SMS-109-02-FM-D SAMTEC Connector (Other) In Stock
The SMS-109-02-FM-D is a SAMTEC 18-position dual-row through-hole micro socket with 0.050-inch by 0.100-inch pitch for compact PCB interconnects. It provides reliable socket-to-header mating with a float-mount design for tolerance compensation. Available in stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 18
- Lifecycle
- ACTIVE
- Datasheet
- SMS-109-02-FM-D Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SMS-109-02-FM-D?
- 18-position dual-row through-hole layout at 0.050 x 0.100-inch pitch enabling high-density compact socket interfaces
- Float-mount (FM) design compensating for PCB-to-board misalignment during connector mating
- Through-hole termination providing robust mechanical retention and vibration resistance in high-reliability assemblies
What is SMS-109-02-FM-D used for?
The SMS-109-02-FM-D is suited for board-to-board and board-to-module socket interfaces in instrumentation, industrial control, and test equipment where dual-row micro pin density is required. Its 18-position float-mount design accommodates positional tolerance between mating PCBs in stacked configurations. The through-hole construction offers strong mechanical anchoring in applications subject to shock and vibration.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SMS-109-02-FM-D datasheet?
SMS-109-02-FM-D Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SMS-109-02-FM-D?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What pitch does the SMS-109-02-FM-D use and how does the dual-row layout benefit connector density?
The SMS-109-02-FM-D uses a 0.050 x 0.100-inch (1.27 x 2.54 mm) pitch in a dual-row arrangement across 18 positions, providing 36 total contacts in a compact through-hole footprint. This dual-row layout doubles the contact density compared to single-row sockets of the same length, which is advantageous for multi-signal interfaces on space-constrained PCBs in instrumentation and embedded control systems.
What is the purpose of the float-mount feature on the SMS-109-02-FM-D?
The float-mount (FM) feature allows the SMS-109-02-FM-D connector body to shift laterally by approximately ±0.5 mm to self-align with a mating header during board stacking or module insertion. This tolerance compensation prevents stress across all 18 positions of the dual-row contact array, reducing the risk of bent pins or PCB pad damage when two boards are not perfectly aligned during assembly.
In what types of systems is the SMS-109-02-FM-D through-hole socket preferred over SMT alternatives?
The SMS-109-02-FM-D through-hole socket is preferred over surface-mount alternatives in systems where strong mechanical retention is needed, such as removable daughtercard modules, field-replaceable compute modules, or test-fixture boards subjected to repeated mating cycles. Through-hole solder joints penetrate the full PCB thickness, providing pullout force resistance that SMT pads at 0.050-inch pitch cannot match in high-vibration or high-insertion-force environments.
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