HTMS-120-02-T-S Equivalent & Substitute Parts

Part Overview

The HTMS-120-02-T-S is an unshrouded rectangular connector header manufactured by Samtec Inc., designed for through-hole board-to-board applications. This 20-position header operates at 0.050" (1.27mm) pitch with a 5A per contact current rating and supports operating temperatures from -55°C to 105°C. The part is actively produced and RoHS3 compliant, making it suitable for industrial and commercial applications requiring reliable solder termination connections.

Equivalent parts are identified when they maintain critical electrical and mechanical parameters including pitch, number of positions, contact type, mounting method, and operating temperature range, enabling direct functional substitution in circuit designs.

Substiute Parts

HTMS-120-02-T-S

Samtec Inc.In Stock: 1133HTMS-120-02-T-S Datasheet

Current PartRFQ

6-104178-1

TE Connectivity AMP ConnectorsIn Stock: 29166-104178-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 6-104178-1 (TE Connectivity AMP Connectors) qualifies as an equivalent based on the following critical parameters:

• Identical pitch specification: 0.050" (1.27mm)
• Identical number of positions: 20
• Identical number of rows: 1
• Identical connector type: Header with male pin contacts
• Identical mounting method: Through hole solder termination
• Identical style: Board to board connectivity
• Identical shrouding: Unshrouded
• Identical insulation height: 0.100" (2.54mm)
• Identical contact shape: Square
• Identical overall contact length: 0.320" (8.13mm)
• Identical material flammability rating: UL94 V-0
• Identical insulation color: Black
• Identical moisture sensitivity level: 1 (Unlimited)
• Compatible operating temperature range: -65°C ~ 105°C (exceeds minimum requirement)
• RoHS compliant status maintained

Parameter Comparison

Engineering Selection Recommendations

Both the HTMS-120-02-T-S and 6-104178-1 maintain active product status and meet UL94 V-0 flammability requirements. The TE Connectivity 6-104178-1 provides an extended operating temperature minimum of -65°C compared to the Samtec part's -55°C specification, offering broader thermal performance capability. Both parts are RoHS compliant and carry unlimited moisture sensitivity ratings, suitable for standard industrial storage and handling conditions.

The primary differences are contact finish material (tin versus gold plating) and insulation material composition (LCP versus thermoplastic). These variations do not affect functional substitution for board-to-board header applications where the mechanical and electrical interface parameters remain identical.

Frequently Asked Questions (FAQ)

Q: Can 6-104178-1 directly replace HTMS-120-02-T-S in existing designs?

A: Yes. Both parts share identical pitch (0.050"), position count (20), contact configuration, mounting method, and overall dimensions. The connector footprint and mating interface are functionally equivalent.

Q: What are the differences in contact finish between these parts?

A: The HTMS-120-02-T-S uses tin plating on mating contacts, while the 6-104178-1 uses gold plating (30.0µin thickness). Gold provides enhanced corrosion resistance and lower contact resistance in low-signal applications. Tin is suitable for standard industrial applications.

Q: Are there temperature range considerations for substitution?

A: The 6-104178-1 operates from -65°C to 105°C, exceeding the HTMS-120-02-T-S range of -55°C to 105°C. This makes the TE Connectivity part suitable for applications requiring extended low-temperature performance.

Q: Do packaging differences affect compatibility?

A: The HTMS-120-02-T-S ships in tube packaging while the 6-104178-1 ships in bulk packaging. This affects procurement and handling but does not impact electrical or mechanical compatibility.

Q: Are both parts RoHS compliant?

A: Yes. The HTMS-120-02-T-S is ROHS3 compliant and the 6-104178-1 is RoHS compliant. Both meet environmental regulatory requirements for lead-free manufacturing.

Q: What is the current rating difference?

A: The HTMS-120-02-T-S specifies 5A per contact. The 6-104178-1 does not provide a current rating specification in the available data. For applications requiring confirmed current capacity, the Samtec part provides explicit rating documentation.