SFM-135-L2-ZZ-D-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC SFM-135-L2-ZZ-D-A-K-TR is a 70-position dual-row high-reliability surface-mount socket strip at 0.050-inch (1.27 mm) pitch, ideal for high-density board-to-board and mezzanine interconnects. Available in stock for worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 70
- Lifecycle
- ACTIVE
- Datasheet
- SFM-135-L2-ZZ-D-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SFM-135-L2-ZZ-D-A-K-TR?
- 70-position dual-row layout at 0.050 inch (1.27 mm) pitch provides high-density signal routing in a compact SMT footprint
- High-reliability socket strip construction designed for repeated mating cycles with consistent contact force and low insertion loss
- Tape-and-reel (TR) packaging compatible with automated pick-and-place SMT assembly for volume manufacturing
What is SFM-135-L2-ZZ-D-A-K-TR used for?
The SFM-135-L2-ZZ-D-A-K-TR is used in high-density mezzanine and board-to-board interconnect applications where 70 signals must be routed between stacked PCBs in server blades, FPGA development platforms, and data communication modules. Its 0.050-inch pitch surface-mount footprint suits compact embedded processor boards, test and measurement daughtercards, and military avionics systems requiring high-reliability socket interfaces. The dual-row configuration also supports mixed signal and power routing within a single connector.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-135-L2-ZZ-D-A-K-TR datasheet?
SFM-135-L2-ZZ-D-A-K-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-135-L2-ZZ-D-A-K-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many positions and what pitch does the SFM-135-L2-ZZ-D-A-K-TR socket strip provide?
The SFM-135-L2-ZZ-D-A-K-TR is a 70-position dual-row socket strip at 0.050 inch (1.27 mm) pitch, providing 35 contacts per row. This configuration supports dense signal routing across 70 independent pins in a surface-mount footprint suitable for board-to-board, mezzanine, and plug-in module applications where high contact count per unit length is required.
What design advantages does the SFM-135-L2-ZZ-D-A-K-TR surface-mount format offer over through-hole socket strips in dense PCB layouts?
The surface-mount format of the SFM-135-L2-ZZ-D-A-K-TR eliminates through-hole drilling for 70 pins, saving PCB layer space and reducing board manufacturing cost. SMT placement also allows components to be placed on both sides of the PCB, and the 1.27 mm pitch achieves approximately 50% higher contact density per millimeter compared to standard 2.54 mm pitch through-hole socket strips, enabling more compact board designs.
Which high-reliability system applications are best matched to the SFM-135-L2-ZZ-D-A-K-TR 70-position socket strip?
The SFM-135-L2-ZZ-D-A-K-TR suits FPGA expansion mezzanine boards requiring 70 or more signal pins, server blade PCIe or memory riser card sockets, defense electronics test boards with 1.27 mm pitch headers, and telecom line card interfaces. Its high-reliability rating implies a mating cycle life suitable for field-replaceable module sockets that may be inserted and removed dozens of times over the equipment's service life.
Is the SFM-135-L2-ZZ-D-A-K-TR compatible with SAMTEC TSM or SSM header series for mated connector pairing?
The SAMTEC SFM series socket strips are designed to mate with corresponding SAMTEC header series at the same 0.050 inch (1.27 mm) pitch and dual-row configuration, including the TSM and SSM header families. Mating the SFM-135 socket with a compatible 70-position 1.27 mm pitch dual-row header creates a reliable board-to-board or mezzanine stack with defined contact normal force and low insertion resistance across all 70 pins.
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About SAMTEC
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