ECJ-2VC1H181J Equivalent & Substitute Parts

Part Overview

The ECJ-2VC1H181J is a 180 pF ±5% 50V ceramic capacitor in C0G/NP0 temperature coefficient, manufactured by Panasonic Electronic Components in 0805 (2012 Metric) surface mount package. This part is classified as obsolete, making equivalent substitute parts necessary for ongoing production and design continuity. The C0G/NP0 temperature coefficient and 50V rated voltage establish the core electrical requirements for direct substitution.

Key Parameters

Parameter	Value
Capacitance	180 pF
Tolerance	±5%
Voltage - Rated	50V
Temperature Coefficient	C0G, NP0
Operating Temperature Range	-55°C ~ 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-2VC1H181J are qualified based on the following mandatory electrical and mechanical parameters:

Capacitance: 180 pF (exact match required)
Tolerance: ±5% (exact match required)
Voltage - Rated: 50V minimum (equal or higher voltage rating acceptable)
Temperature Coefficient: C0G/NP0 (exact match required)
Operating Temperature Range: -55°C ~ 125°C (exact match required)
Package / Case: 0805 (2012 Metric) (exact match required)
Mounting Type: Surface Mount, MLCC (exact match required)
Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

All substitute parts listed meet these core requirements. Physical dimensions (length, width, thickness) may vary within acceptable manufacturing tolerances for the 0805 package class. Compliance certifications (RoHS, REACH) and product status (Active vs. Not For New Designs) are secondary considerations for component selection.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage	Temp Coeff	Operating Temp	Package	Thickness (Max)	Product Status	RoHS Status
ECJ-2VC1H181J	Panasonic	180 pF	±5%	50V	C0G, NP0	-55°C ~ 125°C	0805	0.028" (0.70mm)	Obsolete	Not specified
08055A181JA12A	KYOCERA AVX	180 pF	±5%	50V	C0G, NP0	-55°C ~ 125°C	0805	0.037" (0.94mm)	Active	RoHS non-compliant
C0805C181J5GAC7800	KEMET	180 pF	±5%	50V	C0G, NP0	-55°C ~ 125°C	0805	0.035" (0.88mm)	Active	ROHS3 Compliant
CC0805JRNPO9BN181	YAGEO	180 pF	±5%	50V	C0G, NP0	-55°C ~ 125°C	0805	0.024" (0.60mm)	Active	ROHS3 Compliant
CL21C181JBANNNC	Samsung Electro-Mechanics	180 pF	±5%	50V	C0G, NP0	-55°C ~ 125°C	0805	0.030" (0.75mm)	Active	ROHS3 Compliant
CL21C181JBANNND	Samsung Electro-Mechanics	180 pF	±5%	50V	C0G, NP0	-55°C ~ 125°C	0805	0.030" (0.75mm)	Active	ROHS3 Compliant
GRM2165C1H181JA01D	Murata Electronics	180 pF	±5%	50V	C0G, NP0	-55°C ~ 125°C	0805	0.028" (0.70mm)	Not For New Designs	ROHS3 Compliant
KGM21BCG1H181JM	KYOCERA AVX	180 pF	±5%	50V	C0G, NP0	-55°C ~ 125°C	0805	0.037" (0.94mm)	Active	ROHS3 Compliant
KGM21BCG1H181JT	KYOCERA AVX	180 pF	±5%	50V	C0G, NP0	-55°C ~ 125°C	0805	0.037" (0.94mm)	Active	ROHS3 Compliant
QSCT251Q181J1GV001E	Johanson Technology Inc.	180 pF	±5%	250V	C0G, NP0	-55°C ~ 125°C	0805	0.046" (1.17mm)	Active	ROHS3 Compliant
VJ0805A181JXACW1BC	Vishay Vitramon	180 pF	±5%	50V	C0G, NP0	-55°C ~ 125°C	0805	0.030" (0.75mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Active Status, ROHS3 Compliant)

For new designs and ongoing production requiring maximum compliance and long-term availability, select from the following active parts with ROHS3 certification:

