TFM-138-22-STL-D-A-P-TR SAMTEC Connector (Other) In Stock
SAMTEC TFM-138-22-STL-D-A-P-TR is a 76-position, dual-row, surface-mount Tiger Eye high-reliability terminal strip at 0.050-inch pitch with tape-and-reel packaging for automated assembly. Provides high-density fine-pitch interconnect for board-to-board applications, available with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 76
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TFM-138-22-STL-D-A-P-TR?
- 76-position dual-row terminal strip at 0.050" (1.27 mm) pitch delivers dense signal and power routing in a compact SMT footprint
- Tiger Eye wiping contact design ensures consistent low contact resistance and reliable mating performance across all 76 positions through thousands of cycles
- Tape-and-reel (TR) packaging with SMT termination enables fully automated pick-and-place assembly at high production volumes
What is TFM-138-22-STL-D-A-P-TR used for?
The TFM-138-22-STL-D-A-P-TR is designed for fine-pitch, high-density board-to-board interconnect in telecommunications equipment, industrial automation controllers, and advanced computing platforms. Its 76-position, 0.050-inch pitch layout consolidates multiple signal groups, differential pairs, and power rails into a single connector, reducing the number of separate connectors needed on a PCB. Tape-and-reel packaging and surface-mount termination make it fully compatible with high-speed SMT assembly lines for efficient volume manufacturing.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFM-138-22-STL-D-A-P-TR datasheet?
TFM-138-22-STL-D-A-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFM-138-22-STL-D-A-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What contact count and pitch does the TFM-138-22-STL-D-A-P-TR offer, and how does this compare to 0.100-inch pitch alternatives?
The TFM-138-22-STL-D-A-P-TR provides 76 positions at a 0.050-inch (1.27 mm) pitch, which is half the spacing of standard 0.100-inch (2.54 mm) alternatives. This finer pitch allows the same 76-contact density in roughly half the board length compared to a 2.54 mm pitch connector, freeing PCB real estate in high-density telecom or computing designs where space is at a premium.
How does the Tiger Eye contact mechanism in the TFM-138-22-STL-D-A-P-TR ensure signal integrity over the product lifecycle?
The Tiger Eye dual-leaf contact design creates a wiping engagement across the mating pin surface when the connector is mated, displacing surface oxides and debris to maintain stable contact resistance across all 76 positions. This is critical in high-speed digital systems where a contact resistance variation of even a few milliohms can cause signal reflections or voltage drop on sensitive differential pairs operating at multi-gigabit data rates.
Why is the surface-mount configuration of the TFM-138-22-STL-D-A-P-TR preferred over through-hole terminal strips in modern PCB designs?
Surface-mount termination on the TFM-138-22-STL-D-A-P-TR eliminates the need for drilled vias and wave-solder processing, allowing the 76-position connector to be placed and reflowed alongside all other SMT components in a single production pass. This reduces PCB fabrication cost, shortens assembly cycle time, and enables finer pitch routing on high-layer-count boards where through-hole barrels at 1.27 mm pitch would compromise inner-layer routing channels.
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