M20-7870542R Equivalent & Substitute Parts

Part Overview

The M20-7870542R is a 10-position rectangular receptacle connector manufactured by Harwin Inc., designed for board-to-board or cable applications with 0.100" (2.54mm) pitch spacing. This connector features surface mount solder termination, gold-plated mating contacts, and push-pull fastening. The part is currently listed as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement.

Substiute Parts

M20-7870542R

Harwin Inc.In Stock: 982M20-7870542R Datasheet

Current PartRFQ

M20-7870542

Harwin Inc.In Stock: 1370M20-7870542 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the M20-7870542R is determined by strict equivalence across the following critical parameters:

• Connector type: Receptacle, bottom or top entry
• Contact configuration: Female socket, 10 positions in 2 rows
• Pitch specification: 0.100" (2.54mm) mating pitch with 0.100" row spacing
• Mounting method: Surface mount with solder termination
• Electrical ratings: 3A current, 1000V voltage
• Contact material and finish: Phosphor bronze with gold mating surface and tin post finish
• Operating temperature range: -40°C to 105°C
• Insulation material: Polyamide (PA6T), Nylon 6T
• Flammability rating: UL94 V-0

The M20-7870542 (without the "R" suffix) is identified as the active equivalent part within the same M20 series, maintaining identical electrical and mechanical specifications while offering current production availability.

Parameter Comparison

Engineering Selection Recommendations

The M20-7870542 is the direct active equivalent for the obsolete M20-7870542R. Both parts are manufactured by Harwin Inc. within the M20 series and maintain identical electrical and mechanical specifications across all critical parameters. The substitute part is currently in active production status with confirmed inventory availability (1273 pcs), whereas the original part is obsolete.

The M20-7870542 carries ROHS3 compliance certification, providing regulatory advantage for new designs and procurement cycles. Both parts maintain identical UL94 V-0 flammability ratings, operating temperature ranges, and contact specifications, ensuring direct functional interchangeability in existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can M20-7870542 directly replace M20-7870542R in existing designs?

A: Yes. Both parts are identical in electrical and mechanical specifications, including connector type, position count, pitch spacing, mounting method, contact materials, and ratings. The primary difference is product status: M20-7870542R is obsolete while M20-7870542 is active production.

Q: What is the difference between the "R" and non-"R" part numbers?

A: The provided data indicates M20-7870542R is obsolete while M20-7870542 is active. Both maintain identical specifications across all measured parameters. The suffix distinction reflects production status rather than functional or electrical differences.

Q: Are there packaging differences between these parts?

A: The M20-7870542 is supplied in tube packaging. The original M20-7870542R packaging specification is not provided in the available data. Verify packaging requirements for your procurement process.

Q: Does the substitute part meet current compliance standards?

A: The M20-7870542 is ROHS3 compliant and maintains REACH Unaffected status. Both parts carry UL94 V-0 flammability certification and identical moisture sensitivity level (MSL 1 - Unlimited).

Q: What are the mated stacking heights for this connector?

A: Both the M20-7870542R and M20-7870542 specify mated stacking heights of 10.04mm and 11.63mm, depending on mating configuration.

Q: Is this connector suitable for industrial applications?

A: Yes. Both parts are rated for general purpose, industrial, and telecommunications applications with 3A current capacity and 1000V voltage rating across the -40°C to 105°C operating temperature range.