C1005X7R1H331M050BA Equivalent & Substitute Parts

Part Overview

The C1005X7R1H331M050BA is a 330 pF ±20% 50V ceramic capacitor with X7R temperature coefficient in 0402 (1005 Metric) surface mount package manufactured by TDK Corporation. This part is classified as Obsolete, necessitating identification of equivalent and substitute components for ongoing production and maintenance applications. Substitute parts are selected based on matching capacitance, voltage rating, package dimensions, and operating temperature range while accommodating variations in tolerance and temperature coefficient characteristics.

Key Parameters

Parameter	Value
Capacitance	330 pF
Tolerance	±20%
Voltage - Rated	50V
Temperature Coefficient	X7R
Operating Temperature	-55°C ~ 125°C
Package / Case	0402 (1005 Metric)
Size / Dimension	0.039" L x 0.020" W (1.00mm x 0.50mm)
Thickness (Max)	0.022" (0.55mm)
Mounting Type	Surface Mount, MLCC
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria applied strictly to the provided parameters:

Primary Matching Criteria:

Capacitance: 330 pF (exact match required)
Voltage Rating: 50V minimum (equal or higher acceptable)
Package: 0402 (1005 Metric) (exact match required)
Operating Temperature Range: -55°C ~ 125°C (exact match required)
Mounting Type: Surface Mount, MLCC (exact match required)

Secondary Variation Parameters:

Tolerance: ±1%, ±2%, ±5%, ±10%, ±20% (all acceptable based on application requirements)
Temperature Coefficient: X7R or C0G/NP0 (both acceptable; C0G/NP0 provides superior stability)

Substitute parts are grouped into three categories: MFR Recommended (TDK Corporation alternatives with improved specifications), Direct Manufacturer (KYOCERA AVX equivalents with matching X7R characteristics), and Upgrade (KEMET alternatives offering enhanced performance or higher voltage ratings).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage	Temp Coeff	Operating Temp	Package	Product Status	RoHS Status
C1005X7R1H331M050BA	TDK Corporation	330 pF	±20%	50V	X7R	-55°C ~ 125°C	0402	Obsolete	REACH Unaffected
C1005C0G1H331F050BA	TDK Corporation	330 pF	±1%	50V	C0G, NP0	-55°C ~ 125°C	0402	Not For New Designs	ROHS3 Compliant
C1005C0G1H331G050BA	TDK Corporation	330 pF	±2%	50V	C0G, NP0	-55°C ~ 125°C	0402	Not For New Designs	ROHS3 Compliant
C1005C0G1H331J050BA	TDK Corporation	330 pF	±5%	50V	C0G, NP0	-55°C ~ 125°C	0402	Not For New Designs	ROHS3 Compliant
KGM05AR71H331KH	KYOCERA AVX	330 pF	±10%	50V	X7R	-55°C ~ 125°C	0402	Active	ROHS3 Compliant
KGM05AR71H331MH	KYOCERA AVX	330 pF	±20%	50V	X7R	-55°C ~ 125°C	0402	Active	ROHS3 Compliant
C0402C331G5GAC7867	KEMET	330 pF	±2%	50V	C0G, NP0	-55°C ~ 125°C	0402	Active	ROHS3 Compliant
C0402C331J5GAC7867	KEMET	330 pF	±5%	50V	C0G, NP0	-55°C ~ 125°C	0402	Active	ROHS3 Compliant
C0402C331J5RAC7867	KEMET	330 pF	±5%	50V	X7R	-55°C ~ 125°C	0402	Active	ROHS3 Compliant
C0402C331JAGAC7867	KEMET	330 pF	±5%	250V	C0G, NP0	-55°C ~ 125°C	0402	Active	ROHS3 Compliant
C0402C331K5GAC7867	KEMET	330 pF	±10%	50V	C0G, NP0	-55°C ~ 125°C	0402	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Replacement (Matching X7R Temperature Coefficient): KGM05AR71H331MH (KYOCERA AVX) provides direct functional equivalence with identical X7R temperature coefficient and ±20% tolerance. This part carries Active product status and ROHS3 compliance, making it suitable for new production and maintenance applications.

Preferred Alternatives (Enhanced Specifications): TDK Corporation C0G/NP0 series parts (C1005C0G1H331F050BA, C1005C0G1H331G050BA, C1005C0G1H331J050BA) offer superior temperature stability through C0G/NP0 temperature coefficient with tighter tolerances (±1%, ±2%, ±5%). These parts maintain 50V voltage rating and 0402 package compatibility. ROHS3 compliance is confirmed for all TDK alternatives.

Active Production Alternatives: KEMET C0402C series parts deliver Active product status across multiple tolerance and temperature coefficient options. C0402C331J5RAC7867 matches the original X7R characteristic with ±5% tolerance. C0402C331JAGAC7867 provides elevated 250V voltage rating while maintaining 330 pF capacitance and 0402 package, suitable for applications requiring higher voltage margin.

Selection Basis: All recommended substitutes maintain the mandatory parameters: 330 pF capacitance, 50V minimum voltage rating, 0402 package dimensions, -55°C to 125°C operating temperature range, and surface mount MLCC mounting type. Product status and ROHS3 compliance are confirmed for all Active alternatives, ensuring regulatory compliance and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can C0G/NP0 temperature coefficient parts replace the original X7R part? A: Yes. Both temperature coefficients meet the -55°C to 125°C operating temperature requirement. C0G/NP0 provides superior capacitance stability across temperature variations, making it suitable for precision applications. X7R maintains adequate stability for general-purpose bypass and decoupling applications.

Q: What tolerance variations are acceptable for substitution? A: Any tolerance from ±1% to ±20% is acceptable provided the application circuit design accommodates the capacitance variation. Tighter tolerances (±1%, ±2%) are preferred for precision circuits; looser tolerances (±10%, ±20%) are acceptable for general-purpose filtering and decoupling.

Q: Are all substitute parts available in the same packaging format? A: All listed substitutes use 0402 (1005 Metric) surface mount package with identical footprint dimensions (0.039" L x 0.020" W). Packaging format variations (Tape & Reel vs. Cut Tape) do not affect electrical or mechanical compatibility.

Q: Why is C0402C331JAGAC7867 listed as a substitute despite 250V rating? A: Higher voltage rating (250V vs. 50V) is acceptable for direct substitution. The part maintains 330 pF capacitance, 0402 package, and -55°C to 125°C operating temperature. Elevated voltage rating provides additional design margin without affecting circuit performance in 50V applications.

Q: Which substitute offers the best supply availability? A: C0402C331J5GAC7867 (KEMET) shows highest inventory (227,580 pcs) with Active product status. KGM05AR71H331KH (KYOCERA AVX) provides 166,159 pcs inventory with matching X7R temperature coefficient. Both ensure long-term supply continuity.

Q: Are all substitutes RoHS and REACH compliant? A: All listed substitutes carry ROHS3 compliance and REACH Unaffected status, matching the original part's regulatory classification. ECCN classification remains EAR99 and HTSUS code 8532.24.0020 across all alternatives.

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