SEK332M025ST Equivalent & Substitute Parts

Part Overview

The SEK332M025ST is a 3300 µF, 25 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a radial, can package configuration. This component is designed for general-purpose applications requiring stable capacitance performance across extended operating temperature ranges. The part maintains Active product status with 684 units currently in stock. Equivalent and substitute parts are identified to provide procurement flexibility, ensure supply chain continuity, and support design requirements when the primary part becomes unavailable or when alternative sourcing is preferred.

Substiute Parts

SEK332M025ST

Cornell Dubilier Electronics (CDE)In Stock: 764SEK332M025ST Datasheet

Current PartRFQ

ECA-1EHG332

Panasonic Electronic ComponentsIn Stock: 3973ECA-1EHG332 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SEK332M025ST is determined by strict alignment of the following electrical and mechanical parameters:

Electrical Parameters:

• Capacitance: 3300 µF (exact match required)
• Voltage Rating: 25 V (exact match required)
• Tolerance: ±20% (exact match required)
• Operating Temperature Range: -55°C to 105°C (exact match required)
• Lifetime @ Temperature: 2000 Hrs @ 105°C (exact match required)

Mechanical Parameters:

• Lead Spacing: 0.295" (7.50 mm) (exact match required)
• Size / Dimension: 0.630" Dia (16.00 mm) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial, Can (exact match required)

Compliance Parameters:

• RoHS Status: ROHS3 Compliant (exact match required)

The substitute part ECA-1EHG332 meets all specified electrical and mechanical parameters, confirming direct substitution capability.

Parameter Comparison

Engineering Selection Recommendations

The ECA-1EHG332 manufactured by Panasonic Electronic Components is a direct electrical and mechanical substitute for the SEK332M025ST. Both components are Active products with ROHS3 compliance and REACH Unaffected status, confirming regulatory alignment for current and future applications.

The substitute part exhibits a reduced seated height of 1.063" (27.00 mm) compared to the primary part's 1.260" (32.00 mm). This dimensional difference provides additional design flexibility in space-constrained applications while maintaining all critical electrical parameters and mechanical interface requirements.

Both components are rated for general-purpose applications and support identical operating temperature ranges and lifetime specifications. Selection between these parts should be based on availability, lead time, cost considerations, and specific board layout constraints related to component height.

Frequently Asked Questions (FAQ)

Q: Can the ECA-1EHG332 be used as a direct replacement for the SEK332M025ST in existing designs?

A: Yes. The ECA-1EHG332 matches all critical electrical parameters (capacitance, voltage rating, tolerance, operating temperature range, and lifetime specification) and mechanical parameters (lead spacing, diameter, mounting type, and package configuration). Both components are ROHS3 compliant and REACH Unaffected.

Q: What is the significance of the height difference between these two parts?

A: The ECA-1EHG332 has a maximum seated height of 1.063" (27.00 mm), while the SEK332M025ST measures 1.260" (32.00 mm). This 0.197" (5.00 mm) reduction in height may be advantageous in applications with vertical space constraints. PCB layout and clearance requirements should be evaluated to confirm compatibility.

Q: Are there any electrical performance differences between these substitutes?

A: Both components share identical capacitance, voltage rating, tolerance, operating temperature range, and lifetime specifications. The ECA-1EHG332 provides ripple current ratings at low frequency (1.4 A @ 120 Hz) and high frequency (1.61 A @ 100 kHz), which are not specified for the SEK332M025ST. The ESR of the SEK332M025ST is specified at 80 mOhm; the ECA-1EHG332 ESR is not provided in the available data.

Q: What compliance certifications apply to both parts?

A: Both the SEK332M025ST and ECA-1EHG332 are ROHS3 compliant and REACH Unaffected. Both carry EAR99 export classification and share the same HTSUS code (8532.22.0020).

Q: Are there inventory considerations when selecting between these parts?

A: The ECA-1EHG332 has 3938 units in stock, while the SEK332M025ST has 684 units available. Procurement timelines and supply chain requirements may influence part selection.