ECA-1EM332 Equivalent & Substitute Parts

Part Overview

The ECA-1EM332 is a 3300 µF, 25 V aluminum electrolytic capacitor in radial, can package manufactured by Panasonic Electronic Components. This part operates across -40°C to 85°C with a rated lifetime of 2000 hours at 85°C and is classified as Active product status. Equivalent and substitute parts are identified based on matching or exceeding core electrical parameters: capacitance value, voltage rating, physical dimensions, and lead spacing. Alternative parts may offer enhanced performance characteristics such as extended lifetime ratings, wider operating temperature ranges, or improved ripple current handling.

Key Parameters

Parameter	ECA-1EM332 Value
Capacitance	3300 µF
Voltage Rating	25 V
Tolerance	±20%
Operating Temperature Range	-40°C ~ 85°C
Lifetime @ Temperature	2000 Hrs @ 85°C
Lead Spacing	0.295" (7.50 mm)
Case Diameter	0.630" (16.00 mm)
Height (Seated Max)	1.063" (27.00 mm)
Mounting Type	Through Hole
Package Type	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Primary Matching Parameters (Required for Direct Substitution):

Capacitance: 3300 µF
Voltage Rating: 25 V or higher
Lead Spacing: 0.295" (7.50 mm)
Case Diameter: 0.630" (16.00 mm)
Height: 1.063" (27.00 mm) or within tolerance
Mounting Type: Through Hole
Package Type: Radial, Can
Polarization: Polar

Secondary Performance Parameters (Determine Substitution Class):

Lifetime @ Temperature: 2000 Hrs @ 85°C or equivalent thermal rating
Operating Temperature Range: -40°C ~ 85°C minimum
Ripple Current Ratings @ 120 Hz and 100 kHz
ESR and Impedance characteristics

Substitute parts are classified as follows:

Direct Substitutes: Match all primary parameters with identical or superior lifetime and temperature ratings. Suitable for drop-in replacement without circuit redesign.

Upgrade Substitutes: Match all primary parameters but offer extended operating temperature range (-55°C minimum) or higher temperature lifetime ratings (105°C operation). Recommended for applications requiring enhanced thermal performance.

Similar Substitutes: Match primary parameters with different packaging format (Cut Tape vs. Bulk) or identical electrical specifications. Suitable for replacement with packaging format consideration.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Lifetime @ Temp	Operating Temp Range	Lead Spacing	Case Dia	Height	Ripple Current @ 120 Hz	Ripple Current @ 100 kHz	Product Status	Packaging
ECA-1EM332	Panasonic	3300 µF	25 V	2000 Hrs @ 85°C	-40°C ~ 85°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.063" (27.00 mm)	1.3 A	2.21 A	Active	Bulk
EEU-FR1E332	Panasonic	3300 µF	25 V	10000 Hrs @ 105°C	-40°C ~ 105°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.063" (27.00 mm)	3.056 A	3.82 A	Active	Bulk
ECA-1EHG332	Panasonic	3300 µF	25 V	2000 Hrs @ 105°C	-55°C ~ 105°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.063" (27.00 mm)	1.4 A	1.61 A	Active	Bulk
EEU-HD1V332	Panasonic	3300 µF	35 V	2000 Hrs @ 105°C	-55°C ~ 105°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.063" (27.00 mm)	1.61 A	1.852 A	Active	Bulk
ECA-1EM332B	Panasonic	3300 µF	25 V	2000 Hrs @ 85°C	-40°C ~ 85°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.063" (27.00 mm)	1.3 A	2.21 A	Active	Cut Tape
25ZLJ3300M16X25	Rubycon	3300 µF	25 V	10000 Hrs @ 105°C	-40°C ~ 105°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.063" (27.00 mm)	2.667 A	3.81 A	Active	Bulk
338CKS025M	Cornell Dubilier / Illinois Capacitor	3300 µF	25 V	2000 Hrs @ 85°C	-40°C ~ 85°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.043" (26.50 mm)	2.305 A	3.227 A	Active	Bulk
EKZN250ELL332ML25S	Chemi-Con	3300 µF	25 V	10000 Hrs @ 105°C	-40°C ~ 105°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.043" (26.50 mm)	2.8575 A	3.81 A	Active	Bulk
UHV1E332MHD	Nichicon	3300 µF	25 V	6000 Hrs @ 105°C	-40°C ~ 105°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.063" (27.00 mm)	2.993 A	3.99 A	Not For New Designs	Bulk
UHW1E332MHD6	Nichicon	3300 µF	25 V	10000 Hrs @ 105°C	-40°C ~ 105°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.063" (27.00 mm)	2.858 A	3.81 A	Not For New Designs	Bulk
25YXJ3300M16X25	Rubycon	3300 µF	25 V	10000 Hrs @ 105°C	-40°C ~ 105°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.063" (27.00 mm)	2.344 A	2.93 A	Active	Bulk

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

ECA-1EM332B (Panasonic): Identical electrical and thermal specifications to the main part. Differs only in packaging format (Cut Tape vs. Bulk). Suitable for direct substitution when packaging format is compatible with procurement and assembly processes.

