PLCC-044-F-N Equivalent & Substitute Parts

Part Overview

The PLCC-044-F-N is a 44-position PLCC socket manufactured by Samtec Inc., designed for surface mount applications with gold-plated mating contacts. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The socket accommodates 44-pin PLCC packages in a 4 x 11 grid configuration with 0.050" (1.27mm) mating pitch and closed frame design.

Substiute Parts

PLCC-044-F-N

Samtec Inc.In Stock: 851PLCC-044-F-N Datasheet

Current PartRFQ

940-44-044-17-400000

Mill-Max Manufacturing Corp.In Stock: 3353940-44-044-17-400000 Datasheet

SimilarRFQ

940-44-044-17-400004

Mill-Max Manufacturing Corp.In Stock: 1089940-44-044-17-400004 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PLCC-044-F-N is determined by the following critical parameters that must remain consistent:

• Position Count & Grid: 44 positions in 4 x 11 configuration
• Mating Pitch: 0.050" (1.27mm)
• Socket Type: PLCC with closed frame design
• Mounting Method: Surface mount termination
• Operating Temperature Range: -55°C ~ 125°C
• Flammability Rating: UL94 V-0
• Compliance: ROHS3 Compliant

The substitute parts identified (940-44-044-17-400000 and 940-44-044-17-400004) maintain these core parameters. The primary difference is the contact finish material on the mating surface: the original part features gold plating, while substitutes use tin plating. Both finishes are acceptable for PLCC socket applications within the specified electrical and mechanical constraints.

Parameter Comparison

Engineering Selection Recommendations

Both Mill-Max substitute parts (940-44-044-17-400000 and 940-44-044-17-400004) are active products with current manufacturing support, addressing the obsolescence of the original PLCC-044-F-N. Both substitutes maintain ROHS3 compliance and UL94 V-0 flammability certification.

The selection between the two Mill-Max options depends on procurement requirements:

• 940-44-044-17-400000: Supplied in Tube packaging, suitable for lower-volume applications and manual assembly processes.
• 940-44-044-17-400004: Supplied in Tape & Reel (TR) packaging, optimized for automated assembly and higher-volume production runs.

Both parts are electrically and mechanically compatible with the original PLCC-044-F-N within the specified operating parameters. The tin contact finish on both substitutes is functionally equivalent to the gold finish of the original part for PLCC socket applications.

Frequently Asked Questions (FAQ)

Q: Can the Mill-Max 940-44-044-17-400000 and 940-44-044-17-400004 be used interchangeably with the PLCC-044-F-N?

A: Yes. Both Mill-Max parts maintain the critical parameters: 44-position PLCC configuration, 0.050" (1.27mm) mating pitch, surface mount design, closed frame construction, and operating temperature range of -55°C ~ 125°C. Both are ROHS3 compliant and UL94 V-0 rated.

Q: What is the difference between the two Mill-Max substitute parts?

A: The primary difference is packaging format. The 940-44-044-17-400000 is supplied in Tube packaging, while the 940-44-044-17-400004 is supplied in Tape & Reel (TR) format. Both parts are electrically and mechanically identical.

Q: Does the tin contact finish on the substitute parts affect performance compared to the gold finish on the original?

A: No. Both tin and gold finishes are acceptable for PLCC socket mating surfaces. The tin finish on the Mill-Max substitutes (150.0µin / 3.81µm thickness) provides equivalent electrical and mechanical performance within the specified operating parameters.

Q: Are the substitute parts suitable for the same operating temperature range?

A: The 940-44-044-17-400000 is rated for -55°C ~ 125°C, matching the original part. The 940-44-044-17-400004 does not specify an operating temperature range in the provided data; confirm this parameter with the manufacturer if required for your application.

Q: What is the contact resistance specification for the substitute parts?

A: The 940-44-044-17-400000 specifies 30mOhm contact resistance. The 940-44-044-17-400004 does not provide contact resistance data in the available specifications.