TE Connectivity 794629-8 Rectangular Connector: Equivalent & Substitute Parts

Part Overview

The TE Connectivity 794629-8 is a surface mount, right-angle rectangular connector header in the Micro MATE-N-LOK series. This connector features 8 positions arranged in 2 rows with 0.118" (3.00mm) pitch, designed for board-to-cable/wire applications with solder termination and locking ramp fastening. The part is classified as obsolete, necessitating identification of active equivalent components to maintain design continuity and ensure ongoing component availability for production and field service applications.

Substiute Parts

794629-8

TE Connectivity AMP ConnectorsIn Stock: 921794629-8 Datasheet

Current PartRFQ

3-794629-8

TE Connectivity AMP ConnectorsIn Stock: 10563-794629-8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 794629-8 is based on strict electrical and mechanical parameter equivalence within the Micro MATE-N-LOK series. The substitute part must maintain identical specifications across the following critical parameters:

• Connector type, contact type, and series designation
• Number of positions (8) and row configuration (2 rows)
• Mating pitch and row spacing (0.118" / 3.00mm)
• Mounting style (surface mount, right angle)
• Termination method (solder)
• Shrouding configuration (shrouded - 4 wall)
• Voltage and temperature ratings
• Material flammability compliance (UL94 V-0)

The substitute part 3-794629-8 satisfies all these parameters. The primary distinction between the main part and its substitute is product status (obsolete versus active) and packaging format (bulk versus tape & reel), along with minor variations in post-termination finish specification and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The substitute part 3-794629-8 is the direct equivalent for the obsolete 794629-8. Selection of the substitute is based on the following engineering criteria:

Product Status: The main part 794629-8 is classified as obsolete. The substitute 3-794629-8 maintains active product status with TE Connectivity, ensuring ongoing availability and manufacturer support.

Electrical and Mechanical Compatibility: All critical electrical parameters (voltage rating, operating temperature range, contact materials, and finishes) are identical between the main part and substitute. All mechanical parameters (pitch, row spacing, mounting configuration, shrouding, and termination method) are identical, ensuring direct form-fit-function compatibility.

Compliance and Certifications: The substitute part carries RoHS Compliant certification, whereas the main part status is not applicable. Both parts maintain UL94 V-0 material flammability rating. The substitute part specifies standard Moisture Sensitivity Level (MSL) 2 classification, appropriate for general production and storage conditions.

Contact Finish Specification: The substitute part specifies tin post-termination finish, compared to tin-lead in the main part. This represents a functional equivalent specification consistent with modern lead-free manufacturing standards.

Packaging Consideration: The substitute is supplied in tape & reel (TR) format, standard for automated assembly operations, whereas the main part is supplied in bulk format. This packaging difference does not affect electrical or mechanical performance.

Frequently Asked Questions (FAQ)

Q: Can the 3-794629-8 substitute directly replace the 794629-8 in existing designs?

A: Yes. The 3-794629-8 is electrically and mechanically identical to the 794629-8 across all critical parameters including pitch, row spacing, voltage rating, temperature range, contact configuration, and termination method. Direct substitution is supported without design modification.

Q: What is the significance of the product status difference (obsolete versus active)?

A: The main part 794629-8 is obsolete and no longer manufactured or supported by TE Connectivity. The substitute 3-794629-8 is an active product with ongoing availability, manufacturer support, and compliance certifications. Use of the active substitute ensures component supply continuity for production and field service.

Q: How does the packaging format difference affect component selection?

A: The main part is supplied in bulk packaging, while the substitute is supplied in tape & reel (TR) format. Tape & reel packaging is standard for automated surface mount assembly operations and provides improved handling, traceability, and storage efficiency. The packaging format does not affect connector performance or compatibility.

Q: What is the difference between tin-lead and tin post-termination finishes?

A: Both finishes provide equivalent solder joint reliability and electrical performance. Tin finish on the substitute part aligns with lead-free manufacturing standards and RoHS compliance requirements. The tin-lead finish on the main part represents an older specification. Both are functionally equivalent for solder termination applications.

Q: Does the RoHS Compliant status of the substitute affect compatibility?

A: No. RoHS compliance is a material composition standard that does not affect electrical or mechanical performance. The substitute's RoHS Compliant certification indicates compliance with hazardous substance restrictions and is advantageous for applications subject to environmental regulations.

Q: Are there any differences in moisture sensitivity handling between the main part and substitute?

A: The main part specifies MSL 1 (unlimited moisture sensitivity level), while the substitute specifies MSL 2 (1 year). MSL 2 is a standard classification requiring standard moisture control during storage and handling. For most applications, MSL 2 components are handled using standard industry practices without additional precautions.

Q: Can the 3-794629-8 be used in applications originally designed for the 794629-8?

A: Yes. The substitute part maintains identical electrical ratings (250V), temperature range (-40°C to 105°C), and mechanical configuration. It is suitable for all general-purpose board-to-cable/wire connection applications originally specified for the main part.