TE Connectivity 2-1734493-6 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 2-1734493-6 is a rectangular connector header manufactured under the AMPMODU series. This through-hole, right-angle connector features 26 positions across 2 rows with 0.079" (2.00mm) pitch spacing. The connector is designed for board-to-board or cable applications with shrouded 4-wall construction and push-pull fastening. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain functional compatibility while offering current product availability and compliance certifications.

Substiute Parts

2-1734493-6

TE Connectivity AMP ConnectorsIn Stock: 12382-1734493-6 Datasheet

Current PartRFQ

0878332621

MolexIn Stock: 8980878332621 Datasheet

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LTMM-113-01-G-D-RA

Samtec Inc.In Stock: 922LTMM-113-01-G-D-RA Datasheet

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LTMM-113-01-L-D-RA

Samtec Inc.In Stock: 803LTMM-113-01-L-D-RA Datasheet

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LTMM-113-01-S-D-RA

Samtec Inc.In Stock: 1123LTMM-113-01-S-D-RA Datasheet

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LTMM-113-02-F-D-RA

Samtec Inc.In Stock: 1044LTMM-113-02-F-D-RA Datasheet

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LTMM-113-02-G-D-RA

Samtec Inc.In Stock: 793LTMM-113-02-G-D-RA Datasheet

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LTMM-113-02-G-D-RA-01

Samtec Inc.In Stock: 1085LTMM-113-02-G-D-RA-01 Datasheet

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LTMM-113-02-L-D-RA

Samtec Inc.In Stock: 1304LTMM-113-02-L-D-RA Datasheet

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LTMM-113-02-S-D-RA

Samtec Inc.In Stock: 914LTMM-113-02-S-D-RA Datasheet

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LTMM-113-02-T-D-RA

Samtec Inc.In Stock: 1054LTMM-113-02-T-D-RA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 2-1734493-6 is determined by strict adherence to the following core parameters:

Critical Matching Parameters:

• Connector type: Header
• Contact type: Male Pin
• Number of positions: 26
• Number of rows: 2
• Pitch - mating: 0.079" (2.00mm)
• Row spacing - mating: 0.079" (2.00mm)
• Mounting type: Through Hole, Right Angle
• Shrouding: Shrouded - 4 Wall
• Termination: Solder
• Contact shape: Square
• Insulation color: Black
• Features: Keying Slot

Allowable Variations:

• Contact material: Brass (main part) to Phosphor Bronze (substitutes)
• Insulation material: Polyamide PA6T to Liquid Crystal Polymer (LCP) or Polyamide (PA) Glass Filled
• Contact finish composition and thickness on mating and post surfaces
• Contact length specifications within functional tolerance
• Insulation height within mechanical envelope constraints
• Fastening type: Push-Pull (main part) to Latch Holder (Molex alternative)
• Operating temperature range expansion
• Product status transition from Obsolete to Active

Substitute parts must maintain board-to-board or cable connectivity functionality and preserve mechanical and electrical interface compatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: Samtec LTMM-113 Series

The Samtec Flex Stack LTMM-113 series represents the most comprehensive substitute family for the obsolete TE Connectivity 2-1734493-6. All Samtec variants maintain active product status with ROHS3 compliance certification. The series offers multiple contact finish and material configurations to accommodate specific application requirements while preserving core mechanical and electrical interface compatibility.

Samtec LTMM-113-02-L-D-RA is the optimal direct replacement candidate, offering:

• Identical 26-position, 2-row configuration with 0.079" (2.00mm) pitch
• Active product status with full ROHS3 compliance and REACH Unaffected certification
• Highest inventory availability (1205 units)
• Gold mating contact finish with tin post finish matching the original specification
• Operating temperature range of -55°C to 105°C, exceeding the original -40°C to 105°C specification
• Phosphor bronze contact material providing enhanced durability over brass
• Liquid Crystal Polymer insulation offering superior thermal and mechanical properties

Secondary Recommendation: Molex 0878332621

The Molex Milli-Grid 87833 series alternative (0878332621) provides a single-source substitute with active product status and ROHS3 compliance. This option features:

• Identical core connector specifications (26 positions, 2 rows, 0.079" pitch)
• Latch Holder fastening mechanism as an alternative to push-pull fastening
• Extended operating temperature range (-55°C to 105°C)
• Automotive, General Purpose, and Telecommunications application certifications
• Phosphor bronze contact material with glass-filled polyamide insulation

