EEU-TA1H331B Equivalent & Substitute Parts

Part Overview

The EEU-TA1H331B is a 330 µF, 50 V aluminum electrolytic capacitor in radial configuration manufactured by Panasonic Electronic Components. This component is rated for 2000 hours at 125°C and is designed for general-purpose applications requiring through-hole mounting. The part is currently active in production with ROHS3 compliance and is available in Cut Tape packaging.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained within the specified tolerances, allowing for direct functional replacement in circuit designs while accommodating packaging and supplier availability variations.

Substiute Parts

EEU-TA1H331B

Panasonic Electronic ComponentsIn Stock: 776EEU-TA1H331B Datasheet

Current PartRFQ

EEU-TA1H331

Panasonic Electronic ComponentsIn Stock: 983EEU-TA1H331 Datasheet

DirectRFQ

UBW1H331MHD1TO

NichiconIn Stock: 1230UBW1H331MHD1TO Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EEU-TA1H331B is determined by the following critical parameters:

Electrical Equivalence Requirements:

• Capacitance: 330 µF (exact match required)
• Voltage Rating: 50 V (minimum, equal or higher acceptable)
• Tolerance: ±20% (matching tolerance class)
• Ripple Current @ 100 kHz: 1.33 A (minimum specification)
• Impedance: 70 mOhms (matching specification)

Mechanical Compatibility Requirements:

• Package Type: Radial, Can (exact match required)
• Mounting Type: Through Hole (exact match required)
• Lead Spacing: 0.197" (5.00 mm) (exact match required)
• Physical Diameter: 0.492" (12.50 mm) (exact match required)
• Height (Seated Max): 0.866" (22.00 mm) (exact match required)

Compliance Requirements:

• RoHS Status: ROHS3 Compliant (minimum requirement)
• Product Status: Active (current production)

Parts meeting all electrical, mechanical, and compliance criteria are classified as direct substitutes. Packaging format variations (Cut Tape vs. Bulk) do not affect functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

EEU-TA1H331 (Direct Substitute): This part is a direct functional equivalent to the EEU-TA1H331B, differing only in packaging format (Bulk vs. Cut Tape). Both parts are manufactured by Panasonic Electronic Components, share identical electrical specifications, mechanical dimensions, and thermal ratings. Selection between these two is determined by procurement and assembly requirements rather than technical performance.

UBW1H331MHD1TO (Upgrade Substitute): This Nichicon component maintains all critical electrical and mechanical parameters required for functional equivalence. The UBW1H331MHD1TO offers extended operating temperature range (-55°C to 135°C vs. -40°C to 125°C) and increased lifetime rating (3000 hours at 135°C vs. 2000 hours at 125°C). This part is designated for automotive applications and carries ROHS3 compliance. Selection of this upgrade substitute is appropriate when enhanced thermal performance or extended operational life is required by system specifications.

Frequently Asked Questions (FAQ)

Q: Can EEU-TA1H331 be used as a direct replacement for EEU-TA1H331B?

A: Yes. Both parts are electrically and mechanically identical. The difference is packaging format only—EEU-TA1H331B is supplied in Cut Tape, while EEU-TA1H331 is supplied in Bulk. Functional performance in the circuit is equivalent.

Q: What are the key differences between EEU-TA1H331B and UBW1H331MHD1TO?

A: The UBW1H331MHD1TO offers superior thermal performance with an extended operating temperature range (-55°C to 135°C vs. -40°C to 125°C) and longer lifetime rating (3000 hours at 135°C vs. 2000 hours at 125°C). All electrical specifications and mechanical dimensions remain identical. The UBW1H331MHD1TO is rated for automotive applications.

Q: Are all three parts mechanically interchangeable?

A: Yes. All three parts share identical lead spacing (0.197" / 5.00 mm), physical diameter (0.492" / 12.50 mm), and height (0.866" / 22.00 mm). They are directly interchangeable on through-hole PCB layouts without modification.

Q: What compliance certifications apply to these parts?

A: All three parts are ROHS3 compliant. EEU-TA1H331B and EEU-TA1H331 are REACH Unaffected. UBW1H331MHD1TO is REACH Affected. All parts carry ECCN classification EAR99.

Q: Can UBW1H331MHD1TO be used in general-purpose applications?

A: Yes. While UBW1H331MHD1TO is designated for automotive applications, it meets all electrical and mechanical requirements for general-purpose use. The enhanced thermal specifications provide additional design margin in any application.

Q: How do ripple current specifications affect substitution?

A: All three parts maintain identical ripple current ratings at 100 kHz (1.33 A) and 120 Hz (864.5 mA for Panasonic parts; 665 mA for Nichicon). These specifications determine the maximum AC current the capacitor can safely handle. Substitution is valid when ripple current requirements do not exceed these ratings.