TE Connectivity 646372-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 646372-1 is a 176-position header connector with male pins, 2.00mm pitch, designed for through-hole press-fit mounting on backplane applications. This connector features an 8-row configuration with gold-plated contacts rated for 1.5A at 750Vrms across an operating temperature range of -55°C to 125°C.

The 646372-1 carries an obsolete product status. Equivalent and substitute parts are available from both TE Connectivity and Amphenol ICC (FCI) manufacturers, offering active product alternatives with identical or enhanced electrical and mechanical specifications.

Substiute Parts

646372-1

TE Connectivity AMP ConnectorsIn Stock: 854646372-1 Datasheet

Current PartRFQ

5646372-1

TE Connectivity AMP ConnectorsIn Stock: 7055646372-1 Datasheet

DirectRFQ

HM2P87PAC135N9LF

Amphenol ICC (FCI)In Stock: 1161HM2P87PAC135N9LF Datasheet

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HM2P87PD8110N9LF

Amphenol ICC (FCI)In Stock: 851HM2P87PD8110N9LF Datasheet

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HM2P87PD8111N9LF

Amphenol ICC (FCI)In Stock: 1155HM2P87PD8111N9LF Datasheet

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HM2P87PDJ1W0N9LF

Amphenol ICC (FCI)In Stock: 764HM2P87PDJ1W0N9LF Datasheet

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HM2P87PKJ1R5GFLF

Amphenol ICC (FCI)In Stock: 828HM2P87PKJ1R5GFLF Datasheet

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HM2P87PN8114GFLF

Amphenol ICC (FCI)In Stock: 1125HM2P87PN8114GFLF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 646372-1 are classified into two categories based on electrical and mechanical compatibility:

Category 1: Direct Equivalents (176-Position Configuration)

Direct equivalents maintain the exact 176-position, 8-row configuration with identical pitch, mounting type, and electrical ratings. These parts are interchangeable for applications requiring the original connector specification.

Qualifying parts: 5646372-1, HM2P87PD8110N9LF, HM2P87PDJ1W0N9LF

Category 2: Enhanced Alternatives (220-Position Configuration)

Enhanced alternatives provide 220 total positions (176 signal + 44 ground) with 8 signal rows plus 2 ground rows. These parts maintain the same 2.00mm pitch, through-hole press-fit termination, and electrical ratings. The additional ground positions provide enhanced grounding capability for applications requiring improved signal integrity.

Qualifying parts: HM2P87PN8114GFLF, HM2P87PD8111N9LF, HM2P87PAC135N9LF, HM2P87PKJ1R5GFLF

Substitution Criteria:

The following parameters determine substitution eligibility:

• Pitch: 0.079" (2.00mm)
• Mounting Type: Through Hole
• Termination: Press-Fit
• Current Rating: 1.5 A minimum
• Voltage Rating: 750Vrms minimum
• Operating Temperature Range: -55°C to 125°C minimum
• Connector Style: D 22
• Contact Finish: Gold

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: 5646372-1

The 5646372-1 from TE Connectivity is the direct active equivalent to the obsolete 646372-1. This part maintains identical electrical specifications, connector configuration, and mechanical form factor. The 5646372-1 carries ROHS3 compliance, representing the current regulatory standard. This part is recommended for direct replacement in existing designs without modification.

Secondary Recommendation: HM2P87PDJ1W0N9LF

The HM2P87PDJ1W0N9LF from Amphenol ICC (FCI) provides a 176-position equivalent from an alternative manufacturer. This part maintains the identical position count, row configuration, and electrical ratings. RoHS compliance is confirmed. Selection of this part is appropriate when supply chain diversification or alternative sourcing is required.

Alternative Recommendation: HM2P87PD8110N9LF

The HM2P87PD8110N9LF from Amphenol ICC (FCI) offers a 176-position configuration with flash gold contact finish. This part is suitable for applications where contact finish thickness variation is acceptable. RoHS compliance is confirmed.

Enhanced Configuration Options: 220-Position Parts

The 220-position variants (HM2P87PN8114GFLF, HM2P87PD8111N9LF, HM2P87PAC135N9LF, HM2P87PKJ1R5GFLF) are applicable only when PCB layout and application requirements accommodate the additional 44 ground positions. These parts provide enhanced grounding architecture while maintaining all electrical and thermal specifications of the original connector. All variants carry RoHS compliance.

Frequently Asked Questions (FAQ)

Q: Can the 5646372-1 be used as a direct replacement for the 646372-1?

A: Yes. The 5646372-1 is the active equivalent of the obsolete 646372-1. Both parts share identical electrical ratings (1.5A, 750Vrms), mechanical configuration (176 positions, 8 rows, 2.00mm pitch), and through-hole press-fit termination. The 5646372-1 carries current ROHS3 compliance.

Q: What is the difference between 176-position and 220-position variants?

A: The 176-position variants (5646372-1, HM2P87PD8110N9LF, HM2P87PDJ1W0N9LF) maintain the original connector configuration with 8 rows of signal contacts. The 220-position variants add 44 dedicated ground positions distributed across 2 additional rows, resulting in an 8+2 row structure. Both configurations maintain 2.00mm pitch and identical electrical ratings. Selection depends on PCB layout and grounding requirements.

Q: Are Amphenol ICC (FCI) parts compatible with TE Connectivity connectors?

A: Amphenol ICC (FCI) Millipacs® series parts (HM2P87 base number) are compatible with TE Connectivity Z-PACK series connectors when electrical and mechanical parameters are identical. Compatibility is determined by pitch (2.00mm), position count, row configuration, termination method (press-fit), and electrical ratings (1.5A, 750Vrms). Physical form factor and mounting interface must be verified for specific applications.

Q: What does "press-fit" termination mean?

A: Press-fit termination is a solderless connection method where connector pins are mechanically pressed into plated through-holes on the PCB. This method provides reliable electrical connection without solder reflow, reducing thermal stress on components and enabling automated assembly processes.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed carry RoHS compliance certification. The original 646372-1 is RoHS Compliant. The 5646372-1 carries ROHS3 Compliant status. All Amphenol ICC (FCI) alternatives carry RoHS Compliant certification.

Q: What is the difference between 30.0µin and flash gold contact finish?

A: Contact finish thickness is specified in microinches (µin). The 30.0µin (0.76µm) specification indicates a defined gold plating thickness of 30 microinches. Flash gold finish indicates a minimal gold coating applied for corrosion protection without a specified thickness measurement. Both finishes provide gold contact surfaces; thickness variation may affect contact wear characteristics in high-cycle applications.

Q: Can I use a 220-position connector in place of a 176-position connector?

A: A 220-position connector can be used only if the PCB layout accommodates the additional 44 ground positions and 2 additional rows. The connector footprint will be larger. Electrical compatibility is maintained, but physical fit and board design must be verified before substitution.

Q: What is the MSL (Moisture Sensitivity Level) rating?

A: All listed parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. These connectors do not require special moisture control during storage, handling, or assembly.