40RF-JMCS-G-1-TF(N)(LF)(SN) Equivalent & Substitute Parts

Part Overview

The 40RF-JMCS-G-1-TF(N)(LF)(SN) is a 40-position rectangular connector receptacle manufactured by JST Sales America Inc. This surface mount component features center strip contacts with gold plating and is designed for high-density interconnect applications. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing production support, design updates, and inventory management.

Substiute Parts

40RF-JMCS-G-1-TF(N)(LF)(SN)

JST Sales America Inc.In Stock: 95540RF-JMCS-G-1-TF(N)(LF)(SN) Datasheet

Current PartRFQ

DF17(3.0)-40DS-0.5V(57)

Hirose Electric Co LtdIn Stock: 2083DF17(3.0)-40DS-0.5V(57) Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 40RF-JMCS-G-1-TF(N)(LF)(SN) is determined by strict alignment of the following critical parameters:

• Connector Type: Receptacle with center strip contacts
• Position Count: 40 positions
• Pitch Specification: 0.020" (0.50mm)
• Row Configuration: 2 rows
• Mounting Technology: Surface mount
• Contact Material: Gold plating
• Regulatory Compliance: ROHS3 compliant
• Moisture Sensitivity: MSL 1 or better

The DF17(3.0)-40DS-0.5V(57) from Hirose Electric Co Ltd meets all substitution criteria. Both parts share identical functional specifications for position count, pitch, row configuration, mounting type, and contact finish. Both maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility in equivalent applications.

Parameter Comparison

Engineering Selection Recommendations

The DF17(3.0)-40DS-0.5V(57) is the qualified substitute for the obsolete 40RF-JMCS-G-1-TF(N)(LF)(SN). Selection is based on the following factors:

Functional Equivalence: Both parts maintain identical electrical and mechanical specifications across all critical parameters including position count, pitch, row configuration, and contact finish.

Regulatory Compliance: Both parts are ROHS3 compliant and carry MSL 1 rating, ensuring compatibility with current manufacturing and environmental standards.

Product Availability: The Hirose part maintains active production status with confirmed inventory availability (1998 pcs), whereas the JST part is obsolete. This availability differential supports long-term supply chain continuity.

Physical Compatibility: The height above board differential of 0.008" (0.20mm) between the two parts falls within typical PCB design tolerances for surface mount applications and does not preclude direct substitution in equivalent circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the DF17(3.0)-40DS-0.5V(57) be used as a direct replacement for the 40RF-JMCS-G-1-TF(N)(LF)(SN)?

A: Yes. Both parts share identical specifications for connector type, position count, pitch, row configuration, mounting type, and contact finish. The 0.008" height differential does not impact electrical performance or standard PCB layout compatibility.

Q: What is the significance of the obsolete status of the JST part?

A: Obsolete status indicates the manufacturer has discontinued production. The Hirose substitute maintains active production status, ensuring ongoing availability for new designs and production support.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both parts are ROHS3 compliant and carry MSL 1 (Unlimited) rating, meeting current manufacturing and environmental standards.

Q: What packaging options are available for the substitute part?

A: The DF17(3.0)-40DS-0.5V(57) is supplied in Tape & Reel (TR) packaging, standard for high-volume surface mount production.

Q: Does the Hirose part include additional features compared to the JST part?

A: The Hirose DF17(3.0)-40DS-0.5V(57) includes a board guide feature in addition to solder retention, providing enhanced mechanical stability during assembly operations.