Samtec TFC-145-12-L-D-A Equivalent & Substitute Parts

Part Overview

The Samtec TFC-145-12-L-D-A is a shrouded surface mount rectangular connector header from the Tiger Eye™ TFC series. This connector is designed for board-to-board applications with 90 positions arranged in 2 rows at 0.050" (1.27mm) pitch. The part is currently active in production with 934 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are required for applications where the primary part is unavailable or when design flexibility permits alternative configurations within the same product family.

Substiute Parts

TFC-145-12-L-D-A

Samtec Inc.In Stock: 1028TFC-145-12-L-D-A Datasheet

Current PartRFQ

TFC-145-32-L-D-A

Samtec Inc.In Stock: 1222TFC-145-32-L-D-A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TFC-145-12-L-D-A is determined by strict equivalence in the following critical parameters:

• Manufacturer: Samtec Inc.
• Series: Tiger Eye™ TFC
• Connector Type: Header
• Contact Type: Male Pin
• Pitch - Mating: 0.050" (1.27mm)
• Number of Positions: 90
• Number of Rows: 2
• Row Spacing - Mating: 0.050" (1.27mm)
• Mounting Type: Surface Mount
• Shrouding: Shrouded - 4 Wall
• Termination: Solder
• Current Rating: 3.1A per Contact
• Voltage Rating: 275VAC
• Operating Temperature: -55°C ~ 125°C
• RoHS Status: ROHS3 Compliant

The identified substitute part TFC-145-32-L-D-A maintains all critical electrical and mechanical parameters. The primary difference is the insulation height, which varies from 0.296" (7.52mm) in the main part to 0.441" (11.20mm) in the substitute. This dimensional variation does not affect electrical performance or contact functionality and permits substitution in applications where board-to-board spacing accommodates the increased insulation height.

Parameter Comparison

Engineering Selection Recommendations

Both the TFC-145-12-L-D-A and TFC-145-32-L-D-A are active products from Samtec Inc. with full ROHS3 compliance and UL94 V-0 material flammability certification. Selection between these parts is determined by board-to-board spacing requirements. The TFC-145-12-L-D-A features an insulation height of 0.296" (7.52mm), suitable for compact applications with limited vertical clearance. The TFC-145-32-L-D-A provides an insulation height of 0.441" (11.20mm), accommodating applications requiring greater separation between mating surfaces. Both parts maintain identical electrical performance, contact ratings, and operating temperature ranges. Inventory availability is adequate for both options, with the TFC-145-32-L-D-A currently stocked at higher quantities (1120 units versus 934 units).

Frequently Asked Questions (FAQ)

Q: Can TFC-145-32-L-D-A be used as a direct replacement for TFC-145-12-L-D-A?

A: Substitution is permissible when the application accommodates the increased insulation height of 0.441" (11.20mm) compared to 0.296" (7.52mm). All electrical parameters, contact configurations, and performance specifications are identical. Board-to-board spacing must be verified to ensure the taller insulation height does not create mechanical interference.

Q: Are there differences in electrical performance between these parts?

A: No. Both parts maintain identical current ratings (3.1A per Contact), voltage ratings (275VAC), operating temperature ranges (-55°C ~ 125°C), and contact materials (Phosphor Bronze with gold mating finish). Electrical performance is equivalent.

Q: What is the significance of the insulation height difference?

A: Insulation height determines the vertical distance from the PCB surface to the top of the connector body. The TFC-145-12-L-D-A is specified for applications with tighter vertical constraints, while the TFC-145-32-L-D-A accommodates designs requiring greater board separation. This is a mechanical consideration only and does not affect signal integrity or electrical function.

Q: Are both parts RoHS compliant?

A: Yes. Both TFC-145-12-L-D-A and TFC-145-32-L-D-A are ROHS3 compliant with UL94 V-0 material flammability ratings. Both meet current environmental and safety standards.

Q: What is the moisture sensitivity level for these connectors?

A: Both parts are rated at Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Are these parts available in different packaging options?

A: Both parts are supplied in tube packaging. Inventory is currently available for both part numbers from Samtec Inc.