Equivalent & Substitute Parts for SPA151M0EB

Part Overview

The SPA151M0EB is a 150 µF, 2.5 V aluminum polymer capacitor manufactured by Cornell Dubilier Electronics (CDE) in a 2917 (7343 Metric) surface mount package. This component is designated as Obsolete and requires identification of equivalent or substitute parts for new designs or replacement applications. The SPA series has been superseded by more advanced polymer capacitor lines offering extended operational lifetime and improved performance characteristics while maintaining dimensional and electrical compatibility.

Key Parameters

Parameter	SPA151M0EB
Capacitance	150 µF
Voltage - Rated	2.5 V
Type	Polymer (Aluminum)
Tolerance	±20%
ESR (Equivalent Series Resistance)	9 mOhm
Lifetime @ Temp.	1000 Hrs @ 105°C
Operating Temperature Range	-40°C ~ 105°C
Package / Case	2917 (7343 Metric)
Mounting Type	Surface Mount
Size / Dimension	0.287" L x 0.169" W (7.30mm x 4.30mm)
Height - Seated (Max)	0.075" (1.90mm)
Ripple Current @ High Frequency	3 A @ 100 kHz
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following electrical and mechanical parameters:

Primary Criteria (Must Match):

Capacitance: 150 µF
Package / Case: 2917 (7343 Metric)
Mounting Type: Surface Mount
ESR: 9 mOhm
Tolerance: ±20%

Secondary Criteria (Compatibility Dependent):

Voltage - Rated: The SPA151M0EB operates at 2.5 V. Direct equivalents maintain 2.5 V rating. Higher voltage-rated parts (4 V and 6.3 V) are compatible substitutes where circuit voltage requirements permit, as they maintain the same physical footprint and electrical specifications while providing enhanced voltage headroom.
Lifetime @ Temp.: The SPA151M0EB specifies 1000 Hrs @ 105°C. Substitute parts with extended lifetime (2000 Hrs @ 105°C) provide improved reliability without affecting compatibility.
Operating Temperature Range: The SPA151M0EB operates from -40°C ~ 105°C. Substitutes with extended ranges (-55°C ~ 105°C) provide additional thermal margin.
Ripple Current: Enhanced ripple current ratings in substitute parts indicate improved thermal performance.

Substitute Categories:

Direct Equivalent (Same Electrical Characteristics): EEF-SL0E151R maintains identical ratings (2.5 V, 1000 Hrs @ 105°C) with minor height variation (0.071" vs 0.075").
Enhanced Performance Equivalents (Higher Lifetime): EEF-SX0E151ER and EEF-SX0G151ER feature 2000 Hrs @ 105°C lifetime with broader temperature range and extended availability (Active status).
Upgrade Option (Higher Voltage Rating): EEF-SX0J151ER provides 6.3 V rating with 2000 Hrs @ 105°C lifetime, suitable for circuits operating below 2.5 V nominal voltage.

Parameter Comparison

Parameter	SPA151M0EB	EEF-SL0E151R	EEF-SX0E151ER	EEF-SX0G151ER	EEF-SX0J151ER
Manufacturer	Cornell Dubilier Electronics (CDE)	Panasonic Electronic Components	Panasonic Electronic Components	Panasonic Electronic Components	Panasonic Electronic Components
Capacitance	150 µF	150 µF	150 µF	150 µF	150 µF
Voltage - Rated	2.5 V	2.5 V	2.5 V	4 V	6.3 V
Type	Polymer	Polymer	Polymer	Polymer	Polymer
Tolerance	±20%	±20%	±20%	±20%	±20%
ESR (Equivalent Series Resistance)	9 mOhm	9 mOhm	9 mOhm	9 mOhm	9 mOhm
Lifetime @ Temp.	1000 Hrs @ 105°C	1000 Hrs @ 105°C	2000 Hrs @ 105°C	2000 Hrs @ 105°C	2000 Hrs @ 105°C
Operating Temperature Range	-40°C ~ 105°C	-40°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Package / Case	2917 (7343 Metric)	2917 (7343 Metric)	2917 (7343 Metric)	2917 (7343 Metric)	2917 (7343 Metric)
Height - Seated (Max)	0.075" (1.90mm)	0.071" (1.80mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Ripple Current @ High Frequency	3 A @ 100 kHz	—	6.3 A @ 100 kHz	6.3 A @ 100 kHz	6.3 A @ 100 kHz
Product Status	Obsolete	Obsolete	Active	Active	Active
RoHS Status	ROHS3 Compliant	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement with Minimal Design Changes: EEF-SL0E151R serves as the direct electrical equivalent, maintaining the same 2.5 V and 1000 Hrs @ 105°C specifications. However, this part also carries Obsolete status, limiting its long-term availability. The reduced height (0.071" vs 0.075") permits direct footprint substitution without PCB redesign.

