Equivalent & Substitute Parts for ECA-2DM330

Part Overview

The ECA-2DM330 is a 33 µF, 200 V aluminum electrolytic capacitor in radial configuration manufactured by Panasonic Electronic Components. This component is rated for 2000 hours at 85°C and is designed for general-purpose applications requiring through-hole mounting. The part is active and ROHS3 compliant. Equivalent and substitute parts are identified to provide design flexibility, accommodate supply chain variations, and enable selection based on specific thermal, reliability, and performance requirements.

Key Parameters

Parameter	Value
Capacitance	33 µF
Voltage Rating	200 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-25°C ~ 85°C
Lead Spacing	0.197" (5.00 mm)
Case Diameter	0.394" (10.00 mm)
Height (Seated Max)	0.866" (22.00 mm)
Mounting Type	Through Hole, Radial
Polarization	Polar

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Primary Compatibility Requirements (Mandatory):

Capacitance: 33 µF (exact match)
Voltage Rating: 200 V minimum (equal or higher acceptable)
Tolerance: ±20% (exact match)
Lead Spacing: 0.197" (5.00 mm) (exact match)
Case Diameter: 0.394" (10.00 mm) (exact match)
Mounting Type: Through Hole, Radial (exact match)
Polarization: Polar (exact match)

Secondary Compatibility Parameters (Performance Enhancement):

Lifetime @ Temperature: Equal or greater than 2000 Hrs @ 85°C
Operating Temperature Range: Equal or extended range
Ripple Current Capability: Equal or greater capacity

Parts are grouped into two categories:

Direct Substitutes (200 V Rating): Parts maintaining the original 200 V voltage specification with identical mechanical and electrical core parameters.

Upgrade Substitutes (250 V Rating): Parts with elevated voltage rating (250 V) that maintain all other mechanical and electrical compatibility while providing enhanced voltage margin. These are suitable for applications where higher voltage headroom is beneficial.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp Range	Lead Spacing	Case Dia	Height (Max)	Ripple Current @ 120 Hz	Ripple Current @ 100 kHz
ECA-2DM330	Panasonic	33 µF	200 V	±20%	2000 Hrs @ 85°C	-25°C ~ 85°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.866" (22.00 mm)	220 mA	374 mA
EEU-EE2D330	Panasonic	33 µF	200 V	±20%	8000 Hrs @ 105°C	-25°C ~ 105°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.866" (22.00 mm)	322 mA	920 mA
UCS2D330MPD	Nichicon	33 µF	200 V	±20%	8000 Hrs @ 105°C	-40°C ~ 105°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.846" (21.50 mm)	325 mA	650 mA
200BXC33MEFC10X20	Rubycon	33 µF	200 V	±20%	10000 Hrs @ 105°C	-25°C ~ 105°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.866" (22.00 mm)	260 mA	650 mA
200PX33MEFC10X20	Rubycon	33 µF	200 V	±20%	2000 Hrs @ 105°C	-40°C ~ 105°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.866" (22.00 mm)	140 mA	210 mA
250PK33MEFCT810X20	Rubycon	33 µF	250 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.866" (22.00 mm)	205 mA	307.5 mA
250PX33MEFC10X20	Rubycon	33 µF	250 V	±20%	2000 Hrs @ 105°C	-40°C ~ 105°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.866" (22.00 mm)	140 mA	210 mA
EKXJ251ELL330MJ20S	Chemi-Con	33 µF	250 V	±20%	10000 Hrs @ 105°C	-40°C ~ 105°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.846" (21.50 mm)	240 mA	600 mA

Engineering Selection Recommendations

Direct Substitutes at 200 V Rating:

EEU-EE2D330 (Panasonic) provides extended lifetime (8000 Hrs @ 105°C) and expanded operating temperature range (-25°C ~ 105°C) while maintaining identical voltage and mechanical specifications. This part is suitable for applications requiring enhanced thermal performance and longer service life.

UCS2D330MPD (Nichicon) offers 8000 Hrs @ 105°C lifetime with extended low-temperature operation (-40°C ~ 105°C). Height is 0.846" (21.50 mm), which is 0.020" shorter than the original. This part is ROHS3 compliant and suitable for temperature-critical applications.

