ECO-S2AA471BA Equivalent & Substitute Parts

Part Overview

The ECO-S2AA471BA is a 470 µF, 100 V aluminum electrolytic capacitor in radial, can snap-in 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 capacitor is rated for general purpose applications with a 3000-hour lifetime at 105°C and operates across the temperature range of -40°C to 105°C.

Key Parameters

Parameter	Value
Capacitance	470 µF
Tolerance	±20%
Voltage - Rated	100 V
ESR (Equivalent Series Resistance)	388 mOhm @ 120 Hz
Lifetime @ Temperature	3000 Hrs @ 105°C
Operating Temperature Range	-40°C ~ 105°C
Polarization	Polar
Lead Spacing	0.394" (10.00 mm)
Size / Dimension	0.866" Dia (22.00 mm)
Height - Seated (Max)	1.063" (27.00 mm)
Mounting Type	Through Hole
Package / Case	Radial, Can - Snap-In
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the ECO-S2AA471BA are categorized based on the following substitution criteria:

Upgrade Substitutes maintain identical capacitance (470 µF), tolerance (±20%), and physical dimensions (0.866" diameter, 1.063" height, 10.00 mm lead spacing) while offering higher voltage ratings (160 V). These parts are direct functional upgrades suitable for applications where the original 100 V rating is no longer required or where higher voltage margin is desired. Both upgrade substitutes are active products with current manufacturing status.

Similar Substitutes maintain the same capacitance, tolerance, voltage rating (100 V), and operating temperature range but differ in physical dimensions. The 381LX471M100J202 features a larger diameter (0.984" vs 0.866") and reduced height (0.866" vs 1.063"), requiring PCB layout verification before implementation.

Parametric Equivalents match the original part across all critical electrical and mechanical parameters, including capacitance, voltage, tolerance, ESR specification (390 mOhm @ 120 Hz), physical dimensions, and lead spacing. The 381LX471M100H012 provides direct form-fit-function compatibility with active product status and RoHS3 compliance.

Parameter Comparison

Parameter	ECO-S2AA471BA (Main)	160MXG470MEFCSN22X25 (Upgrade)	LGN2C471MELZ25 (Upgrade)	381LX471M100J202 (Similar)	381LX471M100H012 (Parametric Equivalent)
Manufacturer	Panasonic	Rubycon	Nichicon	Cornell Dubilier Electronics	Cornell Dubilier Electronics
Capacitance	470 µF	470 µF	470 µF	470 µF	470 µF
Tolerance	±20%	±20%	±20%	±20%	±20%
Voltage - Rated	100 V	160 V	160 V	100 V	100 V
ESR @ 120 Hz	388 mOhm	—	—	—	390 mOhm
Lifetime @ 105°C	3000 Hrs	3000 Hrs	3000 Hrs	3000 Hrs	3000 Hrs
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Lead Spacing	10.00 mm	10.00 mm	10.00 mm	10.00 mm	10.00 mm
Size / Diameter	22.00 mm	22.00 mm	22.00 mm	25.00 mm	22.00 mm
Height - Seated (Max)	27.00 mm	27.00 mm	27.00 mm	22.00 mm	27.00 mm
Package / Case	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Form-Fit-Function): The 381LX471M100H012 is the recommended parametric equivalent. This part maintains identical electrical specifications (470 µF, 100 V, ±20% tolerance, 390 mOhm ESR @ 120 Hz) and physical dimensions (22.00 mm diameter, 27.00 mm height, 10.00 mm lead spacing). The part is active with ROHS3 compliance and RoHS status certification, ensuring long-term availability and regulatory compliance.

For Voltage Margin Enhancement: The 160MXG470MEFCSN22X25 (Rubycon MXG series) and LGN2C471MELZ25 (Nichicon LGN series) provide 60% higher voltage rating (160 V vs 100 V) while maintaining identical physical footprint and capacitance. Both are active products with ROHS3 compliance. Selection between these two depends on ripple current requirements: the Rubycon part supports 1.51 A @ 120 Hz and 2.265 A @ 10 kHz, while the Nichicon part supports 1.4 A @ 120 Hz and 2.1 A @ 50 kHz.

For Space-Constrained Applications: The 381LX471M100J202 offers reduced height (22.00 mm vs 27.00 mm) but requires verification of increased diameter (25.00 mm vs 22.00 mm) compatibility with PCB layout. This part is active with ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can the 160 V rated substitutes be used in place of the 100 V ECO-S2AA471BA?

A: Yes. The 160MXG470MEFCSN22X25 and LGN2C471MELZ25 are direct physical and electrical upgrades. Higher voltage rating provides additional safety margin and does not degrade performance in 100 V applications. Both maintain identical capacitance (470 µF), tolerance (±20%), physical dimensions, and lead spacing.

Q: What is the difference between the upgrade substitutes 160MXG470MEFCSN22X25 and LGN2C471MELZ25?

A: Both parts share identical capacitance, voltage, tolerance, and physical dimensions. The primary difference is ripple current capability: Rubycon 160MXG470MEFCSN22X25 supports higher ripple current at high frequency (2.265 A @ 10 kHz) compared to Nichicon LGN2C471MELZ25 (2.1 A @ 50 kHz). Selection depends on application ripple current profile.

Q: Is the 381LX471M100J202 a direct replacement?

A: The 381LX471M100J202 maintains electrical equivalence but differs in physical dimensions. Diameter increases from 22.00 mm to 25.00 mm, while height decreases from 27.00 mm to 22.00 mm. PCB layout verification is required before implementation.

Q: Why is the 381LX471M100H012 recommended as the primary equivalent?

A: The 381LX471M100H012 provides parametric equivalence across all critical specifications: identical capacitance (470 µF), voltage (100 V), tolerance (±20%), ESR (390 mOhm @ 120 Hz), physical dimensions (22.00 mm diameter, 27.00 mm height), and lead spacing (10.00 mm). The part is active with ROHS3 compliance and current manufacturing status.

Q: Are all substitute parts RoHS compliant?

A: Yes. All active substitute parts listed (160MXG470MEFCSN22X25, LGN2C471MELZ25, 381LX471M100J202, and 381LX471M100H012) are ROHS3 compliant. The original ECO-S2AA471BA does not specify RoHS status.

Q: What is the lead spacing requirement for these capacitors?

A: All listed parts maintain 10.00 mm (0.394") lead spacing, ensuring PCB footprint compatibility across the entire substitute group.

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