ECA-2VM4R7B Equivalent & Substitute Parts

Part Overview

The ECA-2VM4R7B is a 4.7 µF, 350 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 and ROHS3 compliant.

Substitute parts become necessary when the original ECA-2VM4R7B is unavailable, when alternative packaging formats are required, or when design specifications allow for compatible alternatives with enhanced performance characteristics such as higher voltage ratings or extended operating temperature ranges.

Substiute Parts

ECA-2VM4R7B

Panasonic Electronic ComponentsIn Stock: 955ECA-2VM4R7B Datasheet

Current PartRFQ

ECA-2VM4R7

Panasonic Electronic ComponentsIn Stock: 1288ECA-2VM4R7 Datasheet

DirectRFQ

UVK2G4R7MPD1TD

NichiconIn Stock: 2064UVK2G4R7MPD1TD Datasheet

UpgradeRFQ

UVR2V4R7MPD

NichiconIn Stock: 2914UVR2V4R7MPD Datasheet

UpgradeRFQ

UVR2V4R7MPD1TD

NichiconIn Stock: 2318UVR2V4R7MPD1TD Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECA-2VM4R7B is determined by the following criteria:

Primary Substitution Criteria (Mandatory Match):

• Capacitance: 4.7 µF
• Tolerance: ±20%
• Voltage Rating: 350 V or higher
• Mounting Type: Through Hole
• Package / Case: Radial, Can
• Lead Spacing: 0.197" (5.00mm)
• Size / Dimension: 0.394" Dia (10.00mm)

Secondary Compatibility Factors:

• Operating Temperature Range: -25°C minimum or lower
• Lifetime @ Temperature: 2000 Hrs @ 85°C or greater
• Height - Seated (Max): Physical clearance tolerance of ±0.020" (0.51mm)
• RoHS Compliance: ROHS3 Compliant

Packaging Variations Allowed:

• Tape & Box (TB) to Bulk or Cut Tape (CT) conversions are acceptable for equivalent electrical performance

Substitute parts are grouped into two categories: direct equivalents (identical electrical specifications with packaging variations) and upgrade alternatives (enhanced voltage ratings or extended temperature ranges).

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Recommended for Immediate Replacement):

ECA-2VM4R7 is the direct equivalent to ECA-2VM4R7B. Both parts are manufactured by Panasonic, share identical electrical specifications, and maintain active product status. The only difference is packaging format: ECA-2VM4R7 is supplied in Bulk format versus Tape & Box for the original part. This substitute is suitable for direct board-level replacement without design modification.

Upgrade Alternatives (For Enhanced Performance Requirements):

UVK2G4R7MPD1TD, UVR2V4R7MPD, and UVR2V4R7MPD1TD are Nichicon manufactured alternatives that provide extended operating temperature range (-40°C minimum versus -25°C). UVK2G4R7MPD1TD additionally offers 400 V rated voltage versus 350 V. These parts are marked "Not For New Designs" and should be used only when existing inventory constraints or specific application requirements justify their selection. All three maintain ROHS3 compliance and 2000-hour lifetime rating at 85°C.

Physical Clearance Consideration:

Nichicon upgrade alternatives (UVK2G4R7MPD1TD, UVR2V4R7MPD, UVR2V4R7MPD1TD) have a maximum seated height of 0.551" (14.00mm) compared to 0.531" (14.60mm) for the Panasonic parts. PCB layout must accommodate this 0.020" (0.51mm) height increase to prevent mechanical interference.

Frequently Asked Questions (FAQ)

Q: Can ECA-2VM4R7 be used as a direct replacement for ECA-2VM4R7B?

A: Yes. Both parts are electrically identical with 4.7 µF capacitance, ±20% tolerance, and 350 V rating. The difference is packaging format only. ECA-2VM4R7 is supplied in Bulk format while ECA-2VM4R7B is Tape & Box. Both are ROHS3 compliant and active products.

Q: What is the difference between the Panasonic and Nichicon substitute options?

A: Panasonic ECA-2VM4R7 maintains identical specifications to the original part. Nichicon alternatives (UVK2G4R7MPD1TD, UVR2V4R7MPD, UVR2V4R7MPD1TD) extend the operating temperature range to -40°C and are marked "Not For New Designs." UVK2G4R7MPD1TD additionally provides 400 V rating versus 350 V.

Q: Will the Nichicon parts fit in the same PCB footprint?

A: Lead spacing (0.197" / 5.00mm) and diameter (0.394" / 10.00mm) are identical. However, Nichicon parts have a maximum seated height of 0.551" (14.00mm) versus 0.531" (14.60mm) for Panasonic parts. Verify PCB clearance above the component to accommodate this 0.020" (0.51mm) difference.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. ECA-2VM4R7, UVK2G4R7MPD1TD, UVR2V4R7MPD, and UVR2V4R7MPD1TD are all ROHS3 compliant.

Q: What does "Not For New Designs" mean for the Nichicon parts?

A: This product status indicates that Nichicon has designated these parts as legacy or transitional products. They remain available and functional but are not recommended for new design implementations. Use only when existing inventory or specific application constraints require their selection.

Q: Can I use the 400 V rated UVK2G4R7MPD1TD in a 350 V application?

A: Yes. A higher voltage rating provides additional safety margin. The 400 V part is electrically compatible with 350 V circuit requirements and will function correctly.

Q: What is the difference between Cut Tape (CT) and Bulk packaging?

A: Cut Tape (CT) packaging provides components on individual tape strips suitable for automated pick-and-place assembly. Bulk packaging supplies loose components. Both formats contain identical electrical components; packaging selection depends on assembly process requirements.