ECA-0JM331B Equivalent & Substitute Parts

Part Overview

The ECA-0JM331B is a 330 µF, 6.3 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 currently active in production with ROHS3 compliance.

Substitute parts become necessary when the original component reaches end-of-life status, inventory constraints occur, or application requirements demand enhanced performance characteristics such as higher voltage ratings or extended operational lifetime at elevated temperatures.

Substiute Parts

ECA-0JM331B

Panasonic Electronic ComponentsIn Stock: 750ECA-0JM331B Datasheet

Current PartRFQ

ECA-1AM331B

Panasonic Electronic ComponentsIn Stock: 24896ECA-1AM331B Datasheet

UpgradeRFQ

EEU-FR0J331B

Panasonic Electronic ComponentsIn Stock: 5214EEU-FR0J331B Datasheet

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UVR1A331MED1TA

NichiconIn Stock: 4677UVR1A331MED1TA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECA-0JM331B is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Capacitance: 330 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Lead Spacing: 0.197" (5.00mm) (exact match required)
• Size / Dimension: 0.248" Dia (6.30mm) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial, Can (exact match required)

Allowable Variation Parameters:

• Voltage - Rated: Equal to or greater than 6.3 V
• Lifetime @ Temperature: Equal to or greater than 2000 Hrs @ 85°C
• Operating Temperature Range: Equal to or greater than -40°C ~ 85°C
• Ripple Current: Equal to or greater than specified values

Three substitute parts meet these criteria: ECA-1AM331B (voltage upgrade), EEU-FR0J331B (enhanced lifetime), and UVR1A331MED1TA (voltage upgrade with alternative manufacturer).

Parameter Comparison

Engineering Selection Recommendations

ECA-1AM331B (Panasonic): This substitute provides a voltage rating upgrade from 6.3 V to 10 V while maintaining identical capacitance, tolerance, physical dimensions, and lead spacing. All mechanical and electrical parameters remain compatible with the original design. The part is currently active in production with ROHS3 compliance and extensive inventory availability (24,798 pcs). Selection of this substitute introduces no design risk and provides enhanced voltage margin for the application circuit.

EEU-FR0J331B (Panasonic): This substitute maintains the original 6.3 V voltage rating and 330 µF capacitance while extending the operational lifetime to 5000 hours at 105°C and expanding the operating temperature range to -40°C ~ 105°C. Physical dimensions and lead spacing remain identical. The part is currently active in production with ROHS3 compliance. Height dimension increases from 0.480" to 0.500", requiring verification of available board space. Selection of this substitute is appropriate for applications requiring extended thermal performance or operation at elevated ambient temperatures.

UVR1A331MED1TA (Nichicon): This substitute provides a voltage rating upgrade to 10 V from an alternative manufacturer (Nichicon) while maintaining 330 µF capacitance and identical physical lead spacing. The part carries obsolete product status, indicating discontinued production. ROHS3 compliance is confirmed. Selection of this substitute introduces supply chain risk due to obsolete status and should be considered only when ECA-1AM331B or EEU-FR0J331B are unavailable.

Frequently Asked Questions (FAQ)

Q: Can ECA-1AM331B be used as a direct replacement for ECA-0JM331B?

A: Yes. ECA-1AM331B is mechanically and electrically compatible. It maintains identical capacitance (330 µF), tolerance (±20%), physical dimensions (0.248" diameter, 0.480" height), and lead spacing (0.197"). The voltage rating increases from 6.3 V to 10 V, which does not create compatibility issues in circuits designed for 6.3 V operation.

Q: What is the primary difference between EEU-FR0J331B and the original ECA-0JM331B?

A: EEU-FR0J331B maintains the same voltage rating (6.3 V) and capacitance (330 µF) but extends the operational lifetime from 2000 hours at 85°C to 5000 hours at 105°C. The operating temperature range expands from -40°C ~ 85°C to -40°C ~ 105°C. Height increases from 0.480" to 0.500", requiring board layout verification.

Q: Why is UVR1A331MED1TA marked as obsolete?

A: UVR1A331MED1TA carries obsolete product status, indicating that Nichicon has discontinued production. While existing inventory may be available, future procurement cannot be guaranteed. This part should be selected only when primary alternatives are unavailable.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. ECA-1AM331B, EEU-FR0J331B, and UVR1A331MED1TA all carry ROHS3 compliance certification, matching the original ECA-0JM331B.

Q: Does the packaging format affect substitution compatibility?

A: Packaging format (Tape & Box versus Cut Tape) does not affect electrical or mechanical compatibility. All substitute parts are compatible with through-hole PCB assembly processes. Packaging selection depends on procurement and assembly workflow requirements.

Q: What is the maximum height clearance requirement when considering EEU-FR0J331B?

A: EEU-FR0J331B has a maximum seated height of 0.500" (12.70mm), compared to 0.480" (12.20mm) for the original ECA-0JM331B. The 0.020" (0.50mm) increase requires verification of available vertical clearance on the PCB assembly.