SBC9248 BNC Connector Plug 75 Ohm Crimp - Equivalent & Substitute Parts

Part Overview

The SBC9248 is a BNC connector plug manufactured by Winchester Interconnect, designed for 75-ohm coaxial cable applications. This male pin connector features crimp termination for both center contact and shield, with a bayonet lock fastening mechanism. The connector is rated for 1 GHz maximum frequency and 500 V operation, making it suitable for RF and video signal transmission applications.

The SBC9248 maintains Active product status with 636 units in current inventory. Substitute parts become necessary when Winchester Interconnect stock is unavailable, when alternative sourcing is required for supply chain resilience, or when design flexibility permits equivalent components from other manufacturers.

Substiute Parts

SBC9248

Winchester InterconnectIn Stock: 718SBC9248 Datasheet

Current PartRFQ

031-70234

Amphenol RFIn Stock: 1062031-70234 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SBC9248 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility:

• Connector style must be BNC
• Impedance must be 75 Ohms
• Frequency rating must support 1 GHz maximum operation
• Voltage rating must be 500 V or higher
• Insertion loss must not exceed 0.2 dB

Mechanical Compatibility:

• Connector type must be Plug with Male Pin configuration
• Contact termination must be Crimp
• Shield termination must be Crimp
• Fastening type must be Bayonet Lock
• Mounting type must be Free Hanging (In-Line)

Environmental & Compliance:

• Housing color Silver with Nickel finish
• Weatherproof ingress protection
• RoHS compliance required
• MSL rating 1 (Unlimited)

The substitute part 031-70234 from Amphenol RF meets all these criteria and is therefore qualified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: SBC9248 (Winchester Interconnect)

The SBC9248 is the recommended primary choice for new designs. It maintains Active product status, ensuring long-term availability and manufacturer support. RoHS compliance is confirmed, and current inventory of 636 units supports immediate procurement.

Substitute Selection: 031-70234 (Amphenol RF)

The 031-70234 qualifies as a direct electrical and mechanical equivalent. All critical parameters match the SBC9248 specification. However, this part carries "Not For New Designs" status, indicating the manufacturer is phasing out this model. The 031-70234 is suitable only for:

• Replacement or repair of existing installations
• Legacy system maintenance
• Supply chain contingency when SBC9248 is unavailable

The 031-70234 offers higher current inventory (996 units) and includes additional components (connector, contact, ferrule kit), which may provide value for high-volume repair operations. ROHS3 compliance exceeds the RoHS requirement of the primary part.

Compliance Note:

Both parts meet environmental and regulatory requirements. The 031-70234 includes REACH Affected status, which must be evaluated against end-application requirements in regulated markets.

Frequently Asked Questions (FAQ)

Q: Can the 031-70234 be used as a direct replacement for the SBC9248?

A: Yes, the 031-70234 is electrically and mechanically equivalent. All critical parameters including impedance, frequency rating, voltage rating, insertion loss, and termination methods are identical. Physical dimensions and mating interfaces are compatible.

Q: Why is the 031-70234 marked "Not For New Designs"?

A: This designation indicates the manufacturer (Amphenol RF) is discontinuing this model. While the part remains functionally equivalent and suitable for replacement applications, new product designs should specify the SBC9248 to ensure long-term availability and manufacturer support.

Q: What is the difference between RoHS and ROHS3 compliance?

A: Both certifications confirm restriction of hazardous substances. ROHS3 represents a more recent revision of the standard. The 031-70234's ROHS3 compliance exceeds the RoHS requirement and does not create compatibility issues.

Q: Does the 031-70234 kit include everything needed for installation?

A: The 031-70234 is supplied with 3 components: 1 connector, 1 contact, and 1 ferrule. The SBC9248 specification does not detail included components. Verify cable compatibility and crimping tool requirements independently for both parts.

Q: Are there cable compatibility differences between these parts?

A: The SBC9248 is specified for Belden 9248 cable. The 031-70234 supports Belden 1694, 1694A, and 9248 cables. Both parts are compatible with Belden 9248, ensuring interchangeability in existing installations using this cable type.

Q: What is the packaging difference?

A: The SBC9248 packaging is not specified in available data. The 031-70234 is supplied in Bulk packaging. Confirm packaging requirements for your procurement process.

Q: Can these connectors be used interchangeably in the same assembly?

A: Yes, within the same assembly or system. Both parts meet identical electrical specifications (75 Ohms, 1 GHz, 500 V, 0.2 dB insertion loss) and mechanical requirements (BNC plug, crimp termination, bayonet lock). No performance degradation occurs from substitution.