For New Design Implementation or Long-Term Availability: EEF-SX0E151ER is the recommended substitute for new designs. It maintains identical electrical parameters to the SPA151M0EB (2.5 V rating, 150 µF, 9 mOhm ESR) while offering Active product status and doubled operational lifetime (2000 Hrs @ 105°C). The extended temperature range (-55°C ~ 105°C) and increased ripple current capacity (6.3 A @ 100 kHz) provide enhanced performance margins. RoHS3 compliance is maintained.

For Applications Requiring Voltage Margin: EEF-SX0G151ER (4 V rating) and EEF-SX0J151ER (6.3 V rating) are compatible substitutes for circuits operating below their respective voltage thresholds. Both maintain Active status, 150 µF capacitance, 9 mOhm ESR, 2000 Hrs @ 105°C lifetime, and RoHS3 compliance. These selections are appropriate when circuit design permits acceptance of higher voltage-rated components within the physical footprint.

Frequently Asked Questions (FAQ)

Q: Can EEF-SX0G151ER or EEF-SX0J151ER be used in applications rated for 2.5 V? A: Yes. Higher voltage-rated capacitors (4 V and 6.3 V) are electrically compatible with circuits operating below their rated voltage. The higher voltage rating indicates the component withstands higher potential difference without degradation. Selection between voltage options depends on design margin requirements and component availability.

Q: What is the impact of the height variation between SPA151M0EB (0.075" / 1.90mm) and EEF-SX series (0.079" / 2.00mm)? A: The height difference of 0.004" (0.10mm) is minimal. For most surface mount applications with standard PCB clearances, this variation does not require PCB redesign. Verify available height margin in the target assembly before substitution, particularly in space-constrained designs or applications with component stacking.

Q: Why are the Panasonic EEF-SX parts considered upgrades despite identical basic specifications? A: The EEF-SX parts offer extended lifetime (2000 Hrs @ 105°C versus 1000 Hrs), broader operating temperature range (-55°C to 105°C versus -40°C to 105°C), and Active product status with superior long-term availability. Identical core specifications (150 µF, ±20% tolerance, 9 mOhm ESR, 2917 package) ensure functional compatibility while performance improvements reduce thermal stress and extend service life.

Q: Is EEF-SL0E151R a suitable long-term replacement option? A: EEF-SL0E151R provides direct electrical equivalence to SPA151M0EB with identical specifications and only marginal height reduction. However, both parts carry Obsolete status, limiting long-term procurement reliability. For applications requiring extended part availability and future inventory assurance, selection of an Active product (EEF-SX series) is preferred.

Q: What packaging considerations exist for these substitute parts? A: All listed substitutes maintain 2917 (7343 Metric) surface mount packaging and identical footprints. The Panasonic EEF-SX parts are supplied in Tape & Reel (TR) format for automated assembly. EEF-SL0E151R is available in Cut Tape (CT) and Digi-Reel formats. Verify packaging compatibility with assembly equipment requirements and minimum order quantities.

Q: Can these parts be used interchangeably on existing PCBs designed for SPA151M0EB? A: Yes. All substitute parts maintain identical land pattern dimensions (0.287" L x 0.169" W / 7.30mm x 4.30mm) and surface mount mounting requirements. Direct footprint compatibility exists. The minor height variations (0.071" to 0.079" range) do not affect PCB layout or clearance for standard applications.

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