ECJ-2YC2D151J Equivalent & Substitute Parts

Part Overview

The ECJ-2YC2D151J is a 150 pF ±5% 200V ceramic capacitor in C0G/NP0 dielectric, 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. The C0G/NP0 temperature coefficient and 200V rated voltage establish the baseline electrical requirements for direct substitution.

Key Parameters

Parameter	Value
Capacitance	150 pF
Tolerance	±5%
Voltage - Rated	200V
Temperature Coefficient	C0G, NP0
Operating Temperature Range	-55°C ~ 125°C
Package / Case	0805 (2012 Metric)
Mounting Type	Surface Mount, MLCC
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts are grouped into two categories based on electrical parameter compatibility:

Direct Equivalents maintain identical electrical specifications: 150 pF capacitance, ±5% tolerance, 200V rated voltage, and C0G/NP0 temperature coefficient. These parts are interchangeable without circuit redesign.

Upgrade Options provide enhanced specifications in one or more parameters while maintaining the core 150 pF capacitance and 0805 package form factor. Upgrades include improved tolerance (±1% or ±2%), higher voltage ratings (250V, 450V, or 500V), or extended temperature ranges. These parts are backward compatible but offer superior performance characteristics.

The substitution logic is determined by:

Capacitance value (150 pF)
Tolerance grade (±5% minimum)
Voltage rating (200V minimum)
Temperature coefficient (C0G/NP0 required)
Package form factor (0805/2012 Metric)
Mounting type (Surface Mount, MLCC)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage	Temp Coeff	Operating Temp	Package	Product Status	Thickness (Max)
ECJ-2YC2D151J	Panasonic	150 pF	±5%	200V	C0G, NP0	-55°C ~ 125°C	0805 (2012)	Obsolete	0.049" (1.25mm)
C0805C151J2GAC7800	KEMET	150 pF	±5%	200V	C0G, NP0	-55°C ~ 125°C	0805 (2012)	Active	0.035" (0.88mm)
CC0805JRNPOABN151	YAGEO	150 pF	±5%	200V	C0G, NP0	-55°C ~ 125°C	0805 (2012)	Active	0.028" (0.70mm)
KGM21BCG2D151JT	KYOCERA AVX	150 pF	±5%	200V	C0G, NP0	-55°C ~ 125°C	0805 (2012)	Active	0.037" (0.94mm)
C0805C151F2GAC7800	KEMET	150 pF	±1%	200V	C0G, NP0	-55°C ~ 125°C	0805 (2012)	Active	0.035" (0.88mm)
C0805C151G2GAC7800	KEMET	150 pF	±2%	200V	C0G, NP0	-55°C ~ 125°C	0805 (2012)	Active	0.035" (0.88mm)
C0805C151JAGAC7800	KEMET	150 pF	±5%	250V	C0G, NP0	-55°C ~ 125°C	0805 (2012)	Active	0.035" (0.88mm)
C0805C151JCGAC7800	KEMET	150 pF	±5%	500V	C0G, NP0	-55°C ~ 125°C	0805 (2012)	Active	0.055" (1.40mm)
C2012C0G2W151J060AA	TDK Corporation	150 pF	±5%	450V	C0G, NP0	-55°C ~ 125°C	0805 (2012)	Active	0.030" (0.75mm)
C2012C0G2W151K060AA	TDK Corporation	150 pF	±10%	450V	C0G, NP0	-55°C ~ 125°C	0805 (2012)	Not For New Designs	0.030" (0.75mm)
C2012NP02W151J060AA	TDK Corporation	150 pF	±5%	450V	C0G, NP0	-55°C ~ 150°C	0805 (2012)	Active	0.030" (0.75mm)

Engineering Selection Recommendations

For Direct Replacement (Active Status, Identical Specifications):

C0805C151J2GAC7800 (KEMET), CC0805JRNPOABN151 (YAGEO), and KGM21BCG2D151JT (KYOCERA AVX) are direct electrical equivalents with active product status. All three maintain 150 pF ±5% at 200V with C0G/NP0 temperature coefficient. KEMET and YAGEO parts feature reduced thickness (0.035" and 0.028" respectively) compared to the original 0.049", providing potential PCB assembly advantages. All direct equivalents are RoHS3 compliant and REACH unaffected.

For Improved Tolerance (Active Status):

C0805C151F2GAC7800 (±1% tolerance) and C0805C151G2GAC7800 (±2% tolerance) from KEMET provide tighter capacitance tolerances while maintaining 200V rating and active product status. These are suitable for applications requiring enhanced precision.

For Higher Voltage Applications (Active Status):

C0805C151JAGAC7800 (250V), C0805C151JCGAC7800 (500V), and C2012C0G2W151J060AA (450V) provide voltage margin above the original 200V specification. The 500V option includes high voltage features. The TDK C2012NP02W151J060AA offers 450V with extended operating temperature to 150°C.

Parts to Avoid:

C2012C0G2W151K060AA carries "Not For New Designs" status and features ±10% tolerance, exceeding the original ±5% specification. This part is unsuitable for new applications.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with higher voltage rating than the original 200V specification?

A: Yes. Higher voltage-rated capacitors (250V, 450V, 500V) are backward compatible with 200V circuits. The capacitor will operate safely at lower voltages. Verify PCB layout accommodates any thickness differences, particularly for the 500V option (0.055" maximum).

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

A: C0G and NP0 are equivalent temperature coefficient classifications used by different manufacturers. Both indicate negligible capacitance change across the operating temperature range. All listed substitutes maintain this specification.

Q: Are all substitute parts RoHS3 compliant?

A: All active-status substitute parts listed are RoHS3 compliant and REACH unaffected. The obsolete original part (ECJ-2YC2D151J) and the "Not For New Designs" part (C2012C0G2W151K060AA) do not carry current compliance certifications.

Q: Does package thickness affect PCB assembly?

A: Yes. The original part specifies 0.049" (1.25mm) maximum thickness. KEMET C0805C151J2GAC7800 and YAGEO CC0805JRNPOABN151 are thinner (0.035" and 0.028" respectively), potentially improving reflow profile. The KEMET 500V option is thicker (0.055"), requiring verification of available PCB clearance.

Q: Can I substitute a ±10% tolerance part for the original ±5% specification?

A: No. The C2012C0G2W151K060AA with ±10% tolerance exceeds the original tolerance band. Use only parts with ±5% or tighter tolerance to maintain circuit performance specifications.

Q: What is Moisture Sensitivity Level (MSL) 1?

A: MSL 1 indicates unlimited shelf life without moisture baking requirements. All listed parts carry MSL 1 rating, eliminating moisture management concerns during storage and handling.

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