SFM-137-L2-L-D-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC SFM-137-L2-L-D-A-K-TR is a 74-position dual-row high-reliability socket strip with 0.050" (1.27 mm) pitch in a surface-mount package, designed for dense mezzanine board-to-board interconnections. Features gold-plated contacts, low-profile stacking height, and tape-and-reel packaging for high-volume automated SMT assembly. Available from authorized global distributors for telecommunications and computing applications.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 74
- Lifecycle
- ACTIVE
- Datasheet
- SFM-137-L2-L-D-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 74-position dual-row configuration with 0.050" (1.27 mm) pitch delivers high pin density for compact mezzanine interconnects
- Gold-plated contacts ensure low contact resistance and reliable signal integrity across thousands of mating cycles
- Surface-mount low-profile design minimizes stacking height for space-constrained board assemblies
- Tape-and-reel (TR) packaging enables seamless high-volume automated pick-and-place SMT production
Applications
The SFM-137-L2-L-D-A-K-TR is engineered for high pin-count mezzanine and daughter-card interconnections in data communications equipment, blade servers, and high-performance computing modules where 74 contacts must be routed in a minimal PCB footprint at 0.050" pitch. Its surface-mount format and high-reliability design make it a strong choice for telecommunications line cards and industrial embedded computing platforms requiring long-term signal integrity. The tape-and-reel format supports high-volume automated SMT assembly in demanding production environments.
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-137-L2-L-D-A-K-TR have and how are they arranged?
The SFM-137-L2-L-D-A-K-TR is a 74-position connector in a dual-row format with 37 pins per row, spaced at a 0.050" (1.27 mm) pitch. This high pin count and fine pitch combination is suited for dense mezzanine board interconnections where maximizing signal count in minimal PCB area is critical.
What stacking or mating height does the SFM-137-L2-L-D-A-K-TR provide for mezzanine designs?
The SFM-137-L2-L-D-A-K-TR is designed for SAMTEC's SFM series low-profile surface-mount mezzanine stacking system, providing a controlled stacking height between 2 mm and 8 mm depending on the mated header selection, which enables compact layer-to-layer board assemblies in blade server and line-card applications.
In what high-density systems does a 74-position, 0.050" pitch connector like the SFM-137-L2-L-D-A-K-TR outperform standard 0.100" pitch alternatives?
At 0.050" (1.27 mm) pitch, the SFM-137-L2-L-D-A-K-TR carries 74 contacts in approximately the same PCB length as a 37-position 0.100" pitch connector, making it ideal for blade servers, FPGA daughter cards, and telecom switching modules where routing hundreds of high-speed signals across a compact board edge is required.
Is the SFM-137-L2-L-D-A-K-TR suitable for automated production and what packaging does it use?
Yes, the TR suffix indicates tape-and-reel packaging fully compatible with automated pick-and-place machines. The surface-mount termination supports standard reflow solder profiles, making this 74-position SAMTEC connector appropriate for high-volume SMT production runs in telecommunications, computing, and industrial manufacturing facilities.
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