A-CCS68-Z-SM-R PLCC 68-Position Socket Equivalent & Substitute Parts

Part Overview

The A-CCS68-Z-SM-R is a 68-position PLCC socket manufactured by Assmann WSW Components, designed for surface mount applications. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance requirements. The socket accommodates 68-pin PLCC packages in a 4 x 17 grid configuration with tin-plated contacts and closed frame design.

Substiute Parts

A-CCS68-Z-SM-R

Assmann WSW ComponentsIn Stock: 1028A-CCS68-Z-SM-R Datasheet

Current PartRFQ

A-CCS 068-Z-SM

Assmann WSW ComponentsIn Stock: 1101A-CCS 068-Z-SM Datasheet

DirectRFQ

8468-21A1-RK-TP

3MIn Stock: 8478468-21A1-RK-TP Datasheet

DirectRFQ

8468-21B1-RK-TP

3MIn Stock: 25928468-21B1-RK-TP Datasheet

MFR RecommendedRFQ

940-44-068-17-400000

Mill-Max Manufacturing Corp.In Stock: 1879940-44-068-17-400000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the A-CCS68-Z-SM-R is determined by strict equivalence across the following critical parameters:

• Type: PLCC socket
• Pin count and grid configuration: 68 positions (4 x 17)
• Mating pitch: 0.050" (1.27mm)
• Post pitch: 0.050" (1.27mm)
• Contact finish: Tin plating on both mating and post surfaces
• Mounting type: Surface mount
• Frame design: Closed frame
• Termination method: Solder
• Flammability rating: UL94 V-0
• Current rating: 1 A
• Moisture sensitivity: MSL 1

All substitute parts listed maintain these core electrical and mechanical parameters, ensuring functional compatibility with the original design.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain functional equivalence to the A-CCS68-Z-SM-R across critical electrical and mechanical parameters. Selection among active alternatives should be based on the following factors:

A-CCS 068-Z-SM (Assmann WSW Components): Direct manufacturer alternative from Assmann WSW. Active product status with ROHS3 compliance. Operating temperature range of -40°C to 105°C is suitable for most applications within the original specification. Lower contact resistance (15mOhm) compared to the main part (30mOhm) provides improved electrical performance.

8468-21A1-RK-TP and 8468-21B1-RK-TP (3M, Series 8400): Both are active products with ROHS3 compliance. Operating temperature range of -40°C to 105°C. The 8468-21B1-RK-TP variant has higher inventory availability (2543 pcs) compared to 8468-21A1-RK-TP (835 pcs). Both use copper alloy contact material with identical electrical specifications.

940-44-068-17-400000 (Mill-Max Manufacturing Corp., Series 940): Active product with ROHS3 compliance. Extended operating temperature range of -55°C to 125°C matches the original part's lower temperature limit and exceeds the upper limit. Contact resistance specification matches the main part (30mOhm). Uses beryllium copper for mating contacts and brass alloy for post contacts.

Frequently Asked Questions (FAQ)

Q: Can I use A-CCS 068-Z-SM as a direct replacement for A-CCS68-Z-SM-R?

A: Yes. Both parts share identical PLCC 68-position configuration, 0.050" pitch, tin contact finish, closed frame design, and solder termination. The primary difference is product status (active vs. obsolete) and housing material composition. Operating temperature range differs by 15°C at the lower end (-40°C vs. -55°C), which is acceptable for most applications.

Q: What are the differences between the 3M 8468-21A1-RK-TP and 8468-21B1-RK-TP models?

A: Both 3M models are electrically and mechanically identical. The primary distinction is inventory availability, with 8468-21B1-RK-TP having significantly higher stock (2543 pcs vs. 835 pcs). Both are active products with ROHS3 compliance and identical operating specifications.

Q: Should I select the Mill-Max 940-44-068-17-400000 for applications requiring extended temperature range?

A: The Mill-Max part supports -55°C to 125°C operating temperature, extending the upper limit by 20°C beyond the original specification. This is appropriate only if your application requires operation above 105°C. For standard applications within -55°C to 105°C, any listed substitute is suitable.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All active substitute parts (A-CCS 068-Z-SM, 8468-21A1-RK-TP, 8468-21B1-RK-TP, and 940-44-068-17-400000) carry ROHS3 compliance certification. The original A-CCS68-Z-SM-R does not specify RoHS status.

Q: What is the significance of contact resistance differences?

A: Contact resistance values are provided for the main part (30mOhm) and A-CCS 068-Z-SM (15mOhm). Lower contact resistance improves signal integrity and reduces power dissipation. The 3M and Mill-Max parts do not specify contact resistance but maintain 1 A current rating across all alternatives.

Q: Can packaging differences affect my selection?

A: The main part does not specify packaging, while all substitutes are supplied in tube packaging. Tube packaging is standard for surface mount sockets and does not affect electrical or mechanical compatibility. Verify your assembly process accommodates tube-packaged components.