TE Connectivity AMP Connectors 173279-3 D-Type Plug Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 173279-3 is a 50-position D-Type board-to-board plug connector with female sockets, designed for through-hole solder termination. This connector operates within the AMPLIMITE .050 I series and is rated for 1A at 100V across an operating temperature range of -55°C to 105°C.

The 173279-3 is classified as obsolete. Locating equivalent and substitute parts is necessary to support legacy system maintenance, repair operations, and design continuity where this connector specification remains functionally required.

Substiute Parts

173279-3

TE Connectivity AMP ConnectorsIn Stock: 812173279-3 Datasheet

Current PartRFQ

5173279-3

TE Connectivity AMP ConnectorsIn Stock: 22285173279-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 173279-3 is based on electrical and mechanical parameter equivalence within the D-Type connector category. The substitute part must satisfy the following criteria:

Electrical Equivalence:

• 50-position configuration with 2-row layout
• 0.050 pitch x 0.100 row-to-row spacing
• 1A current rating at 100V voltage rating
• Operating temperature range of -55°C to 105°C
• Phosphor bronze contact material with gold finish (8.00µin thickness)

Mechanical Equivalence:

• D-Type board-to-board plug connector with female sockets
• Through-hole solder termination
• Unthreaded housing/shell flange
• UL94 V-0 material flammability rating

Functional Equivalence:

• Signal contact type
• Moisture sensitivity level 1 (unlimited)

The substitute part 5173279-3 meets all electrical, mechanical, and functional parameters required for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

The 5173279-3 is the direct substitute for the obsolete 173279-3. All electrical, mechanical, and functional parameters are equivalent. The substitute part is currently in active production status with 2200 units in stock, compared to the obsolete main part with 752 units available.

Compliance Considerations:

The 5173279-3 is RoHS compliant and carries REACH Unaffected status, whereas the 173279-3 is RoHS non-compliant with vendor-undefined REACH status. For applications subject to RoHS or REACH regulatory requirements, the 5173279-3 is the appropriate selection.

Material Specification:

The dielectric material differs between the two parts: the main part uses thermoplastic material, while the substitute uses polybutylene terephthalate (PBT). Both materials maintain the UL94 V-0 flammability rating and support the identical electrical and thermal specifications. This material change does not affect functional compatibility in applications where the original 173279-3 was specified.

Packaging:

The 5173279-3 is supplied in bulk packaging, whereas the main part packaging is unspecified. Bulk packaging is standard for high-volume procurement and does not affect connector performance or installation.

Frequently Asked Questions (FAQ)

Q: Can the 5173279-3 directly replace the 173279-3 in existing designs?

A: Yes. The 5173279-3 meets all electrical, mechanical, and functional parameters of the 173279-3. Pin configuration, pitch spacing, current and voltage ratings, operating temperature range, and contact materials are identical. Direct substitution is supported without design modification.

Q: What is the significance of the product status difference (Obsolete vs. Active)?

A: The 173279-3 is obsolete and no longer manufactured. The 5173279-3 is in active production, ensuring long-term availability for new procurement, repair operations, and system maintenance. Selection of the active part eliminates supply chain risk.

Q: Does the dielectric material change from thermoplastic to PBT affect performance?

A: No. Both materials maintain UL94 V-0 flammability rating and support identical electrical specifications, voltage rating, current rating, and operating temperature range. The material change does not impact functional compatibility or electrical performance in the specified application envelope.

Q: Why does the 5173279-3 have RoHS compliance while the 173279-3 does not?

A: The 5173279-3 is a current-generation part manufactured to RoHS standards. The 173279-3 is an obsolete part manufactured prior to or outside RoHS compliance requirements. For applications subject to RoHS regulations, the 5173279-3 is the required selection.

Q: Are there any installation or soldering differences between these parts?

A: No. Both parts use identical through-hole solder termination, unthreaded housing/shell flange, and 0.050 pitch x 0.100 row-to-row spacing. Installation procedures, PCB footprints, and soldering parameters are identical.

Q: What is the inventory status for each part?

A: The 173279-3 has 752 units in stock. The 5173279-3 has 2200 units in stock. The substitute part offers significantly higher availability for immediate procurement.

Q: Is the 5173279-3 available in different packaging options?

A: The 5173279-3 is supplied in bulk packaging. The main part 173279-3 has unspecified packaging. Bulk packaging is standard for this connector category and does not affect connector specifications or performance.