MTSW-109-12-T-S-540-RE Equivalent & Substitute Parts

Part Overview

The MTSW-109-12-T-S-540-RE is a rectangular connector header manufactured by Samtec Inc. within the Flex Stack MTSW series. This through-hole, right-angle connector features 9 positions at 0.100" (2.54mm) pitch and is designed for board-to-board or cable applications. The part is currently active in production with 1079 units in stock. Substitute parts are identified to provide alternative sourcing options when the primary part number is unavailable or when inventory requirements necessitate alternative stock sources.

Substiute Parts

MTSW-109-12-T-S-540-RE

Samtec Inc.In Stock: 1103MTSW-109-12-T-S-540-RE Datasheet

Current PartRFQ

MTSW-109-12-T-S-540-RA

Samtec Inc.In Stock: 1180MTSW-109-12-T-S-540-RA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MTSW-109-12-T-S-540-RE is determined by strict equivalence across the following critical parameters:

• Manufacturer: Samtec Inc.
• Series: Flex Stack, MTSW
• Connector Type: Header, Cuttable
• Contact Type: Male Pin
• Number of Positions: 9
• Pitch - Mating: 0.100" (2.54mm)
• Mounting Type: Through Hole, Right Angle
• Contact Length - Mating: 0.540" (13.72mm)
• Contact Length - Post: 0.090" (2.29mm)
• Insulation Height: 0.119" (3.02mm)
• Current Rating: 3A
• Operating Temperature: -55°C ~ 105°C
• Material Flammability Rating: UL94 V-0
• RoHS Status: ROHS3 Compliant

The identified substitute maintains all critical electrical and mechanical parameters, ensuring direct functional equivalence and interchangeability in circuit board applications.

Parameter Comparison

Engineering Selection Recommendations

Both MTSW-109-12-T-S-540-RE and MTSW-109-12-T-S-540-RA are active production parts from Samtec Inc. with identical electrical and mechanical specifications. Both parts maintain ROHS3 compliance and UL94 V-0 flammability certification. Selection between these parts may be based on inventory availability, with MTSW-109-12-T-S-540-RA currently showing 1097 units in stock compared to 1079 units for the primary part number. Both parts are suitable for applications requiring 9-position, 2.54mm pitch through-hole right-angle connectors with 3A current capacity across the -55°C to 105°C operating range.

Frequently Asked Questions (FAQ)

Q: Are MTSW-109-12-T-S-540-RE and MTSW-109-12-T-S-540-RA directly interchangeable?

A: Yes. Both parts share identical electrical and mechanical parameters, including connector type, position count, pitch, mounting configuration, contact dimensions, current rating, and operating temperature range. They are functionally equivalent for circuit board applications.

Q: What determines substitution eligibility for this connector?

A: Substitution is based on strict equivalence across manufacturer, series, connector type, contact type, position count, mating pitch, mounting type, contact dimensions, insulation height, current rating, operating temperature range, and compliance certifications. Any deviation in these parameters disqualifies a part as a direct substitute.

Q: Can I use a different pitch or position count connector as a substitute?

A: No. The 0.100" (2.54mm) pitch and 9-position configuration are critical parameters. Connectors with different pitch or position counts are not substitutes and will not be compatible with existing circuit board layouts.

Q: Are both parts RoHS compliant?

A: Yes. Both MTSW-109-12-T-S-540-RE and MTSW-109-12-T-S-540-RA are ROHS3 compliant and carry UL94 V-0 flammability certification.

Q: What is the maximum current these connectors can handle?

A: Both parts are rated for 3A continuous current.