TE Connectivity 640901-2 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 640901-2 is a 5-position header connector from the Universal MATE-N-LOK series, designed for board-to-cable/wire applications. This through-hole solder-terminated connector features gold-plated mating contacts and tin-lead plated posts. The connector is currently active in production with 794 pieces in stock.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the connector design, allowing for direct functional replacement in applications where the primary part becomes unavailable or when alternative packaging or compliance requirements are necessary.

Substiute Parts

640901-2

TE Connectivity AMP ConnectorsIn Stock: 888640901-2 Datasheet

Current PartRFQ

640901-3

TE Connectivity AMP ConnectorsIn Stock: 5701640901-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The TE Connectivity 640901-3 is identified as a direct substitute for the 640901-2 based on the following critical parameters that determine functional equivalence:

Matching Parameters:

• Connector type (Header)
• Number of positions (5)
• Mating pitch (0.250" / 6.35mm)
• Contact type (Female Socket)
• Style (Board to Cable/Wire)
• Mounting type (Through Hole)
• Termination method (Solder)
• Contact finish - mating (Gold)
• Contact finish thickness - mating (30.0µin / 0.76µm)
• Insulation height (0.580" / 14.73mm)
• Contact length - post (0.155" / 3.94mm)
• Operating temperature range (-40°C ~ 105°C)
• Insulation material (Polyamide / Nylon)
• Contact shape (Circular)
• Contact material (Phosphor Bronze)
• Series (Universal MATE-N-LOK)
• Fastening type (Locking Ramp)

Distinguishing Characteristics: The 640901-3 differs in packaging format (Bulk versus standard packaging) and post contact finish (Tin versus Tin-Lead), along with RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

Both the 640901-2 and 640901-3 maintain identical electrical and mechanical specifications for the mating interface, insulation structure, and operating environment. The primary distinction between these parts relates to post contact finish and regulatory compliance status.

The 640901-2 features tin-lead post plating and carries RoHS non-compliant status. The 640901-3 features tin post plating and is ROHS3 compliant. Both parts are active products with established supply availability.

Selection between these parts should be based on:

1. Regulatory Requirements: Applications subject to RoHS3 compliance mandates require the 640901-3.
2. Post Finish Specifications: Applications with specific requirements for tin-lead versus tin post plating should reference the respective part.
3. Packaging Requirements: The 640901-3 is available in bulk packaging, while the 640901-2 is supplied in standard packaging.
4. Supply Availability: The 640901-3 maintains significantly higher inventory levels (5664 pieces versus 794 pieces).

Both parts are functionally equivalent for board-to-cable/wire connection applications within the specified operating temperature range of -40°C to 105°C.

Frequently Asked Questions (FAQ)

Q: Can the 640901-3 directly replace the 640901-2 in existing designs?

A: Yes. The 640901-3 maintains identical mating pitch (0.250"), contact configuration (5-position female socket), mounting method (through-hole solder), and operating temperature range (-40°C to 105°C). The connector footprint and electrical interface are functionally equivalent.

Q: What is the difference between the tin-lead post finish on the 640901-2 and the tin post finish on the 640901-3?

A: The 640901-2 uses tin-lead plating on the solder posts, while the 640901-3 uses tin plating. This distinction reflects the RoHS compliance status of each part. The tin post finish on the 640901-3 aligns with ROHS3 requirements that restrict lead content in electronic components.

Q: Why does the 640901-3 have significantly higher inventory than the 640901-2?

A: The 640901-3 is supplied in bulk packaging and carries ROHS3 compliance certification, making it the preferred specification for modern production environments. Higher inventory reflects current market demand for RoHS-compliant components.

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

A: No. Both parts feature identical gold-plated mating contacts (30.0µin thickness), phosphor bronze contact material, and circular contact geometry. The electrical performance and signal integrity characteristics are equivalent.

Q: What is the significance of the UL94 V-0 flammability rating?

A: The UL94 V-0 rating indicates that the polyamide nylon insulation material meets the highest flammability classification standard. Both the 640901-2 and 640901-3 carry this certification, confirming equivalent material safety performance.

Q: Can these connectors be used interchangeably in high-temperature applications?

A: Yes. Both parts are rated for continuous operation across the -40°C to 105°C temperature range. The insulation material and contact finish specifications support equivalent thermal performance.

Q: What packaging considerations should be evaluated when selecting between these parts?

A: The 640901-2 is supplied in standard packaging, while the 640901-3 is available in bulk packaging. Bulk packaging is typically selected for high-volume production runs, while standard packaging is suitable for lower-volume applications or component kits.