BJ770 Equivalent & Substitute Parts

Part Overview

The BJ770 is a TRB twinaxial/triaxial connector jack manufactured by Cinch Connectivity Solutions Trompeter. This female socket connector features a non-constant impedance design with solder cup termination and panel mount configuration via bulkhead rear side nut. The connector operates at frequencies up to 500 MHz with a voltage rating of 400 V and supports 500 mating cycles. The BJ770 is classified as an active product with ROHS3 compliance and REACH affected status. Identifying equivalent and substitute parts is necessary for supply chain continuity, design flexibility, and component availability across manufacturing and repair operations.

Substiute Parts

BJ770

Cinch Connectivity Solutions TrompeterIn Stock: 1765BJ770 Datasheet

Current PartRFQ

BJ77

Cinch Connectivity Solutions TrompeterIn Stock: 1547BJ77 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The BJ770 has one parametric equivalent: BJ77. This substitution is valid based on identical alignment across all critical electrical and mechanical parameters that define functional compatibility for TRB twinaxial/triaxial connector jacks. The substitute relationship is established through matching specifications in the following key parameters:

• Connector style and type (TRB, twinaxial/triaxial jack, female socket)
• Contact and shield termination methods (solder cup and solder tag)
• Mounting configuration (panel mount, bulkhead rear side nut, bayonet lock)
• Electrical performance (500 MHz maximum frequency, 400 V voltage rating, non-constant impedance)
• Material composition and finishes (beryllium copper center contact with gold plating, brass body with nickel finish)
• Environmental and operational ratings (-65°C to 165°C operating temperature, 500 mating cycles)
• Regulatory compliance (ROHS3 compliant, REACH affected)

Parameter Comparison

Engineering Selection Recommendations

Both BJ770 and BJ77 are active products with identical regulatory compliance profiles. The BJ770 carries 1663 pieces in current inventory, while BJ77 has 1469 pieces available. Both parts maintain ROHS3 compliance and REACH affected status with EAR99 export classification. Selection between these parts should be based on inventory availability and supply chain requirements, as all electrical, mechanical, and environmental specifications are equivalent. Both connectors are suitable for applications requiring TRB twinaxial/triaxial panel mount jacks with solder cup termination operating up to 500 MHz.

Frequently Asked Questions (FAQ)

Q: Can BJ77 be used as a direct replacement for BJ770? A: Yes. BJ77 is a parametric equivalent with identical specifications across all electrical, mechanical, and environmental parameters. Direct substitution is valid for applications requiring TRB twinaxial/triaxial connector jacks with the specified performance characteristics.

Q: What are the critical parameters that define substitution eligibility for this connector type? A: Substitution eligibility is determined by matching connector style (TRB twinaxial/triaxial), connector type (jack, female socket), termination method (solder cup), mounting configuration (panel mount bulkhead), fastening type (bayonet lock), frequency rating (500 MHz), impedance classification (non-constant), voltage rating (400 V), operating temperature range (-65°C to 165°C), and material specifications (beryllium copper center contact with gold plating, brass body with nickel finish).

Q: Are there any differences in packaging or included components between BJ770 and BJ77? A: Both parts are supplied in bulk packaging and include identical components: 1 connector, 1 nut, and 1 washer per unit.

Q: What is the significance of the "Extended Insulation, Three Lug" feature? A: This feature indicates the connector includes extended insulation coverage and three lugs for mechanical support and electrical connection, which are standard for this TRB connector series.

Q: Do both parts meet the same regulatory and compliance standards? A: Yes. Both BJ770 and BJ77 are ROHS3 compliant, REACH affected, classified as EAR99 for export control, and carry MSL 1 (unlimited) moisture sensitivity rating.