EEF-SX0E151R Equivalent & Substitute Parts

Part Overview

The EEF-SX0E151R is a 150 µF, 2.5 V aluminum polymer surface mount capacitor manufactured by Panasonic Electronic Components in the 2917 (7343 Metric) package. This part is classified as "Not For New Designs" and has been superseded by newer alternatives within the SP-Cap SX series. Finding equivalent or substitute parts is necessary for ongoing production support, legacy system maintenance, and design flexibility when higher voltage ratings or improved specifications are required.

Substiute Parts

EEF-SX0E151R

Panasonic Electronic ComponentsIn Stock: 792EEF-SX0E151R Datasheet

Current PartRFQ

EEF-SL0E151R

Panasonic Electronic ComponentsIn Stock: 2224EEF-SL0E151R Datasheet

DirectRFQ

EEF-SX0G151ER

Panasonic Electronic ComponentsIn Stock: 11954EEF-SX0G151ER Datasheet

UpgradeRFQ

EEF-SX0J151ER

Panasonic Electronic ComponentsIn Stock: 30687EEF-SX0J151ER Datasheet

UpgradeRFQ

EEF-SX0E151ER

Panasonic Electronic ComponentsIn Stock: 1168EEF-SX0E151ER Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the EEF-SX0E151R is determined by the following criteria:

Parametric Equivalents maintain identical electrical specifications: 150 µF capacitance, 2.5 V voltage rating, ±20% tolerance, 9 mOhm ESR, and 2000 Hrs @ 105°C lifetime. These parts are pin-compatible and functionally interchangeable without circuit modification.

Direct Manufacturer Alternatives share the same capacitance, voltage, tolerance, and ESR but may differ in packaging format (Cut Tape vs. Tape & Reel) or lifetime rating. The EEF-SL0E151R is an older series variant with reduced lifetime (1000 Hrs @ 105°C) and narrower operating temperature range (-40°C ~ 105°C).

Upgrade Options maintain the same capacitance, tolerance, and ESR while offering higher voltage ratings (4 V or 6.3 V). These parts are electrically compatible in applications where the circuit voltage is lower than the capacitor's rated voltage, providing design margin and improved reliability.

All substitute parts share the identical 2917 (7343 Metric) package footprint and surface mount mounting type, ensuring mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement: EEF-SX0E151ER is the primary equivalent. It maintains all electrical and mechanical specifications of the EEF-SX0E151R while offering Active product status and higher inventory availability. This part is ROHS3 compliant and REACH unaffected, matching the compliance profile of the original part.

For Voltage Margin Applications: EEF-SX0G151ER (4 V) and EEF-SX0J151ER (6.3 V) are suitable when circuit design permits higher voltage ratings. Both parts are Active status with robust inventory levels and identical mechanical footprints. These upgrades provide enhanced reliability margin in applications subject to voltage transients or supply variations.

For Legacy System Support: EEF-SL0E151R is available but classified as Obsolete. This part is suitable only when packaging format (Cut Tape) is a specific requirement and operating temperature range (-40°C ~ 105°C) is acceptable. The reduced lifetime rating (1000 Hrs @ 105°C) should be evaluated against application duty cycle requirements.

All recommended substitutes are manufactured by Panasonic Electronic Components and maintain the same 2917 (7343 Metric) package footprint, ensuring drop-in compatibility without PCB redesign.

Frequently Asked Questions (FAQ)

Q: Can EEF-SX0E151ER directly replace EEF-SX0E151R? A: Yes. EEF-SX0E151ER is a parametric equivalent with identical capacitance (150 µF), voltage rating (2.5 V), tolerance (±20%), ESR (9 mOhm), and lifetime (2000 Hrs @ 105°C). Both parts use the 2917 (7343 Metric) package with identical footprint and height specifications.

Q: What is the difference between EEF-SX0E151R and EEF-SX0G151ER? A: The primary difference is voltage rating: EEF-SX0E151R is rated 2.5 V, while EEF-SX0G151ER is rated 4 V. All other electrical parameters (capacitance, tolerance, ESR, lifetime) are identical. EEF-SX0G151ER can be used in applications where circuit voltage does not exceed 2.5 V, providing additional design margin.

Q: Why is EEF-SX0E151R marked "Not For New Designs"? A: This designation indicates the part is obsolete for new product development. EEF-SX0E151ER (Active status) is the recommended replacement for new designs. However, EEF-SX0E151R remains available for legacy system support and ongoing production of existing products.

Q: Are there packaging differences between substitute parts? A: Yes. EEF-SX0E151R, EEF-SX0E151ER, EEF-SX0G151ER, and EEF-SX0J151ER are supplied in Tape & Reel (TR) format. EEF-SL0E151R is supplied in Cut Tape (CT) & Digi-Reel® format. All parts share the identical 2917 (7343 Metric) footprint and are mechanically interchangeable on the PCB.

Q: Can EEF-SL0E151R be used as a substitute? A: EEF-SL0E151R is mechanically and electrically compatible but is classified as Obsolete. It has a reduced lifetime rating (1000 Hrs @ 105°C vs. 2000 Hrs) and narrower operating temperature range (-40°C ~ 105°C vs. -55°C ~ 105°C). Use only when legacy system requirements mandate this specific part or when the reduced specifications are acceptable for the application.

Q: What does ESR (Equivalent Series Resistance) mean for capacitor selection? A: ESR is the internal resistance of the capacitor at high frequencies. All listed parts have 9 mOhm ESR, indicating identical high-frequency performance characteristics. Lower ESR generally results in better ripple current handling and reduced heat generation.

Q: Are all substitute parts RoHS3 compliant? A: EEF-SX0E151R, EEF-SX0E151ER, EEF-SX0G151ER, and EEF-SX0J151ER are ROHS3 compliant. Compliance status for EEF-SL0E151R is not specified in the provided data.