SCRN243R Film Capacitor Equivalent & Substitute Parts

Part Overview

The SCRN243R is a 3 µF film capacitor rated for 1500Vpk AC operation, manufactured by Cornell Dubilier Electronics (CDE) in the SCR series. This component features a paper metallized dielectric with radial, can-style packaging and threaded male termination for chassis mount applications requiring a holder or bracket.

The SCRN243R is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing maintenance, repair, and legacy system requirements where this capacitor specification remains functionally essential.

Substiute Parts

SCRN243R

Cornell Dubilier Electronics (CDE)In Stock: 875SCRN243R Datasheet

Current PartRFQ

SCRN243R-F

Cornell Dubilier Electronics (CDE)In Stock: 918SCRN243R-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCRN243R is determined by strict equivalence across the following critical parameters:

• Capacitance Value: 3 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage Rating (AC): 1500Vpk (1.5KVPK) (exact match required)
• Dielectric Material: Paper, Metallized (exact match required)
• Operating Temperature Range: -40°C to 80°C (exact match required)
• Package / Case Style: Radial, Can (exact match required)
• Mounting Type: Chassis Mount, Requires Holder/Bracket (exact match required)
• Termination Type: Threaded, Male (exact match required)
• Lead Spacing: 1.380" (35.05mm) (exact match required)
• Physical Dimensions: 2.910" L x 1.910" W (73.91mm x 48.51mm), Lip; Height 4.310" (109.47mm) (exact match required)

Only parts meeting all these criteria are classified as direct substitutes. The SCRN243R-F qualifies as a direct equivalent substitute based on complete parameter alignment.

Parameter Comparison

Engineering Selection Recommendations

The SCRN243R-F is a direct functional equivalent to the SCRN243R. Both parts share identical electrical and mechanical specifications across all critical parameters: 3 µF capacitance, ±10% tolerance, 1500Vpk AC voltage rating, paper metallized dielectric, operating temperature range of -40°C to 80°C, radial can package style, threaded male termination, and identical physical dimensions and lead spacing.

The primary distinction between these parts is product status and regulatory compliance. The SCRN243R is obsolete, while the SCRN243R-F is active and carries ROHS3 compliance certification. For new designs, maintenance programs, or applications requiring current regulatory compliance, the SCRN243R-F is the appropriate selection. Both parts are available in inventory.

Frequently Asked Questions (FAQ)

Q: Can SCRN243R-F be used as a direct replacement for SCRN243R in existing assemblies?

A: Yes. The SCRN243R-F is electrically and mechanically identical to the SCRN243R across all specified parameters. Physical dimensions, lead spacing, termination type, and mounting requirements are identical, enabling direct substitution in existing chassis mount applications.

Q: What is the difference between SCRN243R and SCRN243R-F?

A: The SCRN243R-F differs from the SCRN243R in product status and regulatory compliance. The SCRN243R is obsolete and RoHS non-compliant. The SCRN243R-F is active and ROHS3 compliant. All electrical and mechanical specifications are identical.

Q: Are there any compatibility concerns when substituting SCRN243R-F for SCRN243R?

A: No compatibility concerns exist. Both parts are manufactured by Cornell Dubilier Electronics in the SCR series with identical specifications. The radial can package, threaded male termination, lead spacing of 1.380" (35.05mm), and chassis mount configuration with holder/bracket requirement are identical.

Q: What applications are these capacitors suitable for?

A: Both the SCRN243R and SCRN243R-F are specified for commutation, high frequency switching, and high pulse DV/DT applications. The 1500Vpk AC rating and paper metallized dielectric support these demanding electrical environments.

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

A: Both parts operate across a temperature range of -40°C to 80°C, providing stable performance across industrial and commercial temperature environments.

Q: Does the SCRN243R-F meet current regulatory requirements?

A: Yes. The SCRN243R-F carries ROHS3 compliance certification and is REACH unaffected. The original SCRN243R is RoHS non-compliant. For applications requiring current regulatory compliance, the SCRN243R-F is the appropriate selection.