Molex 0877582018 Equivalent & Substitute Parts

Part Overview

The Molex 0877582018 is an active rectangular connector header designed for through-hole mounting in board-to-board or cable applications. This unshrouded, breakaway header features 20 positions arranged in 2 rows with 0.079" (2.00mm) pitch spacing. The connector uses male pins with phosphor bronze contacts finished in tin and is housed in a glass-filled polyamide insulation body rated UL94 V-0. With 871 units in current stock and active product status, equivalent and substitute parts are identified to support design flexibility, inventory optimization, and supply chain continuity.

Substiute Parts

0877582018

MolexIn Stock: 9270877582018 Datasheet

Current PartRFQ

MTMM-110-04-G-D-164

Samtec Inc.In Stock: 775MTMM-110-04-G-D-164 Datasheet

MFR RecommendedRFQ

MTMM-110-04-G-D-165

Samtec Inc.In Stock: 1062MTMM-110-04-G-D-165 Datasheet

MFR RecommendedRFQ

MTMM-110-05-L-D-190

Samtec Inc.In Stock: 813MTMM-110-05-L-D-190 Datasheet

MFR RecommendedRFQ

MTMM-110-06-S-D-190

Samtec Inc.In Stock: 760MTMM-110-06-S-D-190 Datasheet

MFR RecommendedRFQ

MTMM-110-07-S-D-200

Samtec Inc.In Stock: 1365MTMM-110-07-S-D-200 Datasheet

MFR RecommendedRFQ

MTMM-110-07-T-D-200

Samtec Inc.In Stock: 1184MTMM-110-07-T-D-200 Datasheet

MFR RecommendedRFQ

MTMM-110-08-S-D-200

Samtec Inc.In Stock: 784MTMM-110-08-S-D-200 Datasheet

MFR RecommendedRFQ

MTMM-110-09-T-D-200

Samtec Inc.In Stock: 898MTMM-110-09-T-D-200 Datasheet

MFR RecommendedRFQ

MTMM-110-10-T-D-200

Samtec Inc.In Stock: 973MTMM-110-10-T-D-200 Datasheet

MFR RecommendedRFQ

MTMM-110-15-T-D-200

Samtec Inc.In Stock: 1124MTMM-110-15-T-D-200 Datasheet

MFR RecommendedRFQ

TMM-110-03-L-D

Samtec Inc.In Stock: 898TMM-110-03-L-D Datasheet

MFR RecommendedRFQ

TMM-110-03-S-D

Samtec Inc.In Stock: 1395TMM-110-03-S-D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Molex 0877582018 are identified from the Samtec MTMM series based on strict alignment of core electrical and mechanical parameters. All substitute parts maintain the following critical specifications:

• Pitch - Mating: 0.079" (2.00mm)
• Number of Positions: 20
• Number of Rows: 2
• Row Spacing - Mating: 0.079" (2.00mm)
• Contact Type: Male Pin
• Mounting Type: Through Hole
• Termination: Solder
• Fastening Type: Push-Pull
• Contact Shape: Square
• Contact Material: Phosphor Bronze
• Insulation Height: 0.059" (1.50mm)
• Material Flammability Rating: UL94 V-0
• RoHS Status: ROHS3 Compliant
• ECCN: EAR99
• HTSUS: 8536.69.4040

Substitutes vary in contact length specifications (mating and post), contact finish composition (gold or tin), insulation material (liquid crystal polymer versus polyamide), and operating temperature ranges. These variations allow selection based on specific application requirements while maintaining core connector functionality and board compatibility.

Parameter Comparison

Engineering Selection Recommendations

All listed Samtec MTMM series connectors are active products with ROHS3 compliance and EAR99 classification, matching the regulatory and compliance profile of the Molex 0877582018. Selection among substitutes depends on specific application requirements:

For applications requiring tin contact finish matching the original specification: MTMM-110-07-T-D-200, MTMM-110-09-T-D-200, MTMM-110-10-T-D-200, and MTMM-110-15-T-D-200 provide direct contact finish compatibility. Among these, MTMM-110-07-T-D-200 offers the closest overall contact length (0.456" versus 0.319" for the original) with the widest operating temperature range (-55°C ~ 105°C) and highest inventory availability (1110 units).

For applications where gold contact finish is acceptable: MTMM-110-04-G-D-164 and MTMM-110-04-G-D-165 provide the most compact profiles with overall contact lengths of 0.323" (8.20mm), closely matching the original 0.319" (8.10mm). Both support the extended operating temperature range of -55°C ~ 125°C.

For applications requiring extended post length: MTMM-110-05-L-D-190, MTMM-110-06-S-D-190, MTMM-110-08-S-D-200, MTMM-110-09-T-D-200, MTMM-110-10-T-D-200, and MTMM-110-15-T-D-200 accommodate deeper PCB mounting or extended solder joint requirements.

All substitutes maintain the core 2.00mm pitch, 20-position, 2-row configuration and through-hole solder termination required for board compatibility with the original Molex connector.

Frequently Asked Questions (FAQ)

Q: Can Samtec MTMM series connectors directly replace the Molex 0877582018 on existing PCBs?

A: Yes, all listed Samtec MTMM substitutes maintain the critical 0.079" (2.00mm) pitch, 20-position, 2-row configuration, and through-hole solder termination. However, variations in overall contact length and post length may affect mating depth and solder joint geometry. Verify PCB pad layout and mating connector specifications before substitution.

Q: What is the difference between tin and gold contact finishes in these connectors?

A: Tin-finished contacts (MTMM-110-07-T-D-200, MTMM-110-09-T-D-200, MTMM-110-10-T-D-200, MTMM-110-15-T-D-200) match the original Molex 0877582018 specification and provide cost efficiency. Gold-finished contacts (MTMM-110-04-G-D-164, MTMM-110-04-G-D-165, MTMM-110-05-L-D-190, MTMM-110-06-S-D-190, MTMM-110-08-S-D-200) offer enhanced corrosion resistance and lower contact resistance, beneficial in high-reliability or harsh environment applications.

Q: How do contact length variations affect connector selection?

A: Contact length determines mating depth and solder joint formation. The original Molex 0877582018 has a mating contact length of 0.157" (4.00mm) and post length of 0.102" (2.60mm). Samtec substitutes range from 0.164" to 0.200" mating length and 0.099" to 0.571" post length. Longer post lengths accommodate thicker PCBs or extended solder joint requirements. Verify PCB thickness and mating connector specifications to ensure proper engagement.

Q: Are all substitutes rated for the same current and voltage?

A: All Samtec MTMM substitutes are rated for 3A current. The original Molex 0877582018 does not specify current or voltage ratings. Samtec substitutes do not specify voltage ratings. Verify application requirements against the 3A current rating before substitution.

Q: What is the difference between breakaway and cuttable connector types?

A: The original Molex 0877582018 is a breakaway header, designed to separate individual positions. Samtec MTMM series connectors are cuttable headers, allowing custom row or position configurations through mechanical cutting. Both types maintain the same pitch and position spacing, ensuring PCB compatibility.

Q: Do all substitutes meet the same compliance standards?

A: Yes, all listed Samtec MTMM substitutes are ROHS3 compliant, EAR99 classified, and rated UL94 V-0 for flammability. Moisture sensitivity level is 1 (Unlimited) for all parts. All substitutes are active products with current manufacturing status.

Q: Which substitute offers the best inventory availability?

A: MTMM-110-07-S-D-200 has the highest inventory with 1310 units in stock, followed by MTMM-110-15-T-D-200 with 1101 units. Both support extended operating temperature ranges and are suitable for general-purpose applications.