M30U334M1 Equivalent & Substitute Parts

Part Overview

The M30U334M1 is a 0.33 µF ceramic capacitor rated at 100V with Z5U temperature coefficient, manufactured by Cornell Dubilier Electronics (CDE) in radial through-hole configuration. This part is classified as obsolete, necessitating identification of active equivalent and substitute components for ongoing production and repair applications. The M30 series radial ceramic capacitor remains in general-purpose applications where 0.33 µF capacitance at 100V is required.

Substiute Parts

M30U334M1

Cornell Dubilier Electronics (CDE)In Stock: 808M30U334M1 Datasheet

Current PartRFQ

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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C330C334M1U5TA

KEMETIn Stock: 1597C330C334M1U5TA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the M30U334M1 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Capacitance value: 0.33 µF (exact match required)
• Voltage rating: 100V (minimum requirement)
• Mounting type: Through Hole (mechanical compatibility)
• Package type: Radial (form factor compatibility)
• Lead spacing: 0.200" (5.08mm) (PCB layout compatibility)

Substitution Categories:

Equivalent Parts (Same Temperature Coefficient - Z5U): Parts maintaining Z5U temperature coefficient with identical electrical specifications. These provide direct functional equivalence with matching operating temperature range (10°C ~ 85°C).

Upgrade Parts (Enhanced Temperature Coefficient - C0G/NP0 or X7R): Parts with improved temperature stability characteristics. C0G/NP0 and X7R temperature coefficients provide superior performance across extended operating ranges (-55°C ~ 125°C) compared to the original Z5U specification. These parts accommodate tighter tolerance requirements (±1%, ±2%, ±5%, ±10%) while maintaining identical capacitance and voltage ratings.

All substitute parts are active products with RoHS3 compliance, addressing the RoHS non-compliant status of the original M30U334M1.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent Replacement:

C330C334M1U5TA is the direct functional equivalent to M30U334M1. This KEMET part maintains identical electrical specifications: 0.33 µF capacitance, 100V voltage rating, ±20% tolerance, and Z5U temperature coefficient with matching 10°C ~ 85°C operating range. The part is active and RoHS3 compliant, addressing regulatory compliance requirements of the obsolete original component. Lead spacing and radial through-hole configuration are identical, ensuring PCB compatibility without layout modification.

Upgrade Alternatives with Enhanced Performance:

For applications requiring improved temperature stability and tighter capacitance tolerance, KEMET C0G/NP0 temperature coefficient parts provide superior performance characteristics:

• C330C334F1G5TA (±1% tolerance): Highest precision option with C0G/NP0 stability across -55°C ~ 125°C operating range
• C330C334G1G5TA (±2% tolerance): Enhanced precision with C0G/NP0 stability
• C330C334J1G5TA (±5% tolerance): Moderate precision improvement with C0G/NP0 stability
• C330C334K1G5TA (±10% tolerance): Tolerance equivalent to original with C0G/NP0 stability

X7R Alternative:

C330C334K1R5TA provides X7R temperature coefficient with ±10% tolerance and extended -55°C ~ 125°C operating range. This part is suitable for applications where X7R stability characteristics are acceptable and capacitance tolerance of ±10% meets circuit requirements.

All substitute parts maintain 0.200" (5.08mm) lead spacing and radial through-hole mounting configuration, ensuring direct PCB compatibility. All recommended parts are active products with RoHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can C330C334M1U5TA directly replace M30U334M1 without circuit modification?

A: Yes. C330C334M1U5TA is electrically and mechanically equivalent to M30U334M1. Both parts have identical capacitance (0.33 µF), voltage rating (100V), tolerance (±20%), temperature coefficient (Z5U), lead spacing (0.200"), and radial through-hole configuration. No circuit modification is required.

Q: What is the difference between Z5U and C0G/NP0 temperature coefficients?

A: Z5U temperature coefficient specifies capacitance change of +22% to -56% across the 10°C ~ 85°C operating range. C0G/NP0 temperature coefficient specifies capacitance change of ±30 ppm/°C across the -55°C ~ 125°C operating range, providing superior stability and extended temperature operation. C0G/NP0 parts are suitable for applications requiring stable capacitance across wider temperature ranges.

Q: Are all substitute parts RoHS compliant?

A: Yes. All KEMET substitute parts listed (C330C334M1U5TA, C330C334F1G5TA, C330C334G1G5TA, C330C334J1G5TA, C330C334K1G5TA, C330C334K1R5TA) are RoHS3 compliant. The original M30U334M1 is RoHS non-compliant.

Q: What tolerance should I select for my application?

A: Tolerance selection depends on circuit requirements. The original M30U334M1 specifies ±20% tolerance. If tighter tolerance is required, C0G/NP0 parts are available in ±1%, ±2%, ±5%, and ±10% tolerances. If ±20% tolerance is acceptable, C330C334M1U5TA (Z5U) or C330C334K1G5TA (C0G/NP0) are suitable selections.

Q: Can I use C330C334K1R5TA (X7R) instead of the Z5U original?

A: Yes, if circuit design accepts X7R temperature coefficient characteristics. X7R provides capacitance stability of ±15% across -55°C ~ 125°C operating range. This differs from Z5U performance but maintains identical 0.33 µF capacitance and 100V voltage rating. X7R is suitable for general-purpose applications where extended temperature operation is beneficial.

Q: Are the physical dimensions compatible with the original M30U334M1?

A: Lead spacing is identical at 0.200" (5.08mm) for all substitute parts, ensuring PCB compatibility. KEMET substitute parts have slightly smaller body dimensions (0.280" L x 0.160" W versus 0.300" L x 0.200" W original), which is compatible with standard PCB layouts. Height-seated specifications are within acceptable ranges for through-hole mounting.

Q: What inventory availability should I expect?

A: KEMET substitute parts maintain active production status with substantial inventory levels: C330C334M1U5TA (1521 pcs), C330C334F1G5TA (1081 pcs), C330C334G1G5TA (1091 pcs), C330C334J1G5TA (815 pcs), C330C334K1G5TA (796 pcs), and C330C334K1R5TA (1731 pcs). The original M30U334M1 is obsolete with limited remaining inventory (781 pcs).