TE Connectivity AMP Connectors 3-530657-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 3-530657-3 is an 86-position female card edge connector with dual read-out configuration, 0.156" (3.96mm) pitch, and gold-plated phosphor bronze contacts. This connector is designed for through-hole solder termination applications with a card thickness range of 0.055" to 0.070" (1.40mm to 1.78mm).

The 3-530657-3 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production and repair requirements for legacy systems utilizing this connector specification.

Substiute Parts

3-530657-3

TE Connectivity AMP ConnectorsIn Stock: 11993-530657-3 Datasheet

Current PartRFQ

305-086-520-202

Mercury United Electronics, Inc.In Stock: 1068305-086-520-202 Datasheet

DirectRFQ

355-086-520-202

Mercury United Electronics, Inc.In Stock: 917355-086-520-202 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TE Connectivity 3-530657-3 are identified based on strict electrical and mechanical compatibility criteria. The following parameters must align for substitution validity:

Critical Matching Parameters:

• Number of positions: 86
• Number of rows: 2
• Pitch: 0.156" (3.96mm)
• Read out configuration: Dual
• Gender: Female
• Card thickness range: 0.054" ~ 0.070" (1.37mm ~ 1.78mm) minimum overlap with original 0.055" ~ 0.070"
• Termination type: Solder
• Contact finish: Gold
• Mounting type: Through Hole
• Flange feature: Flush Mount, Top Opening, Unthreaded, 0.128" (3.25mm) Dia
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute parts identified—Mercury United Electronics 305-086-520-202 and 355-086-520-202—satisfy all critical electrical and mechanical parameters. Both substitutes are active products with current availability, RoHS3 compliance, and extended operating temperature ranges (-40°C ~ 105°C), providing enhanced reliability compared to the obsolete original part.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: Mercury United Electronics 305-086-520-202

The 305-086-520-202 is the preferred substitute for the TE Connectivity 3-530657-3. This part maintains identical electrical and mechanical specifications while offering active product status, RoHS3 compliance, and REACH unaffected certification. The green color matches the original connector, ensuring visual consistency in legacy system applications. The specified operating temperature range of -40°C ~ 105°C provides defined thermal performance parameters absent in the original part specification.

Secondary Substitute: Mercury United Electronics 355-086-520-202

The 355-086-520-202 provides equivalent electrical and mechanical compatibility with identical performance specifications to the 305-086-520-202. The primary distinction is the black insulation color instead of green. This substitute is suitable for applications where color differentiation is not a design requirement or where black connectors are preferred for system organization.

Both Mercury substitutes feature semi-bellows contact design and copper alloy base material with gold plating, providing reliable electrical performance. The reduced contact finish thickness (10.0µin versus 30.0µin on the original) remains within acceptable gold plating specifications for connector applications.

Frequently Asked Questions (FAQ)

Q: Can the Mercury 305-086-520-202 or 355-086-520-202 directly replace the TE Connectivity 3-530657-3 in existing designs?

A: Yes. Both Mercury parts satisfy all critical electrical and mechanical parameters: 86 positions, dual row configuration, 0.156" pitch, female gender, dual read-out, solder termination, gold contact finish, and identical flange geometry. The card thickness range overlap (0.054" ~ 0.070" versus original 0.055" ~ 0.070") ensures compatibility with existing card edge designs.

Q: What is the difference between the 305-086-520-202 and 355-086-520-202?

A: The primary difference is insulation color: the 305-086-520-202 is green, matching the original TE Connectivity part, while the 355-086-520-202 is black. All electrical and mechanical specifications are identical. Selection depends on color coding requirements in your application.

Q: Are the Mercury substitutes RoHS compliant?

A: Yes. Both the 305-086-520-202 and 355-086-520-202 are ROHS3 compliant, whereas the original TE Connectivity 3-530657-3 is RoHS non-compliant. This provides regulatory advantage for new production and updated designs.

Q: What is the significance of the contact finish thickness difference?

A: The original part specifies 30.0µin (0.76µm) gold plating, while the Mercury substitutes specify 10.0µin (0.25µm). Both thicknesses are within standard connector gold plating specifications and provide equivalent corrosion protection and electrical performance for card edge connector applications.

Q: Are operating temperature specifications provided for the original TE Connectivity part?

A: No. The original 3-530657-3 does not specify an operating temperature range. The Mercury substitutes define -40°C ~ 105°C operating range, providing explicit thermal performance parameters for system design and validation.

Q: What is the packaging format for the substitute parts?

A: Both Mercury substitutes are supplied in bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: Are the substitute parts currently in stock?

A: Yes. The 305-086-520-202 has 1007 pieces in stock, and the 355-086-520-202 has 852 pieces in stock, both listed as new original inventory.