SPA271M02R

Part Overview

The SPA271M02R is a 270 µF, 2 V aluminum-polymer surface mount capacitor manufactured by Cornell Dubilier Electronics (CDE) in the 2917 (7343 Metric) package. This component is classified as obsolete and requires alternative sourcing for new applications. Substitute parts from active manufacturers are available with equivalent or improved electrical characteristics while maintaining mechanical compatibility.

Key Parameters

Parameter	Value
Capacitance	270 µF
Voltage Rating	2 V
Tolerance	±20%
Type	Aluminum - Polymer
Package / Case	2917 (7343 Metric)
ESR (Equivalent Series Resistance)	7 mOhm
Operating Temperature Range	-40°C to 105°C
Lifetime @ Temperature	1000 Hrs @ 105°C
Ripple Current @ 100 kHz	3.5 A
Mounting Type	Surface Mount
Physical Dimensions	7.30 mm L x 4.30 mm W x 2.80 mm H (Max)
RoHS Status	ROHS3 Compliant
MSL Rating	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution criteria for SPA271M02R are determined by strict electrical and mechanical compatibility requirements:

Core Equivalence Parameters:

Capacitance: 270 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: 2 V minimum (higher ratings acceptable within mechanical constraints)
Package: 2917 (7343 Metric) (exact match required for PCB compatibility)
ESR: 7 mOhm nominal (operational range acceptable with published specifications)
Operating Temperature: -40°C to 105°C minimum range
Mounting Type: Surface Mount

All qualified substitute parts maintain identical physical footprint dimensions, capacitance, tolerance, and mounting characteristics. Substitute parts are selected from Panasonic Electronic Components' active product lines, ensuring long-term availability and production continuity.

Parameter Comparison

Parameter	SPA271M02R (Main)	EEF-SX0E271E7	EEF-CX0D271XR	EEF-SX0D271E4	EEF-SX0D271ER	EEF-SX0D271R	EEF-SX0D271XE
Manufacturer	Cornell Dubilier	Panasonic	Panasonic	Panasonic	Panasonic	Panasonic	Panasonic
Capacitance	270 µF	270 µF	270 µF	270 µF	270 µF	270 µF	270 µF
Tolerance	±20%	±20%	±20%	±20%	±20%	±20%	±20%
Voltage Rating	2 V	2.5 V	2 V	2 V	2 V	2 V	2 V
ESR (mOhm)	7	7	12	4.5	9	9	6
Lifetime @ 105°C	1000 Hrs	2000 Hrs	2000 Hrs	2000 Hrs	2000 Hrs	2000 Hrs	2000 Hrs
Operating Temperature	-40°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Ripple Current @ 100 kHz	3.5 A	7 A	5.6 A	8.5 A	6.3 A	Not Listed	7.5 A
Package / Case	2917 (7343 Metric)	2917 (7343 Metric)	2917 (7343 Metric)	2917 (7343 Metric)	2917 (7343 Metric)	2917 (7343 Metric)	2917 (7343 Metric)
Height (Max)	2.80 mm	2.00 mm	1.90 mm	2.00 mm	2.00 mm	2.00 mm	2.00 mm
Physical Dimensions	7.30 mm L x 4.30 mm W	7.30 mm L x 4.30 mm W	7.30 mm L x 4.30 mm W	7.30 mm L x 4.30 mm W	7.30 mm L x 4.30 mm W	7.30 mm L x 4.30 mm W	7.30 mm L x 4.30 mm W
Product Status	Obsolete	Active	Active	Active	Active	Not For New Designs	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: EEF-SX0E271E7

This Panasonic substitute offers the highest voltage rating (2.5 V) within the equivalent mechanical envelope, providing additional design margin. Product status is active with full design-phase support. ROHS3 compliance is confirmed. Lifetime rating of 2000 hours at 105°C exceeds the original component specification. Ripple current capability of 7 A at 100 kHz provides performance headroom.

Secondary Recommendations: EEF-SX0D271E4, EEF-SX0D271XE, EEF-SX0D271ER

These Panasonic SP-Cap SX series parts maintain identical voltage and capacitance ratings with active product status. All provide doubled thermal lifetime (2000 hours at 105°C) and extended operating temperature range (-55°C to 105°C). Physical height is reduced to 2.00 mm (compared to original 2.80 mm), improving PCB real estate utilization. ESR values range from 4.5 mOhm to 9 mOhm with corresponding ripple current adjustments.

Alternative: EEF-CX0D271XR

Panasonic SP-Cap CX series substitute with exact voltage and capacitance matching. Product status is active. Height reduced to 1.90 mm. ESR of 12 mOhm remains within acceptable operational parameters for general-purpose applications. Ripple current of 5.6 A at 100 kHz meets or exceeds legacy component performance.

Not Recommended for New Designs: EEF-SX0D271R

While electrically equivalent, this part carries "Not For New Designs" status from Panasonic, indicating potential future discontinuation. Use only for legacy system maintenance or replacement scenarios.

Frequently Asked Questions (FAQ)

Q: What determines whether a substitute part is compatible with SPA271M02R?

A: Compatibility requires exact matching of capacitance (270 µF), tolerance (±20%), package (2917 / 7343 Metric), and mounting type (surface mount). Voltage rating may exceed the original 2 V specification. All substitute parts are selected from Panasonic's active product lines and meet ROHS3 compliance requirements.

Q: Can I use a substitute part with higher voltage rating?

A: Yes. EEF-SX0E271E7 is rated at 2.5 V and is electrically and mechanically compatible with the 2 V application. Higher voltage ratings provide design margin without compromising function or physical footprint.

Q: How do ESR differences affect component selection?

A: ESR values for qualified substitutes range from 4.5 mOhm to 12 mOhm compared to the original 7 mOhm. All values remain within acceptable operational parameters for general-purpose aluminum-polymer capacitor applications in the 2917 package. Lower ESR values (4.5 mOhm to 7 mOhm) reduce heat generation; higher values (9 mOhm to 12 mOhm) remain functionally equivalent for standard applications.

Q: Are all substitute parts identical in physical dimensions?

A: Substitute parts maintain identical footprint dimensions (7.30 mm L x 4.30 mm W) and surface mount land pattern. Maximum height varies from 1.90 mm to 2.00 mm compared to the original 2.80 mm. This reduced height improves PCB clearance and does not affect compatibility.

Q: Why is EEF-SX0D271R not recommended?

A: Panasonic classifies EEF-SX0D271R as "Not For New Designs," indicating potential future obsolescence. Electrical and mechanical compatibility exists; however, active product status should be prioritized for new applications to ensure long-term availability.

Q: What compliance certifications apply to substitute parts?

A: All substitute parts are ROHS3 compliant and REACH unaffected, matching the regulatory status of the original SPA271M02R component.

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