UCBBJR26 BNC Connector Jack Equivalent and Substitute Parts

Part Overview

The UCBBJR26 is a BNC Connector Jack featuring a female socket configuration with 75 Ohms impedance, designed for panel mount through-hole applications with right-angle solder termination. This component is manufactured by Cinch Connectivity Solutions Trompeter and maintains Active product status with 1112 pieces currently in stock. Equivalent and substitute parts are identified to support design flexibility, supply chain alternatives, and application-specific requirements where impedance matching and mechanical compatibility are critical factors.

Substiute Parts

UCBBJR26

Cinch Connectivity Solutions TrompeterIn Stock: 1205UCBBJR26 Datasheet

Current PartRFQ

UCBBJR29

Cinch Connectivity Solutions TrompeterIn Stock: 2160UCBBJR29 Datasheet

Parametric EquivalentRFQ

031-6121

Amphenol RFIn Stock: 1380031-6121 Datasheet

Parametric EquivalentRFQ

112659-75-12

Amphenol RFIn Stock: 1389112659-75-12 Datasheet

Parametric EquivalentRFQ

5227661-1

TE Connectivity AMP ConnectorsIn Stock: 2101905227661-1 Datasheet

Parametric EquivalentRFQ

5227676-1

TE Connectivity AMP ConnectorsIn Stock: 13075227676-1 Datasheet

Parametric EquivalentRFQ

5227677-1

TE Connectivity AMP ConnectorsIn Stock: 24605227677-1 Datasheet

Parametric EquivalentRFQ

SCNBN-J1175-SORPE

Suntsu Electronics, Inc.In Stock: 1975SCNBN-J1175-SORPE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the UCBBJR26 are categorized based on the following critical electrical and mechanical parameters:

Impedance Matching: The primary classification divides substitutes into two groups:

• 75 Ohm equivalents: Parts with matching 75 Ohm impedance (UCBBJR29, 112659-75-12, SCNBN-J1175-SORPE)
• 50 Ohm alternatives: Parts with 50 Ohm impedance (031-6121, 5227661-1, 5227676-1, 5227677-1)

Mechanical Compatibility Requirements: All substitute parts maintain:

• BNC Connector Style
• Female Socket (Jack) Connector Type
• Panel Mount, Through Hole, Right Angle configuration
• Bayonet Lock fastening
• Solder termination for both contact and shield
• Single port configuration
• 4 GHz maximum frequency specification

Environmental and Compliance Factors:

• Operating temperature range alignment (critical for thermal applications)
• RoHS and REACH compliance status
• Moisture sensitivity level (all rated MSL 1)
• Voltage rating consistency (500 V across all options)

Parameter Comparison

Engineering Selection Recommendations

Direct 75 Ohm Equivalent (Recommended for Direct Substitution)

UCBBJR29 serves as the primary parametric equivalent, maintaining identical 75 Ohm impedance and mechanical specifications while offering improved inventory availability (2074 pieces). Both parts are Cinch products from the same Series 20 family with ROHS3 compliance and REACH Affected status.

112659-75-12 (Amphenol RF) provides a 75 Ohm equivalent with documented insertion loss specification (0.2dB) and 500 mating cycles rating. This part maintains Brass body material consistency with the UCBBJR26 and carries ROHS3 compliance with REACH Affected status.

SCNBN-J1175-SORPE (Suntsu Electronics) offers 75 Ohm impedance matching but carries RoHS non-compliant status with Vendor Undefined REACH status, making it unsuitable for applications requiring regulatory compliance documentation.

50 Ohm Alternatives (Impedance-Dependent Applications)

031-6121, 5227661-1, 5227676-1, and 5227677-1 all provide 50 Ohm impedance configurations. These alternatives are suitable only for applications designed for 50 Ohm transmission lines and should not be used as direct replacements in 75 Ohm systems.

Thermal Consideration: Applications requiring the full -65°C to 165°C operating range must use UCBBJR26, UCBBJR29, 031-6121, or 112659-75-12. The TE Connectivity options (5227661-1, 5227676-1, 5227677-1) are limited to -55°C to 85°C.

Frequently Asked Questions (FAQ)

Q: Can 50 Ohm BNC connectors be used in place of 75 Ohm connectors?

A: No. Impedance mismatch introduces signal reflections and degraded performance. 50 Ohm connectors are suitable only in systems designed and characterized for 50 Ohm impedance. Direct substitution of 031-6121, 5227661-1, 5227676-1, or 5227677-1 for the UCBBJR26 in a 75 Ohm system will result in electrical incompatibility.

Q: What is the critical difference between UCBBJR26 and UCBBJR29?

A: Both parts are identical in electrical and mechanical specifications with identical 75 Ohm impedance, mounting configuration, and operating temperature range. UCBBJR29 provides higher inventory levels (2074 vs. 1112 pieces) and carries ROHS3 certification compared to the UCBBJR26's RoHS Compliant status.

Q: Are there compliance implications when selecting substitutes?

A: Yes. SCNBN-J1175-SORPE is RoHS non-compliant and carries Vendor Undefined REACH status. Applications subject to EU or equivalent regulations must use ROHS3-compliant alternatives: UCBBJR29, 031-6121, 112659-75-12, 5227661-1, or 5227677-1. TE Connectivity part 5227676-1 is RoHS Compliant with REACH Unaffected status and may be suitable for specific regulatory frameworks.

Q: What does mating cycles specification indicate?

A: Mating cycles quantify connector durability under repeated connection and disconnection operations. The UCBBJR26 does not specify mating cycles. Parts with 500 mating cycles specification (031-6121, 112659-75-12, 5227661-1, 5227676-1, 5227677-1) support higher-frequency connection applications compared to unspecified ratings.

Q: How does body material affect connector performance?

A: Brass body material (UCBBJR26, UCBBJR29, 112659-75-12) provides superior electromagnetic shielding compared to Zinc body material (031-6121 uses Zinc Die Cast; TE Connectivity and Suntsu parts use Zinc). This distinction affects high-frequency performance in noise-sensitive applications.

Q: Can I use Tin-plated center contacts instead of Gold-plated?

A: Tin plating (5227661-1) provides cost reduction but may exhibit higher contact resistance and reduced corrosion resistance compared to Gold plating. This specification difference is particularly significant in low-signal-level or high-reliability applications. Gold-plated alternatives maintain superior long-term contact performance.

Q: What packaging format should I select?

A: UCBBJR26, UCBBJR29, 031-6121, 112659-75-12, 5227676-1, 5227677-1, and SCNBN-J1175-SORPE are supplied in Bulk packaging. 5227661-1 is supplied in Tube packaging. Selection depends on inventory management procedures and assembly line requirements.

Q: Is there a temperature limitation for TE Connectivity BNC connectors?

A: Yes. 5227661-1, 5227676-1, and 5227677-1 operate within -55°C to 85°C range, which is narrower than the UCBBJR26 specification (-65°C to 165°C). These parts are unsuitable for applications requiring the full extended temperature range.