EET-ED2D122DA Equivalent & Substitute Parts

Part Overview

The Panasonic EET-ED2D122DA is a 1200 µF, 200 V aluminum electrolytic capacitor in radial, can snap-in package with 3000 hours lifetime at 105°C. This part is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for production and field service applications.

Key Parameters

Parameter	Value
Capacitance	1200 µF
Voltage Rating	200 V
Tolerance	±20%
ESR @ 120Hz	124 mOhm
Lifetime @ 105°C	3000 Hours
Operating Temperature Range	-40°C to 105°C
Lead Spacing	0.394" (10.00 mm)
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole

Substitute Part Grouping Explanation

Substitution is determined by strict equivalence across the following parameters: capacitance (1200 µF), voltage rating (200 V), tolerance (±20%), lead spacing (10.00 mm), package type (radial snap-in), and mounting type (through hole). Parts are grouped into two categories:

Direct Substitutes maintain all critical electrical parameters including ESR (124 mOhm @ 120Hz) and lifetime (3000 hours @ 105°C), with identical or compatible physical dimensions.

Similar Substitutes maintain capacitance, voltage, tolerance, lead spacing, and package type but differ in one or more of the following: ESR value, lifetime rating, or physical dimensions (diameter or height). These parts are electrically compatible but may have different performance characteristics in ripple current handling or thermal aging.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	ESR @ 120Hz	Lifetime @ 105°C	Diameter	Height (Max)	Status
EET-ED2D122DA	Panasonic	1200 µF	200 V	124 mOhm	3000 Hrs	1.181" (30 mm)	1.575" (40 mm)	Obsolete
381LR122M200K042	Cornell Dubilier	1200 µF	200 V	124 mOhm	3000 Hrs	1.181" (30 mm)	1.654" (42 mm)	Active
B43504F2128M000	EPCOS - TDK	1200 µF	200 V	120 mOhm	3000 Hrs	1.181" (30 mm)	1.654" (42 mm)	Active
381LQ122M200J052	Cornell Dubilier	1200 µF	200 V	166 mOhm	2000 Hrs	0.984" (25 mm)	2.047" (52 mm)	Active
381LQ122M200K032	Cornell Dubilier	1200 µF	200 V	166 mOhm	2000 Hrs	1.181" (30 mm)	1.457" (37 mm)	Active
381LR122M200A032	Cornell Dubilier	1200 µF	200 V	124 mOhm	3000 Hrs	1.378" (35 mm)	1.457" (37 mm)	Active
381LX122M200A032	Cornell Dubilier	1200 µF	200 V	Not Specified	3000 Hrs	1.378" (35 mm)	1.457" (37 mm)	Active
381LX122M200K042	Cornell Dubilier	1200 µF	200 V	Not Specified	3000 Hrs	1.181" (30 mm)	1.654" (42 mm)	Active
381LX122M200K052	Cornell Dubilier	1200 µF	200 V	166 mOhm	3000 Hrs	1.181" (30 mm)	2.047" (52 mm)	Active
LP122M200E9P3	Cornell Dubilier	1200 µF	200 V	165 mOhm	1000 Hrs	1.181" (30 mm)	1.969" (50 mm)	Active
LP122M200H5P3	Cornell Dubilier	1200 µF	200 V	165 mOhm	1000 Hrs	1.378" (35 mm)	1.378" (35 mm)	Active

Engineering Selection Recommendations

Direct Substitutes (Preferred for Drop-In Replacement):

381LR122M200K042 and B43504F2128M000 are direct electrical equivalents with matching capacitance, voltage, tolerance, ESR, and 3000-hour lifetime. Both are active products with RoHS3 compliance. 381LR122M200K042 has identical ESR (124 mOhm) and lifetime. B43504F2128M000 has slightly lower ESR (120 mOhm), which is advantageous for ripple current performance. Physical dimensions differ slightly in height; verify PCB layout clearance before selection.

Similar Substitutes (Conditional Use):

381LQ122M200K032 and 381LQ122M200J052 maintain electrical compatibility but have reduced lifetime (2000 hours vs. 3000 hours) and higher ESR (166 mOhm). Use only in applications where the reduced lifetime and higher ESR are acceptable.

381LR122M200A032 and 381LX122M200A032 match the original part's 3000-hour lifetime but have larger diameter (1.378" vs. 1.181"). Verify PCB footprint compatibility.

381LX122M200K042 and 381LX122M200K052 are active products with 3000-hour lifetime. ESR is not specified for 381LX122M200K042; 381LX122M200K052 has 166 mOhm ESR. Height varies; 381LX122M200K052 is significantly taller (2.047").

LP122M200E9P3 and LP122M200H5P3 have reduced lifetime (1000 hours) and higher ESR (165 mOhm). Use only where reduced performance specifications are acceptable.

All substitute parts are RoHS3 compliant and REACH unaffected, except the original Panasonic part which is REACH affected.

Frequently Asked Questions (FAQ)

Q: Can 381LR122M200K042 directly replace EET-ED2D122DA?

A: Yes. Both parts have identical capacitance (1200 µF), voltage (200 V), tolerance (±20%), ESR (124 mOhm @ 120Hz), and lifetime (3000 hours @ 105°C). Lead spacing and package type are identical. Height differs by 0.079" (2 mm); verify PCB clearance.

Q: What is the difference between direct and similar substitutes?

A: Direct substitutes maintain all critical electrical parameters. Similar substitutes maintain capacitance, voltage, tolerance, lead spacing, and package type but differ in ESR, lifetime, or physical dimensions. Similar substitutes are electrically compatible but may have different performance in ripple current handling or thermal aging.

Q: Why do some parts have unspecified ESR?

A: ESR values are provided only when specified in the input data. Parts 381LX122M200A032 and 381LX122M200K042 do not have ESR values in the provided specifications. Contact the manufacturer for complete electrical characterization if ESR is critical to your application.

Q: Can I use LP122M200E9P3 as a substitute?

A: LP122M200E9P3 is electrically compatible but has reduced lifetime (1000 hours vs. 3000 hours) and higher ESR (165 mOhm vs. 124 mOhm). Use only in applications where reduced thermal life and higher impedance are acceptable.

Q: Are all substitute parts RoHS compliant?

A: All substitute parts listed are RoHS3 compliant. The original Panasonic EET-ED2D122DA is not RoHS compliant. If RoHS compliance is required, select from the active substitute parts.

Q: What should I verify before selecting a substitute?

A: Verify PCB layout clearance for physical dimensions (diameter and height), confirm that ESR and lifetime specifications meet application requirements, and validate that the snap-in mounting interface is compatible with your PCB design.

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