ECA-2CM3R3I Equivalent & Substitute Parts

Part Overview

The ECA-2CM3R3I is a 3.3 µF, 160 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 polar capacitive storage. The part is currently active in production status with ROHS3 compliance and REACH unaffected certification.

Substitute parts are identified when equivalent electrical and mechanical parameters align within the allowed specifications for this product category. Substitution becomes necessary when the primary part reaches end-of-life status, inventory constraints occur, or design requirements permit higher voltage ratings or extended operating temperature ranges.

Substiute Parts

ECA-2CM3R3I

Panasonic Electronic ComponentsIn Stock: 877ECA-2CM3R3I Datasheet

Current PartRFQ

ECA-2CM3R3

Panasonic Electronic ComponentsIn Stock: 3754ECA-2CM3R3 Datasheet

DirectRFQ

UVR2D3R3MED1TD

NichiconIn Stock: 4964UVR2D3R3MED1TD Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the ECA-2CM3R3I is based on the following critical parameters:

Core Electrical Parameters (Must Match or Exceed):

• Capacitance: 3.3 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage Rating: 160 V minimum (equal or higher acceptable)
• Lifetime: 2000 Hrs @ 85°C (exact match required)
• Polarization: Polar (exact match required)

Mechanical Parameters (Must Match):

• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial, Can (exact match required)
• Lead Spacing: 0.098" (2.50mm) (exact match required)
• Size / Dimension: 0.248" Dia (6.30mm) (exact match required)

Acceptable Variations:

• Operating Temperature Range: May extend beyond -25°C ~ 85°C
• Height - Seated: Minor variations acceptable within mechanical envelope constraints
• Ripple Current: May vary based on manufacturer design

Identified substitutes meet all core electrical and mechanical requirements while maintaining functional equivalence in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

ECA-2CM3R3 (Direct Substitute): This part is functionally identical to the ECA-2CM3R3I with the only difference being packaging format (Bulk versus Tape & Box). Both parts are manufactured by Panasonic, carry Active product status, and maintain identical electrical and mechanical specifications. Selection of this substitute is appropriate when packaging requirements permit bulk format and inventory availability is prioritized. Both parts maintain ROHS3 compliance and REACH unaffected certification.

UVR2D3R3MED1TD (Upgrade Substitute): This Nichicon component provides a higher voltage rating of 200 V compared to the 160 V specification of the main part, with extended operating temperature range of -40°C to 85°C. The part maintains identical capacitance, tolerance, and lifetime specifications. However, this part carries Obsolete product status. The increased height dimension of 0.492" (12.50mm) versus 0.480" (12.20mm) requires verification of mechanical clearance in the target application. Ripple current specifications are lower than the main part. This substitute is suitable only when the higher voltage rating and extended temperature range provide design benefits that offset the obsolete status and reduced ripple current capability. ROHS3 compliance and REACH unaffected certification are maintained.

Frequently Asked Questions (FAQ)

Q: Can ECA-2CM3R3 be used as a direct replacement for ECA-2CM3R3I?

A: Yes. Both parts are manufactured by Panasonic with identical electrical specifications (3.3 µF, 160 V, ±20%, 2000 Hrs @ 85°C) and mechanical dimensions. The difference is packaging format only (Tape & Box versus Bulk). Both are Active status products with ROHS3 compliance.

Q: Is UVR2D3R3MED1TD a suitable substitute?

A: UVR2D3R3MED1TD meets all core electrical requirements and maintains mechanical compatibility. The 200 V rating exceeds the 160 V requirement, and the extended temperature range (-40°C to 85°C) provides additional operating margin. However, the Obsolete product status and 0.012" (0.30mm) height increase require design verification. Ripple current is reduced compared to the main part.

Q: What are the critical parameters that must match for substitution?

A: Capacitance (3.3 µF), tolerance (±20%), lifetime (2000 Hrs @ 85°C), polarization (Polar), mounting type (Through Hole), package type (Radial, Can), lead spacing (0.098" / 2.50mm), and diameter (0.248" / 6.30mm) must remain constant. Voltage rating may be equal or higher. Operating temperature range may extend beyond the original specification.

Q: Does the height difference of 0.012" affect PCB layout?

A: The UVR2D3R3MED1TD has a maximum seated height of 0.492" compared to 0.480" for the main part. Verify clearance in the target application, particularly if components are mounted near low-profile enclosure walls or other components.

Q: Are all substitute parts RoHS and REACH compliant?

A: Yes. All listed parts (ECA-2CM3R3I, ECA-2CM3R3, and UVR2D3R3MED1TD) are ROHS3 Compliant and REACH Unaffected.