SPA151M02R Equivalent & Substitute Parts Reference

Part Overview

The SPA151M02R is a 150 µF, 2 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 discontinued production and limited availability in the supply chain. Equivalent and substitute parts are necessary to maintain design continuity, ensure procurement reliability, and support ongoing production requirements for applications utilizing this capacitor specification.

Key Parameters

Parameter	Value
Capacitance	150 µF
Voltage Rating	2 V
Tolerance	±20%
Type	Aluminum Polymer
ESR (Equivalent Series Resistance)	9 mOhm
Lifetime @ Temperature	1000 Hrs @ 105°C
Operating Temperature Range	-40°C to 105°C
Package / Case	2917 (7343 Metric)
Mounting Type	Surface Mount
Ripple Current @ 100 kHz	3 A
Physical Dimensions	0.287" L x 0.169" W (7.30mm x 4.30mm)
Height - Seated (Max)	0.071" (1.80mm)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution of the SPA151M02R is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

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

Allowable Parameter Variations:

Voltage Rating: Equal to or greater than 2 V (higher voltage ratings are acceptable for direct substitution)
Lifetime @ Temperature: Equal to or greater than 1000 Hrs @ 105°C (extended lifetime is acceptable)
Operating Temperature Range: Equal to or greater than -40°C to 105°C (extended range is acceptable)
Ripple Current @ 100 kHz: Equal to or greater than 3 A (higher ripple current capability is acceptable)
Height - Seated (Max): Up to 0.079" (2.00mm) (minor height variation within package tolerance is acceptable)

Substitute parts are grouped into direct equivalents and upgrades. Direct equivalents maintain identical electrical specifications. Upgrade parts provide enhanced performance characteristics while maintaining full compatibility with the original design requirements.

Parameter Comparison

Parameter	SPA151M02R (CDE)	ECASD40D157M009K00 (Murata)	EEF-SL0E151R (Panasonic)	EEF-SX0E151ER (Panasonic)	EEF-SX0G151ER (Panasonic)	EEF-SX0J151ER (Panasonic)
Capacitance	150 µF	150 µF	150 µF	150 µF	150 µF	150 µF
Voltage Rating	2 V	2 V	2.5 V	2.5 V	4 V	6.3 V
Tolerance	±20%	±20%	±20%	±20%	±20%	±20%
Type	Aluminum Polymer	Aluminum Polymer	Aluminum Polymer	Aluminum Polymer	Aluminum Polymer	Aluminum Polymer
ESR (mOhm)	9	9	9	9	9	9
Lifetime @ 105°C	1000 Hrs	1000 Hrs	1000 Hrs	2000 Hrs	2000 Hrs	2000 Hrs
Operating Temperature	-40°C to 105°C	-40°C to 105°C	-40°C to 105°C	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C
Package / Case	2917 (7343 Metric)	2917 (7343 Metric)	2917 (7343 Metric)	2917 (7343 Metric)	2917 (7343 Metric)	2917 (7343 Metric)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Ripple Current @ 100 kHz	3 A	3 A	Not specified	6.3 A	6.3 A	6.3 A
Height - Seated (Max)	0.071" (1.80mm)	0.075" (1.90mm)	0.071" (1.80mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Product Status	Obsolete	Obsolete	Obsolete	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent (Same Electrical Specifications):

ECASD40D157M009K00 (Murata Electronics) is a direct equivalent to the SPA151M02R. Both parts maintain identical electrical parameters: 150 µF capacitance, 2 V voltage rating, ±20% tolerance, 9 mOhm ESR, and 1000 Hrs @ 105°C lifetime. The ECASD40D157M009K00 is classified as obsolete, matching the original part status. Physical dimensions and package specifications are identical. This part is suitable for direct replacement in existing designs without modification.

Upgrade Substitutes (Enhanced Performance):

EEF-SL0E151R (Panasonic Electronic Components) provides a voltage rating upgrade to 2.5 V while maintaining all other critical electrical parameters. This part is classified as obsolete. The 0.5 V voltage increase provides additional design margin without affecting circuit compatibility.

