit redesign.

Key Parameters

Parameter	Specification
Capacitance	39 pF
Tolerance	±5%
Voltage Rating	50V
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	MSL 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters:

Capacitance value: 39 pF (exact match required)
Tolerance: ±5% (exact match required)
Voltage rating: 50V (exact match required)
Temperature coefficient: C0G/NP0 (exact match required)
Operating temperature range: -55°C to 125°C (exact match required)
Package: 0805 (2012 Metric) (exact match required)
Mounting type: Surface Mount, MLCC (exact match required)
Moisture sensitivity: MSL 1 (exact match required)

All substitute parts listed below meet these criteria. Physical dimensions (length, width, thickness) may vary within manufacturing tolerances and do not affect electrical performance or PCB assembly compatibility.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage	Temp Coeff	Package	Product Status	Thickness (Max)	MSL
ECJ-2VC1H390J	Panasonic Electronic Components	39 pF	±5%	50V	C0G, NP0	0805	Obsolete	0.028" (0.70mm)	MSL 1
08055A390JAQ2A	KYOCERA AVX	39 pF	±5%	50V	C0G, NP0	0805	Active	0.037" (0.94mm)	MSL 1
C0805C390J5GAC7800	KEMET	39 pF	±5%	50V	C0G, NP0	0805	Active	0.035" (0.88mm)	MSL 1
CC0805JRNPO9BN390	YAGEO	39 pF	±5%	50V	C0G, NP0	0805	Active	0.024" (0.60mm)	MSL 1
CL21C390JBANFNC	Samsung Electro-Mechanics	39 pF	±5%	50V	C0G, NP0	0805	Active	0.030" (0.75mm)	MSL 1
CL21C390JBANNNC	Samsung Electro-Mechanics	39 pF	±5%	50V	C0G, NP0	0805	Active	0.030" (0.75mm)	MSL 1
CL21C390JBANNND	Samsung Electro-Mechanics	39 pF	±5%	50V	C0G, NP0	0805	Active	0.030" (0.75mm)	MSL 1
CML0805C0G390JT50V	Stackpole Electronics Inc	39 pF	±5%	50V	C0G, NP0	0805	Active	0.030" (0.75mm)	MSL 1
KGM21BCG1H390JT	KYOCERA AVX	39 pF	±5%	50V	C0G, NP0	0805	Active	0.037" (0.94mm)	MSL 1
VJ0805A390JXACW1BC	Vishay Vitramon	39 pF	±5%	50V	C0G, NP0	0805	Active	0.030" (0.75mm)	MSL 1
AC0805JRNPO9BN390	YAGEO	39 pF	±5%	50V	C0G, NP0	0805	Active	0.028" (0.70mm)	MSL 1

Engineering Selection Recommendations

All listed substitute parts are electrically and mechanically equivalent to the ECJ-2VC1H390J. Selection should be based on the following factors:

Product Status: All substitute parts carry Active product status, ensuring long-term availability and supply chain continuity compared to the obsolete original part.

Compliance & Certifications: All substitute parts are RoHS3 compliant and REACH unaffected, meeting current regulatory requirements. The AC0805JRNPO9BN390 variant includes AEC-Q200 automotive qualification, suitable for applications requiring automotive-grade reliability.

Packaging & Inventory: Parts are available in multiple packaging formats (Tape & Reel, Cut Tape, bulk). Inventory levels vary by manufacturer and distributor; verify availability for production volumes.

Physical Dimensions: Thickness specifications range from 0.024" to 0.037" maximum. All variants fit standard 0805 PCB footprints. Verify PCB clearance if height-constrained applications exist.

Manufacturer Selection: Choose based on supply chain preference, lead time, pricing, and existing qualification history within your organization.

Frequently Asked Questions (FAQ)

Q: Can I substitute the ECJ-2VC1H390J with any of these parts directly?

A: Yes. All listed parts meet identical electrical and mechanical specifications. Direct PCB footprint compatibility is confirmed for 0805 (2012 Metric) packages. No circuit redesign is required.

Q: What is the difference between C0G and NP0 temperature coefficients?

A: C0G and NP0 designations are equivalent specifications from different standards organizations. Both indicate zero temperature coefficient performance across the -55°C to 125°C operating range. They are interchangeable.

Q: Does thickness variation affect assembly or performance?

A: Thickness variations (0.024" to 0.037" maximum) are within standard 0805 package tolerances and do not affect electrical performance or standard pick-and-place assembly processes. Verify clearance only in height-constrained applications.

Q: What is MSL 1 (Unlimited) moisture sensitivity?

A: MSL 1 indicates the lowest moisture sensitivity level. These parts require no special moisture control during storage or handling and have unlimited shelf life under normal conditions.

Q: Is the AC0805JRNPO9BN390 suitable for automotive applications?

A: Yes. The AC0805JRNPO9BN390 carries AEC-Q200 automotive qualification and is rated for automotive applications. Other parts in this list are general-purpose grade unless otherwise specified.

Q: How do I verify part compatibility before ordering?

A: Cross-reference the capacitance (39 pF), tolerance (±5%), voltage rating (50V), temperature coefficient (C0G/NP0), and package (0805) specifications. All listed parts match these parameters exactly.

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