EEF-SD0D331R Equivalent & Substitute Parts

Part Overview

The EEF-SD0D331R is a 330 µF, 2 V aluminum polymer capacitor manufactured by Panasonic Electronic Components in the 2917 (7343 Metric) surface mount package. This component is classified as Obsolete, indicating it is no longer in active production. The part features a 7 mOhm equivalent series resistance (ESR) and supports a 1000-hour lifetime rating at 105°C with a ripple current capacity of 4.6 A at 100 kHz. Due to its obsolete status, equivalent and substitute parts from active product lines are necessary for new designs and ongoing production requirements.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	2 V
Tolerance	±20%
Package / Case	2917 (7343 Metric)
Mounting Type	Surface Mount
Type	Aluminum Polymer
ESR (Equivalent Series Resistance)	7 mOhm
Lifetime @ Temperature	1000 Hrs @ 105°C
Operating Temperature Range	-40°C ~ 105°C
Ripple Current @ 100 kHz	4.6 A
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution for the EEF-SD0D331R is determined by strict adherence to the following electrical and mechanical parameters:

Core Compatibility Requirements:

Capacitance: 330 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)
Type: Aluminum Polymer (exact match required)

Performance Parameters (Allowable Variation):

ESR: Substitute parts may have lower ESR values (improved performance)
Lifetime @ Temperature: Substitute parts may have equal or extended lifetime ratings
Operating Temperature Range: Substitute parts may have extended lower temperature limits
Ripple Current: Substitute parts may have equal or higher ripple current capacity

Panasonic Electronic Components EEF series substitutes are grouped by product status and performance tier. Active product line parts (SX, LX, GX, CX series) offer improved specifications compared to the obsolete SD series. The Murata ECAS series provides parametric equivalence with identical electrical characteristics to the original part.

Parameter Comparison

Part Number	Manufacturer	Series	Status	Capacitance	Voltage	ESR (mOhm)	Lifetime @ 105°C	Temp. Range	Ripple Current @ 100 kHz	Height (mm)	Packaging
EEF-SD0D331R	Panasonic	SP-Cap SD	Obsolete	330 µF	2 V	7	1000 Hrs	-40°C ~ 105°C	4.6 A	2.80	Bulk
EEF-SX0D331XE	Panasonic	SP-Cap SX	Active	330 µF	2 V	6	2000 Hrs	-55°C ~ 105°C	7.5 A	2.00	Tape & Reel
EEF-GX0D331R	Panasonic	SP-Cap GX	Active	330 µF	2 V	3	2000 Hrs	-55°C ~ 105°C	10.2 A	2.00	Tape & Reel
EEF-LX0D331R	Panasonic	SP-Cap LX	Active	330 µF	2 V	6	2000 Hrs	-55°C ~ 105°C	7.5 A	2.10	Tape & Reel
EEF-LX0D331R4	Panasonic	SP-Cap LX	Active	330 µF	2 V	4.5	2000 Hrs	-55°C ~ 105°C	8.5 A	2.10	Tape & Reel
EEF-SX0D331E4	Panasonic	SP-Cap SX	Active	330 µF	2 V	4.5	2000 Hrs	-55°C ~ 105°C	8.5 A	2.00	Tape & Reel
EEF-SX0D331ER	Panasonic	SP-Cap SX	Active	330 µF	2 V	9	2000 Hrs	-55°C ~ 105°C	6.3 A	2.00	Tape & Reel
EEF-CX0D331R	Panasonic	SP-Cap CX	Active	330 µF	2 V	15	2000 Hrs	-55°C ~ 105°C	5.1 A	1.90	Tape & Reel
ECASD60D337M007K00	Murata	ECAS	Obsolete	330 µF	2 V	7	1000 Hrs	-40°C ~ 105°C	4.6 A	2.80	Tape & Reel

Engineering Selection Recommendations

For Active Production and New Designs:

The Panasonic SP-Cap SX series (EEF-SX0D331XE, EEF-SX0D331E4, EEF-SX0D331ER) represents the primary recommended substitutes. These parts are in Active status, ROHS3 Compliant, and REACH Unaffected. The SX series offers extended lifetime ratings (2000 Hrs @ 105°C versus 1000 Hrs), expanded operating temperature range (-55°C to 105°C), and improved ripple current capacity. EEF-SX0D331E4 provides optimal performance with 4.5 mOhm ESR and 8.5 A ripple current while maintaining the lowest profile height (2.00 mm).

