TE Connectivity 1-644897-0 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-644897-0 is a shrouded rectangular connector header designed for through-hole mounting applications. This component features a 10-position, single-row configuration with 0.100" (2.54mm) pitch spacing and is rated for general purpose and lighting applications. The part operates across a temperature range of -55°C to 105°C with a 250VAC voltage rating.

The 1-644897-0 carries an obsolete product status. Identifying equivalent substitute parts ensures design continuity and maintains supply chain reliability for applications currently utilizing this connector header.

Substiute Parts

1-644897-0

TE Connectivity AMP ConnectorsIn Stock: 8421-644897-0 Datasheet

Current PartRFQ

4-644897-0

TE Connectivity AMP ConnectorsIn Stock: 35374-644897-0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 1-644897-0 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Contact type (Male Pin)
• Number of positions (10)
• Pitch spacing (0.100" / 2.54mm)
• Voltage rating (250VAC)
• Operating temperature range (-55°C ~ 105°C)

Mechanical Compatibility Parameters:

• Connector type (Header)
• Mounting type (Through Hole)
• Shrouding configuration (Shrouded - 4 Wall)
• Termination method (Solder)
• Insulation material (Polyester)

Compliance Parameters:

• RoHS3 compliance
• UL94 V-0 flammability rating
• Moisture Sensitivity Level (MSL 1)

The substitute part 4-644897-0 maintains identical electrical and mechanical specifications while offering active product status and improved inventory availability.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 4-644897-0 is the direct substitute for the obsolete 1-644897-0. Both parts are manufactured by TE Connectivity within the CST-100 series and maintain identical electrical and mechanical specifications across all critical parameters.

Compliance and Certification Alignment: Both parts carry ROHS3 compliance and UL94 V-0 flammability certification, ensuring regulatory equivalence for applications requiring these standards. The MSL 1 rating indicates unlimited shelf life under standard storage conditions.

Product Status Advantage: The 4-644897-0 maintains active product status with significantly higher inventory availability (3501 pieces in stock versus 778 pieces for the obsolete part). This ensures long-term supply chain continuity and reduces procurement risk.

Contact Finish Consideration: The primary technical difference is the post contact finish: the main part uses Tin-Lead while the substitute uses Tin. This change reflects industry-wide transition toward lead-free manufacturing practices and maintains functional equivalence for solder termination applications.

Packaging Configuration: The substitute part is supplied in bulk packaging, suitable for production environments requiring standard component quantities.

Frequently Asked Questions (FAQ)

Q: Are the 1-644897-0 and 4-644897-0 electrically interchangeable?

A: Yes. Both parts maintain identical electrical specifications including 250VAC voltage rating, -55°C to 105°C operating temperature range, and 10-position 0.100" pitch configuration. They are electrically interchangeable in all applications.

Q: What is the significance of the contact finish difference (Tin-Lead versus Tin)?

A: The substitute part uses Tin finish on the post contact instead of Tin-Lead. Both finishes are compatible with solder termination processes. The Tin finish reflects current manufacturing standards and lead-free compliance initiatives while maintaining functional equivalence.

Q: Can the 4-644897-0 be used as a direct replacement in existing designs?

A: Yes. The 4-644897-0 is mechanically and electrically identical to the 1-644897-0 across all critical parameters including mounting type, shrouding configuration, contact geometry, and termination method. No design modifications are required.

Q: Why is the 1-644897-0 listed as obsolete?

A: The 1-644897-0 has been superseded by the 4-644897-0 within the CST-100 series. The substitute part offers improved availability and active product status while maintaining complete specification equivalence.

Q: What are the compliance certifications for both parts?

A: Both parts are ROHS3 compliant and carry UL94 V-0 flammability certification. They are classified as EAR99 for export control purposes and fall under HTSUS code 8536.69.4040.

Q: Is there a difference in packaging between the two parts?

A: The 1-644897-0 packaging is not specified in available documentation. The 4-644897-0 is supplied in bulk packaging, which is standard for production component procurement.

Q: What is the MSL rating and why does it matter?

A: Both parts carry MSL 1 (Unlimited) rating, indicating they have unlimited shelf life under standard storage conditions. No special moisture control measures are required during storage or handling.

Q: Are there any applications where the 4-644897-0 cannot replace the 1-644897-0?

A: No. The parts are functionally equivalent across all specified parameters. The 4-644897-0 is suitable for all applications previously using the 1-644897-0, including general purpose and lighting applications.