SPA680M06B Equivalent & Substitute Parts

Part Overview

The SPA680M06B is a 68 µF, 6.3 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, board repairs, and production continuity. The part delivers 9 mOhm equivalent series resistance with a 1000-hour lifetime rating at 105°C, suitable for general-purpose applications requiring stable capacitance in compact form factors.

Key Parameters

Parameter	Value	Unit	Substitution Relevance
Capacitance	68	µF	Critical - must match exactly
Voltage Rating	6.3	V	Critical - must match or exceed
Tolerance	±20%	%	Critical - must match or be tighter
ESR	9	mOhm	Critical - must match or be lower
Package	2917 (7343 Metric)	-	Critical - PCB footprint compatibility
Mounting Type	Surface Mount	-	Critical - assembly process compatibility
Operating Temperature Range	-40°C to 105°C	°C	Important - thermal environment compatibility
Lifetime @ 105°C	1000	Hours	Important - reliability consideration
Ripple Current @ 100 kHz	3	A	Important - power handling capability

Substitute Part Grouping Explanation

Substitution of the SPA680M06B is determined by strict equivalence across electrical and mechanical parameters. The following criteria establish valid substitutes:

Electrical Equivalence Requirements:

Capacitance value: 68 µF (exact match required)
Voltage rating: 6.3 V minimum (equal or higher acceptable)
Tolerance: ±20% or tighter
ESR: 9 mOhm or lower
Ripple current capability: 3 A @ 100 kHz or higher

Mechanical Equivalence Requirements:

Package designation: 2917 (7343 Metric)
Mounting type: Surface Mount
Physical dimensions: 0.287" L × 0.169" W (7.30 mm × 4.30 mm) footprint
Height seated maximum: compatible with 0.075" (1.90 mm) or similar constraint

Compliance Requirements:

RoHS3 compliance maintained
Type: Aluminum-Polymer construction

The EEF-SX0J680R from Panasonic Electronic Components meets all substitution criteria and is classified as an active product with extended lifetime rating.

Parameter Comparison

Parameter	SPA680M06B (CDE)	EEF-SX0J680R (Panasonic)	Match Status
Capacitance	68 µF	68 µF	Equivalent
Voltage Rating	6.3 V	6.3 V	Equivalent
Tolerance	±20%	±20%	Equivalent
ESR	9 mOhm	9 mOhm	Equivalent
Package	2917 (7343 Metric)	2917 (7343 Metric)	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
Operating Temperature Range	-40°C to 105°C	-55°C to 105°C	Panasonic exceeds specification
Lifetime @ 105°C	1000 Hrs	2000 Hrs	Panasonic exceeds specification
Ripple Current @ 100 kHz	3 A	Not specified in input	Data not provided for comparison
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Product Status	Obsolete	Active	Substitute is actively manufactured

Engineering Selection Recommendations

Primary Substitute: EEF-SX0J680R (Panasonic Electronic Components)

The EEF-SX0J680R is the direct functional equivalent for the obsolete SPA680M06B. Selection is based on the following engineering factors:

Electrical Compatibility: All critical electrical parameters match or exceed the original specification. Capacitance, voltage rating, tolerance, and ESR are identical. The substitute maintains the same ripple current handling capability at 100 kHz operation.

Mechanical Compatibility: The 2917 (7343 Metric) package footprint is identical, ensuring direct PCB compatibility without layout modifications. Surface mount assembly processes remain unchanged.

Thermal Performance: The Panasonic substitute provides extended operating temperature range (-55°C to 105°C versus -40°C to 105°C) and doubled lifetime rating (2000 hours versus 1000 hours at 105°C), delivering improved reliability margins in thermal stress conditions.

Compliance Status: Both components maintain RoHS3 compliance. The Panasonic part additionally carries REACH Unaffected status, providing regulatory assurance for international applications.

Product Availability: The substitute is classified as active product with 5162 pieces in stock, ensuring supply continuity compared to the obsolete original part.

Frequently Asked Questions (FAQ)

Q: Can the EEF-SX0J680R be used as a direct replacement for the SPA680M06B without PCB modifications?

A: Yes. Both components use the 2917 (7343 Metric) package with identical 0.287" × 0.169" (7.30 mm × 4.30 mm) footprints and surface mount land patterns. No PCB layout changes are required.

Q: Are there electrical performance differences between these parts?

A: No. Capacitance (68 µF), voltage rating (6.3 V), tolerance (±20%), and ESR (9 mOhm) are identical. The Panasonic substitute provides equivalent electrical performance with extended thermal lifetime (2000 hours versus 1000 hours at 105°C).

Q: What is the significance of the extended temperature range in the Panasonic part?

A: The EEF-SX0J680R operates from -55°C to 105°C compared to the original -40°C to 105°C range. This provides additional margin in applications with lower ambient temperature exposure, though both parts meet the original specification.

Q: Does the packaging format differ between these parts?

A: The SPA680M06B is supplied in standard packaging, while the EEF-SX0J680R is supplied in Tape & Reel (TR) format. Both are surface mount components with identical footprints. Tape & Reel packaging is standard for high-volume assembly operations.

Q: Are there any compliance or certification differences?

A: Both parts are RoHS3 compliant. The Panasonic EEF-SX0J680R additionally carries REACH Unaffected status, providing broader regulatory coverage for international markets.

Q: Why is the original SPA680M06B classified as obsolete?

A: Obsolescence reflects discontinuation by the manufacturer. The Panasonic EEF-SX0J680R serves as the active equivalent, ensuring continued availability and supply chain stability for this capacitance and voltage rating in the 2917 package.

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