MMT-122-01-S-DH Equivalent & Substitute Parts

Part Overview

The MMT-122-01-S-DH is a surface mount, right-angle rectangular connector header manufactured by Samtec Inc. This connector is designed for board-to-board or cable applications with 44 positions arranged in 2 rows at 0.079" (2.00mm) pitch. The part is currently active in production with 835 units in stock. Alternative part numbers may be required due to inventory availability, specific manufacturing lot requirements, or application-specific feature needs such as pick-and-place optimization.

Substiute Parts

MMT-122-01-S-DH

Samtec Inc.In Stock: 915MMT-122-01-S-DH Datasheet

Current PartRFQ

MMT-122-01-S-DH-K

Samtec Inc.In Stock: 1089MMT-122-01-S-DH-K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The MMT-122-01-S-DH has one qualified substitute part: MMT-122-01-S-DH-K. Both parts share identical electrical and mechanical specifications across all critical parameters that determine functional compatibility:

• Connector type, contact configuration, and position count (44-position, 2-row header)
• Pitch and row spacing (0.079" / 2.00mm)
• Mounting style (surface mount, right angle)
• Contact material, finish, and current rating (3A)
• Operating temperature range (-55°C ~ 125°C)
• Insulation material and flammability rating (LCP, UL94 V-0)
• RoHS3 compliance and MSL rating

The substitute part includes an additional feature designation (Pick and Place) and carries REACH Unaffected status. Both parts are manufactured by Samtec Inc. within the same MMT series and share the same base product number (MMT-122).

Parameter Comparison

Engineering Selection Recommendations

Both MMT-122-01-S-DH and MMT-122-01-S-DH-K are active production parts with full ROHS3 compliance and UL94 V-0 flammability certification. Selection between these parts should be based on inventory availability and manufacturing requirements. The MMT-122-01-S-DH-K variant includes pick-and-place feature optimization and carries REACH Unaffected status, making it suitable for automated assembly environments where this feature is beneficial. Both parts meet identical electrical and mechanical specifications for direct substitution in board-to-board connector applications.

Frequently Asked Questions (FAQ)

Q: Are MMT-122-01-S-DH and MMT-122-01-S-DH-K electrically and mechanically interchangeable?

A: Yes. Both parts share identical specifications for connector type, position count, pitch, row spacing, mounting style, contact material and finish, current rating, operating temperature range, and insulation material. They are direct substitutes for each other.

Q: What is the difference between these two part numbers?

A: The MMT-122-01-S-DH-K includes a pick-and-place feature designation and carries REACH Unaffected status. The electrical and mechanical performance is identical between both parts.

Q: Can I use either part in my PCB design without layout modifications?

A: Yes. Both parts have identical footprint requirements, pitch spacing (0.079" / 2.00mm), and mounting orientation (surface mount, right angle). No PCB layout changes are required when substituting between these parts.

Q: What is the current rating for this connector?

A: Both parts are rated for 3A per contact.

Q: Are these parts RoHS compliant?

A: Yes. Both MMT-122-01-S-DH and MMT-122-01-S-DH-K are ROHS3 compliant.

Q: What is the operating temperature range?

A: Both parts operate from -55°C to 125°C.

Q: Which part should I select if both are available?

A: Selection should be based on inventory availability and manufacturing process requirements. If automated pick-and-place assembly is used, the MMT-122-01-S-DH-K variant may provide process optimization benefits.