Pomona Electronics 3770-5 Binding Post Connector Equivalent & Substitute Parts

Part Overview

The Pomona Electronics 3770-5 is a standard knurled binding post connector with green insulation, designed for threaded and turret termination applications. This connector features gold-plated copper construction with a 15 A current rating and 33Vrms/70VDC voltage rating, suitable for panel thicknesses between 0.070" and 0.250". The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing procurement and system maintenance.

Substiute Parts

3770-5

Pomona ElectronicsIn Stock: 11633770-5 Datasheet

Current PartRFQ

3770-0

Pomona ElectronicsIn Stock: 12793770-0 Datasheet

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3770-2

Pomona ElectronicsIn Stock: 10083770-2 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the 3770-5 is based on electrical and mechanical compatibility within the Pomona Electronics 3770 series binding post connector family. The substitute parts maintain identical specifications across the following critical parameters:

• Termination type: 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"
• Insulation material: Polycarbonate (PC)
• Nut material: Brass with nickel plating
• Plating: Gold
• RoHS compliance: ROHS3 Compliant

The primary difference among substitute parts is the color designation and body material composition, which do not affect electrical or mechanical performance. Substitute parts 3770-0 (black) and 3770-2 (red) are functionally equivalent to the 3770-5 (green) for applications requiring standard knurled binding post connectors with identical electrical ratings and mechanical dimensions.

Parameter Comparison

Engineering Selection Recommendations

The 3770-5 is classified as obsolete, requiring substitution for new procurement. Both 3770-0 and 3770-2 are active products within the Pomona Electronics 3770 series and provide direct functional equivalence.

Selection between substitute parts should be based on application requirements:

• 3770-0 (Black): Active product status with tellurium copper body material. Suitable for applications where black color coding is required or preferred for circuit identification.

• 3770-2 (Red): Active product status with standard copper body material. Suitable for applications where red color coding is required or preferred for circuit identification.

Both substitute parts maintain full compliance with ROHS3 and REACH requirements. Electrical performance, mechanical dimensions, and termination specifications are identical to the obsolete 3770-5. Selection between 3770-0 and 3770-2 is determined by color coding requirements and application-specific circuit identification standards.

Frequently Asked Questions (FAQ)

Q: Can 3770-0 or 3770-2 be used as direct replacements for the obsolete 3770-5?

A: Yes. Both 3770-0 and 3770-2 are functionally equivalent to 3770-5. All three parts share identical electrical ratings (15 A, 33Vrms/70VDC), mechanical dimensions (0.440" OD head, 0.096" cross hole diameter), termination specifications (8-32 threaded and turret), and insulation materials (polycarbonate). The difference is color designation only.

Q: What is the difference between 3770-0 and 3770-2?

A: The primary difference is color: 3770-0 is black and 3770-2 is red. Additionally, 3770-0 uses tellurium copper for the body material, while 3770-2 uses standard copper. Both materials are gold-plated and provide equivalent electrical performance. Selection depends on color coding requirements for your application.

Q: Are there any compatibility concerns when substituting the 3770-5 with 3770-0 or 3770-2?

A: No compatibility concerns exist. Both substitute parts are designed for identical panel thickness ranges (0.070" to 0.250"), use the same 8-32 termination thread, and maintain the same current and voltage ratings. Mechanical fit and electrical performance are equivalent.

Q: Do all three parts meet the same regulatory compliance standards?

A: Yes. The 3770-5, 3770-0, and 3770-2 are all ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8536.90.4000.

Q: Why is the 3770-5 obsolete while 3770-0 and 3770-2 remain active?

A: Product status reflects manufacturer production and support decisions. The 3770-0 and 3770-2 remain in active production, ensuring availability for new designs and ongoing procurement. The 3770-5 (green) has been discontinued, making substitution necessary for applications previously using this color variant.