ECQ-M2103KZ Equivalent & Substitute Parts

Part Overview

The ECQ-M2103KZ is a 10000 pF film capacitor rated for 200V DC operation with polyester dielectric material and radial through-hole mounting. Manufactured by Panasonic Electronic Components, this component is classified as obsolete. Due to its discontinued status, identifying functionally equivalent substitute parts is essential for ongoing system maintenance, repair, and new design implementations where this specification remains applicable.

Substiute Parts

ECQ-M2103KZ

Panasonic Electronic ComponentsIn Stock: 928ECQ-M2103KZ Datasheet

Current PartRFQ

ECQ-E2103KF

Panasonic Electronic ComponentsIn Stock: 1589ECQ-E2103KF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the ECQ-M2103KZ is determined by the following critical parameters:

• Capacitance Value: Must be 10000 pF (no tolerance deviation acceptable for direct substitution)
• Tolerance: Must be ±10% or tighter
• Voltage Rating - DC: Must be equal to or greater than 200V
• Dielectric Material: Polyester or metallized polyester acceptable
• Mounting Type: Through hole radial configuration required
• Termination: PC pins required
• Operating Temperature: Must support minimum -40°C ~ 85°C range

The ECQ-E2103KF meets all substitution criteria with enhanced specifications in voltage rating and operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The ECQ-E2103KF is a direct functional substitute for the ECQ-M2103KZ. The substitute part provides superior specifications: increased DC voltage rating (250V versus 200V), extended operating temperature range (-40°C ~ 105°C versus -40°C ~ 85°C), and active product status ensuring ongoing availability. The ECQ-E2103KF is ROHS3 compliant, meeting current regulatory requirements.

Note that the lead spacing differs (0.295" versus 0.374"), requiring PCB layout verification before implementation. Both parts share identical capacitance, tolerance, and termination specifications, confirming electrical compatibility for the specified application.

Frequently Asked Questions (FAQ)

Q: Can the ECQ-E2103KF replace the ECQ-M2103KZ in existing designs?

A: Yes. The substitute part meets all electrical requirements: identical 10000 pF capacitance, ±10% tolerance, and exceeds the 200V DC requirement with 250V rating. Physical lead spacing differs and must be verified against PCB layout before implementation.

Q: What is the significance of the metallized polyester dielectric in the substitute part?

A: Metallized polyester provides equivalent dielectric performance to standard polyester while offering improved volumetric efficiency. Both materials are acceptable for general-purpose film capacitor applications with identical electrical characteristics at the specified capacitance and voltage ratings.

Q: Why is the operating temperature range extended in the substitute part?

A: The ECQ-E2103KF supports -40°C ~ 105°C operation, exceeding the original -40°C ~ 85°C specification. This extended range provides design flexibility for applications requiring higher temperature performance without compromising compatibility with the original design envelope.

Q: Are there any compliance differences between the two parts?

A: The ECQ-E2103KF is ROHS3 compliant and REACH unaffected, meeting current environmental regulations. Both parts carry identical ECCN (EAR99) and HTSUS (8532.25.0010) classifications.

Q: What should be verified before substitution?

A: Verify PCB layout compatibility with the different lead spacing (0.295" for substitute versus 0.374" for original). Confirm that the extended operating temperature range of the substitute part does not conflict with application requirements. Electrical specifications are fully compatible.