EEF-SX0G181ER Equivalent & Substitute Parts

Part Overview

The EEF-SX0G181ER is a 180 µF, 4 V aluminum polymer surface mount capacitor manufactured by Panasonic Electronic Components. This component is classified as Active product status and is designed for general purpose applications requiring stable capacitance and low equivalent series resistance in compact form factors. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct replacement in circuit designs, particularly when primary part availability is limited or application-specific performance characteristics require evaluation.

Substiute Parts

EEF-SX0G181ER

Panasonic Electronic ComponentsIn Stock: 877EEF-SX0G181ER Datasheet

Current PartRFQ

EEF-CX0G181XR

Panasonic Electronic ComponentsIn Stock: 4233EEF-CX0G181XR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EEF-SX0G181ER is determined by strict equivalence across the following parameters:

• Capacitance value: 180 µF (exact match required)
• Voltage rating: 4 V (exact match required)
• Tolerance: ±20% (exact match required)
• Package / Case: 2917 (7343 Metric) (exact match required)
• Mounting type: Surface Mount (exact match required)
• Operating temperature range: -55°C ~ 105°C (exact match required)
• Lifetime specification: 2000 Hrs @ 105°C (exact match required)
• Compliance: ROHS3 Compliant, REACH Unaffected (exact match required)

The EEF-CX0G181XR meets all substitution criteria. Variations in ESR (Equivalent Series Resistance) and ripple current capacity do not disqualify substitution when all primary electrical and mechanical parameters align, though application-specific ripple current requirements must be evaluated independently.

Parameter Comparison

Engineering Selection Recommendations

Both the EEF-SX0G181ER and EEF-CX0G181XR are Active status products manufactured by Panasonic Electronic Components with identical ROHS3 and REACH compliance certifications. Selection between these parts is based on application-specific requirements:

The EEF-SX0G181ER features lower ESR at 9 mOhm with higher ripple current capacity of 6.3 A @ 100 kHz, suitable for applications requiring minimal impedance and higher current handling. The EEF-CX0G181XR provides a lower seated height of 0.075" (1.90mm) compared to 0.079" (2.00mm), with ESR of 12 mOhm and ripple current of 5.6 A @ 100 kHz, appropriate for space-constrained designs where height clearance is a limiting factor.

Both parts maintain identical electrical core specifications: 180 µF capacitance, 4 V voltage rating, ±20% tolerance, and 2000 hour lifetime at 105°C. PCB land pattern compatibility is identical at 0.287" L x 0.169" W (7.30mm x 4.30mm).

Frequently Asked Questions (FAQ)

Q: Can EEF-CX0G181XR replace EEF-SX0G181ER in existing designs?

A: Yes. Both parts share identical capacitance (180 µF), voltage rating (4 V), tolerance (±20%), package (2917 / 7343 Metric), and operating specifications. PCB land patterns are identical. The primary difference is seated height: EEF-CX0G181XR is 0.004" (0.10mm) lower. Verify that your application does not depend on the higher ripple current capacity of the EEF-SX0G181ER (6.3 A vs. 5.6 A @ 100 kHz).

Q: What are the mechanical compatibility considerations?

A: Both parts use identical surface mount land sizes of 0.287" L x 0.169" W (7.30mm x 4.30mm). The EEF-CX0G181XR has a maximum seated height of 0.075" (1.90mm) versus 0.079" (2.00mm) for the EEF-SX0G181ER. Confirm clearance requirements for your specific PCB assembly, particularly in designs with height constraints or overlying components.

Q: Are there compliance differences between these parts?

A: No. Both parts are ROHS3 Compliant and REACH Unaffected with identical regulatory status.

Q: How do ESR and ripple current differences affect substitution?

A: The EEF-SX0G181ER has lower ESR (9 mOhm) and higher ripple current (6.3 A @ 100 kHz). The EEF-CX0G181XR has higher ESR (12 mOhm) and lower ripple current (5.6 A @ 100 kHz). Applications with high ripple current demands or strict impedance requirements should use the EEF-SX0G181ER. Applications prioritizing compact height may use the EEF-CX0G181XR if ripple current and ESR specifications remain within acceptable limits.

Q: What is the packaging format for both parts?

A: Both parts are supplied in Tape & Reel (TR) packaging, standard for surface mount production assembly.