200BXC33MEFC10X20 (Rubycon) provides the highest lifetime rating at 200 V (10000 Hrs @ 105°C) with extended operating temperature range (-25°C ~ 105°C). Mechanical dimensions match the original specification exactly.

200PX33MEFC10X20 (Rubycon) maintains the original 2000 Hrs @ 85°C lifetime specification at 200 V but extends the operating temperature range to -40°C ~ 105°C. This part is suitable for low-temperature applications.

Upgrade Substitutes at 250 V Rating:

250PK33MEFCT810X20 (Rubycon) provides 250 V rating with 2000 Hrs @ 85°C lifetime and extended low-temperature operation (-40°C ~ 85°C). Packaging is Cut Tape (CT) rather than Bulk. This part is suitable for applications requiring higher voltage margin.

250PX33MEFC10X20 (Rubycon) provides 250 V rating with 2000 Hrs @ 105°C lifetime and extended operating temperature range (-40°C ~ 105°C). This part combines voltage upgrade with improved thermal performance.

EKXJ251ELL330MJ20S (Chemi-Con) provides the highest performance upgrade: 250 V rating, 10000 Hrs @ 105°C lifetime, and extended operating temperature range (-40°C ~ 105°C). This part carries AEC-Q200 automotive qualification and is suitable for demanding automotive and industrial applications. Height is 0.846" (21.50 mm).

All substitute parts are ROHS3 compliant and maintain the same lead spacing (0.197" / 5.00 mm) and case diameter (0.394" / 10.00 mm) as the original ECA-2DM330.

Frequently Asked Questions (FAQ)

Q: Can I use a 250 V rated capacitor in place of a 200 V rated capacitor?

A: Yes. A higher voltage rating provides additional voltage margin and does not degrade performance in a 200 V application. The capacitor will operate safely at or below its rated voltage. All 250 V substitute parts listed maintain identical capacitance, tolerance, lead spacing, and case diameter specifications.

Q: What is the difference between Direct Substitutes and Upgrade Substitutes?

A: Direct Substitutes maintain the original 200 V voltage rating. Upgrade Substitutes provide a higher 250 V voltage rating while maintaining all other mechanical and electrical compatibility. Selection depends on whether additional voltage headroom is required by the application.

Q: Are there height differences between substitute parts?

A: Yes. Most substitute parts maintain the original 0.866" (22.00 mm) height. However, UCS2D330MPD and EKXJ251ELL330MJ20S have a seated height of 0.846" (21.50 mm), which is 0.020" shorter. Verify PCB layout clearance before substitution if height is constrained.

Q: What does "Lifetime @ Temperature" mean?

A: This specification indicates the expected operational life of the capacitor under continuous operation at the stated temperature. For example, 2000 Hrs @ 85°C means the capacitor is rated for 2000 hours of continuous operation at 85°C. Higher lifetime ratings indicate longer service life under thermal stress.

Q: Can I substitute a part with lower ripple current capability?

A: No. Ripple current capability must equal or exceed the original specification. The ripple current rating determines the maximum AC current the capacitor can handle without exceeding temperature limits. Insufficient ripple current capacity will cause premature failure.

Q: What is the significance of the operating temperature range?

A: The operating temperature range specifies the minimum and maximum ambient temperatures at which the capacitor functions within specification. Extended ranges (such as -40°C ~ 105°C) provide flexibility for applications with wider environmental conditions. Verify that the substitute part's range encompasses your application's requirements.

Q: Does packaging type (Bulk vs. Cut Tape) affect electrical performance?

A: No. Packaging type affects only the physical delivery format and handling. Bulk and Cut Tape packaging contain identical components. Selection between packaging types depends on assembly process requirements and inventory management.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All parts listed in this reference are ROHS3 compliant. The original ECA-2DM330 and all substitute parts meet RoHS3 requirements.

Q: What does AEC-Q200 qualification mean?

A: AEC-Q200 is an automotive industry qualification standard for passive components. EKXJ251ELL330MJ20S carries this qualification, indicating it meets stringent reliability and performance requirements for automotive applications. This part is suitable for automotive and high-reliability industrial applications.

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