Cinch Connectivity Solutions 50-15A-20 Card Edge Connector Equivalent & Substitute Parts

Part Overview

The Cinch Connectivity Solutions 50-15A-20 is a 15-position female card edge connector with 0.156" (3.96mm) pitch, designed for single-edge card applications. This connector features gold-plated bifurcated semi-bellows contacts, panel mount configuration, and operates across -65°C to 105°C. The part is Active status and RoHS Compliant, with 1001 units currently in stock.

Equivalent and substitute parts are identified when design requirements permit tolerance of specific parameter variations while maintaining functional compatibility within the card edge connector category.

Substiute Parts

50-15A-20

Cinch Connectivity SolutionsIn Stock: 104750-15A-20 Datasheet

Current PartRFQ

306-015-500-102

Mercury United Electronics, Inc.In Stock: 1117306-015-500-102 Datasheet

DirectRFQ

356-015-500-102

Mercury United Electronics, Inc.In Stock: 891356-015-500-102 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 50-15A-20 is permitted only when the following critical parameters remain within specification:

• Pitch: 0.156" (3.96mm) — must match exactly
• Gender: Female — must match exactly
• Mounting Type: Panel Mount — must match exactly
• Termination: Solder Eyelet(s) — must match exactly
• Contact Finish: Gold — must match exactly
• Contact Finish Thickness: 10.0µin (0.25µm) — must match exactly
• Flange Feature: Flush Mount, Top Opening, Unthreaded, 0.128" (3.25mm) Dia — must match exactly

Variations permitted in substitute parts:

• Number of Positions: 15 (main part) to 30 (substitute parts) — acceptable when design accommodates increased position count
• Card Type: Single Edge (main part) to Dual Edge (substitute parts) — acceptable when card edge configuration is compatible
• Number of Rows: 1 (main part) to 2 (substitute parts) — acceptable when dual-row configuration is compatible
• Contact Type: Bifurcated Semi Bellows (main part) to Cantilever (substitute parts) — acceptable when contact spring characteristics are compatible
• Contact Material: Brass (main part) to Copper Alloy (substitute parts) — acceptable when electrical conductivity requirements are met
• Operating Temperature: -65°C ~ 105°C (main part) to -40°C ~ 105°C (substitute parts) — acceptable when minimum operating temperature of -40°C is sufficient
• Insulation Material: Polyester Glass Filled (main part) to Polyester Thermoplastic (substitute parts) — acceptable when thermal and mechanical properties are compatible
• Color: Green (main part) to Black (substitute parts) — acceptable when color coding is not a functional requirement
• Manufacturer: Cinch Connectivity Solutions (main part) to Mercury United Electronics, Inc. (substitute parts) — acceptable when cross-manufacturer compatibility is verified

Parameter Comparison

Engineering Selection Recommendations

Both Mercury United Electronics substitute parts (306-015-500-102 and 356-015-500-102) maintain Active product status and meet or exceed compliance requirements of the primary part. Both substitutes are ROHS3 Compliant, exceeding the RoHS Compliant status of the main part. All three parts share identical ECCN (EAR99) and HTSUS (8536.69.4040) classifications, and all maintain MSL 1 (Unlimited) moisture sensitivity ratings.

The 306-015-500-102 (green) and 356-015-500-102 (black) differ only in insulation color. Selection between these two substitutes depends on color-coding requirements within the application. Both substitutes provide dual-edge, 30-position configurations with dual-row termination, representing a functional superset of the single-edge, 15-position main part.

The operating temperature range reduction from -65°C to -40°C minimum in substitute parts must be evaluated against application requirements. If operation below -40°C is required, the main part 50-15A-20 remains the only suitable option.

Frequently Asked Questions (FAQ)

Q: Can the 306-015-500-102 or 356-015-500-102 be used as direct replacements for the 50-15A-20?

A: Direct replacement is possible only when the application design accommodates the increased position count (30 vs. 15), dual-edge card configuration, dual-row termination, and the reduced minimum operating temperature (-40°C vs. -65°C). The identical pitch (0.156"), gold contact finish, panel mount configuration, and solder eyelet termination ensure mechanical and electrical compatibility at the connector interface level.

Q: What is the primary difference between the 306-015-500-102 and 356-015-500-102?

A: The 306-015-500-102 features green insulation, while the 356-015-500-102 features black insulation. All other electrical and mechanical parameters are identical. Selection depends on color-coding or visual identification requirements within the application.

Q: Are the substitute parts compatible with single-edge cards?

A: The substitute parts are designed for dual-edge card configurations. While the 0.156" pitch and contact geometry remain compatible, the dual-edge design and dual-row termination represent a different mechanical interface than the single-edge main part. Application compatibility must be verified based on card edge design.

Q: What is the significance of the contact type difference (Bifurcated Semi Bellows vs. Cantilever)?

A: Contact type affects spring force, contact pressure, and wear characteristics. Bifurcated semi-bellows contacts provide dual contact points per position, while cantilever contacts provide single contact points. Both designs maintain gold plating at 10.0µin thickness and are suitable for 0.156" pitch applications. Contact type selection depends on insertion force, contact resistance, and durability requirements specific to the application.

Q: Do the substitute parts meet the same compliance standards as the main part?

A: The substitute parts exceed the compliance standards of the main part. Both substitutes are ROHS3 Compliant (vs. RoHS Compliant for the main part), indicating compliance with the latest RoHS directive. All three parts share identical ECCN and HTSUS classifications. The substitute parts include REACH Unaffected status, providing additional regulatory documentation.

Q: What inventory considerations apply to these parts?

A: The main part 50-15A-20 has 1001 units in stock. The 306-015-500-102 has 1010 units in stock. The 356-015-500-102 has 806 units in stock. All parts are listed as New Original In Stock with Bulk packaging.