TE Connectivity AMP Connectors 177827-1 SIMM Memory Socket Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 177827-1 is a 72-position SIMM RAM socket connector designed for surface mount applications. This connector features a 20° insertion angle and is part of the Mini Memory Module (M3) series. The part maintains active product status and is currently in stock with 1018 units available. Alternative equivalent parts are necessary to address specific compliance requirements, inventory availability, or manufacturing specifications that may vary between production batches or procurement timelines.

Substiute Parts

177827-1

TE Connectivity AMP ConnectorsIn Stock: 1046177827-1 Datasheet

Current PartRFQ

5177827-1

TE Connectivity AMP ConnectorsIn Stock: 7695177827-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between the main part 177827-1 and the equivalent part 5177827-1 is determined by the following critical parameters:

Critical Matching Parameters:

• Connector Style: SIMM
• Number of Positions: 72
• Memory Type: RAM
• Mounting Type: Surface Mount
• Series: Mini Memory Module (M3)
• Features: Board Guide, Latches
• Contact Finish: Gold
• Contact Finish Thickness: 11.8µin (0.30µm)
• Moisture Sensitivity Level: 1 (Unlimited)
• ECCN Classification: EAR99
• HTSUS Code: 8536.69.4040

Variable Parameters Affecting Substitution:

• Insertion Angle: 177827-1 specifies 20° Angle; 5177827-1 specifies Right Angle
• RoHS Compliance: 177827-1 is RoHS non-compliant; 5177827-1 is ROHS3 Compliant
• REACH Status: 177827-1 is REACH Affected; 5177827-1 is REACH Unaffected
• Mechanical Dimensions: 177827-1 provides Card Thickness (0.039" / 1.00mm) and Height (0.217" / 5.50mm); 5177827-1 does not specify these dimensions

Both parts share identical electrical and functional specifications for SIMM socket operation. The primary differences relate to insertion angle geometry, regulatory compliance status, and dimensional documentation.

Parameter Comparison

Engineering Selection Recommendations

Selection Criteria Based on Compliance and Product Status:

Both 177827-1 and 5177827-1 maintain active product status and are manufactured by TE Connectivity AMP Connectors. The selection between these parts depends on specific regulatory and compliance requirements:

Choose 177827-1 when:

• RoHS non-compliant designs are acceptable for the application
• REACH-affected component sourcing is permitted
• 20° insertion angle geometry is required for the PCB layout
• Higher inventory availability is prioritized (1018 units in stock)

Choose 5177827-1 when:

• ROHS3 compliance is mandatory for the end application
• REACH-unaffected component sourcing is required
• Right angle insertion geometry is compatible with the PCB design
• Regulatory compliance takes precedence over inventory availability

Both parts are electrically and functionally equivalent for 72-position SIMM RAM socket applications. The insertion angle difference (20° versus Right Angle) represents a mechanical design consideration that must align with the specific PCB layout and module insertion requirements. Compliance status differences reflect manufacturing process changes and material composition updates between part revisions.

Frequently Asked Questions (FAQ)

Q: Are 177827-1 and 5177827-1 electrically interchangeable?

A: Both parts function identically as 72-position SIMM RAM sockets with gold-plated contacts and identical electrical specifications. Electrical interchangeability is confirmed. Mechanical interchangeability depends on insertion angle compatibility with the PCB design.

Q: What is the difference between 20° Angle and Right Angle insertion?

A: The insertion angle refers to the mechanical geometry of the socket relative to the PCB surface. The 20° angle (177827-1) positions the SIMM module at a 20-degree angle during insertion, while the Right Angle (5177827-1) positions the module perpendicular to the PCB. The correct angle must match the PCB layout and module retention mechanism design.

Q: Why does 5177827-1 have ROHS3 compliance while 177827-1 does not?

A: ROHS3 compliance indicates that the part meets Restriction of Hazardous Substances Directive requirements. This reflects a manufacturing process or material composition update in the 5177827-1 revision. The 177827-1 part predates or does not meet these specific compliance requirements.

Q: What does REACH Affected versus REACH Unaffected mean?

A: REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) status indicates whether the component contains substances of concern. 177827-1 is REACH Affected, meaning it may contain regulated substances. 5177827-1 is REACH Unaffected, indicating compliance with REACH chemical restrictions. Selection depends on end-market regulatory requirements.

Q: Can I substitute 5177827-1 for 177827-1 in an existing design?

A: Substitution is possible only if the PCB layout accommodates the Right Angle insertion geometry and if ROHS3 compliance does not conflict with existing design specifications. The insertion angle difference is the primary mechanical consideration. Verify PCB socket mounting orientation and module insertion path before substitution.

Q: Why are the Card Thickness and Height specifications missing for 5177827-1?

A: The provided data for 5177827-1 does not include Card Thickness (0.039" / 1.00mm) and Height (0.217" / 5.50mm) specifications. These dimensions are documented for 177827-1. Contact the manufacturer for complete dimensional specifications if these parameters are critical for your application.

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

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

Q: Are both parts currently available for procurement?

A: Yes. 177827-1 has 1018 units in stock, and 5177827-1 has 698 units in stock. Inventory availability may vary based on procurement timing and supplier allocation.