TE Connectivity AMP Connectors 2149087-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 2149087-3 is a 3-position rectangular connector receptacle housing with 0.156" (3.96mm) pitch, designed for free-hanging in-line applications. This component belongs to the SL-156 series and features a polarizing key for proper mating orientation. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for continued system support and new production applications.

Substiute Parts

2149087-3

TE Connectivity AMP ConnectorsIn Stock: 9992149087-3 Datasheet

Current PartRFQ

647402-3

TE Connectivity AMP ConnectorsIn Stock: 4245647402-3 Datasheet

Parametric EquivalentRFQ

770849-3

TE Connectivity AMP ConnectorsIn Stock: 2277770849-3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 2149087-3 are identified based on strict parametric equivalence within the rectangular connectors category. The following electrical and mechanical parameters determine substitution eligibility:

Critical Matching Parameters:

• Connector type: Receptacle
• Contact type: Female Socket
• Number of positions: 3
• Pitch: 0.156" (3.96mm)
• Number of rows: 1
• Mounting type: Free Hanging (In-Line)
• Contact termination: Crimp
• Fastening type: Locking Ramp
• Features: Polarizing Key
• Series: SL-156
• RoHS compliance: RoHS Compliant
• MSL rating: 1 (Unlimited)

Both substitute parts 647402-3 and 770849-3 satisfy all critical matching parameters. The primary distinction between the main part and substitutes is product status: the 2149087-3 is obsolete, while both 647402-3 and 770849-3 maintain active product status with current manufacturing availability.

Parameter Comparison

Engineering Selection Recommendations

Both 647402-3 and 770849-3 are direct parametric equivalents to the obsolete 2149087-3. Selection between the two active substitutes is based on the following factors:

647402-3 Characteristics:

• Active product status with highest current inventory availability (4198 units)
• RoHS compliant
• MSL 1 rating
• Bulk packaging
• Operating temperature range: -55°C ~ 105°C
• Polyamide (PA) nylon insulation material

770849-3 Characteristics:

• Active product status with secondary inventory availability (2200 units)
• RoHS compliant
• MSL 1 rating
• Bulk packaging
• Operating temperature range: -55°C ~ 105°C
• Polyamide (PA) nylon insulation material

Both parts maintain identical electrical and mechanical specifications and regulatory compliance. The 647402-3 offers superior supply chain continuity due to higher inventory levels. Both substitutes are suitable for direct replacement in applications previously using the 2149087-3.

Frequently Asked Questions (FAQ)

Q: Can 647402-3 or 770849-3 be used as direct replacements for the obsolete 2149087-3?

A: Yes. Both 647402-3 and 770849-3 are parametric equivalents with identical connector type, contact type, position count, pitch, mounting configuration, termination method, and fastening mechanism. All three parts belong to the SL-156 series and feature polarizing keys for proper mating orientation.

Q: What is the primary difference between the main part and the substitute parts?

A: The 2149087-3 is classified as obsolete, while 647402-3 and 770849-3 maintain active product status with current manufacturing and distribution. The substitutes provide continued availability for new production and legacy system support.

Q: Are there any electrical or mechanical incompatibilities between these parts?

A: No. All three parts share identical specifications for connector type, contact configuration, pitch, mounting type, termination method, and fastening type. Mating compatibility is assured across all three part numbers.

Q: How do the operating temperature ranges compare?

A: The main part 2149087-3 does not specify an operating temperature range. Both substitute parts 647402-3 and 770849-3 specify -55°C ~ 105°C operating temperature range, providing documented thermal performance for system design purposes.

Q: What is the significance of the insulation material specification?

A: The main part 2149087-3 does not specify insulation material. Both substitutes use Polyamide (PA) nylon insulation, which is standard for SL-156 series housings and provides consistent mechanical and electrical properties across all three parts.

Q: Does packaging format affect functional compatibility?

A: No. The packaging format (bulk) does not affect electrical or mechanical compatibility. Packaging differences relate only to order quantity and handling logistics, not component performance or mating characteristics.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both 647402-3 and 770849-3 are RoHS compliant, matching the compliance status of the main part 2149087-3. All three parts meet RoHS requirements for restricted substance limitations.

Q: Which substitute part should be selected for new designs?

A: Both 647402-3 and 770849-3 are suitable for new designs. Selection may be based on supply chain availability, with 647402-3 currently showing higher inventory levels (4198 units versus 2200 units). Both parts provide equivalent performance and regulatory compliance.