C0805C181J5GAC7800 (KEMET): Active status with 23,578 units in stock. ROHS3 compliant. Thickness 0.035" (0.88mm) within standard 0805 tolerance.
CC0805JRNPO9BN181 (YAGEO): Active status with 62,699 units in stock. ROHS3 compliant. Lowest thickness at 0.024" (0.60mm), suitable for space-constrained applications.
CL21C181JBANNNC (Samsung Electro-Mechanics): Active status with 659 units in stock. ROHS3 compliant. Thickness 0.030" (0.75mm).
CL21C181JBANNND (Samsung Electro-Mechanics): Active status with 603 units in stock. ROHS3 compliant. Thickness 0.030" (0.75mm).
KGM21BCG1H181JT (KYOCERA AVX): Active status with 33,666 units in stock. ROHS3 compliant. Thickness 0.037" (0.94mm).
VJ0805A181JXACW1BC (Vishay Vitramon): Active status with 2,795 units in stock. ROHS3 compliant. Thickness 0.030" (0.75mm).

Secondary Substitutes (Active Status, Non-Compliant or Limited Availability)

08055A181JA12A (KYOCERA AVX): Active status with 678 units in stock. RoHS non-compliant. Thickness 0.037" (0.94mm).
KGM21BCG1H181JM (KYOCERA AVX): Active status with 1,086 units in stock. ROHS3 compliant. Thickness 0.037" (0.94mm).

Higher Voltage Alternative

QSCT251Q181J1GV001E (Johanson Technology Inc.): 250V rated voltage (exceeds 50V requirement). Active status with 9,415 units in stock. ROHS3 compliant. Thickness 0.046" (1.17mm). Suitable for applications requiring higher voltage margin or operating in elevated voltage environments.

Legacy Status (Not Recommended for New Designs)

GRM2165C1H181JA01D (Murata Electronics): Not For New Designs status. ROHS3 compliant. 33,978 units in stock. Thickness 0.028" (0.70mm). Use only for legacy system maintenance or repair.

Frequently Asked Questions (FAQ)

Q: Can I substitute the ECJ-2VC1H181J with any of the listed parts?

A: All listed parts meet the core electrical and mechanical requirements: 180 pF capacitance, ±5% tolerance, 50V minimum rated voltage, C0G/NP0 temperature coefficient, -55°C to 125°C operating range, and 0805 package. Physical thickness varies within acceptable 0805 package tolerances. Verify PCB layout clearance if thickness is critical.

Q: What is the difference between C0G and NP0 designations?

A: C0G and NP0 are equivalent designations for the same temperature coefficient characteristic. C0G is the EIA standard designation; NP0 is the IEC standard designation. Both indicate zero temperature coefficient performance across the -55°C to 125°C operating range.

Q: Why is QSCT251Q181J1GV001E rated at 250V instead of 50V?

A: QSCT251Q181J1GV001E is a higher voltage variant of the same 180 pF capacitor. The 250V rating exceeds the 50V requirement of the original part. Higher voltage-rated capacitors are electrically compatible in 50V applications and provide additional voltage margin. Physical thickness is greater at 0.046" (1.17mm) due to the higher voltage design.

Q: Which substitute offers the best availability?

A: CC0805JRNPO9BN181 (YAGEO) has the highest inventory at 62,699 units in stock. C0805C181J5GAC7800 (KEMET) is the second option with 23,578 units. Both are ROHS3 compliant and active status.

Q: Are there compliance differences between substitutes?

A: Most active substitutes are ROHS3 compliant and REACH unaffected. 08055A181JA12A (KYOCERA AVX) is RoHS non-compliant and REACH affected. GRM2165C1H181JA01D (Murata) is marked Not For New Designs despite ROHS3 compliance. For new production, prioritize ROHS3 compliant parts with Active status.

Q: Does thickness variation affect PCB assembly?

A: Thickness ranges from 0.024" (0.60mm) to 0.046" (1.17mm) across all substitutes. Standard 0805 packages accommodate this range. Verify PCB layout if space above the component is constrained. CC0805JRNPO9BN181 offers the thinnest profile; QSCT251Q181J1GV001E is the thickest.

Q: Can I use GRM2165C1H181JA01D for new designs?

A: GRM2165C1H181JA01D is marked Not For New Designs. Use only for legacy system maintenance or repair. For new production, select from parts with Active status.

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