TE Connectivity AMP Connectors 1-1546283-5 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 1-1546283-5 is a 26-circuit barrier block terminal connector with 0.325" (8.26mm) pitch spacing, designed for through-hole mounting applications. This component 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 1-1546283-5 is classified as obsolete. Identification of equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production and maintenance requirements for systems utilizing this connector series.

Substiute Parts

1-1546283-5

TE Connectivity AMP ConnectorsIn Stock: 7771-1546283-5 Datasheet

Current PartRFQ

1-1546939-4

TE Connectivity AMP ConnectorsIn Stock: 9541-1546939-4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 1-1546283-5 with the active part 1-1546939-4 is based on electrical and mechanical parameter equivalence within the TE Connectivity AMP Connectors #4 Buchanan series.

The following parameters are identical between the main part and substitute:

• Terminal block type (Barrier Block)
• Number of circuits (26)
• Pitch spacing (0.325" / 8.26mm)
• Current rating (20A)
• Voltage rating (150V)
• Wire gauge range (12-22 AWG)
• Top termination method (Screws with Captive Plate)
• Bottom termination method (PC Pin)
• Barrier configuration (3 Wall / Tri)
• Operating temperature (105°C)
• Insulation material (Polyamide / Nylon)
• Flammability rating (UL94 V-0)
• Moisture sensitivity level (1 / Unlimited)

These parameters establish functional and electrical interchangeability for applications requiring 26-circuit barrier block connectors with the specified electrical and thermal characteristics.

Parameter Comparison

Engineering Selection Recommendations

The 1-1546939-4 is the appropriate substitute for the obsolete 1-1546283-5 based on the following engineering criteria:

Product Status and Availability: The 1-1546283-5 is classified as obsolete, while the 1-1546939-4 is active and currently in production. This status difference ensures continued supply chain access and long-term component availability for new designs and ongoing maintenance.

Electrical and Mechanical Equivalence: Both parts maintain identical electrical ratings (20A, 150V), circuit configuration (26 circuits), pitch spacing (0.325"), and termination methods. This equivalence ensures direct functional replacement without circuit redesign or PCB layout modification.

Compliance and Certifications: Both parts carry identical material certifications, including UL94 V-0 flammability rating and unlimited moisture sensitivity level (MSL 1). Both are classified under ECCN EAR99 and HTSUS 8536.90.4000.

RoHS Compliance: The 1-1546939-4 is explicitly RoHS compliant, supporting regulatory requirements for new product development and international market distribution.

Mounting Flexibility: The 1-1546939-4 includes flange mounting capability in addition to through-hole and chassis/panel mounting options, providing enhanced design flexibility compared to the main part.

Frequently Asked Questions (FAQ)

Q: Can the 1-1546939-4 be used as a direct replacement for the 1-1546283-5 in existing designs?

A: Yes. Both parts are electrically and mechanically equivalent within the TE Connectivity AMP Connectors #4 Buchanan series. They share identical circuit count (26), pitch spacing (0.325"), current rating (20A), voltage rating (150V), wire gauge compatibility (12-22 AWG), and termination methods. No circuit redesign or PCB layout modification is required.

Q: What are the differences between these two parts?

A: The primary differences are product status and packaging. The 1-1546283-5 is obsolete, while the 1-1546939-4 is active. The 1-1546939-4 includes flange mounting capability and is RoHS compliant. The 1-1546939-4 is supplied in bulk packaging, whereas the 1-1546283-5 packaging specification was not provided.

Q: Are there any thermal or electrical performance differences?

A: No. Both parts operate at identical temperature ratings (105°C maximum), current capacity (20A), and voltage ratings (150V). Insulation material, flammability rating (UL94 V-0), and moisture sensitivity level (MSL 1) are identical.

Q: Does the 1-1546939-4 require any design modifications for PCB integration?

A: No. The 1-1546939-4 maintains the same pitch spacing (0.325"), number of circuits (26), and PC pin bottom termination as the 1-1546283-5. Existing PCB footprints and mounting hole patterns are compatible.

Q: What is the significance of the flange feature on the 1-1546939-4?

A: The flange provides additional mounting options beyond through-hole mounting. This feature allows the 1-1546939-4 to be mounted on chassis or panel surfaces, offering design flexibility not explicitly specified for the 1-1546283-5.

Q: Is the 1-1546939-4 suitable for applications requiring RoHS compliance?

A: Yes. The 1-1546939-4 is explicitly RoHS compliant, making it suitable for applications and markets with RoHS regulatory requirements.