ECO-S2DA151BA Equivalent & Substitute Parts

Part Overview

The ECO-S2DA151BA is a 150 µF, 200 V aluminum electrolytic capacitor in radial, can snap-in configuration manufactured by Panasonic Electronic Components. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part operates across a temperature range of -40°C to 105°C with a rated lifetime of 3000 hours at 105°C, serving general-purpose applications requiring stable capacitance and low equivalent series resistance.

Key Parameters

Parameter	Value
Capacitance	150 µF
Tolerance	±20%
Voltage - Rated	200 V
ESR (Equivalent Series Resistance)	1.105 Ohm @ 120 Hz
Lifetime @ Temperature	3000 Hrs @ 105°C
Operating Temperature Range	-40°C ~ 105°C
Ripple Current @ Low Frequency	680 mA @ 120 Hz
Ripple Current @ High Frequency	952 mA @ 100 kHz
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
Polarization	Polar

Substitute Part Grouping Explanation

Substitution of the ECO-S2DA151BA 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)
Voltage Rating: 200 V minimum (equal or higher acceptable)
Operating Temperature Range: -40°C to 105°C (minimum requirement)
Package / Case: Radial, Can - Snap-In (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Polarization: Polar (exact match required)

Secondary Compatibility Parameters:

ESR (Equivalent Series Resistance): Lower or equal values acceptable
Lifetime @ Temperature: Equal or greater values acceptable
Ripple Current Ratings: Equal or greater values acceptable
Physical Dimensions: Matching or smaller envelope acceptable within lead spacing constraint

Substitute parts are categorized as follows:

Direct Manufacturer Substitutes: Parts meeting all primary criteria with identical voltage rating (200 V) and equivalent performance characteristics.

Upgrade Substitutes: Parts meeting all primary criteria with higher voltage rating (250 V), providing enhanced voltage margin and extended operational reliability.

Similar Substitutes: Parts meeting all primary criteria with reduced lifetime specifications (1000 Hrs @ 105°C vs. 3000 Hrs), suitable for applications with lower thermal stress requirements.

Parametric Equivalents: Parts meeting all primary criteria with matching voltage rating and equivalent ESR and lifetime specifications.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	ESR @ 120 Hz	Lifetime @ 105°C	Size Dia	Height	Product Status
ECO-S2DA151BA	Panasonic	150 µF	200 V	±20%	1.105 Ω	3000 Hrs	0.866" (22 mm)	1.063" (27 mm)	Obsolete
381LX151M200J202	Cornell Dubilier	150 µF	200 V	±20%	—	3000 Hrs	0.984" (25 mm)	0.866" (22 mm)	Active
381LX151M200H012	Cornell Dubilier	150 µF	200 V	±20%	1.1 Ω	3000 Hrs	0.866" (22 mm)	1.063" (27 mm)	Active
381LX151M250H012	Cornell Dubilier	150 µF	250 V	±20%	1.327 Ω	3000 Hrs	0.866" (22 mm)	1.063" (27 mm)	Active
B43254E2157M	EPCOS - TDK	150 µF	250 V	±20%	—	3000 Hrs	0.866" (22 mm)	1.063" (27 mm)	Active
B43255E2157M000	EPCOS - TDK	150 µF	250 V	±20%	—	5000 Hrs	0.866" (22 mm)	1.063" (27 mm)	Active
LP151M200A1P3	Cornell Dubilier	150 µF	200 V	±20%	1.65 Ω	1000 Hrs	0.866" (22 mm)	0.984" (25 mm)	Active
LP151M200C1P3	Cornell Dubilier	150 µF	200 V	±20%	1.65 Ω	1000 Hrs	0.984" (25 mm)	0.984" (25 mm)	Active

Engineering Selection Recommendations

For Direct Replacement (Same Voltage, Same Lifetime): 381LX151M200H012 (Cornell Dubilier) is the primary parametric equivalent, matching the ECO-S2DA151BA in voltage rating (200 V), lifetime (3000 Hrs @ 105°C), physical dimensions (0.866" Dia × 1.063" Height), and ESR specification (1.1 Ω @ 120 Hz). This part is active and RoHS3 compliant.

