EEF-SX0D271R Equivalent & Substitute Parts

Part Overview

The EEF-SX0D271R is a 270 µF, 2 V aluminum polymer capacitor in 2917 (7343 Metric) surface mount package manufactured by Panasonic Electronic Components. This part is classified as Not For New Designs, indicating it has been superseded in the product line. Identifying equivalent and substitute parts is necessary for ongoing support of existing designs, inventory management, and sourcing alternatives with improved specifications or active product status.

Key Parameters

Parameter	Value
Capacitance	270 µF
Voltage Rating	2 V
Tolerance	±20%
Type	Aluminum Polymer
Package / Case	2917 (7343 Metric)
Mounting Type	Surface Mount
Operating Temperature Range	-55°C ~ 105°C
Lifetime @ Temperature	2000 Hrs @ 105°C
ESR (Equivalent Series Resistance)	9 mOhm

Substitute Part Grouping Explanation

Substitution eligibility for the EEF-SX0D271R is determined by the following mandatory parameters:

Capacitance: 270 µF (exact match required)
Voltage Rating: 2 V (exact match required)
Tolerance: ±20% (exact match required)
Package / Case: 2917 (7343 Metric) (exact match required)
Mounting Type: Surface Mount (exact match required)
Operating Temperature Range: -55°C ~ 105°C (exact match required)
Lifetime @ Temperature: 2000 Hrs @ 105°C (exact match required)

All identified substitute parts meet these core electrical and mechanical parameters. Variations in ESR and ripple current ratings are secondary performance characteristics that do not disqualify substitution but may affect circuit performance in high-frequency or high-ripple-current applications.

Parameter Comparison

Part Number	Series	Product Status	Capacitance	Voltage	ESR (mOhm)	Ripple Current @ 100 kHz	Height (Max)	Inventory
EEF-SX0D271R	SP-Cap SX	Not For New Designs	270 µF	2 V	9	—	0.079" (2.00 mm)	10,711 Pcs
EEF-SX0D271ER	SP-Cap SX	Active	270 µF	2 V	9	6.3 A	0.079" (2.00 mm)	11,559 Pcs
EEF-SX0D271E4	SP-Cap SX	Active	270 µF	2 V	4.5	8.5 A	0.079" (2.00 mm)	12,764 Pcs
EEF-SX0D271XE	SP-Cap SX	Active	270 µF	2 V	6	7.5 A	0.079" (2.00 mm)	1,035 Pcs
EEF-CX0D271XR	SP-Cap CX	Active	270 µF	2 V	12	5.6 A	0.075" (1.90 mm)	920 Pcs

Engineering Selection Recommendations

All substitute parts listed are RoHS3 Compliant and REACH Unaffected, meeting current regulatory requirements.

For direct replacement of EEF-SX0D271R in existing designs, EEF-SX0D271ER is the primary equivalent, offering identical electrical specifications and Active product status within the same SP-Cap SX series.

EEF-SX0D271E4 and EEF-SX0D271XE are functionally equivalent alternatives with improved ESR performance (4.5 mOhm and 6 mOhm respectively) and higher ripple current ratings. Both maintain Active product status and identical package dimensions.

EEF-CX0D271XR is a cross-series substitute from the SP-Cap CX line with Active status. It features a reduced seated height of 0.075" (1.90 mm) compared to 0.079" (2.00 mm) for SX-series parts. ESR is higher at 12 mOhm. This part is suitable only if the reduced height is compatible with PCB layout constraints.

Frequently Asked Questions (FAQ)

Q: Can EEF-SX0D271E4 replace EEF-SX0D271R directly?

A: Yes. EEF-SX0D271E4 meets all mandatory electrical and mechanical parameters. The lower ESR (4.5 mOhm vs. 9 mOhm) and higher ripple current rating (8.5 A vs. unspecified) represent performance improvements with no negative impact on circuit compatibility.

Q: What is the difference between SP-Cap SX and SP-Cap CX series?

A: Both are Panasonic aluminum polymer capacitor series with identical electrical ratings for this part number. The primary difference is the seated height: SX series is 0.079" (2.00 mm), while CX series is 0.075" (1.90 mm). Selection depends on PCB layout requirements.

Q: Is EEF-CX0D271XR suitable for high-ripple-current applications?

A: EEF-CX0D271XR has a ripple current rating of 5.6 A @ 100 kHz, which is lower than EEF-SX0D271E4 (8.5 A) and EEF-SX0D271XE (7.5 A). For applications requiring maximum ripple current handling, EEF-SX0D271E4 is the preferred choice.

Q: Why is EEF-SX0D271R marked as Not For New Designs?

A: This designation indicates the part has been superseded. EEF-SX0D271ER and other Active alternatives should be used for new designs to ensure long-term availability and support.

Q: Are all substitute parts available in the same packaging format?

A: Yes. All parts are supplied in Tape & Reel (TR) packaging and are compatible with standard surface mount assembly processes. Package / Case designation 2917 (7343 Metric) is consistent across all parts except for the seated height variation in EEF-CX0D271XR.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message