Samtec TFM-145-22-S-D Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Samtec TFM-145-22-S-D is an active surface mount rectangular connector header from the Tiger Eye™ TFM series. This 90-position, dual-row connector operates at 0.050" (1.27mm) pitch and is designed for board-to-board or cable applications with push-pull fastening. The part is ROHS3 compliant and actively manufactured. Substitute parts are identified to provide design flexibility when the primary part is unavailable or when specific feature requirements necessitate alternative configurations within the same product family.

Substiute Parts

TFM-145-22-S-D

Samtec Inc.In Stock: 824TFM-145-22-S-D Datasheet

Current PartRFQ

TFM-145-12-S-D-LC

Samtec Inc.In Stock: 1174TFM-145-12-S-D-LC Datasheet

SimilarRFQ

TFM-145-22-S-D-LC

Samtec Inc.In Stock: 649TFM-145-22-S-D-LC Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TFM-145-22-S-D is determined by strict equivalence across the following critical parameters:

• Manufacturer and Series: Samtec Inc., Tiger Eye™ TFM
• Connector Type and Contact Type: Header with Male Pin contacts
• Number of Positions and Rows: 90 positions, 2 rows
• Pitch and Row Spacing: 0.050" (1.27mm) mating pitch and row spacing
• Mounting Type: Surface Mount
• Shrouding Configuration: Shrouded - 4 Wall
• Fastening Type: Push-Pull
• Electrical Ratings: 2.9A per Contact, 275VAC
• Operating Temperature Range: -55°C ~ 125°C
• Compliance: ROHS3 Compliant, UL94 V-0 flammability rating

Identified substitutes maintain all critical parameters. Variations in insulation height and the presence of Board Lock features do not affect electrical or mechanical compatibility for standard applications.

Parameter Comparison

Engineering Selection Recommendations

All three parts—TFM-145-22-S-D, TFM-145-22-S-D-LC, and TFM-145-12-S-D-LC—are active products from Samtec Inc. and maintain ROHS3 compliance with UL94 V-0 flammability certification. Selection between these parts is based on specific design requirements:

TFM-145-22-S-D is the baseline configuration without Board Lock features and an insulation height of 0.360" (9.14mm).

TFM-145-22-S-D-LC includes Board Lock functionality with identical insulation height of 0.360" (9.14mm), providing mechanical retention enhancement.

TFM-145-12-S-D-LC includes Board Lock functionality with a reduced insulation height of 0.290" (7.37mm), suitable for applications with space constraints.

All parts share identical electrical ratings, operating temperature range, contact materials, and compliance certifications. The choice between substitutes depends on whether Board Lock retention is required and available PCB clearance for insulation height.

Frequently Asked Questions (FAQ)

Q: Can TFM-145-22-S-D-LC be used as a direct replacement for TFM-145-22-S-D?

A: Yes. Both parts maintain identical pitch (0.050"), position count (90), row configuration (2 rows), electrical ratings (2.9A per Contact, 275VAC), operating temperature range (-55°C ~ 125°C), and insulation height (0.360"). The addition of Board Lock features in the -LC variant does not compromise compatibility with standard mating connectors.

Q: What is the difference between TFM-145-22-S-D-LC and TFM-145-12-S-D-LC?

A: The primary difference is insulation height. TFM-145-22-S-D-LC has an insulation height of 0.360" (9.14mm), while TFM-145-12-S-D-LC has a reduced height of 0.290" (7.37mm). Both include Board Lock features. Selection depends on available PCB clearance. All other electrical and mechanical parameters remain identical.

Q: Are all three parts ROHS3 compliant?

A: Yes. TFM-145-22-S-D, TFM-145-22-S-D-LC, and TFM-145-12-S-D-LC are all ROHS3 compliant with UL94 V-0 flammability rating and Moisture Sensitivity Level 1 (Unlimited).

Q: What does the Board Lock feature provide?

A: Board Lock is a mechanical retention feature present in the -LC variants. It provides additional mechanical stability during mating and unmating operations. This feature does not affect electrical performance or standard compatibility.

Q: Can these connectors be used interchangeably in the same application?

A: Interchangeability depends on specific design constraints. All three parts are electrically and mechanically compatible at the mating interface. However, PCB layout must accommodate the insulation height of the selected part. TFM-145-12-S-D-LC requires less vertical clearance than the other two variants.