EEF-CD0E151R Equivalent & Substitute Parts

Part Overview

The EEF-CD0E151R is a 150 µF, 2.5 V aluminum polymer capacitor in 2917 (7343 Metric) surface mount package manufactured by Panasonic Electronic Components. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The SP-Cap CD series offers general-purpose capacitor functionality with an 18 mOhm ESR and 1000-hour lifetime rating at 105°C.

Key Parameters

Parameter	Value
Capacitance	150 µF
Voltage Rating	2.5 V
Tolerance	±20%
ESR (Equivalent Series Resistance)	18 mOhm
Lifetime @ Temperature	1000 Hrs @ 105°C
Operating Temperature Range	-40°C ~ 105°C
Package / Case	2917 (7343 Metric)
Mounting Type	Surface Mount
Physical Dimensions	0.287" L x 0.169" W (7.30mm x 4.30mm)
Height - Seated (Max)	0.075" (1.90mm)
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution for the EEF-CD0E151R is determined by the following critical 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)
Physical footprint compatibility: 0.287" L x 0.169" W (7.30mm x 4.30mm) (exact match required)

Secondary Compatibility Parameters:

Voltage Rating: Must be equal to or greater than 2.5 V
ESR: Lower or equal values are acceptable
Lifetime @ Temperature: Higher values indicate improved reliability
Operating Temperature Range: Must encompass or exceed -40°C ~ 105°C

Substitute parts are grouped into two categories: direct functional equivalents (same voltage rating) and higher-voltage alternatives (voltage derating acceptable in lower-voltage applications).

Parameter Comparison

Parameter	EEF-CD0E151R (Main)	EEF-CX0J151R	EEF-SL0E151R	EEF-SX0E151ER
Capacitance	150 µF	150 µF	150 µF	150 µF
Voltage Rating	2.5 V	6.3 V	2.5 V	2.5 V
Tolerance	±20%	±20%	±20%	±20%
ESR (mOhm)	18	15	9	9
Lifetime @ 105°C	1000 Hrs	2000 Hrs	1000 Hrs	2000 Hrs
Operating Temperature	-40°C ~ 105°C	-55°C ~ 105°C	-40°C ~ 105°C	-55°C ~ 105°C
Package / Case	2917 (7343 Metric)	2917 (7343 Metric)	2917 (7343 Metric)	2917 (7343 Metric)
Height - Seated (Max)	0.075" (1.90mm)	0.075" (1.90mm)	0.071" (1.80mm)	0.079" (2.00mm)
Product Status	Obsolete	Active	Obsolete	Active
RoHS3 Compliance	Not specified	Compliant	Not specified	Compliant

Engineering Selection Recommendations

EEF-SX0E151ER is the primary recommended substitute. This part maintains the 2.5 V voltage rating of the original EEF-CD0E151R while offering active product status, RoHS3 compliance, improved ESR (9 mOhm vs. 18 mOhm), and extended lifetime (2000 Hrs vs. 1000 Hrs @ 105°C). The SP-Cap SX series provides superior performance characteristics within the same physical footprint and electrical specifications.

EEF-SL0E151R provides functional equivalence with identical voltage rating and capacitance. This part offers lower ESR (9 mOhm) but carries obsolete product status. Selection of this part should be limited to applications where active product availability is not a constraint.

EEF-CX0J151R is suitable for applications where voltage derating is acceptable. This 6.3 V rated part operates safely in 2.5 V circuits and provides improved performance metrics (15 mOhm ESR, 2000 Hrs lifetime, -55°C ~ 105°C operating range) with active product status and RoHS3 compliance. Physical dimensions remain compatible with the original footprint.

Frequently Asked Questions (FAQ)

Q: Can EEF-CX0J151R replace EEF-CD0E151R in my design?

A: Yes. The EEF-CX0J151R is electrically and mechanically compatible. The 6.3 V rating exceeds the 2.5 V requirement, providing voltage derating margin. All physical dimensions, capacitance, tolerance, and package specifications match the original part. This substitution is valid for applications operating at or below 2.5 V.

Q: What is the difference between EEF-SX0E151ER and EEF-SL0E151R?

A: Both parts share identical electrical specifications (150 µF, 2.5 V, ±20% tolerance). The primary differences are: EEF-SX0E151ER is active product status with RoHS3 compliance and 2000-hour lifetime; EEF-SL0E151R is obsolete with 1000-hour lifetime. EEF-SX0E151ER is preferred for new designs and long-term procurement.

Q: Are there height restrictions I should consider?

A: The main part EEF-CD0E151R has a maximum seated height of 0.075" (1.90mm). EEF-SL0E151R is slightly lower at 0.071" (1.80mm), while EEF-SX0E151ER is slightly higher at 0.079" (2.00mm). Verify PCB layout clearance for the EEF-SX0E151ER variant if height is constrained.

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

A: EEF-SX0E151ER and EEF-CX0J151R both carry active product status, ensuring ongoing availability. EEF-SX0E151ER is recommended as the primary choice due to matching voltage rating and superior performance metrics.

Q: Is RoHS3 compliance required for my application?

A: EEF-SX0E151ER and EEF-CX0J151R are both RoHS3 compliant. If RoHS3 compliance is mandatory, these parts are the appropriate selections. The original EEF-CD0E151R and EEF-SL0E151R do not specify RoHS3 status.

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