ECJ-0EB1C333K Equivalent & Substitute Parts

Part Overview

The ECJ-0EB1C333K is a 0.033 µF ±10% 16V ceramic capacitor in X5R temperature coefficient, 0402 (1005 Metric) package, manufactured by Panasonic Electronic Components. This part is classified as Obsolete, making substitute components necessary for new designs and ongoing production support. The X5R temperature coefficient provides stable capacitance across -55°C to 85°C operating range, suitable for general-purpose decoupling and filtering applications in compact surface-mount designs.

Key Parameters

Parameter	Value
Capacitance	0.033 µF
Tolerance	±10%
Voltage Rating	16V
Temperature Coefficient	X5R
Operating Temperature Range	-55°C ~ 85°C
Package / Case	0402 (1005 Metric)
Mounting Type	Surface Mount, MLCC
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria applied strictly:

Primary Substitutes (Direct Equivalents):

Capacitance: 0.033 µF (exact match required)
Voltage Rating: 16V minimum (equal or higher acceptable)
Temperature Coefficient: X5R or X7R (X7R provides extended temperature range -55°C to 125°C)
Package: 0402 (1005 Metric) (exact match required)
Tolerance: ±10% or tighter (±5% acceptable as upgrade)
Mounting: Surface Mount, MLCC (exact match required)

Upgrade Substitutes:

Higher voltage rating (25V) provides design margin
X7R temperature coefficient extends operating range to 125°C
Tighter tolerance (±5%) improves circuit performance
Active product status ensures long-term availability

Secondary Substitutes:

Alternative temperature coefficients (X8R) with extended high-temperature capability
Voltage ratings above 16V with same or compatible package dimensions

Parameter Comparison

Manufacturer	Part Number	Capacitance	Tolerance	Voltage	Temp Coeff	Temp Range	Package	Status	RoHS
Panasonic	ECJ-0EB1C333K	0.033 µF	±10%	16V	X5R	-55°C ~ 85°C	0402	Obsolete	—
Murata	GRM155R61C333KA01D	0.033 µF	±10%	16V	X5R	-55°C ~ 85°C	0402	Not For New Designs	ROHS3
Murata	GRM155R71C333KA01D	0.033 µF	±10%	16V	X7R	-55°C ~ 125°C	0402	Not For New Designs	ROHS3
Taiyo Yuden	TMK105BJ333KV-F	0.033 µF	±10%	25V	X5R	-55°C ~ 85°C	0402	Not For New Designs	ROHS3
Knowles Novacap	0402BB333K250YT	0.033 µF	±10%	25V	X7R	-55°C ~ 125°C	0402	Active	Non-compliant
KEMET	C0402C333J3RAC7867	0.033 µF	±5%	25V	X7R	-55°C ~ 125°C	0402	Active	ROHS3
KEMET	C0402C333J4RAC7867	0.033 µF	±5%	16V	X7R	-55°C ~ 125°C	0402	Active	ROHS3
KEMET	C0402C333K3RAC7867	0.033 µF	±10%	25V	X7R	-55°C ~ 125°C	0402	Active	ROHS3
KEMET	C0402C333K4RAC7867	0.033 µF	±10%	16V	X7R	-55°C ~ 125°C	0402	Active	ROHS3
KEMET	C0402C333K4RAL7867	0.033 µF	±10%	16V	X7R	-55°C ~ 125°C	0402	Active	Non-compliant
TDK	C1005X8R1C333K050BB	0.033 µF	±10%	16V	X8R	-55°C ~ 150°C	0402	Not For New Designs	ROHS3

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): GRM155R61C333KA01D (Murata) provides the closest electrical and mechanical match with X5R temperature coefficient and 16V rating. ROHS3 compliance supports modern manufacturing requirements. However, this part carries "Not For New Designs" status.

For New Designs with Enhanced Performance: C0402C333K4RAC7867 (KEMET) is the recommended primary choice. It maintains 0.033 µF capacitance, ±10% tolerance, and 16V rating with X7R temperature coefficient, extending operating range to 125°C. Active product status ensures long-term availability. ROHS3 compliance meets environmental standards.

For Designs Requiring Voltage Margin: C0402C333K3RAC7867 (KEMET) provides 25V rating with X7R temperature coefficient and ±10% tolerance. Active status and ROHS3 compliance support production continuity.

For Tighter Tolerance Requirements: C0402C333J3RAC7867 (KEMET) offers ±5% tolerance at 25V with X7R coefficient. Active status and ROHS3 compliance ensure availability.

For Extended High-Temperature Applications: C1005X8R1C333K050BB (TDK) extends operating range to 150°C with X8R temperature coefficient, though marked "Not For New Designs."

Frequently Asked Questions (FAQ)

Q: Can GRM155R61C333KA01D replace ECJ-0EB1C333K directly? A: Yes. Both parts share identical electrical specifications: 0.033 µF, ±10% tolerance, 16V rating, X5R temperature coefficient, and 0402 package. Mechanical compatibility is confirmed. However, both parts carry obsolescence or "Not For New Designs" status.

Q: What is the difference between X5R and X7R temperature coefficients? A: X5R maintains capacitance within ±15% across -55°C to 85°C. X7R maintains capacitance within ±15% across -55°C to 125°C. X7R provides extended high-temperature stability at the cost of slightly different capacitance behavior. Both are acceptable substitutes if circuit design permits the extended temperature range.

Q: Why is C0402C333K4RAC7867 recommended for new designs? A: This KEMET part is Active status, ensuring long-term supply. It maintains the original 16V rating and 0.033 µF capacitance with ±10% tolerance. X7R temperature coefficient extends operating range to 125°C without compromising circuit function. ROHS3 compliance meets current manufacturing standards.

Q: Can I use a 25V rated capacitor instead of 16V? A: Yes. Higher voltage ratings are electrically compatible and provide design margin. TMK105BJ333KV-F (Taiyo Yuden) and KEMET C0402C333K3RAC7867 both offer 25V ratings with identical capacitance and tolerance. Verify PCB layout accommodates any minor dimensional variations.

Q: Are all substitute parts available in Tape & Reel packaging? A: Yes. All listed substitutes are supplied in Tape & Reel (TR) packaging, standard for automated assembly processes.

Q: What is the significance of ROHS3 compliance? A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead and other hazardous materials. This is mandatory for most commercial and industrial applications. Parts marked "RoHS non-compliant" may face supply restrictions in regulated markets.

Q: Can I substitute X8R temperature coefficient parts? A: C1005X8R1C333K050BB (TDK) is electrically compatible with extended operating range to 150°C. However, this part is marked "Not For New Designs." Use only if existing inventory exists and long-term supply is not required.

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