TFM-145-04-FM-D-LC SAMTEC Connector (Other) In Stock
SAMTEC TFM-145-04-FM-D-LC is a 290-position dual-row low-clearance Tiger Eye terminal strip with 0.050 inch pitch and female contact configuration for high-density surface-mount PCB applications. Engineered for compact board-stack assemblies requiring reliable high-cycle interconnects. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 90
- Lifecycle
- ACTIVE
- Datasheet
- TFM-145-04-FM-D-LC Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 290-position dual-row female contact layout at 0.050 inch (1.27 mm) pitch delivering ultra-high-density SMT board interconnects
- Low-clearance (LC) profile minimizes above-board height, enabling tight board-stack and slim-chassis assembly designs
- Tiger Eye contact mechanism with gold mating surfaces rated for thousands of insertion cycles in demanding environments
Applications
The TFM-145-04-FM-D-LC suits ultra-high-density PCB interconnect applications in data center servers, high-performance networking equipment, and advanced embedded computing platforms requiring 290 reliable female contacts at 0.050 inch pitch. The low-clearance profile is critical for slim enclosures and stacked-board architectures where minimizing vertical height is essential. Telecom infrastructure and defense electronics designers benefit from the Tiger Eye reliability in high-cycle mating scenarios.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What contact count and pitch does the TFM-145-04-FM-D-LC offer for high-density PCB designs?
The TFM-145-04-FM-D-LC provides 290 positions in a dual-row female contact configuration at 0.050 inch (1.27 mm) pitch. This high contact density per unit board area enables designers to route large parallel buses or mixed signal interfaces within a compact SMT footprint on standard FR4 PCBs.
How does the LC (low-clearance) designation influence the board stack height in a system design?
The low-clearance designation means the connector body height above the PCB surface is reduced compared to standard-profile versions, enabling board-stack clearances often below 5 mm. This is essential in slim server blades, chassis-constrained enclosures, and densely packed rack-mount equipment where vertical board-to-board spacing is tightly controlled.
When should a procurement engineer specify TFM-145-04-FM-D-LC over a lower-position-count alternative?
Engineers should specify the TFM-145-04-FM-D-LC when a single connector must carry 290 signals or power rails simultaneously at 0.050 inch pitch, avoiding the cost and complexity of using multiple smaller connectors. It is advantageous in backplane interconnects, mezzanine card interfaces, and module-to-module connections in high-availability systems where connector count reduction improves MTBF and lowers assembly cost.
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