Equivalent & Substitute Parts for TFM-105-22-S-D

Part Overview

The Samtec TFM-105-22-S-D is a surface mount rectangular connector header from the Tiger Eye™ TFM series, designed for board-to-board or cable applications. This 10-position, 2-row connector operates at 0.050" (1.27mm) pitch with shrouded 4-wall construction and push-pull fastening. The part is currently active in production with full inventory availability. Equivalent and substitute parts are identified to support design flexibility, supply chain continuity, and application-specific requirements.

Substiute Parts

TFM-105-22-S-D

Samtec Inc.In Stock: 809TFM-105-22-S-D Datasheet

Current PartRFQ

104693-1

TE Connectivity AMP ConnectorsIn Stock: 777104693-1 Datasheet

SimilarRFQ

5-104693-1

TE Connectivity AMP ConnectorsIn Stock: 15015-104693-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TFM-105-22-S-D are identified based on the following critical parameters that determine functional compatibility:

• Pitch - Mating: 0.050" (1.27mm) — must match exactly for mating compatibility
• Number of Positions and Rows: 10 positions, 2 rows — determines contact count and layout
• Connector Type and Contact Type: Header with male pins — defines mating interface
• Mounting Type: Surface Mount — specifies PCB assembly method
• Shrouding and Fastening: Shrouded 4-wall with push-pull — ensures mechanical alignment and retention
• Termination: Solder — defines connection method to PCB
• Insulation Material: Liquid Crystal Polymer (LCP) — provides mechanical and thermal stability
• Contact Material and Finish: Phosphor Bronze with gold mating finish — ensures electrical performance and corrosion resistance
• Flammability Rating: UL94 V-0 — meets safety requirements
• MSL Rating: 1 (Unlimited) — indicates moisture handling capability

The TE Connectivity AMP Connectors parts 104693-1 and 5-104693-1 meet these core substitution criteria. Both are surface mount headers with identical pitch, position count, row configuration, shrouding, fastening type, and termination method. Both use LCP insulation, phosphor bronze contacts with gold mating finish, and carry UL94 V-0 flammability rating with MSL 1 classification.

Parameter Comparison

Engineering Selection Recommendations

TFM-105-22-S-D (Primary Selection)

The Samtec TFM-105-22-S-D is the primary specification part. It is ROHS3 compliant, carries active product status, and supports the full operating temperature range of -55°C to 125°C. The current rating of 2.9A per contact accommodates higher-current applications. This part is recommended for new designs and applications requiring maximum thermal performance and regulatory compliance.

104693-1 (TE Connectivity Alternative)

The TE Connectivity 104693-1 provides functional equivalence with identical pitch, position count, and mechanical configuration. It is active in production with established supply availability. However, this part carries "Not applicable" RoHS status, which may restrict use in applications with RoHS compliance requirements. The operating temperature range is -65°C to 105°C, which is narrower at the high end. Current rating is 0.5A per contact. This part is suitable for applications where RoHS compliance is not mandated and current requirements do not exceed 0.5A per contact.

5-104693-1 (TE Connectivity Preferred Alternative)

The TE Connectivity 5-104693-1 is the preferred substitute option. It is ROHS3 compliant, matching the regulatory status of the primary part. It is active in production with the highest inventory availability (1474 pcs). The operating temperature range is -65°C to 105°C. Current rating is 0.5A per contact. This part is recommended as the primary substitute when supply of the TFM-105-22-S-D is constrained, provided application current requirements do not exceed 0.5A per contact.

Key Differences Requiring Application Review

• Contact Length - Mating: TFM-105-22-S-D has 0.139" (4.63mm) versus 0.120" (3.05mm) for both TE Connectivity parts. This difference affects mating depth and may impact connector stack height in constrained assemblies.
• Contact Shape: TFM-105-22-S-D uses square contacts; TE Connectivity parts use circular contacts. This affects contact geometry and insertion force characteristics.
• Current Rating: TFM-105-22-S-D supports 2.9A per contact; TE Connectivity parts support 0.5A per contact. Applications exceeding 0.5A per contact require the primary part.
• Operating Temperature Upper Limit: TFM-105-22-S-D supports 125°C; TE Connectivity parts support 105°C. High-temperature applications above 105°C require the primary part.
• RoHS Compliance: 5-104693-1 matches the ROHS3 compliance of the primary part; 104693-1 does not carry RoHS status.

Frequently Asked Questions (FAQ)

Q: Can 104693-1 or 5-104693-1 be used as direct drop-in replacements for TFM-105-22-S-D?

A: Both TE Connectivity parts share identical pitch (0.050"), position count (10), row configuration (2 rows), mounting type (surface mount), shrouding (4-wall), fastening (push-pull), and termination (solder). However, differences in contact length, contact shape, current rating, and operating temperature range require application-specific evaluation. Mechanical fit and electrical performance must be confirmed for the specific application before substitution.

Q: What is the impact of the contact length difference between TFM-105-22-S-D (0.139") and the TE Connectivity parts (0.120")?

A: The 0.019" (0.48mm) difference in mating contact length affects the depth of engagement with the mating connector. This may impact overall connector stack height and mating force characteristics. Applications with tight vertical clearance constraints or specific mating depth requirements must account for this difference.

Q: Why do the TE Connectivity parts have a lower current rating (0.5A) compared to TFM-105-22-S-D (2.9A)?

A: Current rating is determined by contact geometry, material composition, and thermal design. The circular contact geometry of the TE Connectivity parts results in a lower current-carrying capacity than the square contacts of the TFM-105-22-S-D. Applications requiring current above 0.5A per contact must use the primary TFM-105-22-S-D part.

Q: Are there RoHS compliance differences between the substitute parts?

A: Yes. The TFM-105-22-S-D and 5-104693-1 are both ROHS3 compliant. The 104693-1 carries "Not applicable" RoHS status. Applications subject to RoHS regulations must use either the primary part or 5-104693-1.

Q: What is the operating temperature difference, and does it affect part selection?

A: TFM-105-22-S-D operates from -55°C to 125°C. Both TE Connectivity parts operate from -65°C to 105°C. The primary part supports higher maximum temperature (125°C vs. 105°C). Applications operating above 105°C require the TFM-105-22-S-D. The lower minimum temperature of the TE Connectivity parts (-65°C vs. -55°C) provides additional cold-temperature margin if needed.

Q: What is the difference between 104693-1 and 5-104693-1?

A: Both parts are from the TE Connectivity AMPMODU 50/50 Grid series with identical electrical and mechanical specifications. The primary difference is RoHS compliance status: 104693-1 is "Not applicable" while 5-104693-1 is ROHS3 compliant. Additionally, 5-104693-1 has higher inventory availability (1474 pcs vs. 692 pcs). For applications requiring RoHS compliance, 5-104693-1 is the preferred TE Connectivity option.

Q: Can these connectors be used interchangeably in existing designs?

A: Interchangeability depends on application-specific requirements for current rating, operating temperature, contact geometry, and regulatory compliance. The identical pitch, position count, and mechanical configuration enable physical interchangeability in many applications. However, electrical performance, thermal behavior, and compliance requirements must be evaluated for each specific application before substitution.