Equivalent & Substitute Parts for 228SAK025M

Part Overview

The 228SAK025M is a 2200 µF, 25 V aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor in the SAK series. This radial, through-hole component is designed for general-purpose applications requiring stable capacitance and extended operational life. The part is Active in product status and ROHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical parameters align with application requirements, enabling component procurement flexibility and supply chain continuity.

Substiute Parts

228SAK025M

Cornell Dubilier / Illinois CapacitorIn Stock: 887228SAK025M Datasheet

Current PartRFQ

SK222M035ST

Cornell Dubilier Electronics (CDE)In Stock: 845SK222M035ST Datasheet

SimilarRFQ

URS1E222MHD

NichiconIn Stock: 1325URS1E222MHD Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 228SAK025M are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalent (Direct Substitution): The URS1E222MHD from Nichicon matches the critical electrical specifications: 2200 µF capacitance, 25 V rated voltage, ±20% tolerance, 2000 Hrs @ 85°C lifetime, and identical physical dimensions (0.709" Dia, 0.650" Height, 0.295" lead spacing). This part qualifies as a direct substitute when ESR performance is not a limiting design factor.

Similar Manufacturer Part (Voltage-Rated Alternative): The SK222M035ST from Cornell Dubilier Electronics (CDE) shares the same capacitance (2200 µF), tolerance (±20%), lifetime rating (2000 Hrs @ 85°C), and lead spacing (0.295"). However, it operates at a higher rated voltage (35 V instead of 25 V) and has different physical dimensions (0.630" Dia, 1.339" Height). This part is suitable for applications where higher voltage margin is acceptable and board space permits the increased height.

Substitution eligibility is determined by:

• Capacitance value match (2200 µF)
• Tolerance alignment (±20%)
• Voltage rating compatibility (equal or higher)
• Lifetime specification match (2000 Hrs @ 85°C)
• Through-hole radial package compatibility
• Physical dimensions accommodation in circuit board layout

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution (URS1E222MHD): The Nichicon URS1E222MHD is the preferred substitute when component footprint and electrical performance must remain unchanged. This part maintains identical physical dimensions, voltage rating, and capacitance specifications. Both the main part and this substitute are Active products with ROHS3 compliance and REACH Unaffected status. Ripple current ratings are equivalent within measurement tolerance (1.36 A @ 120 Hz vs. 1.35 A, and 1.564 A @ 10 kHz vs. 1.5525 A). Selection of this substitute does not require circuit redesign or board layout modification.

For Voltage-Rated Alternative (SK222M035ST): The Cornell Dubilier SK222M035ST is suitable when higher voltage margin is required or when supply constraints necessitate component substitution. The 35 V rating provides additional safety margin over the 25 V specification. This part is Active and ROHS3 compliant. However, the increased height (1.339" vs. 0.650") and reduced diameter (0.630" vs. 0.709") require verification of available board space. The lower ESR (140 mOhm vs. 151 mOhm) represents a performance improvement. This substitute is appropriate for applications where thermal or ripple current performance benefits from reduced ESR.

Both substitute parts maintain compliance with regulatory requirements (ROHS3, REACH Unaffected, EAR99 ECCN classification) and are classified as Active products with current manufacturing support.

Frequently Asked Questions (FAQ)

Q: Can the URS1E222MHD replace the 228SAK025M without any circuit modifications?

A: Yes. The URS1E222MHD is a parametric equivalent with identical capacitance (2200 µF), voltage rating (25 V), tolerance (±20%), lifetime (2000 Hrs @ 85°C), and physical dimensions. No circuit redesign is required. The part fits the same footprint and operates within equivalent electrical parameters.

Q: What is the primary difference between the URS1E222MHD and SK222M035ST substitutes?

A: The URS1E222MHD maintains the exact 25 V voltage rating and identical physical dimensions as the main part. The SK222M035ST operates at 35 V (higher voltage margin) but has different dimensions: smaller diameter (0.630" vs. 0.709") and significantly greater height (1.339" vs. 0.650"). The SK222M035ST also features lower ESR (140 mOhm vs. 151 mOhm).

Q: Can the SK222M035ST be used in a circuit designed for the 228SAK025M?

A: Electrically, yes. The 35 V rating is compatible with a 25 V application, providing additional voltage margin. However, the physical dimensions differ substantially. The increased height (1.339") may not fit in space-constrained layouts designed for the 0.650" height of the original part. Board layout verification is required before selection.

Q: Are all three parts ROHS3 compliant?

A: Yes. The 228SAK025M, URS1E222MHD, and SK222M035ST are all ROHS3 compliant and REACH Unaffected. All three parts carry EAR99 ECCN classification and share the same HTSUS code (8532.22.0020).

Q: What is the significance of the ESR specification in selecting a substitute?

A: ESR (Equivalent Series Resistance) affects ripple current handling and thermal performance. The main part specifies 151 mOhm @ 120 Hz. The URS1E222MHD does not specify ESR, while the SK222M035ST specifies 140 mOhm (lower, indicating better ripple current performance). If ESR is a critical design parameter, the SK222M035ST offers measurable improvement.

Q: Do all substitute parts have the same lead spacing?

A: Yes. All three parts—228SAK025M, URS1E222MHD, and SK222M035ST—share identical lead spacing of 0.295" (7.50 mm), ensuring compatibility with existing through-hole PCB layouts.

Q: What is the operating temperature range for all substitute options?

A: All three parts operate across the same temperature range: -40°C to 85°C. Lifetime specifications are consistent at 2000 Hrs @ 85°C for all options.