PSU7230B Equivalent & Substitute Parts

Part Overview

The PSU7230B is a 72 µF, 330 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in the PSU series. This radial, can-style capacitor with QC terminals is designed for motor start applications and operates across a temperature range of -40°C to 65°C. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when inventory constraints, lead time requirements, or application-specific dimensional considerations necessitate alternative sourcing within the same electrical and mechanical specifications.

Substiute Parts

PSU7230B

Cornell Dubilier Electronics (CDE)In Stock: 751PSU7230B Datasheet

Current PartRFQ

PSU7230C

Cornell Dubilier Electronics (CDE)In Stock: 1131PSU7230C Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The PSU7230B and PSU7230C are direct substitutes within the Cornell Dubilier Electronics PSU series. Substitution eligibility is determined by the following critical parameters:

Electrical Equivalence Requirements:

• Identical capacitance value: 72 µF
• Identical voltage rating: 330 V
• Identical tolerance specification: 0%, +20%
• Identical polarization: Bi-Polar
• Identical operating temperature range: -40°C ~ 65°C

Mechanical Compatibility Requirements:

• Identical package type: Radial, Can - QC Terminals
• Identical mounting type: Chassis Mount
• Identical diameter: 1.813" (46.05mm)
• Compatible height dimensions within chassis mount constraints

Compliance Requirements:

• ROHS3 Compliant status
• Moisture Sensitivity Level 1 (Unlimited)
• REACH Unaffected designation

The PSU7230C differs from the PSU7230B only in seated height (3.375" versus 4.435"), which represents a dimensional variation within the same product family. This height difference accommodates different enclosure space constraints while maintaining full electrical and functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Both PSU7230B and PSU7230C are active production parts from Cornell Dubilier Electronics with full ROHS3 compliance and unlimited moisture sensitivity rating. Selection between these parts is determined by available board or enclosure height clearance:

PSU7230B Selection Criteria:

• Applications requiring maximum seated height of 4.435" (112.65mm)
• Designs with vertical space availability for taller component profile
• Current inventory: 678 pieces

PSU7230C Selection Criteria:

• Applications with height constraints requiring maximum seated height of 3.375" (85.73mm)
• Compact enclosure designs with limited vertical clearance
• Current inventory: 1098 pieces

Both parts deliver identical electrical performance in motor start applications across the specified -40°C to 65°C operating range. The choice between PSU7230B and PSU7230C is a mechanical fit determination based on available mounting space, not an electrical performance consideration.

Frequently Asked Questions (FAQ)

Q: Can PSU7230C replace PSU7230B in all applications?

A: PSU7230C provides complete electrical equivalence to PSU7230B. Substitution is valid when the reduced seated height of 3.375" (85.73mm) fits within the available mounting space. If the original design requires the full 4.435" (112.65mm) height, PSU7230B must be retained.

Q: Are there electrical performance differences between PSU7230B and PSU7230C?

A: No. Both parts are identical in capacitance (72 µF), voltage rating (330 V), tolerance (0%, +20%), polarization (Bi-Polar), and operating temperature range (-40°C ~ 65°C). Electrical performance in motor start applications is equivalent.

Q: What is the only difference between these two parts?

A: The seated height dimension. PSU7230B has a maximum seated height of 4.435" (112.65mm), while PSU7230C has a maximum seated height of 3.375" (85.73mm). Both maintain identical 1.813" (46.05mm) diameter and all other specifications.

Q: Are both parts RoHS compliant?

A: Yes. Both PSU7230B and PSU7230C are ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited) and REACH Unaffected status.

Q: Which part has better availability?

A: PSU7230C currently has higher inventory (1098 pieces) compared to PSU7230B (678 pieces). However, both are active production parts from Cornell Dubilier Electronics.

Q: Can I use PSU7230B in place of PSU7230C?

A: PSU7230B can replace PSU7230C only if the additional height of 1.06" (26.92mm) does not exceed available mounting space constraints. Electrical performance remains equivalent.