EEF-SX0E151ER, EEF-SX0G151ER, and EEF-SX0J151ER (Panasonic Electronic Components, SP-Cap SX Series) are active production parts offering significant performance enhancements:

Extended lifetime: 2000 Hrs @ 105°C (double the original specification)
Extended operating temperature range: -55°C to 105°C (lower temperature limit)
Increased ripple current capability: 6.3 A @ 100 kHz (double the original specification)
Active product status ensures long-term availability

These upgrade parts are available in three voltage ratings: 2.5 V (EEF-SX0E151ER), 4 V (EEF-SX0G151ER), and 6.3 V (EEF-SX0J151ER). Selection depends on circuit voltage requirements. All three maintain identical capacitance, tolerance, ESR, and package specifications.

Compliance and Certification:

All substitute parts maintain ROHS3 compliance and are classified as EAR99 for export control purposes. Moisture Sensitivity Level 3 (168 Hours) is consistent across all parts. REACH status is unaffected for all listed substitutes.

Frequently Asked Questions (FAQ)

Q: Can EEF-SX0G151ER (4 V) be used in place of SPA151M02R (2 V)?

A: Yes. The EEF-SX0G151ER is a valid substitute. Higher voltage ratings are acceptable for direct substitution in circuits designed for lower voltages. The 4 V rating provides additional voltage margin and is fully compatible with 2 V circuit requirements. All other electrical parameters (capacitance, tolerance, ESR) are identical.

Q: What is the difference between the Panasonic SP-Cap SX series parts (EEF-SX0E151ER, EEF-SX0G151ER, EEF-SX0J151ER)?

A: These three parts are identical except for voltage rating. EEF-SX0E151ER is rated 2.5 V, EEF-SX0G151ER is rated 4 V, and EEF-SX0J151ER is rated 6.3 V. All three share the same capacitance (150 µF), tolerance (±20%), ESR (9 mOhm), lifetime (2000 Hrs @ 105°C), and operating temperature range (-55°C to 105°C). Selection should be based on the maximum voltage present in the circuit.

Q: Why are some substitute parts listed as "Active" while others are "Obsolete"?

A: Product status reflects current manufacturing availability. Obsolete parts (SPA151M02R, ECASD40D157M009K00, EEF-SL0E151R) are no longer in production. Active parts (EEF-SX0E151ER, EEF-SX0G151ER, EEF-SX0J151ER) are currently manufactured and offer long-term supply reliability. For new designs or long-term production requirements, active parts are preferred.

Q: Is the height difference between 0.071" (1.80mm) and 0.079" (2.00mm) significant?

A: The height difference of 0.008" (0.20mm) is within standard PCB assembly tolerances for surface mount components in the 2917 package. This variation does not affect electrical performance or mechanical compatibility. Verify clearance with your specific PCB layout if height-constrained applications are present.

Q: Can I substitute EEF-SX0E151ER (2.5 V, 2000 Hrs) for SPA151M02R (2 V, 1000 Hrs) in a design that requires 1000 Hrs lifetime?

A: Yes. The EEF-SX0E151ER exceeds the lifetime requirement with 2000 Hrs @ 105°C, which is double the original specification. This provides enhanced reliability and is fully compatible with designs specifying 1000 Hrs minimum lifetime.

Q: Are all substitute parts in the same 2917 (7343 Metric) package?

A: Yes. All listed substitute parts use the identical 2917 (7343 Metric) surface mount package. PCB land patterns and assembly processes remain unchanged. Physical dimensions (0.287" L x 0.169" W / 7.30mm x 4.30mm) are identical across all parts.

Q: What is the significance of the 9 mOhm ESR specification?

A: ESR (Equivalent Series Resistance) of 9 mOhm is a critical electrical parameter for aluminum polymer capacitors. All substitute parts maintain this identical specification, ensuring equivalent performance in ripple current applications, thermal characteristics, and frequency response. This parameter is non-negotiable for direct substitution.

Q: Which substitute part offers the best long-term availability?

A: EEF-SX0J151ER (Panasonic, 6.3 V rating) is the recommended choice for long-term availability. This part is active production, has the highest inventory level (30,612 Pcs), and offers the highest voltage rating, providing maximum design margin and supply chain reliability.

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