Samtec LTMM-113 Variant Selection Guidance

Within the Samtec LTMM-113 family, selection between variants depends on specific contact finish and mating length requirements:

• LTMM-113-01 variants: 0.100" (2.54mm) mating contact length
• LTMM-113-02 variants: 0.120" (3.05mm) mating contact length

Contact finish options across the series:

• -L-D-RA: Gold mating / Tin post (matches original specification)
• -S-D-RA: Gold mating (30.0µin) / Tin post
• -G-D-RA: Gold mating / Gold post
• -F-D-RA: Gold mating (3.00µin) / Tin post
• -T-D-RA: Tin mating / Tin post

All Samtec variants maintain identical mechanical envelope, keying slot design, and board-to-board connectivity functionality.

Frequently Asked Questions (FAQ)

Q: Can the Samtec LTMM-113 series directly replace the TE Connectivity 2-1734493-6 in existing PCB designs?

A: Yes. The Samtec LTMM-113 series maintains identical pitch spacing (0.079" / 2.00mm), position count (26 positions, 2 rows), mounting type (through-hole, right-angle), and shrouding configuration (4-wall). The keying slot design is preserved across all variants. PCB footprints designed for the original connector are compatible with Samtec substitutes without modification.

Q: What is the difference between the LTMM-113-01 and LTMM-113-02 variants?

A: The primary difference is mating contact length. LTMM-113-01 variants feature 0.100" (2.54mm) mating contact length, while LTMM-113-02 variants feature 0.120" (3.05mm) mating contact length. Selection depends on the mating connector depth requirements. Both variants maintain identical pitch, position count, and mechanical envelope.

Q: How do contact finish options affect connector performance?

A: Contact finish composition influences electrical conductivity, corrosion resistance, and wear characteristics. Gold finishes provide superior corrosion resistance and lower contact resistance. Tin finishes offer cost efficiency with adequate performance for standard applications. The original TE Connectivity part specifies gold mating finish with tin post finish, which is replicated in the Samtec LTMM-113-01-L-D-RA and LTMM-113-02-L-D-RA variants.

Q: What is the significance of the Liquid Crystal Polymer (LCP) insulation material in Samtec variants?

A: Liquid Crystal Polymer insulation offers superior thermal stability, dimensional consistency, and mechanical strength compared to traditional polyamide materials. LCP maintains stable electrical properties across the extended operating temperature range (-55°C to 125°C for select variants) and provides enhanced resistance to moisture absorption and chemical exposure.

Q: Is the Molex 0878332621 compatible with push-pull fastening systems?

A: The Molex 0878332621 features Latch Holder fastening rather than push-pull fastening. While both fastening mechanisms provide secure mating, they operate through different mechanical principles. Applications requiring push-pull fastening should select Samtec LTMM-113 variants, which maintain push-pull fastening compatibility.

Q: What compliance certifications are relevant for new designs?

A: All active substitute parts (Molex 0878332621 and Samtec LTMM-113 series) carry ROHS3 compliance certification. The Samtec LTMM-113-02-L-D-RA additionally carries REACH Unaffected certification. These certifications ensure compliance with current environmental and hazardous substance regulations for commercial and industrial applications.

Q: Are there inventory considerations when selecting between substitute options?

A: Current inventory levels vary across alternatives. Samtec LTMM-113-02-L-D-RA maintains the highest inventory (1205 units), followed by LTMM-113-02-G-D-RA-01 (995 units) and LTMM-113-02-T-D-RA (979 units). Molex 0878332621 maintains 810 units. Inventory levels should be evaluated against project timeline and volume requirements.

Q: Can the original TE Connectivity 2-1734493-6 be used interchangeably with substitute parts in the same assembly?

A: No. The original TE Connectivity part is classified as obsolete and is not recommended for new designs. Existing assemblies using the original part may continue operation, but new production should transition to active alternatives. The Samtec LTMM-113 series and Molex 0878332621 are recommended for all new designs and production transitions.

Q: What is the operating temperature range difference between the original and substitute parts?

A: The original TE Connectivity 2-1734493-6 operates from -40°C to 105°C. Most Samtec LTMM-113 variants operate from -55°C to 105°C, providing extended low-temperature capability. Select Samtec variants (LTMM-113-01-G-D-RA and LTMM-113-02-G-D-RA) extend the upper limit to 125°C. The Molex 0878332621 operates from -55°C to 105°C. These extended ranges provide design margin for demanding thermal environments.