Equivalent & Substitute Parts for SPSX151M06R

Part Overview

The SPSX151M06R is a 150 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, indicating that CDE has discontinued production. The SPSX series capacitor is designed for general-purpose applications requiring stable capacitance and low equivalent series resistance in compact form factors.

Due to the obsolete status of the SPSX151M06R, identifying equivalent substitute parts from active manufacturers is necessary to maintain design continuity and ensure long-term component availability for production and field replacement scenarios.

Substiute Parts

SPSX151M06R

Cornell Dubilier Electronics (CDE)In Stock: 946SPSX151M06R Datasheet

Current PartRFQ

EEF-SX0J151ER

Panasonic Electronic ComponentsIn Stock: 30687EEF-SX0J151ER Datasheet

DirectRFQ

ECASD60J157M010K00

Murata ElectronicsIn Stock: 1263ECASD60J157M010K00 Datasheet

SimilarRFQ

EEF-CX0J151R

Panasonic Electronic ComponentsIn Stock: 773EEF-CX0J151R Datasheet

SimilarRFQ

EEF-CX0J151XR

Panasonic Electronic ComponentsIn Stock: 29514EEF-CX0J151XR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPSX151M06R is determined by strict adherence to the following critical parameters:

Critical Parameters (Must Match):

• Capacitance: 150 µF
• Voltage Rating: 6.3 V
• Tolerance: ±20%
• Package / Case: 2917 (7343 Metric)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant

Important Parameters (Should Match or Exceed):

• ESR: 9 mOhm or lower
• Lifetime @ 105°C: 1000 Hrs or greater
• Operating Temperature Range: -40°C to 105°C or wider
• Ripple Current @ 100 kHz: 3 A or greater

All substitute parts identified in this reference meet the critical parameters. Variations in ESR, lifetime rating, temperature range, and ripple current capability are documented to enable informed selection based on specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: EEF-SX0J151ER

The EEF-SX0J151ER from Panasonic Electronic Components is the optimal substitute for the SPSX151M06R. This part maintains identical ESR (9 mOhm) and package specifications while offering superior performance characteristics. The part is in active production status, ensuring long-term availability. The lifetime rating of 2000 Hrs @ 105°C doubles that of the original part, and the extended operating temperature range (-55°C to 105°C) provides greater thermal margin. Ripple current capability is increased to 6.3 A @ 100 kHz, exceeding the original specification. RoHS3 compliance and REACH unaffected status maintain regulatory alignment.

Secondary Recommendation: EEF-CX0J151XR

The EEF-CX0J151XR from Panasonic Electronic Components serves as an alternative substitute with active production status. This part exhibits a 12 mOhm ESR, which is 33% higher than the original specification but remains within acceptable performance parameters for general-purpose applications. The 2000 Hrs @ 105°C lifetime rating and extended temperature range (-55°C to 105°C) provide reliability advantages. Ripple current capability of 5.6 A @ 100 kHz exceeds the original requirement. This part is suitable for applications where slightly elevated ESR is acceptable.

Tertiary Recommendation: EEF-CX0J151R

The EEF-CX0J151R from Panasonic Electronic Components is available as a third-option substitute. The 15 mOhm ESR represents a 67% increase over the original specification and should be evaluated against specific circuit requirements. The part maintains active production status, 2000 Hrs @ 105°C lifetime, and extended temperature range. Ripple current capability of 5.1 A @ 100 kHz exceeds the original specification. This part is appropriate for applications with less stringent ESR requirements.

Alternative Consideration: ECASD60J157M010K00

The ECASD60J157M010K00 from Murata Electronics provides electrical equivalence to the original SPSX151M06R, with matching ESR (10 mOhm), lifetime (1000 Hrs @ 105°C), and temperature range (-40°C to 105°C). However, this part is classified as obsolete, limiting its suitability for long-term component sourcing strategies. Selection of this part should be restricted to applications requiring exact electrical matching where active-status alternatives are unsuitable.

Frequently Asked Questions (FAQ)

Q: Can the EEF-SX0J151ER be used as a direct replacement for the SPSX151M06R without circuit modification?

A: Yes. The EEF-SX0J151ER meets all critical substitution parameters: identical capacitance (150 µF), voltage rating (6.3 V), tolerance (±20%), package (2917 / 7343 Metric), and mounting type (Surface Mount). The identical 9 mOhm ESR ensures electrical performance equivalence. No circuit modification is required.

Q: What is the significance of the ESR difference between the SPSX151M06R (9 mOhm) and the EEF-CX0J151XR (12 mOhm)?

A: ESR affects ripple current handling, thermal performance, and frequency response. The 3 mOhm increase in the EEF-CX0J151XR represents a 33% rise in series resistance. For applications operating at or near the original ripple current specification (3 A @ 100 kHz), this difference may result in slightly elevated component temperature. The EEF-CX0J151XR's higher ripple current rating (5.6 A @ 100 kHz) provides compensation. Circuit thermal analysis is recommended for high-ripple-current applications.

Q: Why is the ECASD60J157M010K00 listed as a substitute if it is obsolete?

A: The ECASD60J157M010K00 is included for reference purposes as it provides exact electrical equivalence to the original SPSX151M06R. However, its obsolete status makes it unsuitable as a primary substitution strategy. It should be considered only when active-status alternatives cannot meet specific application requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed in this reference are RoHS3 compliant and REACH unaffected, maintaining regulatory alignment with the original SPSX151M06R.

Q: What is the impact of the extended temperature range in the Panasonic parts (-55°C to 105°C versus -40°C to 105°C)?

A: The extended lower temperature limit of -55°C provides additional thermal margin for applications operating in cold environments. This does not affect applications constrained to the original -40°C to 105°C range. The extended range represents a design advantage with no operational disadvantage.

Q: Can the substitute parts be used in existing PCB designs without layout modification?

A: Yes. All substitute parts maintain the identical 2917 (7343 Metric) package and surface mount land size (0.287" L x 0.169" W / 7.30mm x 4.30mm). PCB footprints and assembly processes require no modification. Height variations exist (ranging from 0.075" to 0.110" seated height), but these do not affect PCB layout compatibility for standard surface mount assembly.

Q: Which substitute part offers the best overall performance improvement?

A: The EEF-SX0J151ER provides the most comprehensive performance enhancement: identical ESR (9 mOhm) to the original part, doubled lifetime rating (2000 Hrs @ 105°C), extended temperature range (-55°C to 105°C), and doubled ripple current capability (6.3 A @ 100 kHz). Active production status ensures long-term availability.