SFM-126-02-ZZ-D-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC SFM-126-02-ZZ-D-A-K-TR is a 52-position dual-row high-reliability surface mount socket strip with 0.050" (1.27 mm) pitch and gold-over-nickel contact finish. Designed for high-density board-to-board mating in demanding industrial and communications applications. Available in tape-and-reel packaging for automated assembly; in stock worldwide with fast shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 52
- Lifecycle
- ACTIVE
- Datasheet
- SFM-126-02-ZZ-D-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 52 contacts in dual-row 0.050" (1.27 mm) pitch layout enabling high-density signal routing in compact PCB footprints
- Gold-over-nickel contact finish ensures low contact resistance and reliable mating over thousands of insertion cycles
- Surface mount (SMT) termination with tape-and-reel (TR) packaging supports high-volume automated pick-and-place assembly
- High-reliability design rated for demanding industrial, mil-aero, and communications environments
Applications
The SFM-126-02-ZZ-D-A-K-TR is used in high-density board-to-board interconnect applications such as FPGAs, DSP daughter cards, test and measurement equipment, and server backplane assemblies. Its 0.050" pitch and dual-row configuration allow 52 signals to be routed in a minimal PCB area, making it well suited for space-constrained designs in industrial automation and telecommunications hardware.
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
How many contacts does the SFM-126-02-ZZ-D-A-K-TR have, and what is its pitch?
The SFM-126-02-ZZ-D-A-K-TR has 52 contacts arranged in 2 rows with a 0.050" (1.27 mm) pitch. This fine pitch allows a high signal density on space-constrained PCBs, making it suitable for FPGA daughter cards, DSP modules, and high-speed digital interconnect applications where board real estate is at a premium.
What contact finish does the SFM-126-02-ZZ-D-A-K-TR use, and how does that affect insertion life?
The SFM-126-02-ZZ-D-A-K-TR uses a gold-over-nickel contact finish, which provides a typical contact resistance below 20 mΩ and supports hundreds to thousands of mating cycles without significant oxidation or wear. Gold plating ensures reliable electrical continuity in low-level signal applications and is especially important in industrial and test environments where connectors may be mated and unmated frequently.
Can the SFM-126-02-ZZ-D-A-K-TR be used in automated SMT assembly lines?
Yes. The SFM-126-02-ZZ-D-A-K-TR is packaged in tape-and-reel (TR) format and designed for surface mount reflow soldering, making it directly compatible with standard pick-and-place equipment and reflow ovens. The SMT footprint is compatible with IPC-7351 land patterns, and the 0.050" pitch can be handled by most modern automated assembly lines operating at high volumes.
When would a designer choose SFM-126-02-ZZ-D-A-K-TR over a 0.100" pitch connector of similar pin count?
A designer would choose the SFM-126-02-ZZ-D-A-K-TR when board space is limited and the 0.100" (2.54 mm) pitch equivalent would occupy roughly 4× more PCB area. At 0.050" pitch with 52 pins in dual-row configuration, the connector body is significantly smaller, enabling compact daughter card designs in rack-mounted telecommunications equipment, portable instruments, and embedded computing modules where every square millimeter matters.
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