TE Connectivity AMP Connectors 1571656-6 D-Sub Receptacle Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 1571656-6 is a 25-position D-Sub receptacle connector with female sockets, designed for solder cup termination in free-hanging inline applications. This connector is part of the AMPLIMITE HD-20 series and features a shielded steel shell with tin plating and gold-plated contacts.

The 1571656-6 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support legacy system maintenance and repairs.

Substiute Parts

1571656-6

TE Connectivity AMP ConnectorsIn Stock: 9021571656-6 Datasheet

Current PartRFQ

L77SDBH25SC309

Amphenol ICC (Commercial Products)In Stock: 1073L77SDBH25SC309 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 1571656-6 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector style: D-Sub
• Connector type: Receptacle, Female Sockets
• Number of positions: 25
• Number of rows: 2
• Shell size and connector layout: 3 (DB, B)
• Mounting type: Free Hanging (In-Line)
• Termination method: Solder Cup
• Shell material and finish: Steel, Tin Plated
• Contact finish: Gold
• Current rating: 3A
• Voltage rating: 250V
• Operating temperature range: -55°C ~ 105°C
• Material flammability rating: UL94 V-0
• RoHS compliance: Required

The Amphenol ICC L77SDBH25SC309 satisfies all mandatory matching parameters and is classified as an active product, providing improved supply availability compared to the obsolete 1571656-6.

Parameter Comparison

Engineering Selection Recommendations

The Amphenol ICC L77SDBH25SC309 is a direct functional equivalent to the TE Connectivity 1571656-6. Both connectors meet identical electrical specifications, mechanical dimensions, and regulatory requirements.

Supply Status Consideration: The L77SDBH25SC309 is classified as active product status with 1019 units in stock, compared to the 1571656-6 which is obsolete with 857 units in stock. For new designs and ongoing production requirements, the L77SDBH25SC309 provides assured long-term availability.

Compliance Alignment: Both parts are RoHS compliant, carry UL94 V-0 flammability ratings, and share identical ECCN and HTSUS classifications, ensuring regulatory and trade compliance equivalence.

Contact Finish Thickness Variance: The L77SDBH25SC309 features a gold contact finish thickness of 30.0µin (0.76µm) compared to 8.00µin (0.203µm) on the 1571656-6. This increased thickness on the substitute part provides enhanced contact durability and wear resistance without affecting electrical performance or compatibility.

Frequently Asked Questions (FAQ)

Q: Can the Amphenol ICC L77SDBH25SC309 be used as a direct replacement for the TE Connectivity 1571656-6?

A: Yes. The L77SDBH25SC309 meets all critical electrical, mechanical, and regulatory parameters required for direct substitution. Both connectors are 25-position D-Sub receptacles with identical shell size, mounting configuration, termination method, and performance ratings.

Q: What is the significance of the contact finish thickness difference between these two parts?

A: The L77SDBH25SC309 has a thicker gold plating (30.0µin versus 8.00µin). This increased thickness enhances contact durability and resistance to wear during mating cycles and environmental exposure. This difference does not affect electrical compatibility or performance in equivalent applications.

Q: Why is the TE Connectivity 1571656-6 listed as obsolete?

A: Product obsolescence reflects manufacturer discontinuation decisions. The Amphenol ICC L77SDBH25SC309 provides functional equivalence with active product status, ensuring continued availability for replacement and new applications.

Q: Are there packaging differences between these connectors?

A: The TE Connectivity 1571656-6 packaging specification is not provided in the technical data. The Amphenol ICC L77SDBH25SC309 is supplied in tray packaging. Confirm packaging requirements with your procurement specifications.

Q: Do both connectors support the same operating temperature range?

A: Yes. Both the 1571656-6 and L77SDBH25SC309 operate across the identical temperature range of -55°C to 105°C, ensuring thermal compatibility in equivalent applications.

Q: Are there any regulatory or compliance differences between these parts?

A: No. Both connectors are RoHS compliant, carry UL94 V-0 flammability ratings, and share identical ECCN (EAR99) and HTSUS (8536.69.8000) classifications. They are equivalent for regulatory and trade purposes.