For Enhanced Thermal Performance (Extended Lifetime):

EEU-FR1E332 (Panasonic): Extends lifetime to 10000 hours at 105°C while maintaining 25 V rating and identical physical dimensions. Recommended for applications requiring extended operational life or higher ambient temperature environments.
25ZLJ3300M16X25 (Rubycon): Provides 10000 hours at 105°C with improved ripple current handling (2.667 A @ 120 Hz). Active product status ensures continued availability and support.
EKZN250ELL332ML25S (Chemi-Con): Delivers 10000 hours at 105°C with superior ripple current performance (2.8575 A @ 120 Hz). Slight height reduction (1.043" vs. 1.063") requires PCB layout verification.

For Extended Temperature Range:

ECA-1EHG332 (Panasonic): Extends operating range to -55°C ~ 105°C while maintaining 25 V rating. Suitable for applications requiring cold-temperature operation or thermal cycling stress.
EEU-HD1V332 (Panasonic): Provides 35 V rating with -55°C ~ 105°C operating range. Recommended for circuits where voltage margin enhancement is beneficial without physical footprint change.

For Active Product Status Priority:

25YXJ3300M16X25 (Rubycon): Active product status with 10000 hours @ 105°C rating. Recommended for new designs requiring long-term component availability and manufacturer support.

Parts Not Recommended for New Designs:

UHV1E332MHD (Nichicon): Marked "Not For New Designs." Use only for legacy system maintenance or repair applications.
UHW1E332MHD6 (Nichicon): Marked "Not For New Designs." Use only for legacy system maintenance or repair applications.

Frequently Asked Questions (FAQ)

Q: Can ECA-1EM332B be used as a direct replacement for ECA-1EM332? A: Yes. Both parts are electrically and thermally identical with matching capacitance (3300 µF), voltage rating (25 V), operating temperature range (-40°C ~ 85°C), and physical dimensions. The only difference is packaging format: ECA-1EM332 is supplied in Bulk packaging while ECA-1EM332B is supplied in Cut Tape format. Verify that your assembly process accommodates the packaging format.

Q: What is the difference between a Direct Substitute and an Upgrade Substitute? A: Direct substitutes match all electrical and physical parameters of the main part with equivalent or superior performance. Upgrade substitutes also match all primary parameters but offer enhanced characteristics such as extended operating temperature range (to -55°C or 105°C) or longer lifetime ratings at elevated temperatures. Upgrade substitutes are suitable for drop-in replacement and provide additional design margin for thermal or environmental stress conditions.

Q: Can I use a 35 V rated capacitor (EEU-HD1V332) in place of a 25 V rated capacitor (ECA-1EM332)? A: Yes, from an electrical standpoint. The 35 V rating provides voltage margin and is compatible with 25 V circuit operation. However, verify that the physical dimensions match your PCB layout. EEU-HD1V332 maintains identical lead spacing (0.295"), case diameter (0.630"), and height (1.063"), so mechanical compatibility is confirmed. The higher voltage rating does not degrade performance in 25 V applications.

Q: Why do some substitute parts have different heights (1.043" vs. 1.063")? A: Manufacturing tolerances and design variations between manufacturers result in slight height differences within the radial can package family. Parts with 1.043" height (338CKS025M, EKZN250ELL332ML25S) are mechanically compatible with 1.063" height designs, but PCB layout clearance must be verified to ensure no interference with adjacent components or board features.

Q: What does "Not For New Designs" product status mean? A: Parts marked "Not For New Designs" (UHV1E332MHD, UHW1E332MHD6) are in end-of-life phase. Manufacturers continue to supply existing inventory but do not recommend these parts for new product development. Use these parts only for maintenance, repair, or legacy system support where component continuity is required. For new designs, select parts with "Active" product status.

Q: How do ripple current ratings affect part selection? A: Ripple current ratings indicate the maximum AC current the capacitor can handle at specified frequencies without exceeding temperature limits. Higher ripple current capability (measured in amperes at 120 Hz and 100 kHz) allows the capacitor to operate in higher-current applications. Parts with superior ripple current ratings provide design margin for power supply filtering, energy storage, or high-frequency switching applications. Compare ripple current values against your circuit's actual ripple current requirements.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All parts listed in this reference, including the main part ECA-1EM332 and all substitutes, are RoHS3 compliant. This ensures compatibility with environmental regulations and procurement requirements for restricted substance compliance.

Q: Can I mix different manufacturers' parts in the same circuit or assembly? A: Yes. All listed substitute parts meet identical electrical specifications (3300 µF, 25 V, ±20% tolerance) and physical dimensions. Mixing manufacturers is acceptable from an electrical and mechanical standpoint. However, verify that your procurement, quality assurance, and supply chain processes accommodate multiple manufacturer sources. Maintain consistent part selection within a single production batch when possible to simplify inventory management and traceability.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message