For Enhanced Reliability (Higher Voltage Rating): B43255E2157M000 (EPCOS - TDK) provides the highest operational margin with 250 V rating and extended lifetime (5000 Hrs @ 105°C). Physical dimensions match the original part (0.866" Dia × 1.063" Height). This part is active and RoHS3 compliant.

381LX151M250H012 (Cornell Dubilier) offers 250 V rating with 3000 Hrs @ 105°C lifetime and matching physical dimensions. This part is active and RoHS3 compliant.

For Cost-Optimized Applications (Reduced Thermal Stress): LP151M200C1P3 (Cornell Dubilier) maintains 200 V rating with 1000 Hrs @ 105°C lifetime, suitable for applications with lower thermal cycling requirements. This part is active and RoHS3 compliant.

For Direct Mechanical Fit (Same Footprint): 381LX151M200J202 (Cornell Dubilier) provides identical lead spacing (0.394" / 10.00 mm) and snap-in configuration with 200 V rating and 3000 Hrs @ 105°C lifetime. Physical dimensions differ slightly (0.984" Dia × 0.866" Height). This part is active and RoHS3 compliant.

All recommended substitutes are active products with REACH compliance and EAR99 export classification, matching the original part's regulatory status.

Frequently Asked Questions (FAQ)

Q: Can I use a 250 V rated capacitor in place of the 200 V ECO-S2DA151BA? A: Yes. Higher voltage-rated capacitors are electrically compatible with lower voltage applications. The 250 V substitutes (381LX151M250H012, B43254E2157M, B43255E2157M000) provide additional voltage margin and are suitable direct replacements.

Q: What is the difference between the 3000 Hrs and 1000 Hrs lifetime ratings? A: Lifetime rating indicates the expected operational duration at maximum rated temperature (105°C) under specified ripple current conditions. The 3000 Hrs rating (ECO-S2DA151BA, 381LX151M200H012, 381LX151M250H012, B43254E2157M) provides longer service life than the 1000 Hrs rating (LP151M200A1P3, LP151M200C1P3). Selection depends on application thermal stress and expected service duration.

Q: Are there physical dimension differences between substitute parts? A: Yes. While all parts maintain the 0.394" (10.00 mm) lead spacing and snap-in mounting configuration, diameter and height vary. The ECO-S2DA151BA measures 0.866" Dia × 1.063" Height. The 381LX151M200J202 measures 0.984" Dia × 0.866" Height. The LP151M200C1P3 measures 0.984" Dia × 0.984" Height. Verify PCB layout clearance before selection.

Q: Which substitute offers the best ESR performance? A: The 381LX151M200H012 provides ESR of 1.1 Ω @ 120 Hz, closely matching the original ECO-S2DA151BA at 1.105 Ω @ 120 Hz. The 381LX151M250H012 specifies 1.327 Ω @ 120 Hz. The LP series parts specify 1.65 Ω @ 120 Hz. Lower ESR values reduce heat generation and are preferred for high-ripple-current applications.

Q: Are all substitute parts RoHS compliant? A: Yes. All recommended substitutes are RoHS3 compliant. The original ECO-S2DA151BA is obsolete; all active alternatives meet current environmental compliance requirements.

Q: What is the difference between the 381LX151M200H012 and 381LX151M200J202? A: Both are Cornell Dubilier 381LX series parts with 150 µF, 200 V, ±20% specifications. The 381LX151M200H012 specifies 1.1 Ω ESR @ 120 Hz and measures 0.866" Dia × 1.063" Height. The 381LX151M200J202 does not specify ESR and measures 0.984" Dia × 0.866" Height. The 381LX151M200H012 is the closer parametric match to the original part.

Q: Can I use the B43255E2157M000 in a space-constrained application? A: Yes. The B43255E2157M000 maintains the same physical dimensions as the original ECO-S2DA151BA (0.866" Dia × 1.063" Height) while providing 250 V rating and extended 5000 Hrs @ 105°C lifetime. It is suitable for space-constrained designs requiring enhanced reliability.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message