TE Connectivity AMP Connectors 794455-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 794455-2 is a rectangular connector header designed for through-hole mounting applications. This connector features a vertical orientation with 20 positions arranged in 2 rows, utilizing a 0.165" (4.20mm) pitch configuration. The connector is classified as a shrouded 4-wall header with male pin contacts, suitable for board-to-board or cable interconnection.

The 794455-2 carries an obsolete product status, which necessitates identification of active equivalent alternatives to ensure continued design support and component availability for new production runs and field replacements.

Substiute Parts

794455-2

TE Connectivity AMP ConnectorsIn Stock: 747794455-2 Datasheet

Current PartRFQ

1-794455-2

TE Connectivity AMP ConnectorsIn Stock: 8101-794455-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 794455-2 is determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters establish the substitution criteria:

Electrical Parameters:

• Voltage Rating: 600VAC
• Operating Temperature Range: -55°C ~ 105°C
• Material Flammability Rating: UL94 V-0

Mechanical Parameters:

• Connector Type: Header
• Contact Type: Male Pin
• Number of Positions: 20
• Number of Rows: 2
• Pitch - Mating: 0.165" (4.20mm)
• Row Spacing - Mating: 0.165" (4.20mm)
• Mounting Type: Through Hole
• Shrouding: Shrouded - 4 Wall
• Termination: Solder
• Fastening Type: Locking Ramp
• Insulation Material: Polyamide (PA), Nylon
• Contact Material: Copper Alloy

Substitute parts must maintain identical specifications across all listed parameters to ensure direct functional and mechanical compatibility without design modification or board-level rework.

Parameter Comparison

Engineering Selection Recommendations

The 1-794455-2 is a direct functional equivalent to the obsolete 794455-2. Both connectors maintain identical electrical and mechanical specifications across all critical parameters, including connector type, contact configuration, pitch, mounting method, and operating characteristics.

The primary distinction between these parts is product lifecycle status and regulatory compliance:

Product Status: The 794455-2 is classified as obsolete, while the 1-794455-2 is active. Active product status ensures continued manufacturing support, availability, and technical documentation from TE Connectivity AMP Connectors.

Regulatory Compliance: The 1-794455-2 achieves ROHS3 compliance and REACH Unaffected status, whereas the 794455-2 is RoHS non-compliant with undefined REACH status. For applications subject to environmental regulations or customer compliance requirements, the 1-794455-2 provides superior regulatory positioning.

Contact Finish - Post: The 794455-2 features Tin-Lead post finish, while the 1-794455-2 uses Tin post finish. Both finishes are suitable for solder termination and provide equivalent electrical performance in through-hole applications.

For new designs, production ramp-up, and field replacement scenarios, the 1-794455-2 is the appropriate selection due to active product status and improved compliance profile.

Frequently Asked Questions (FAQ)

Q: Are the 794455-2 and 1-794455-2 mechanically interchangeable?

A: Yes. Both connectors share identical mechanical specifications including pitch (0.165" / 4.20mm), position count (20), row configuration (2 rows), mounting type (through-hole), shrouding (4-wall), and overall dimensions. Direct substitution is possible without PCB modification or design rework.

Q: What is the difference between Tin-Lead and Tin post finishes?

A: Both finishes are suitable for solder termination in through-hole applications. Tin-Lead finish (794455-2) contains lead, while Tin finish (1-794455-2) is lead-free. The Tin finish aligns with RoHS3 compliance requirements. Electrical performance and solder joint reliability are equivalent for both finishes in standard through-hole soldering processes.

Q: Why is the 794455-2 listed as obsolete?

A: Obsolete status indicates that TE Connectivity AMP Connectors has discontinued active manufacturing and support for this part number. The 1-794455-2 represents the current active equivalent, ensuring continued availability and technical support.

Q: Does the 1-794455-2 require different PCB footprint or layout considerations?

A: No. The 1-794455-2 maintains identical pitch, row spacing, contact length, and insulation height specifications. Existing PCB designs and footprints for the 794455-2 are directly compatible with the 1-794455-2 without modification.

Q: What is the significance of ROHS3 compliance on the 1-794455-2?

A: ROHS3 compliance indicates that the 1-794455-2 meets Restriction of Hazardous Substances Directive requirements, restricting the use of specific hazardous materials including lead, cadmium, and mercury. This compliance is required for products sold in the European Union and is increasingly mandated by global customers and regulatory bodies.

Q: Can the 794455-2 be used in new production if inventory is available?

A: While existing inventory of the 794455-2 may be used, design specifications should transition to the 1-794455-2 for new production programs. Obsolete part status creates long-term supply chain risk and limits access to technical support and manufacturing updates from TE Connectivity AMP Connectors.

Q: Are there any electrical performance differences between these connectors?

A: No. Both connectors maintain identical voltage rating (600VAC), operating temperature range (-55°C ~ 105°C), contact material (Copper Alloy), contact finish (Gold mating surface), and flammability rating (UL94 V-0). Electrical performance is equivalent.

Q: What is the MSL rating and why is it relevant?

A: Both connectors carry MSL 1 (Unlimited) rating, indicating unlimited shelf life without moisture sensitivity concerns. This classification simplifies inventory management and eliminates bake-out requirements prior to assembly.