SCRN229R Film Capacitor Equivalent & Substitute Parts

Part Overview

The SCRN229R is a 25 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE), rated for 600Vpk AC operation with paper metallized dielectric construction. This component is designed for radial, chassis-mount applications requiring threaded male termination and is classified as obsolete in current product lines.

Due to its obsolete status, identifying equivalent substitute parts is essential for system maintenance, repair, and retrofit applications. The substitute part maintains identical electrical and mechanical specifications while offering improved product status and compliance certifications.

Substiute Parts

SCRN229R

Cornell Dubilier Electronics (CDE)In Stock: 990SCRN229R Datasheet

Current PartRFQ

SCRN229R-F

Cornell Dubilier Electronics (CDE)In Stock: 844SCRN229R-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SCRN229R is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must match the following criteria:

Electrical Parameters (Must Match Exactly):

• Capacitance: 25 µF
• Tolerance: ±10%
• Voltage Rating (AC): 600Vpk
• Dielectric Material: Paper, Metallized
• Operating Temperature Range: -40°C to 80°C

Mechanical Parameters (Must Match Exactly):

• Mounting Type: Chassis Mount, Requires Holder/Bracket
• Package / Case: Radial, Can
• Physical Dimensions: 3.660" L x 1.970" W (92.96mm x 50.04mm), Lip
• Height (Seated Max): 6.810" (172.97mm)
• Termination Type: Threaded, Male
• Lead Spacing: 1.380" (35.05mm)

Application Compatibility:

• Commutation, High Frequency Switching, High Pulse DV/DT applications

The SCRN229R-F qualifies as a direct substitute based on complete parameter equivalence across all electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

SCRN229R-F is the direct substitute for SCRN229R.

The SCRN229R-F provides complete electrical and mechanical equivalence to the obsolete SCRN229R. Selection of the SCRN229R-F is based on the following factors:

1. Product Status: The SCRN229R-F maintains active product status, ensuring continued availability and supply chain reliability compared to the obsolete SCRN229R.

2. Compliance Certification: The SCRN229R-F is ROHS3 compliant, whereas the SCRN229R is RoHS non-compliant. This compliance improvement is significant for applications subject to environmental regulations and procurement standards.

3. Electrical Equivalence: All electrical parameters are identical, including 25 µF capacitance, ±10% tolerance, and 600Vpk AC voltage rating.

4. Mechanical Compatibility: Physical dimensions, mounting configuration, termination type, and lead spacing are identical, ensuring direct mechanical interchangeability without modification to existing mounting hardware or circuit board layouts.

5. Application Suitability: Both parts are rated for identical applications including commutation, high frequency switching, and high pulse DV/DT operations.

Frequently Asked Questions (FAQ)

Q: Can SCRN229R-F be used as a direct replacement for SCRN229R in existing assemblies?

A: Yes. The SCRN229R-F is electrically and mechanically equivalent to the SCRN229R. All electrical parameters (capacitance, tolerance, voltage rating, dielectric material, temperature range) and mechanical parameters (dimensions, mounting type, termination, lead spacing) are identical. No circuit modifications or mechanical rework is required.

Q: What is the primary difference between SCRN229R and SCRN229R-F?

A: The primary differences are product status and compliance certification. The SCRN229R is obsolete and RoHS non-compliant, while the SCRN229R-F is an active product with ROHS3 compliance. Both parts are otherwise electrically and mechanically identical.

Q: Are there any packaging differences between these parts?

A: The SCRN229R is supplied in standard packaging, while the SCRN229R-F is supplied in bulk packaging. Both use identical radial can construction with threaded male termination. The packaging difference does not affect electrical or mechanical performance.

Q: What applications are these capacitors suitable for?

A: Both the SCRN229R and SCRN229R-F are rated for commutation, high frequency switching, and high pulse DV/DT applications. The 600Vpk AC rating and paper metallized dielectric construction support these demanding switching and pulse applications.

Q: Is the SCRN229R-F compatible with existing mounting brackets and holders?

A: Yes. The SCRN229R-F maintains identical physical dimensions (3.660" L x 1.970" W, 6.810" height) and lead spacing (1.380") as the SCRN229R. Both require chassis mount configuration with holder/bracket support. Existing mounting hardware is fully compatible.

Q: What is the operating temperature range for these capacitors?

A: Both the SCRN229R and SCRN229R-F operate across the temperature range of -40°C to 80°C. This range is suitable for industrial and commercial applications with moderate thermal variation.

Q: Are there any compliance or regulatory considerations when substituting SCRN229R with SCRN229R-F?

A: The SCRN229R-F offers improved compliance status with ROHS3 certification, whereas the SCRN229R is RoHS non-compliant. Both parts maintain REACH Unaffected status and EAR99 export classification. For applications subject to RoHS requirements, the SCRN229R-F is the appropriate selection.