For Extended Temperature Performance:

The Panasonic SP-Cap LX series (EEF-LX0D331R, EEF-LX0D331R4) offers equivalent electrical performance to the SX series with slightly increased height (2.10 mm). EEF-LX0D331R4 delivers superior ESR characteristics (4.5 mOhm) and higher ripple current (8.5 A) in Active status.

For Low ESR Applications:

The Panasonic SP-Cap GX series (EEF-GX0D331R) provides the lowest ESR value (3 mOhm) among active substitutes, supporting the highest ripple current capacity (10.2 A @ 100 kHz). This part is suitable for applications requiring minimal impedance.

For Parametric Equivalence:

The Murata ECASD60D337M007K00 provides identical electrical specifications to the original EEF-SD0D331R (7 mOhm ESR, 1000 Hrs @ 105°C, 4.6 A ripple current). However, this part is classified as Obsolete and should not be selected for new designs.

Compliance Considerations:

All active Panasonic substitutes carry ROHS3 Compliant and REACH Unaffected certifications. The original EEF-SD0D331R and Murata ECASD60D337M007K00 lack explicit RoHS/REACH documentation in the provided specifications.

Frequently Asked Questions (FAQ)

Q: Can EEF-SX0D331ER be used as a direct replacement for EEF-SD0D331R?

A: Yes. Both parts share identical capacitance (330 µF), voltage rating (2 V), tolerance (±20%), package (2917 Metric), and mounting type (Surface Mount). The EEF-SX0D331ER is in Active status with extended lifetime (2000 Hrs @ 105°C) and expanded temperature range (-55°C to 105°C). The ESR difference (9 mOhm versus 7 mOhm) and ripple current difference (6.3 A versus 4.6 A) represent acceptable performance variations for general purpose applications.

Q: What is the difference between EEF-SX0D331E4 and EEF-LX0D331R4?

A: Both parts have identical electrical specifications (330 µF, 2 V, 4.5 mOhm ESR, 2000 Hrs @ 105°C, 8.5 A ripple current). The primary difference is physical height: EEF-SX0D331E4 measures 2.00 mm while EEF-LX0D331R4 measures 2.10 mm. Selection depends on available PCB clearance. Both are Active status parts suitable for new designs.

Q: Why is EEF-GX0D331R recommended for low ESR applications?

A: The EEF-GX0D331R features the lowest ESR value (3 mOhm) among all active substitutes, resulting in reduced impedance and improved ripple current handling (10.2 A @ 100 kHz). This characteristic is beneficial in applications requiring minimal voltage drop across the capacitor or high-frequency ripple current dissipation.

Q: Are there height restrictions when substituting the EEF-SD0D331R?

A: The original EEF-SD0D331R has a seated height of 2.80 mm. Most active substitutes have reduced heights (2.00 mm to 2.10 mm), which generally provides design flexibility. However, if the original design relied on the taller profile for mechanical support or thermal management, height reduction should be evaluated. The Murata ECASD60D337M007K00 maintains the original 2.80 mm height but is Obsolete.

Q: What packaging format should be specified for procurement?

A: The original EEF-SD0D331R was supplied in Bulk packaging. All active Panasonic substitutes are supplied in Tape & Reel (TR) format, which is standard for surface mount production. The Murata equivalent is also supplied in Tape & Reel format. Tape & Reel packaging is compatible with automated assembly equipment and is the industry standard for SMD components.

Q: Can EEF-CX0D331R be used as a substitute despite higher ESR?

A: EEF-CX0D331R meets all core compatibility requirements (330 µF, 2 V, ±20%, 2917 package, surface mount). However, the 15 mOhm ESR is significantly higher than the original 7 mOhm, resulting in lower ripple current capacity (5.1 A versus 4.6 A). This part is suitable only for applications where ESR and ripple current are not critical parameters. Lower ESR alternatives (SX, LX, GX series) are preferred.

Q: Is the Murata ECASD60D337M007K00 suitable for new designs?

A: No. The Murata ECASD60D337M007K00 is classified as Obsolete and should not be selected for new designs. While it provides parametric equivalence to the original EEF-SD0D331R, active Panasonic alternatives offer superior specifications, extended lifetime ratings, and compliance certifications suitable for current production requirements.

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