ESRE331M02R Equivalent & Substitute Parts Reference

Part Overview

The ESRE331M02R is a 330 µF, 2 V aluminum polymer surface mount capacitor manufactured by Cornell Dubilier Electronics (CDE). This component is designed for bypass and decoupling applications in compact form factors. The part is classified as obsolete, making identification of active equivalent components essential for ongoing design support, procurement continuity, and system maintenance. Substitute parts must maintain electrical performance and physical compatibility while offering active product status and reliable supply chain availability.

Substiute Parts

ESRE331M02R

Cornell Dubilier Electronics (CDE)In Stock: 767ESRE331M02R Datasheet

Current PartRFQ

A700D337M002ATE012

KEMETIn Stock: 2316A700D337M002ATE012 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ESRE331M02R is determined by strict alignment with the following electrical and mechanical parameters:

Critical Matching Parameters:

• Capacitance value: 330 µF (exact match required)
• Voltage rating: 2 V (exact match required)
• Tolerance: ±20% (exact match required)
• ESR: 12 mOhm (exact match required)
• Package: 2917 (7343 Metric) (exact match required)
• Mounting type: Surface Mount (exact match required)
• Dielectric type: Aluminum Polymer (exact match required)

Important Compatibility Parameters:

• Operating temperature range must encompass or exceed the original specification (-55°C ~ 105°C minimum)
• RoHS3 compliance required for regulatory alignment
• MSL rating of 3 or lower acceptable

The substitute part A700D337M002ATE012 (KEMET AO-Cap A700 series) satisfies all critical matching parameters and maintains regulatory compliance. The substitute offers an extended upper operating temperature limit (-55°C ~ 125°C) and improved ripple current handling (4.6 A @ 100 kHz versus 3.3 A @ 100 kHz), with reduced seated height (3.10 mm versus 4.10 mm), providing enhanced thermal performance and design flexibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: A700D337M002ATE012 (KEMET)

The KEMET A700D337M002ATE012 is the qualified substitute for the obsolete ESRE331M02R. Selection is based on the following engineering criteria:

1. Electrical Equivalence: All critical electrical parameters (capacitance, voltage, tolerance, ESR) match exactly, ensuring functional interchangeability in bypass and decoupling applications.

2. Physical Compatibility: Identical package footprint (2917 / 7343 Metric) and surface mount land pattern enable direct PCB layout compatibility without redesign.

3. Regulatory Compliance: Both components maintain ROHS3 compliance and identical MSL ratings, satisfying environmental and handling requirements.

4. Active Product Status: The KEMET substitute is classified as active, providing long-term supply chain availability and manufacturing support, addressing the obsolescence of the original CDE part.

5. Performance Enhancement: The substitute offers extended operating temperature range (-55°C ~ 125°C) and higher ripple current capability (4.6 A @ 100 kHz), providing improved thermal margin and design robustness.

6. Form Factor Advantage: Reduced seated height (3.10 mm versus 4.10 mm) provides additional design flexibility for space-constrained applications.

Frequently Asked Questions (FAQ)

Q: Can the A700D337M002ATE012 be used as a direct replacement for the ESRE331M02R?

A: Yes. The KEMET A700D337M002ATE012 is electrically and mechanically equivalent. All critical parameters—capacitance (330 µF), voltage rating (2 V), tolerance (±20%), ESR (12 mOhm), and package (2917 / 7343 Metric)—match exactly. No circuit modifications or PCB redesign are required.

Q: What are the key differences between these two parts?

A: The primary differences are: (1) Product status—the KEMET part is active while the CDE part is obsolete; (2) Operating temperature range—KEMET extends to 125°C versus 105°C for CDE; (3) Ripple current—KEMET supports 4.6 A @ 100 kHz versus 3.3 A for CDE; (4) Seated height—KEMET is 3.10 mm versus 4.10 mm for CDE. These differences represent performance enhancements with no negative impact on compatibility.

Q: Are there any packaging differences?

A: Both parts use identical 2917 (7343 Metric) surface mount packages with matching footprints and land patterns. The KEMET substitute is supplied in Tape & Reel (TR) packaging, which is standard for production environments. The reduced seated height of the KEMET part (3.10 mm) provides additional clearance in compact assemblies.

Q: Do both parts have the same moisture sensitivity requirements?

A: Yes. Both the ESRE331M02R and A700D337M002ATE012 are rated MSL 3 (168 Hours), requiring identical handling, storage, and reflow procedures.

Q: Is the extended temperature range of the KEMET part a concern for compatibility?

A: No. The extended operating temperature range (-55°C ~ 125°C) of the KEMET substitute is a performance advantage. It encompasses the original specification (-55°C ~ 105°C) and provides additional thermal margin for demanding applications.

Q: Can the higher ripple current rating of the KEMET part affect circuit behavior?

A: No. Higher ripple current capability (4.6 A @ 100 kHz versus 3.3 A) indicates improved performance characteristics. This does not alter circuit operation and provides additional design margin for transient current conditions.

Q: What is the supply status of the substitute part?

A: The KEMET A700D337M002ATE012 is classified as active with 2,246 units in current inventory, ensuring reliable procurement and long-term availability compared to the obsolete ESRE331M02R.