MTMM-101-04-G-S-250 Equivalent & Substitute Parts

Part Overview

The MTMM-101-04-G-S-250 is a rectangular connector header manufactured by Samtec Inc., designed for through-hole board-to-board or cable applications. This single-position, unshrouded header connector features a vertical orientation with solder termination and push-pull fastening. The part is currently active in production with 734 units in stock. Equivalent and substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits component substitution within specified electrical and mechanical parameters.

Substiute Parts

MTMM-101-04-G-S-250

Samtec Inc.In Stock: 795MTMM-101-04-G-S-250 Datasheet

Current PartRFQ

NRPN011PAEN-RC

Sullins Connector SolutionsIn Stock: 4671NRPN011PAEN-RC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MTMM-101-04-G-S-250 is determined by the following critical parameters:

Core Functional Parameters:

• Single position (1 position, 1 row) configuration
• Male pin contact type
• Through-hole mounting with solder termination
• Push-pull fastening mechanism
• Unshrouded header design
• Board-to-board or cable connection style

Electrical Parameters:

• Gold-plated mating contact finish
• Current rating of 3A or higher
• Operating temperature range encompassing -55°C to 125°C or equivalent thermal capability

Mechanical Parameters:

• Overall contact length within acceptable tolerance for PCB assembly
• Square contact shape
• Insulation material compatible with UL94 V-0 flammability rating

Compliance Parameters:

• ROHS3 compliance
• Active product status

The substitute part NRPN011PAEN-RC from Sullins Connector Solutions meets the core functional requirements of a single-position, through-hole male pin header with solder termination and push-pull fastening. However, specific electrical and mechanical parameters differ and must be evaluated for application compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the MTMM-101-04-G-S-250 and NRPN011PAEN-RC are active products with ROHS3 compliance and UL94 V-0 flammability ratings, meeting baseline regulatory requirements for rectangular connector applications.

MTMM-101-04-G-S-250 (Primary Part):

• Supports higher current rating (3A vs. 2A)
• Extended operating temperature range (-55°C to 125°C vs. -40°C to 105°C)
• Phosphor bronze contact material with LCP insulation
• MSL rating of 1 (Unlimited) indicates superior moisture resistance
• Longer mating contact length (0.250" vs. 0.141")

NRPN011PAEN-RC (Substitute Part):

• Lower current rating (2A) limits application scope
• Restricted operating temperature range (-40°C to 105°C)
• Brass contact material with polyamide insulation
• Specified voltage rating of 150V
• Shorter mating contact length affects mating depth

Selection between these parts must be based on application requirements for current capacity, temperature extremes, and contact engagement depth. The MTMM-101-04-G-S-250 is suitable for applications requiring higher current handling or extended temperature operation. The NRPN011PAEN-RC may be considered only when application parameters fall within its electrical and thermal specifications.

Frequently Asked Questions (FAQ)

Q: Can NRPN011PAEN-RC directly replace MTMM-101-04-G-S-250 in all applications?

A: No. The NRPN011PAEN-RC has a lower current rating (2A vs. 3A) and a narrower operating temperature range (-40°C to 105°C vs. -55°C to 125°C). Substitution is only valid when application requirements fall within the NRPN011PAEN-RC specifications.

Q: What is the significance of the different contact materials (Phosphor Bronze vs. Brass)?

A: Contact material affects electrical conductivity, durability, and spring characteristics. Phosphor bronze in the MTMM-101-04-G-S-250 provides enhanced mechanical properties and contact reliability. Brass in the NRPN011PAEN-RC offers different electrical characteristics and cost considerations.

Q: Why is the mating contact length different between these parts?

A: The MTMM-101-04-G-S-250 has a mating contact length of 0.250" (6.35mm), while the NRPN011PAEN-RC has 0.141" (3.60mm). This difference affects the depth of engagement with mating connectors and may impact mechanical fit and electrical contact reliability in specific PCB designs.

Q: Are both parts suitable for high-temperature applications?

A: The MTMM-101-04-G-S-250 supports operation up to 125°C, making it suitable for high-temperature environments. The NRPN011PAEN-RC is limited to 105°C maximum operating temperature and is not suitable for applications requiring extended high-temperature operation.

Q: What does MSL 1 (Unlimited) mean for the MTMM-101-04-G-S-250?

A: MSL 1 (Unlimited) indicates that the component has unlimited shelf life and does not require special moisture-controlled storage or handling procedures prior to assembly, providing greater flexibility in inventory management.

Q: Are both parts RoHS compliant?

A: Yes, both the MTMM-101-04-G-S-250 and NRPN011PAEN-RC are ROHS3 compliant, meeting regulatory requirements for restricted hazardous substances in electronic components.