SPA820M04R Equivalent & Substitute Parts Reference

Part Overview

The SPA820M04R is an 82 µF, 4 V aluminum polymer surface mount capacitor manufactured by Cornell Dubilier Electronics (CDE) in the 2917 (7343 Metric) package. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity. The part is designed for general purpose applications requiring low ESR characteristics and stable performance across industrial temperature ranges.

Substiute Parts

SPA820M04R

Cornell Dubilier Electronics (CDE)In Stock: 1008SPA820M04R Datasheet

Current PartRFQ

EEF-SX0G820ER

Panasonic Electronic ComponentsIn Stock: 2112EEF-SX0G820ER Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPA820M04R is determined by strict equivalence across the following parameters:

Critical Matching Parameters:

• Capacitance value: 82 µF (exact match required)
• Voltage rating: 4 V (minimum acceptable)
• Package designation: 2917 (7343 Metric)
• Mounting type: Surface Mount
• Dielectric type: Aluminum Polymer
• Tolerance: ±20%
• ESR: 9 mOhm (maximum acceptable)

Allowable Variations:

• Lifetime rating: May exceed the original specification
• Operating temperature range: May exceed the original specification
• Ripple current capacity: May exceed the original specification
• Product status: Active status preferred over obsolete

The substitute part EEF-SX0G820ER meets all critical matching parameters while offering enhanced performance characteristics in lifetime, temperature range, and ripple current capacity.

Parameter Comparison

Engineering Selection Recommendations

The EEF-SX0G820ER from Panasonic Electronic Components is a direct functional equivalent to the obsolete SPA820M04R. Selection of this substitute is supported by the following engineering criteria:

Compliance & Certification: Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility in existing design frameworks.

Product Status: The EEF-SX0G820ER carries active product status, providing assured long-term availability and supply chain stability compared to the obsolete SPA820M04R.

Electrical Equivalence: Capacitance, voltage rating, ESR, and tolerance specifications are identical. The substitute part meets or exceeds all electrical performance requirements of the original design.

Physical Compatibility: Both parts utilize the 2917 (7343 Metric) package with identical land pattern dimensions (7.30 × 4.30 mm). The height difference of 0.20 mm (1.80 mm vs. 2.00 mm) remains within typical PCB assembly clearance tolerances for surface mount applications.

Performance Enhancement: The substitute provides superior performance margins: doubled lifetime rating (2000 Hrs vs. 1000 Hrs at 105°C), extended low-temperature operating range (-55°C vs. -40°C), and doubled ripple current capacity (6.3 A vs. 3 A at 100 kHz).

Frequently Asked Questions (FAQ)

Q: Can the EEF-SX0G820ER replace the SPA820M04R in existing designs without PCB modification?

A: Yes. Both parts share identical capacitance, voltage rating, ESR, tolerance, and land pattern dimensions (7.30 × 4.30 mm). The 0.20 mm height difference does not require PCB redesign for standard surface mount assembly processes.

Q: What is the significance of the different lifetime ratings?

A: The SPA820M04R specifies 1000 hours at 105°C, while the EEF-SX0G820ER specifies 2000 hours at the same temperature. This indicates the Panasonic part has extended operational life under thermal stress. For applications operating continuously at elevated temperatures, the substitute provides improved reliability margins.

Q: Are there any electrical performance differences between these parts?

A: No electrical performance differences exist in the specified parameters. Both parts have identical capacitance (82 µF), voltage rating (4 V), ESR (9 mOhm), and tolerance (±20%). The Panasonic substitute offers higher ripple current capacity (6.3 A vs. 3 A at 100 kHz), which represents an enhancement rather than a limitation.

Q: Does the extended operating temperature range of the substitute affect compatibility?

A: No. The EEF-SX0G820ER operates from -55°C to 105°C, compared to the original -40°C to 105°C range. This extended range is a superset of the original specification and does not create compatibility issues. Designs operating within the original temperature window remain fully compatible.

Q: What packaging format is the EEF-SX0G820ER supplied in?

A: The EEF-SX0G820ER is supplied in Cut Tape (CT) packaging, suitable for automated pick-and-place assembly processes. Verify packaging format compatibility with your procurement and assembly workflow.

Q: Are both parts RoHS compliant?

A: Yes. Both the SPA820M04R and EEF-SX0G820ER are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.