ECJ-3VB1C474K Equivalent & Substitute Parts

Part Overview

The ECJ-3VB1C474K is a 0.47 µF ±10% 16V ceramic capacitor in 1206 (3216 Metric) package with X7R temperature coefficient, manufactured by Panasonic Electronic Components. This part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The X7R temperature coefficient and 1206 surface mount package define the core functional requirements for direct substitution in general-purpose bypass and decoupling circuits.

Key Parameters

Parameter	Value
Capacitance	0.47 µF
Tolerance	±10%
Voltage Rating	16V
Temperature Coefficient	X7R
Operating Temperature Range	-55°C to 125°C
Package / Case	1206 (3216 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: 0.47 µF (exact match required)
Tolerance: ±10% (exact match required)
Voltage Rating: 16V (exact match required)
Temperature Coefficient: X7R (exact match required)
Operating Temperature Range: -55°C to 125°C (exact match required)
Package / Case: 1206 (3216 Metric) (exact match required)
Mounting Type: Surface Mount, MLCC (exact match required)
Moisture Sensitivity Level: MSL 1 (exact match required)

All substitute parts listed below meet these criteria. Physical dimensions (thickness, length, width) may vary within manufacturing tolerances and do not affect electrical substitution eligibility. Compliance certifications (RoHS, REACH) and product status (Active vs. Not For New Designs) are secondary considerations for component selection based on application requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage	Temp Coeff	Package	Product Status	RoHS Status	Thickness (Max)
ECJ-3VB1C474K	Panasonic Electronic Components	0.47 µF	±10%	16V	X7R	1206	Obsolete	Not specified	0.037" (0.95mm)
1206YC474KA72A	KYOCERA AVX	0.47 µF	±10%	16V	X7R	1206	Active	RoHS non-compliant	0.050" (1.27mm)
1206YC474KAT2P	KYOCERA AVX	0.47 µF	±10%	16V	X7R	1206	Active	ROHS3 Compliant	0.050" (1.27mm)
C1206C474K4RAC7800	KEMET	0.47 µF	±10%	16V	X7R	1206	Active	ROHS3 Compliant	0.039" (1.00mm)
CL31B474KOCNNNC	Samsung Electro-Mechanics	0.47 µF	±10%	16V	X7R	1206	Active	ROHS3 Compliant	0.039" (1.00mm)
CL31B474KOCNNWC	Samsung Electro-Mechanics	0.47 µF	±10%	16V	X7R	1206	Active	ROHS3 Compliant	0.039" (1.00mm)
GRM319R71C474KA01D	Murata Electronics	0.47 µF	±10%	16V	X7R	1206	Not For New Designs	ROHS3 Compliant	0.037" (0.95mm)
KGM31HR71C474KL	KYOCERA AVX	0.47 µF	±10%	16V	X7R	1206	Active	ROHS3 Compliant	0.075" (1.90mm)
KGM31HR71C474KU	KYOCERA AVX	0.47 µF	±10%	16V	X7R	1206	Active	ROHS3 Compliant	0.075" (1.90mm)
VJ1206Y474KXJRW1BC	Vishay Vitramon	0.47 µF	±10%	16V	X7R	1206	Active	ROHS3 Compliant	0.051" (1.30mm)
VJ1206Y474KXJTW1BC	Vishay Vitramon	0.47 µF	±10%	16V	X7R	1206	Active	ROHS3 Compliant	0.051" (1.30mm)

Engineering Selection Recommendations

For new designs and production environments requiring regulatory compliance, select from parts with Active product status and ROHS3 Compliant certification:

C1206C474K4RAC7800 (KEMET) — 39,019 units in stock; Tape & Reel packaging; 0.039" thickness
CL31B474KOCNNNC (Samsung Electro-Mechanics) — 721 units in stock; 0.039" thickness
CL31B474KOCNNWC (Samsung Electro-Mechanics) — 1,100 units in stock; 0.039" thickness
KGM31HR71C474KL (KYOCERA AVX) — 921 units in stock; Tape & Reel packaging; 0.075" thickness
KGM31HR71C474KU (KYOCERA AVX) — 26,282 units in stock; Tape & Reel packaging; 0.075" thickness
VJ1206Y474KXJRW1BC (Vishay Vitramon) — 881 units in stock; Tape & Reel packaging; 0.051" thickness
VJ1206Y474KXJTW1BC (Vishay Vitramon) — 4,038 units in stock; Tape & Reel packaging; 0.051" thickness

For legacy system maintenance where RoHS compliance is not required, 1206YC474KA72A (KYOCERA AVX) is available with 1,136 units in stock.

For applications where new design qualification is not required, GRM319R71C474KA01D (Murata Electronics) carries Not For New Designs status but remains electrically equivalent with 6,137 units in stock.

Frequently Asked Questions (FAQ)

Q: Can I substitute ECJ-3VB1C474K with any of the listed parts?

A: Yes. All listed parts meet the electrical and mechanical requirements: 0.47 µF ±10% capacitance, 16V voltage rating, X7R temperature coefficient, 1206 package, and MSL 1 moisture sensitivity. Physical thickness variations do not affect electrical performance or PCB assembly compatibility within standard 1206 footprint tolerances.

Q: What is the difference between Active and Not For New Designs status?

A: Active parts are in current production and recommended for new designs. Not For New Designs parts (such as GRM319R71C474KA01D) remain available for existing applications but should not be selected for new product development. Both are electrically equivalent.

Q: Does RoHS compliance matter for my application?

A: RoHS3 compliance is required for products sold in the European Union and many other regulated markets. If your application requires RoHS certification, select from parts marked ROHS3 Compliant. For non-regulated applications, RoHS non-compliant parts such as 1206YC474KA72A are acceptable.

Q: Why do substitute parts have different thicknesses?

A: Thickness variation (0.037" to 0.075") reflects different manufacturer design approaches within the 1206 package specification. All thicknesses are within standard PCB assembly tolerances and do not affect footprint compatibility or electrical performance.

Q: Which substitute has the highest inventory availability?

A: KGM31HR71C474KU (KYOCERA AVX) has 26,282 units in stock, followed by C1206C474K4RAC7800 (KEMET) with 39,019 units. Both are Active, ROHS3 Compliant, and available in Tape & Reel packaging.

Q: Can I mix different manufacturers in the same assembly?

A: Yes. All substitute parts are electrically and mechanically equivalent. Mixing manufacturers in the same PCB assembly is acceptable from an engineering standpoint. Verify with your procurement and quality processes for any internal specifications.

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