TE Connectivity AMP Connectors 1-1546283-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 1-1546283-2 is a 21-circuit barrier block terminal connector with 0.325" (8.26mm) pitch spacing, designed for through-hole mounting applications. This connector features screws with captive plate termination on the top and PC pin termination on the bottom, rated for 20A at 150V with wire gauge compatibility of 12-22 AWG.

The 1-1546283-2 is classified as obsolete. Locating equivalent substitute parts is necessary to maintain design compatibility, ensure continued availability, and support ongoing production or repair requirements for systems utilizing this connector configuration.

Substiute Parts

1-1546283-2

TE Connectivity AMP ConnectorsIn Stock: 9221-1546283-2 Datasheet

Current PartRFQ

1546939-9

TE Connectivity AMP ConnectorsIn Stock: 12591546939-9 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 1-1546283-2 with the active part 1546939-9 is valid based on the following electrical and mechanical parameter alignment:

Matching Parameters:

• Terminal block type: Barrier Block
• Number of circuits: 21
• Pitch spacing: 0.325" (8.26mm)
• Current rating: 20A
• Voltage rating: 150V
• Wire gauge range: 12-22 AWG
• Top termination: Screws with Captive Plate
• Bottom termination: PC Pin
• Barrier type: 3 Wall (Tri)
• Operating temperature: 105°C
• Insulation material: Polyamide (PA), Nylon
• Flammability rating: UL94 V-0

The 1546939-9 maintains functional and electrical equivalence to the 1-1546283-2 across all critical parameters. The substitute part is currently in active production status with higher inventory availability.

Parameter Comparison

Engineering Selection Recommendations

The 1546939-9 is the direct substitute for the obsolete 1-1546283-2. Selection of the 1546939-9 is based on the following engineering criteria:

Product Status: The 1546939-9 is in active production status, ensuring continued availability and supply chain reliability. The original 1-1546283-2 is obsolete and no longer manufactured.

Compliance and Certifications: Both parts maintain identical UL94 V-0 flammability ratings and equivalent electrical safety classifications (ECCN: EAR99, HTSUS: 8536.90.4000). The 1546939-9 carries RoHS Compliant certification, meeting current regulatory requirements.

Electrical and Mechanical Equivalence: All critical electrical parameters (current rating, voltage rating, wire gauge compatibility) and mechanical parameters (pitch, circuit count, termination type, barrier configuration) are identical between the two parts.

Inventory and Availability: The 1546939-9 has higher inventory availability (1150 pcs) compared to the original part (861 pcs), supporting immediate procurement for new designs or replacement applications.

Frequently Asked Questions (FAQ)

Q: Can the 1546939-9 be used as a direct replacement for the 1-1546283-2 in existing designs?

A: Yes. The 1546939-9 maintains electrical and mechanical equivalence across all specified parameters, including circuit count, pitch spacing, current and voltage ratings, wire gauge compatibility, and termination configuration. Both parts are from the same manufacturer series (#4, Buchanan) and share identical barrier block architecture.

Q: What are the key differences between the 1-1546283-2 and 1546939-9?

A: The primary differences are product status and packaging. The 1-1546283-2 is obsolete, while the 1546939-9 is in active production. The 1546939-9 includes a flange feature and supports chassis and panel mounting in addition to through-hole mounting. The 1546939-9 is supplied in bulk packaging and carries RoHS Compliant certification.

Q: Are there any mounting compatibility considerations when substituting the 1546939-9 for the 1-1546283-2?

A: The 1-1546283-2 supports through-hole mounting only. The 1546939-9 supports through-hole, chassis, and panel mounting options due to its integrated flange feature. Both parts are mechanically compatible with through-hole PCB applications. The additional mounting flexibility of the 1546939-9 does not restrict its use in through-hole applications.

Q: What is the terminal screw finish difference between these parts?

A: The 1-1546283-2 specifies terminal screw finish as Zinc with Clear Chromate. The 1546939-9 specifies Zinc finish. Both finishes provide corrosion resistance suitable for the 105°C operating temperature and 150V voltage rating. The zinc finish of the 1546939-9 is compatible with the electrical and environmental requirements of the original design.

Q: Is the 1546939-9 RoHS compliant?

A: Yes. The 1546939-9 is RoHS Compliant. The original 1-1546283-2 does not specify RoHS status. The RoHS compliance of the 1546939-9 meets current regulatory requirements for electronic component manufacturing and distribution.

Q: Are both parts suitable for the same wire gauge range?

A: Yes. Both the 1-1546283-2 and 1546939-9 accept wire gauges of 12-22 AWG, ensuring compatibility with identical wiring specifications and installation procedures.