TE Connectivity AMP Connectors 147381-5 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 147381-5 is a rectangular connector header designed for surface mount applications. This connector features 50 positions arranged in 2 rows with 0.050" (1.27mm) pitch spacing, suitable for board-to-board interconnections. The part is classified as Active product status and is RoHS Compliant with Moisture Sensitivity Level 1 (Unlimited). Substitute parts are identified when equivalent electrical and mechanical parameters are required due to inventory constraints, design optimization, or application-specific performance requirements.

Substiute Parts

147381-5

TE Connectivity AMP ConnectorsIn Stock: 956147381-5 Datasheet

Current PartRFQ

TFC-125-02-L-D-A-K-TR

Samtec Inc.In Stock: 887TFC-125-02-L-D-A-K-TR Datasheet

SimilarRFQ

TFML-125-02-S-D

Samtec Inc.In Stock: 1110TFML-125-02-S-D Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TE Connectivity 147381-5 are qualified based on the following critical parameters that must remain constant:

Mandatory Matching Parameters:

• Connector Type: Header
• Contact Type: Male Pin
• Number of Positions: 50
• Number of Rows: 2
• Pitch - Mating: 0.050" (1.27mm)
• Row Spacing - Mating: 0.050" (1.27mm)
• Mounting Type: Surface Mount
• Shrouding: Shrouded - 4 Wall
• Termination: Solder
• Insulation Material: Liquid Crystal Polymer (LCP)
• Contact Material: Phosphor Bronze
• Material Flammability Rating: UL94 V-0
• Moisture Sensitivity Level: 1 (Unlimited)

The identified substitute parts—Samtec Inc. TFC-125-02-L-D-A-K-TR and TFML-125-02-S-D—satisfy these core electrical and mechanical requirements. Variations in contact finish thickness, contact length specifications, fastening type, and operating temperature ranges are secondary parameters that do not preclude substitution when primary mating characteristics are preserved.

Parameter Comparison

Engineering Selection Recommendations

TE Connectivity 147381-5 (Primary Part)

The TE Connectivity 147381-5 remains the primary specification when available. This part is Active product status with RoHS Compliant certification and MSL 1 rating. The connector is qualified for automotive, general purpose, medical, military, and telecommunications applications.

Samtec TFC-125-02-L-D-A-K-TR (Substitute Option 1)

The Samtec Tiger Eye™ TFC series connector qualifies as a direct substitute. This part maintains all critical mating parameters and is ROHS3 Compliant with MSL 1 rating. The TFC-125-02-L-D-A-K-TR offers enhanced current rating capability (3.1A per contact versus 0.5A) and extended operating temperature range (-55°C to 125°C). The part is supplied in Tape & Reel packaging and features Push-Pull fastening identical to the primary part. Contact finish thickness on the mating surface is reduced (10.0µin versus 30.0µin), and contact shape is square rather than circular. Voltage rating specification (275VAC) is provided for this substitute.

Samtec TFML-125-02-S-D (Substitute Option 2)

The Samtec Tiger Eye™ TFML series connector qualifies as a direct substitute. This part maintains all critical mating parameters and is ROHS3 Compliant with MSL 1 rating. The TFML-125-02-S-D offers extended operating temperature range (-55°C to 125°C) and is supplied in Tube packaging. This substitute features Friction Lock fastening rather than Push-Pull, and contact shape is square rather than circular. Contact finish thickness on the mating surface matches the primary part (30.0µin). Current rating and voltage rating specifications are not provided for this substitute.

All substitute parts satisfy the mandatory electrical and mechanical requirements for board-to-board interconnection at 0.050" (1.27mm) pitch with 50-position, 2-row configuration.

Frequently Asked Questions (FAQ)

Q: Can the Samtec TFC-125-02-L-D-A-K-TR be used as a direct replacement for the TE Connectivity 147381-5?

A: The Samtec TFC-125-02-L-D-A-K-TR satisfies all critical mating parameters including connector type, contact type, position count, row configuration, pitch spacing, mounting type, shrouding, termination method, insulation material, and contact material. The part is electrically and mechanically compatible for board-to-board applications. Differences in contact shape (square versus circular), contact finish thickness, and fastening type (Push-Pull identical) do not preclude substitution when mating interface requirements are preserved.

Q: What is the difference between the two Samtec substitute options?

A: Both Samtec substitutes maintain identical mating parameters. The primary differences are: (1) Fastening Type—TFC-125-02-L-D-A-K-TR uses Push-Pull fastening matching the primary part, while TFML-125-02-S-D uses Friction Lock fastening; (2) Packaging—TFC-125-02-L-D-A-K-TR is supplied in Tape & Reel, while TFML-125-02-S-D is supplied in Tube; (3) Current Rating—TFC-125-02-L-D-A-K-TR specifies 3.1A per contact, while TFML-125-02-S-D does not specify current rating; (4) Voltage Rating—TFC-125-02-L-D-A-K-TR specifies 275VAC, while TFML-125-02-S-D does not specify voltage rating.

Q: Are the operating temperature ranges compatible?

A: The TE Connectivity 147381-5 operates from -65°C to 105°C. Both Samtec substitutes operate from -55°C to 125°C. The Samtec parts provide extended upper temperature capability (125°C versus 105°C) but narrower lower temperature range (-55°C versus -65°C). Application requirements determine whether the Samtec operating range is acceptable.

Q: Does the contact shape difference (circular versus square) affect compatibility?

A: Contact shape is a secondary parameter that does not affect mating compatibility when pitch spacing, position count, and row configuration remain constant. Both circular and square contact geometries are compatible with standard 0.050" (1.27mm) pitch receptacle designs.

Q: What is the significance of the contact finish thickness difference?

A: The TE Connectivity 147381-5 specifies 30.0µin (0.76µm) gold finish on mating contacts. The Samtec TFC-125-02-L-D-A-K-TR specifies 10.0µin (0.25µm), while the TFML-125-02-S-D matches at 30.0µin (0.76µm). Contact finish thickness affects wear resistance and contact reliability over mating cycles. The reduced thickness on the TFC variant does not preclude substitution but represents a design variation.

Q: How do packaging differences affect component selection?

A: The TE Connectivity 147381-5 is supplied in Tape & Reel (TR) packaging. The Samtec TFC-125-02-L-D-A-K-TR is also supplied in Tape & Reel, maintaining packaging compatibility. The Samtec TFML-125-02-S-D is supplied in Tube packaging, which may require different handling and placement equipment. Packaging selection depends on assembly process requirements and equipment compatibility.

Q: Are all substitute parts RoHS compliant?

A: Yes. The TE Connectivity 147381-5 is RoHS Compliant. Both Samtec substitutes are ROHS3 Compliant, which represents an updated RoHS certification standard. All parts meet current RoHS requirements.

Q: What is the Moisture Sensitivity Level (MSL) for all parts?

A: All three parts—TE Connectivity 147381-5, Samtec TFC-125-02-L-D-A-K-TR, and Samtec TFML-125-02-S-D—are rated MSL 1 (Unlimited). This classification indicates unlimited shelf life without moisture control requirements.