S2M-149-01-L-D SAMTEC Connector (Other) In Stock
SAMTEC S2M-149-01-L-D is a 98-position high-reliability Tiger Eye discrete wire socket with 2.00 mm pitch, designed for robust wire-to-board and wire-to-wire connectivity in demanding industrial and defense applications. The Tiger Eye contact geometry ensures high normal force and low contact resistance across hundreds of mating cycles. Available from stock worldwide with fast global shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 98
- Lifecycle
- ACTIVE
- Datasheet
- S2M-149-01-L-D Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 98 positions at 2.00 mm pitch enabling dense discrete wire termination in a single connector body
- SAMTEC Tiger Eye contact geometry providing high normal force and reliable low-resistance mating over multiple cycles
- Discrete wire socket design accepting individual wire terminations for flexible harness routing
- High-reliability construction suited for defense, aerospace, and industrial applications with demanding duty cycles
- Dual-row (D suffix) layout distributing 49 contacts per row for organized high-count wiring
Applications
The S2M-149-01-L-D is designed for high-reliability wire harness and discrete wire interconnect applications in military, aerospace, and industrial control systems requiring 98-position connectivity at a 2.00 mm pitch. The Tiger Eye contact system maintains consistent electrical performance through repeated mating and unmating cycles, making the connector suitable for field-replaceable electronic assemblies and modular avionics chassis. It also serves in test and measurement equipment where a large number of individual signal lines must terminate into a compact, reliable socket without the constraints of ribbon cable or SMT connector footprints.
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
What does the Tiger Eye contact system in the S2M-149-01-L-D provide over standard stamped contacts?
SAMTEC's Tiger Eye contact uses a machined or precision-formed geometry that maintains higher normal force against the mating pin over many mating cycles compared to standard stamped-and-formed contacts. This higher normal force results in lower and more stable contact resistance across the 98 positions, making the S2M-149-01-L-D preferable in applications with hundreds of mating cycles, vibration, and temperature cycling typical of defense, aerospace, and industrial automated test equipment.
How many positions and what pitch does the S2M-149-01-L-D offer, and how are the contacts arranged?
The S2M-149-01-L-D provides 98 positions in a dual-row arrangement at 2.00 mm pitch, with 49 contacts per row. The 2.00 mm pitch is a common standard for discrete wire and ribbon cable connectors in industrial and defense wiring, offering a balance between density and ease of manual wire termination compared to finer 1.27 mm pitch alternatives.
Which mating header or pin strip is compatible with the S2M-149-01-L-D for a wire-to-board connection?
The S2M-149-01-L-D mates with SAMTEC S2B or compatible dual-row through-hole pin headers at 2.00 mm pitch. A 98-position dual-row pin header (49 per row) soldered to the PCB provides the mating interface, allowing the discrete wire socket to plug directly onto the board. SAMTEC's selection tools identify compatible polarized shrouded headers that add positive retention and prevent mis-orientation during field installation.
For a 98-position wire harness in an avionics unit, why choose the S2M-149-01-L-D over a mass-termination IDC connector?
Mass-termination IDC connectors require flat ribbon cable and cannot accommodate individually routed wires of different gauges or shielded twisted pairs. The S2M-149-01-L-D accepts discrete wires, allowing the harness designer to mix wire gauges, use shielded pairs on sensitive signal lines, and route wires in custom paths within the avionics chassis. The Tiger Eye contacts and high-reliability construction also exceed the cycle life and vibration resistance of typical IDC connectors, which is critical in avionics where connectors may be mated and unmated during line-replaceable unit swaps.
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