2-1546931-4 Terminal Block Header Equivalent & Substitute Parts

Part Overview

The 2-1546931-4 is a 24-position terminal block header manufactured by TE Connectivity AMP Connectors. This component features male pins in an unshrouded configuration with 0.197" (5.00mm) vertical pitch spacing and through-hole solder termination. The part is actively produced and maintained in inventory, serving applications requiring multi-position electrical connections with standardized spacing and mounting characteristics. Equivalent and substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits component selection from multiple qualified manufacturers.

Substiute Parts

2-1546931-4

TE Connectivity AMP ConnectorsIn Stock: 9282-1546931-4 Datasheet

Current PartRFQ

OSTOP240000

On Shore Technology Inc.In Stock: 113123OSTOP240000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2-1546931-4 with the OSTOP240000 is based on equivalence across the following critical parameters:

Matching Parameters:

• 24-position configuration
• 0.197" (5.00mm) pitch spacing
• Vertical header orientation
• Male pins, unshrouded type
• 300 V UL voltage rating
• 0.138" (3.50mm) contact tail length
• Tin contact mating finish
• Single level, 24 positions per level configuration

Both parts satisfy the electrical and mechanical requirements for applications requiring 24-position vertical terminal block headers with standardized 5mm pitch spacing and solder termination. The OSTOP240000 provides an alternative source from On Shore Technology Inc. while maintaining dimensional and electrical compatibility within the specified parameter set.

Parameter Comparison

Engineering Selection Recommendations

Both the 2-1546931-4 and OSTOP240000 are active production components with equivalent electrical and mechanical specifications. Selection between these parts is based on the following factors:

TE Connectivity 2-1546931-4: Maintains RoHS Compliant certification with established supply chain availability of 843 pieces in current inventory. The Buchanan series designation provides historical design continuity for applications with existing documentation referencing this manufacturer.

On Shore Technology OSTOP240000: Provides ROHS3 Compliant certification with significantly higher inventory availability of 113,113 pieces. The OSTOP series offers alternative sourcing for applications where supply chain diversification or extended lead-time mitigation is required. REACH status is defined as REACH Unaffected, providing regulatory clarity for European market applications.

Both parts carry identical ECCN (EAR99) and HTSUS (8536.69.4040) classifications, supporting equivalent export and tariff treatment. Moisture Sensitivity Level 1 (Unlimited) on both parts eliminates special handling requirements during storage and assembly.

Frequently Asked Questions (FAQ)

Q: Are the 2-1546931-4 and OSTOP240000 mechanically interchangeable?

A: Yes. Both parts share identical pitch spacing (0.197" / 5.00mm), contact tail length (0.138" / 3.50mm), and vertical orientation. The 24-position unshrouded male pin configuration is identical across both parts, permitting direct substitution in PCB footprints and connector receptacle designs.

Q: What are the electrical compatibility requirements?

A: Both parts are rated for 300 V UL and carry tin contact mating finish. The 2-1546931-4 specifies 12 A UL current rating. Applications requiring these electrical parameters are satisfied by either part.

Q: Do these parts require different handling or storage procedures?

A: No. Both parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture control requirements during storage, handling, or assembly. Standard component storage conditions apply to both parts.

Q: What is the difference in housing material between these parts?

A: The 2-1546931-4 specifies Polyamide (PA66), Nylon 6/6 housing material. The OSTOP240000 specifies Brass housing material. This material difference does not affect electrical or mechanical compatibility for standard terminal block applications but may influence thermal characteristics in specific operating environments.

Q: Are both parts compliant with current regulatory standards?

A: Yes. The 2-1546931-4 is RoHS Compliant. The OSTOP240000 is ROHS3 Compliant, representing the current iteration of RoHS requirements. Both parts carry EAR99 ECCN classification and identical HTSUS codes (8536.69.4040), supporting equivalent regulatory treatment.

Q: Which part should be selected for new designs?

A: Selection is based on supply chain requirements and regulatory jurisdiction. Both parts satisfy identical electrical and mechanical specifications. The OSTOP240000 offers higher inventory availability and ROHS3 compliance for applications prioritizing current regulatory alignment. The 2-1546931-4 provides continuity for existing designs with established TE Connectivity supplier relationships.