PLCC-044-T-N Equivalent & Substitute Parts

Part Overview

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

Substiute Parts

PLCC-044-T-N

Samtec Inc.In Stock: 956PLCC-044-T-N Datasheet

Current PartRFQ

540-88-044-17-400-TR

Preci-DipIn Stock: 2482540-88-044-17-400-TR Datasheet

DirectRFQ

8444-21B1-RK-TP

3MIn Stock: 10168444-21B1-RK-TP Datasheet

SimilarRFQ

D00-044-490-001

Mercury United Electronics, Inc.In Stock: 794D00-044-490-001 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PLCC-044-T-N is determined by strict adherence to the following electrical and mechanical parameters:

• Pin Configuration: 44 positions in 4 x 11 grid arrangement
• Mating Pitch: 0.050" (1.27mm)
• Contact Finish: Tin plating on mating contacts
• Mounting Type: Surface mount solder termination
• Frame Design: Closed frame construction
• Compliance: ROHS3 compliant, UL94 V-0 flammability rating, MSL 1

Three substitute parts meet these core requirements with variations in contact material, housing material, and operating temperature specifications.

Parameter Comparison

Engineering Selection Recommendations

540-88-044-17-400-TR (Preci-Dip) is the primary direct substitute. This part maintains active product status, meets all core electrical and mechanical requirements, and carries ROHS3 compliance with UL94 V-0 flammability rating. The contact resistance specification of 20mOhm is within acceptable tolerance for PLCC socket applications. Tape & Reel packaging supports high-volume production environments.

8444-21B1-RK-TP (3M) serves as an alternative substitute with active product status. This part specifies a narrower operating temperature range (-40°C ~ 105°C) compared to the original PLCC-044-T-N (-55°C ~ 125°C), which may limit suitability for extended temperature applications. ROHS3 compliance and UL94 V-0 rating are maintained. Tube packaging is suitable for lower-volume applications.

D00-044-490-001 (Mercury United Electronics, Inc.) is listed as a similar substitute with active product status and ROHS3 compliance. However, this part specifies tin-lead contact finish rather than pure tin, and multiple electrical and mechanical parameters are not specified in available documentation. This part should be selected only when tin-lead finish is explicitly required and complete specification verification is performed.

Frequently Asked Questions (FAQ)

Q: Can the 540-88-044-17-400-TR replace the PLCC-044-T-N directly?

A: Yes. Both parts share identical pin configuration (44 positions, 4 x 11 grid), mating pitch (0.050"), contact finish (tin), mounting type (surface mount), and frame design (closed frame). The 540-88-044-17-400-TR is active production status, making it the primary substitute for the obsolete PLCC-044-T-N.

Q: What is the difference between the contact materials used in these substitutes?

A: The PLCC-044-T-N uses beryllium copper contacts with 10mOhm resistance. The 540-88-044-17-400-TR uses phosphor bronze contacts with 20mOhm resistance. The 8444-21B1-RK-TP uses copper alloy contacts. All three materials are acceptable for PLCC socket applications; contact resistance differences are within normal operating parameters.

Q: Does the operating temperature range affect substitution?

A: The PLCC-044-T-N operates from -55°C to 125°C. The 8444-21B1-RK-TP operates from -40°C to 105°C. If your application requires operation below -40°C or above 105°C, the 8444-21B1-RK-TP is not suitable. The 540-88-044-17-400-TR does not specify operating temperature limits in available data.

Q: What is the significance of the tin-lead finish on the D00-044-490-001?

A: The D00-044-490-001 specifies tin-lead contact finish, whereas the PLCC-044-T-N and primary substitutes use pure tin finish. Tin-lead finish may be restricted in certain applications subject to ROHS regulations. Verify finish requirements before selecting this part.

Q: How do packaging options affect part selection?

A: The 540-88-044-17-400-TR is supplied in Tape & Reel format, optimized for automated assembly and high-volume production. The 8444-21B1-RK-TP and D00-044-490-001 are supplied in Tube packaging, suitable for manual assembly and lower-volume applications. Packaging selection depends on production volume and assembly equipment compatibility.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed substitutes carry ROHS3 compliance certification and UL94 V-0 flammability rating, matching the compliance profile of the PLCC-044-T-N.