SCRN234R Film Capacitor Equivalent & Substitute Parts

Part Overview

The SCRN234R is a 2 µF film capacitor rated for 1000Vpk AC operation, manufactured by Cornell Dubilier Electronics (CDE). This component features a paper metallized dielectric in a radial can configuration with threaded male termination, designed for chassis mount applications requiring a holder or bracket. The part is classified as obsolete, making identification of suitable substitutes essential for ongoing system maintenance and repair operations. The primary reason for seeking alternatives is the discontinued status of the original part number, which necessitates sourcing from active product lines that maintain identical electrical and mechanical specifications.

Substiute Parts

SCRN234R

Cornell Dubilier Electronics (CDE)In Stock: 781SCRN234R Datasheet

Current PartRFQ

SCRN234R-F

Cornell Dubilier Electronics (CDE)In Stock: 1032SCRN234R-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCRN234R is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must match the following criteria:

Electrical Parameters:

• Capacitance value: 2 µF (exact match)
• Tolerance: ±10% (exact match)
• Voltage rating: 1000Vpk AC (exact match)
• Dielectric material: Paper, Metallized (exact match)
• Operating temperature range: -40°C to +80°C (exact match)

Mechanical Parameters:

• Package configuration: Radial, Can (exact match)
• Mounting type: Chassis Mount, Requires Holder/Bracket (exact match)
• Physical dimensions: 2.160" L × 1.310" W with 3.190" seated height (exact match)
• Lead spacing: 0.810" (exact match)
• Termination: Threaded, Male (exact match)

Application Compatibility:

• Commutation circuits
• High frequency switching applications
• High pulse and DV/DT environments

Only parts meeting all specified parameters are classified as direct substitutes. Packaging format differences (Bulk vs. standard packaging) do not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The SCRN234R-F is a direct functional and mechanical equivalent to the SCRN234R. Selection between these parts should be based on the following criteria:

For New Designs and Ongoing Production: Use SCRN234R-F. This part is classified as Active product status, ensuring long-term availability and supply chain continuity. The SCRN234R-F meets ROHS3 compliance requirements, providing regulatory advantage for systems subject to environmental directives.

For Legacy System Maintenance: Either part is electrically and mechanically interchangeable. The SCRN234R remains available in inventory (711 units) for immediate replacement needs. However, SCRN234R-F is preferred for future-proofing due to its active status and improved compliance posture.

Compliance Considerations: The SCRN234R-F offers ROHS3 compliance, whereas the original SCRN234R is RoHS non-compliant. Both parts maintain REACH Unaffected status and carry EAR99 export classification. Systems requiring RoHS compliance should prioritize SCRN234R-F.

Packaging and Procurement: SCRN234R-F is supplied in Bulk packaging format. This does not affect electrical or mechanical performance and is standard for active product lines. Inventory availability is higher for SCRN234R-F (928 units vs. 711 units), supporting consistent procurement cycles.

Frequently Asked Questions (FAQ)

Q: Can SCRN234R-F be used as a direct replacement for SCRN234R in existing assemblies?

A: Yes. SCRN234R-F is a direct substitute with identical electrical specifications (2 µF, ±10%, 1000Vpk AC), dielectric material (Paper, Metallized), and mechanical configuration (Radial, Can, Threaded Male termination). Physical dimensions, lead spacing, and mounting requirements are identical. No circuit modifications or mechanical rework is required.

Q: What is the difference between SCRN234R and SCRN234R-F?

A: The primary differences are product status and regulatory compliance. SCRN234R is classified as Obsolete, while SCRN234R-F is Active. SCRN234R-F meets ROHS3 compliance standards, whereas SCRN234R is RoHS non-compliant. All electrical and mechanical parameters are identical.

Q: Are there any temperature or voltage derating considerations when substituting these parts?

A: No. Both parts operate across the identical temperature range (-40°C to +80°C) and carry the same voltage rating (1000Vpk AC). Operating conditions and derating curves remain unchanged.

Q: Does the Bulk packaging format of SCRN234R-F affect its performance or reliability?

A: No. Packaging format is a procurement and logistics consideration only. Bulk packaging does not alter electrical performance, reliability, or mechanical fit. The component itself is identical to standard packaging formats.

Q: Which part should be selected for new equipment designs?

A: SCRN234R-F is the recommended choice for new designs. Active product status ensures availability throughout the design lifecycle and into production. ROHS3 compliance provides regulatory alignment with current environmental standards.

Q: Can SCRN234R be used in applications requiring RoHS compliance?

A: No. SCRN234R is RoHS non-compliant. Systems subject to RoHS directives must use SCRN234R-F, which meets ROHS3 compliance requirements.

Q: Are there any lead time or availability differences between these parts?

A: Both parts are currently in stock. SCRN234R-F has higher inventory availability (928 units vs. 711 units) and benefits from Active product status, supporting more predictable long-term availability. SCRN234R inventory is finite due to its Obsolete classification.

Q: What applications are these capacitors suitable for?

A: Both parts are rated for Commutation circuits, High Frequency Switching applications, and High Pulse/DV/DT environments. The paper metallized dielectric and 1000Vpk rating support these demanding applications without modification.