Pomona Electronics 2439-7 Binding Post Connector - Equivalent & Substitute Parts

Part Overview

The Pomona Electronics 2439-7 is a miniature knurled binding post connector with violet tin plating, designed for applications requiring secure threaded termination in compact form factors. This connector is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations. The part delivers 5 A current capacity at 1500V rms rating with polycarbonate insulation, suitable for laboratory and industrial test equipment applications.

Key Parameters

Parameter	Value
Manufacturer Part Number	2439-7
Manufacturer	Pomona Electronics
Category	Banana and Tip Connectors
Type	Miniature
Head Style	Knurled
Termination	Threaded and Turret
Termination Thread	8-32
Current Rating	5 A
Voltage Rating	1500V rms
Head Size	0.380" OD x 0.086" L (9.65mm x 2.18mm)
Panel Thickness	0.070" ~ 0.170" (1.78mm ~ 4.32mm)
Material - Body	Brass
Plating - Body	Tin
Material - Insulation	Polycarbonate (PC)
Nut Material	Brass
Nut Plating	Nickel
Color	Violet
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 2439-7 is determined by strict alignment across the following critical parameters:

Primary Substitution Criteria:

Connector category: Banana and Tip Connectors
Type: Miniature
Head style: Knurled
Termination method: Threaded and Turret
Termination thread specification: 8-32
Current rating: 5 A minimum
Voltage rating: 1500V rms minimum
Head size: 0.380" OD x 0.086" L
Panel thickness tolerance: 0.070" ~ 0.170"
Body material: Brass
Insulation material: Polycarbonate (PC)
Nut material: Brass with nickel plating

Acceptable Variations:

Body plating material (tin, gold, or equivalent conductive finishes)
Color designation (functional equivalence regardless of color coding)
Product status transition (obsolete to active)
Packaging format (bulk or standard)

The 2382-0 part number meets all primary substitution criteria and acceptable variations. The 2382-2 part number does not qualify as a functional substitute due to category mismatch (RF Power Divider versus Banana and Tip Connector) and incompatible electrical specifications.

Parameter Comparison

Parameter	2439-7 (Main Part)	2382-0 (Substitute)	2382-2 (Not Qualified)
Manufacturer	Pomona Electronics	Pomona Electronics	L3 Narda-MITEQ
Category	Banana and Tip Connectors	Banana and Tip Connectors	RF Power Divider
Type	Miniature	Miniature	N/A
Head Style	Knurled	Knurled	N/A
Termination	Threaded and Turret	Threaded and Turret	N/A
Termination Thread	8-32	8-32	N/A
Current Rating	5 A	5 A	N/A
Voltage Rating	1500V rms	1500V rms	N/A
Head Size	0.380" OD x 0.086" L	0.380" OD x 0.086" L	N/A
Panel Thickness	0.070" ~ 0.170"	0.070" ~ 0.170"	N/A
Body Material	Brass	Brass	N/A
Body Plating	Tin	Gold	N/A
Insulation Material	Polycarbonate (PC)	Polycarbonate (PC)	N/A
Nut Material	Brass	Brass	N/A
Nut Plating	Nickel	Nickel	N/A
Color	Violet	Black	N/A
Product Status	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	N/A

Engineering Selection Recommendations

Qualified Substitute: Pomona Electronics 2382-0

The 2382-0 is the only functionally equivalent substitute for the obsolete 2439-7. Both parts share identical mechanical dimensions, electrical ratings, and material specifications. The transition from tin to gold body plating in the 2382-0 represents an upgrade in corrosion resistance and contact reliability. The 2382-0 maintains ROHS3 compliance and is currently in active production status with confirmed inventory availability (1100 pcs).

Non-Qualified: L3 Narda-MITEQ 2382-2

The 2382-2 is categorically incompatible. This part is an RF power divider module with frequency specifications (500 MHz ~ 6 GHz) and insertion loss characteristics (1.5dB) that define a fundamentally different product category. No electrical or mechanical parameters align with binding post connector requirements. This part cannot serve as a substitute under any application scenario.

Frequently Asked Questions (FAQ)

Q: Can the 2382-0 directly replace the 2439-7 in existing assemblies?

A: Yes. The 2382-0 maintains identical head size (0.380" OD x 0.086" L), panel thickness tolerance (0.070" ~ 0.170"), termination thread (8-32), current rating (5 A), and voltage rating (1500V rms). Mechanical and electrical interchangeability is confirmed.

Q: Does the change from tin to gold plating affect performance?

A: No performance degradation occurs. Gold plating provides enhanced corrosion resistance and improved contact reliability compared to tin plating. This represents a material upgrade suitable for long-term reliability applications.

Q: Why is color different between 2439-7 and 2382-0?

A: Color designation (violet versus black) is a functional identifier only and does not affect electrical or mechanical performance. Both parts serve identical circuit functions.

Q: Is the 2382-0 suitable for new designs?

A: Yes. The 2382-0 is in active production status with confirmed inventory. ROHS3 compliance and REACH unaffected status support use in new product development.

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

A: 1100 pcs of new original stock are available in bulk packaging.

Q: Can the 2382-2 be used as an alternative?

A: No. The 2382-2 is an RF power divider module and is not a binding post connector. Category, electrical specifications, and mechanical form factor are incompatible with 2439-7 applications.

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