M30R334K1 Equivalent & Substitute Parts

Part Overview

The M30R334K1 is a 0.33 µF ±10% 100V ceramic capacitor with X7R temperature coefficient manufactured by Cornell Dubilier Electronics (CDE) in radial through-hole configuration. This component is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing design support and procurement requirements. The part operates across -55°C to 125°C and is suitable for general-purpose applications requiring stable capacitance performance across the operating temperature range.

Substiute Parts

M30R334K1

Cornell Dubilier Electronics (CDE)In Stock: 1108M30R334K1 Datasheet

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C330C334F1G5TA

KEMETIn Stock: 1184C330C334F1G5TA Datasheet

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C330C334G1G5TA

KEMETIn Stock: 1198C330C334G1G5TA Datasheet

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C330C334J1G5TA

KEMETIn Stock: 911C330C334J1G5TA Datasheet

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C330C334K1G5TA

KEMETIn Stock: 867C330C334K1G5TA Datasheet

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C330C334K1R5TA

KEMETIn Stock: 1805C330C334K1R5TA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the M30R334K1 is determined by strict equivalence in the following critical parameters: capacitance value (0.33 µF), voltage rating (100V), and lead spacing (0.200"). The substitute parts are grouped into two categories based on temperature coefficient characteristics:

Upgrade Category (C0G/NP0 Temperature Coefficient): Parts C330C334F1G5TA, C330C334G1G5TA, C330C334J1G5TA, and C330C334K1G5TA feature C0G (NP0) temperature coefficient, which provides superior capacitance stability across temperature variations compared to X7R. These parts maintain tighter tolerance specifications (±1%, ±2%, ±5%, ±10% respectively) and are manufactured by KEMET with active product status and RoHS3 compliance.

Similar Category (X7R Temperature Coefficient): Part C330C334K1R5TA maintains identical temperature coefficient (X7R) and tolerance (±10%) to the original M30R334K1, offering direct functional equivalence with improved compliance status and active availability from KEMET.

All substitute parts share the following critical parameters with the original: 0.33 µF capacitance, 100V voltage rating, -55°C to 125°C operating temperature range, through-hole radial mounting, and 0.200" lead spacing.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Functional Equivalence): The C330C334K1R5TA is the appropriate selection when maintaining identical electrical characteristics is required. This part matches the original M30R334K1 in capacitance (0.33 µF), tolerance (±10%), voltage rating (100V), and temperature coefficient (X7R). The C330C334K1R5TA is manufactured by KEMET with active product status, RoHS3 compliance, and confirmed availability of 1731 units in stock. The formed lead style differs from the original straight leads but maintains the 0.200" lead spacing for PCB compatibility.

For Enhanced Performance (C0G/NP0 Upgrade): The C0G (NP0) temperature coefficient variants (C330C334F1G5TA, C330C334G1G5TA, C330C334J1G5TA, C330C334K1G5TA) provide superior capacitance stability across the -55°C to 125°C operating range compared to X7R. These parts are suitable for applications where tighter capacitance tolerance and reduced temperature-dependent drift are beneficial. Selection among these four parts depends on tolerance requirements: ±1% (C330C334F1G5TA), ±2% (C330C334G1G5TA), ±5% (C330C334J1G5TA), or ±10% (C330C334K1G5TA). All four are KEMET GoldMax 300 Comm C0G series with active status, RoHS3 compliance, and low ESL characteristics.

All substitute parts are REACH Unaffected and classified under ECCN EAR99 and HTSUS 8532.24.0060, matching the original part's regulatory classification.

Frequently Asked Questions (FAQ)

Q: Can C330C334K1R5TA directly replace M30R334K1 in existing designs?

A: Yes. The C330C334K1R5TA maintains identical electrical specifications: 0.33 µF capacitance, ±10% tolerance, 100V rating, X7R temperature coefficient, and -55°C to 125°C operating range. The 0.200" lead spacing is preserved for PCB compatibility. The formed lead style differs from the original straight leads but does not affect electrical performance or board-level functionality.

Q: What is the difference between X7R and C0G temperature coefficients?

A: X7R temperature coefficient exhibits capacitance variation of ±15% across the -55°C to 125°C operating range. C0G (NP0) temperature coefficient exhibits minimal capacitance variation (typically ±30 ppm/°C) across the same range. C0G provides superior stability for applications sensitive to temperature-dependent capacitance drift.

Q: Are all substitute parts RoHS compliant?

A: Yes. All KEMET substitute parts (C330C334K1R5TA, C330C334F1G5TA, C330C334G1G5TA, C330C334J1G5TA, C330C334K1G5TA) are RoHS3 compliant. The original M30R334K1 is RoHS non-compliant.

Q: What is the difference between the four C0G upgrade options?

A: The four C0G variants differ only in tolerance specification: C330C334F1G5TA (±1%), C330C334G1G5TA (±2%), C330C334J1G5TA (±5%), and C330C334K1G5TA (±10%). All other electrical and mechanical parameters are identical. Selection depends on the tolerance requirement of the application.

Q: Do the substitute parts have different physical dimensions?

A: The substitute parts have slightly different body dimensions (0.280" L x 0.160" W versus 0.300" L x 0.200" W for the original) but maintain the critical 0.200" lead spacing for PCB compatibility. Height-seated maximum is 0.420" for C0G variants and 0.360" for the X7R variant, compared to 0.420" for the original.

Q: What inventory levels are available for each substitute part?

A: C330C334K1R5TA: 1731 units; C330C334F1G5TA: 1081 units; C330C334G1G5TA: 1091 units; C330C334J1G5TA: 815 units; C330C334K1G5TA: 796 units.