Pomona Electronics 2439-8 Binding Post Connector - Equivalent & Substitute Parts

Part Overview

The Pomona Electronics 2439-8 is a miniature knurled binding post connector with threaded and turret termination, designed for applications requiring secure electrical connections in compact form factors. This connector features a gray tin-plated brass body with polycarbonate insulation and supports a 5 A current rating at 1500V rms. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations where this connector type is specified.

Substiute Parts

2439-8

Pomona ElectronicsIn Stock: 11312439-8 Datasheet

Current PartRFQ

2382-0

Pomona ElectronicsIn Stock: 12082382-0 Datasheet

SimilarRFQ

2382-2

L3 Narda-MITEQIn Stock: 9512382-2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 2439-8 is determined by strict alignment across the following critical parameters:

• Connector Type & Form Factor: Miniature knurled binding post connector
• Termination Method: Threaded and turret termination with 8-32 thread specification
• Electrical Performance: 5 A current rating and 1500V rms voltage rating
• Physical Dimensions: Head size 0.380" OD x 0.086" L and panel thickness range 0.070" ~ 0.170"
• Material Composition: Brass body with polycarbonate insulation and nickel-plated brass nut
• Compliance: ROHS3 compliance and REACH unaffected status

The 2382-0 (Pomona Electronics) qualifies as a direct functional substitute, differing only in body plating (gold vs. tin) and color (black vs. gray), while maintaining identical electrical ratings, mechanical dimensions, termination specifications, and material properties. The 2382-2 (L3 Narda-MITEQ) does not qualify as a substitute due to fundamental category mismatch—it is an RF power divider module, not a binding post connector, and lacks the required electrical and mechanical specifications for this application.

Parameter Comparison

Engineering Selection Recommendations

The 2382-0 (Pomona Electronics) is the only qualified substitute for the obsolete 2439-8. Both parts maintain identical electrical performance (5 A at 1500V rms), mechanical dimensions (0.380" OD x 0.086" L head size), termination specifications (8-32 threaded and turret), and material properties (brass body with polycarbonate insulation and nickel-plated nut). The 2382-0 is currently in active production status with 1100 units in stock, ensuring supply continuity. Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

The only functional differences are cosmetic: the 2382-0 features gold plating on the brass body and black color, compared to the 2439-8's tin plating and gray color. These differences do not affect electrical performance, mechanical compatibility, or panel mounting characteristics. The 2382-0 is suitable for direct replacement in all applications where the 2439-8 was originally specified.

The 2382-2 is not a substitute and should not be considered for this application. It is an RF power divider module operating in the 500 MHz to 6 GHz frequency range, representing a fundamentally different product category with incompatible form factor, termination method, and electrical characteristics.

Frequently Asked Questions (FAQ)

Q: Can the 2382-0 be used as a direct replacement for the 2439-8 in existing designs?

A: Yes. The 2382-0 maintains identical electrical ratings (5 A, 1500V rms), mechanical dimensions (0.380" OD x 0.086" L), termination specifications (8-32 threaded and turret), and material composition (brass body with polycarbonate insulation). Panel mounting compatibility is preserved across the specified thickness range of 0.070" ~ 0.170". The only differences are body plating (gold vs. tin) and color (black vs. gray), which do not affect functional performance.

Q: Why is the 2382-2 listed as unsuitable?

A: The 2382-2 is an RF power divider module, not a binding post connector. It operates at microwave frequencies (500 MHz ~ 6 GHz) and has a module form factor (4.600" L x 2.500" W x 1.000" H). It lacks the threaded and turret termination, 8-32 thread specification, and miniature knurled head design required for this application. Category, form factor, and electrical specifications are fundamentally incompatible.

Q: What is the impact of the plating difference between 2439-8 (tin) and 2382-0 (gold)?

A: Both tin and gold plating on brass bodies provide corrosion resistance and electrical conductivity suitable for 5 A applications at 1500V rms. Gold plating offers superior contact resistance characteristics and is often preferred in low-signal applications, while tin plating is cost-effective for general-purpose connectors. For binding post connectors carrying 5 A at 1500V rms, both platings are functionally equivalent. Selection between them depends on application-specific requirements and cost considerations.

Q: Are there any compliance or certification differences between the 2439-8 and 2382-0?

A: No. Both parts are ROHS3 compliant and REACH unaffected. Regulatory compliance is identical, and both parts meet current environmental and hazardous substance restrictions.

Q: What is the inventory status for the 2382-0?

A: The 2382-0 is in active production with 1100 units currently in stock, ensuring reliable supply for new designs and replacement applications.