Panasonic EEF-SL0E151ER Equivalent & Substitute Parts

Part Overview

The Panasonic EEF-SL0E151ER is a 150 µF, 2.5 V aluminum polymer capacitor in 2917 (7343 Metric) surface mount package. This part operates across -40°C to 105°C with 9 mOhm ESR and 1000 hours lifetime rating at 105°C. The EEF-SL0E151ER carries obsolete product status. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for production and repair applications.

Key Parameters

Parameter	Value
Capacitance	150 µF
Voltage Rating	2.5 V
Type	Aluminum Polymer
ESR (Equivalent Series Resistance)	9 mOhm
Lifetime @ 105°C	1000 Hours
Operating Temperature Range	-40°C to 105°C
Package / Case	2917 (7343 Metric)
Mounting Type	Surface Mount
Ripple Current @ 100 kHz	3 A

Substitute Part Grouping Explanation

Substitution relationships are determined by the following criteria:

Direct Equivalents maintain identical electrical specifications (capacitance, voltage, ESR, lifetime) and mechanical compatibility (package, dimensions, mounting). These parts are interchangeable without circuit redesign.

Direct Substitutes share core electrical parameters (150 µF, 2.5 V, 9 mOhm ESR) but may differ in product status, packaging format, or lifetime rating. These are functionally equivalent for the specified application.

Upgrade Substitutes increase voltage rating (4 V or 6.3 V) while maintaining 150 µF capacitance, 9 mOhm ESR, and package dimensions. These provide enhanced voltage margin and improved reliability (2000 hours @ 105°C) and are suitable for applications where higher voltage headroom is acceptable.

Similar Parts maintain 150 µF capacitance and package compatibility but operate at lower voltage ratings (2 V) or lack specified ESR data. These are suitable only when circuit voltage requirements are lower.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	ESR	Lifetime @ 105°C	Operating Temp	Product Status	Ripple Current @ 100 kHz	Height (Max)
EEF-SL0E151ER	Panasonic	150 µF	2.5 V	9 mOhm	1000 Hrs	-40°C ~ 105°C	Obsolete	3 A	0.071" (1.80 mm)
EEF-SL0E151R	Panasonic	150 µF	2.5 V	9 mOhm	1000 Hrs	-40°C ~ 105°C	Obsolete	—	0.071" (1.80 mm)
EEF-SX0E151ER	Panasonic	150 µF	2.5 V	9 mOhm	2000 Hrs	-55°C ~ 105°C	Active	6.3 A	0.079" (2.00 mm)
EEF-SX0G151ER	Panasonic	150 µF	4 V	9 mOhm	2000 Hrs	-55°C ~ 105°C	Active	6.3 A	0.079" (2.00 mm)
EEF-SX0J151ER	Panasonic	150 µF	6.3 V	9 mOhm	2000 Hrs	-55°C ~ 105°C	Active	6.3 A	0.079" (2.00 mm)
EEF-SX0D151ER	Panasonic	150 µF	2 V	—	2000 Hrs	-55°C ~ 105°C	Active	—	0.079" (2.00 mm)

Engineering Selection Recommendations

For Direct Replacement (Obsolete Part Mitigation): EEF-SL0E151R is the primary equivalent, maintaining identical electrical and mechanical specifications with Cut Tape and Digi-Reel packaging options.

For Active Component Sourcing: EEF-SX0E151ER is the recommended substitute. It maintains 150 µF, 2.5 V, and 9 mOhm ESR specifications while offering active product status, extended lifetime (2000 hours @ 105°C), expanded operating temperature range (-55°C to 105°C), and higher ripple current capability (6.3 A @ 100 kHz). Height increases from 1.80 mm to 2.00 mm; verify PCB clearance before implementation.

For Enhanced Voltage Margin: EEF-SX0G151ER (4 V) and EEF-SX0J151ER (6.3 V) provide upgraded voltage ratings with identical capacitance and ESR. Both are active products with 2000-hour lifetime and RoHS3 compliance. Select based on circuit voltage requirements and available board space.

For Lower Voltage Applications: EEF-SX0D151ER operates at 2 V with active status and 2000-hour lifetime. Use only when circuit voltage does not exceed 2 V.

Frequently Asked Questions (FAQ)

Q: Can EEF-SX0E151ER directly replace EEF-SL0E151ER? A: Electrically yes. The 150 µF, 2.5 V, 9 mOhm specifications are identical. However, height increases from 1.80 mm to 2.00 mm. Verify PCB layout clearance before substitution.

Q: What is the difference between EEF-SL0E151ER and EEF-SL0E151R? A: Both are identical in electrical and mechanical specifications. The difference is packaging format: EEF-SL0E151ER uses standard tape and reel, while EEF-SL0E151R is available in Cut Tape and Digi-Reel formats.

Q: Why should I use EEF-SX0G151ER or EEF-SX0J151ER instead of EEF-SX0E151ER? A: The higher voltage ratings (4 V and 6.3 V) provide additional voltage margin and circuit protection. Use these when your design voltage is lower than the rated voltage and you want enhanced reliability. All three maintain identical 150 µF capacitance and 9 mOhm ESR.

Q: Are the EEF-SX series parts RoHS compliant? A: Yes. EEF-SX0E151ER, EEF-SX0G151ER, EEF-SX0J151ER, and EEF-SX0D151ER are all RoHS3 compliant and REACH unaffected.

Q: Can I use EEF-SX0D151ER (2 V) in place of EEF-SL0E151ER (2.5 V)? A: No. The 2 V rating is lower than the original 2.5 V specification. Use only if your circuit voltage is confirmed to operate below 2 V.

Q: What is the temperature operating range difference? A: EEF-SL series operates -40°C to 105°C. EEF-SX series extends to -55°C to 105°C, providing wider low-temperature capability.

Q: How does lifetime rating affect part selection? A: EEF-SL0E151ER and EEF-SL0E151R are rated 1000 hours @ 105°C. All EEF-SX series parts are rated 2000 hours @ 105°C, doubling the expected operational life at elevated temperature.

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