Pomona Electronics 3770-6 Binding Post Connector - Equivalent & Substitute Parts

Part Overview

The Pomona Electronics 3770-6 is a standard knurled binding post connector with threaded and turret termination, designed for panel-mount applications requiring secure electrical connections. This component features gold-plated copper construction with polycarbonate insulation and is rated for 15 A at 33Vrms/70VDC. The 3770-6 carries an obsolete product status, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations.

Key Parameters

Parameter	Value
Manufacturer Part Number	3770-6
Manufacturer	Pomona Electronics
Category	Banana and Tip Connectors
Description	CONN BIND POST KNURLED BLUE
Type	Standard
Head Style	Knurled
Termination	Threaded and Turret
Termination Thread	8-32
Current Rating	15 A
Voltage Rating	33Vrms/70VDC
Cross Hole Diameter	0.096" (2.43mm)
Head Size	0.440" OD (11.18mm)
Panel Thickness Range	0.070" ~ 0.250" (1.77mm ~ 6.35mm)
Material - Body	Copper
Plating - Body	Gold
Material - Insulation	Polycarbonate (PC)
Nut Material	Brass
Nut Plating	Nickel
Color	Blue
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 3770-6 is determined by strict equivalence across the following critical parameters:

Termination type: Threaded and Turret
Termination thread specification: 8-32
Current rating: 15 A
Voltage rating: 33Vrms/70VDC
Cross hole diameter: 0.096" (2.43mm)
Head size: 0.440" OD (11.18mm)
Panel thickness accommodation: 0.070" ~ 0.250" (1.77mm ~ 6.35mm)
Insulation material: Polycarbonate (PC)
Nut material and plating: Brass with Nickel plating
Plating specification: Gold
Regulatory compliance: ROHS3 Compliant

The substitute parts 3770-0 and 3770-2 share the identical base product platform (3770 series) and maintain full electrical and mechanical compatibility with the 3770-6. Variations are limited to color designation and body material composition, neither of which affects functional interchangeability in standard applications.

Parameter Comparison

Parameter	3770-6 (Main)	3770-0 (Substitute)	3770-2 (Substitute)
Manufacturer Part Number	3770-6	3770-0	3770-2
Description	CONN BIND POST KNURLED BLUE	CONN BIND POST KNURLED BLACK	CONN BIND POST KNURLED RED
Color	Blue	Black	Red
Material - Body	Copper	Tellurium Copper	Copper
Plating - Body	Gold	Gold	Gold
Head Style	Knurled	Knurled	Knurled
Termination	Threaded and Turret	Threaded and Turret	Threaded and Turret
Termination Thread	8-32	8-32	8-32
Current Rating	15 A	15 A	15 A
Voltage Rating	33Vrms/70VDC	33Vrms/70VDC	33Vrms/70VDC
Cross Hole Diameter	0.096" (2.43mm)	0.096" (2.43mm)	0.096" (2.43mm)
Head Size	0.440" OD (11.18mm)	0.440" OD (11.18mm)	0.440" OD (11.18mm)
Panel Thickness Range	0.070" ~ 0.250" (1.77mm ~ 6.35mm)	0.070" ~ 0.250" (1.77mm ~ 6.35mm)	0.070" ~ 0.250" (1.77mm ~ 6.35mm)
Material - Insulation	Polycarbonate (PC)	Polycarbonate (PC)	Polycarbonate (PC)
Nut Material	Brass	Brass	Brass
Nut Plating	Nickel	Nickel	Nickel
Product Status	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

The 3770-6 is classified as obsolete, necessitating substitution for new procurements and ongoing system support. Both 3770-0 and 3770-2 are active products with identical electrical and mechanical specifications, ensuring direct functional replacement.

Selection between substitute options should be based on application requirements:

3770-0 (Black): Recommended for applications requiring black color coding or where tellurium copper body material is specified. Active product status ensures long-term availability.
3770-2 (Red): Recommended for applications requiring red color coding or standard copper body material. Active product status ensures long-term availability.

All three parts maintain ROHS3 compliance and identical regulatory certifications. The choice between substitutes does not impact electrical performance, current capacity, voltage rating, or mechanical fit within the specified panel thickness range.

Frequently Asked Questions (FAQ)

Q: Can 3770-0 and 3770-2 be used interchangeably with 3770-6?

A: Yes. All three parts share identical electrical ratings (15 A, 33Vrms/70VDC), mechanical dimensions (8-32 thread, 0.440" OD head, 0.096" cross hole), and termination specifications. Differences are limited to color and body material composition, which do not affect functional interchangeability.

Q: What is the significance of the body material difference between 3770-6 and 3770-0?

A: The 3770-6 uses standard copper while the 3770-0 uses tellurium copper. Both materials are gold-plated and maintain identical electrical conductivity and current-carrying capacity for this application. Material selection should follow application-specific requirements or design specifications.

Q: Are all three parts ROHS3 compliant?

A: Yes. The 3770-6, 3770-0, and 3770-2 are all ROHS3 compliant, meeting current regulatory requirements for electronic component manufacturing and use.

Q: Does color selection affect electrical performance?

A: No. Color designation serves identification and circuit tracing purposes only. Electrical performance, current rating, voltage rating, and mechanical fit are identical across all three parts.

Q: What panel thickness range is supported?

A: All three parts accommodate panel thicknesses from 0.070" to 0.250" (1.77mm to 6.35mm), ensuring compatibility with standard panel mounting applications.

Q: Why is 3770-6 obsolete while 3770-0 and 3770-2 remain active?

A: Product status reflects manufacturer production and support decisions. The active status of 3770-0 and 3770-2 ensures continued availability for new designs and system maintenance, making them the preferred selection for ongoing applications.

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