P50LE-040P1-SML-TGF Equivalent & Substitute Parts

Part Overview

The P50LE-040P1-SML-TGF is a rectangular connector header manufactured by 3M, designed for surface mount applications with 40 positions at 1.27mm pitch. This component is classified as obsolete, which necessitates identification of active equivalent parts to ensure continued design support and procurement availability. The connector features shrouded 4-wall construction with solder termination and is suitable for board-to-cable/wire interconnection applications.

Substiute Parts

P50LE-040P1-SML-TGF

3MIn Stock: 1177P50LE-040P1-SML-TGF Datasheet

Current PartRFQ

P50LE-040P1-SML-DA

3MIn Stock: 1290P50LE-040P1-SML-DA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P50LE-040P1-SML-TGF is determined by strict equivalence across the following critical parameters:

• Connector type (Plug)
• Number of positions (40)
• Pitch - mating (0.050" / 1.27mm)
• Number of rows (2)
• Mounting type (Surface Mount)
• Shrouding configuration (Shrouded - 4 Wall)
• Termination method (Solder)
• Contact material (Phosphor Bronze)
• Insulation material (Polyphenylene Sulfide)
• Operating temperature range (-55°C ~ 85°C)
• Current rating (0.5A)
• Material flammability rating (UL94 V-0)

The substitute part P50LE-040P1-SML-DA meets all these critical parameters and is classified as an active product, making it a direct functional equivalent for the obsolete P50LE-040P1-SML-TGF.

Parameter Comparison

Engineering Selection Recommendations

The P50LE-040P1-SML-DA is the direct active equivalent for the obsolete P50LE-040P1-SML-TGF. Both parts share identical mechanical and electrical specifications across all critical functional parameters. The substitute part offers the following advantages:

• Active product status ensures ongoing availability and manufacturing support
• ROHS3 compliance meets current regulatory requirements, whereas the original part is RoHS non-compliant
• Glass-filled PPS insulation material provides enhanced mechanical properties
• Gold plating on post contacts (versus tin on the original) offers improved corrosion resistance

The differences in contact finish specifications and insulation material composition do not affect functional compatibility in applications designed for the original part. Selection of the P50LE-040P1-SML-DA is appropriate for new designs and replacement applications requiring the P50LE series 40-position 1.27mm pitch connector.

Frequently Asked Questions (FAQ)

Q: Can P50LE-040P1-SML-DA be used as a direct replacement for P50LE-040P1-SML-TGF?

A: Yes. Both parts are identical in connector type, position count, pitch, mounting method, shrouding, and termination. The substitute part meets all functional requirements of the original.

Q: What is the difference between the contact finishes?

A: The original part features gold mating contacts (2.00µin thickness) with tin post contacts (80.0µin thickness). The substitute part uses gold flash plating on both mating and post contacts. Both configurations provide adequate electrical performance for the 0.5A current rating.

Q: Does the glass-filled PPS insulation affect compatibility?

A: No. Glass-filled PPS is a material enhancement that maintains the same electrical and mechanical interface characteristics. It provides improved dimensional stability and mechanical strength without affecting connector mating or performance.

Q: What is the significance of the RoHS compliance difference?

A: The original part is RoHS non-compliant, while the substitute is ROHS3 compliant. For applications subject to RoHS regulations or customer requirements, the substitute part is the appropriate selection.

Q: Are there packaging differences between these parts?

A: The original part packaging is not specified in available data. The substitute part is supplied in bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: What is the inventory status for these parts?

A: The original P50LE-040P1-SML-TGF has 1129 pieces in stock (obsolete status). The substitute P50LE-040P1-SML-DA has 1231 pieces in stock and is an active product with ongoing availability.