S2M-125-01-L-D SAMTEC Connector (Other) In Stock
SAMTEC S2M-125-01-L-D is a 50-position dual-row female board socket connector with 0.050 inch (1.27 mm) pitch, 1.982 inch body length, and PTH design for reliable signal interconnection in compact PCB stacking and interface applications.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 50
- Lifecycle
- ACTIVE
- Datasheet
- S2M-125-01-L-D Datasheet PDF
- Category
- Connector
- Price
- From $5.6467(MOQ 25)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of S2M-125-01-L-D?
- Dual-row female socket with 50 positions and 0.050 inch (1.27 mm) pitch enables high-density board-to-board interconnection in tight spaces
- PTH socket design with 1.982 inch body length provides strong mechanical retention and secure mating across thermal cycling
- Female contact gender with 0.178 inch body depth supports low-profile stacking between PCBs in embedded and industrial modules
- Broad SAMTEC ecosystem compatibility allows pairing with matching S2B or S2M series headers for flexible system architecture
What is S2M-125-01-L-D used for?
S2M-125-01-L-D is used in embedded computing platforms, FPGA development boards, and industrial control modules where dual-row 0.050 inch pitch female sockets are needed for reliable signal routing between stacked PCBs. The PTH female socket design provides mechanical stability for repeated mating cycles, making it suitable for modular test fixtures and field-replaceable daughtercard assemblies. It also supports backplane and carrier board designs in communications and medical electronics where compact, 50-pin high-density interfaces are required.
What are the specifications of S2M-125-01-L-D?
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| Body Breadth | 0.21inch |
| Body Depth | 0.178inch |
| Body Length | 1.982inch |
| Body/Shell Style | SOCKET |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | NOT SPECIFIED |
| Contact Gender | FEMALE |
| Contact Material | NOT SPECIFIED |
| Contact Pattern | RECTANGULAR |
| Contact Resistance | 15mΩ |
| Contact Style | SQ PIN-SKT |
| DIN Conformance | NO |
| Dielectric Withstanding Voltage | 1050VAC V |
| Durability | 100Cycles |
| Filter Feature | NO |
| IEC Conformance | NO |
| Insulation Resistance | 5000000000Ω |
| Insulator Color | BLACK |
| Insulator Material | LIQUID CRYSTAL POLYMER |
| MIL Conformance | NO |
| Mating Contact Pitch | 0.079inch |
| Mating Contact Row Spacing | 0.079inch |
| Mating Information | MULTIPLE MATING PARTS AVAILABLE |
| Mixed Contacts | NO |
| Mounting Option 1 | LOCKING |
| Mounting Style | STRAIGHT |
| Mounting Type | BOARD |
| Number Of Connectors | ONE |
| Number Of PCB Rows | 2 |
| Number of Rows Loaded | 2 |
| Option | GENERAL PURPOSE |
| PCB Contact Pattern | RECTANGULAR |
| PCB Contact Row Spacing | 0.078mm |
| Plating Thickness | 10u inch |
| Polarization Key | POLARIZED HOUSING |
| Rated Current (Signal) | 2.6A |
| Terminal Length | 0.082inch |
| Terminal Pitch | 2mm |
| Termination Type | SOLDER |
| Total Number of Contacts | 50 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8536.69.40.40 |
| Country of Origin | Malaysia, USA |
Where can I find the S2M-125-01-L-D datasheet?
S2M-125-01-L-D Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for S2M-125-01-L-D?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the pin count and pitch of S2M-125-01-L-D, and how does it compare to 2.54 mm pitch sockets?
S2M-125-01-L-D has 50 positions arranged in a dual-row layout with 0.050 inch (1.27 mm) pitch. Compared to 2.54 mm pitch sockets of the same pin count, the 1.27 mm pitch reduces the connector body length to 1.982 inch, saving approximately 50% of board footprint length and enabling higher interconnect density in space-constrained embedded and industrial PCB designs.
How does the female socket design of S2M-125-01-L-D benefit modular daughtercard or plug-in module systems?
The female (socket) contact gender means S2M-125-01-L-D accepts a mating male header, providing a recessed contact structure that protects pins during handling and repeated insertion. With 50 contacts and a 0.178 inch body depth, the socket maintains secure engagement even after dozens of mating cycles, making it ideal for field-replaceable modules, plugin compute blades, and test-fixture boards where reliable mechanical retention is critical.
What lead time should procurement teams expect for S2M-125-01-L-D, and are there stocking alternatives?
SAMTEC lists a 6-week factory lead time for S2M-125-01-L-D. Teams needing shorter cycle times should check authorized distributors such as Digi-Key and Mouser for available stock; if stock is depleted, SAMTEC's standard 6-week window applies. For programs sensitive to supply continuity, planners should issue purchase orders at least 8 weeks before assembly start to buffer against any capacity or shipping variation.
In what PCB stacking configurations can S2M-125-01-L-D replace larger pitch alternatives to reduce board height?
S2M-125-01-L-D with 0.050 inch (1.27 mm) pitch can replace 2 mm or 2.54 mm pitch dual-row sockets in stacking designs where board-to-board clearance is below 10 mm. The 0.178 inch (4.5 mm) body depth allows very compact vertical stack heights when paired with matching low-profile headers, suitable for compact industrial gateways, wearable medical devices, and SoM (System-on-Module) carrier boards where every millimeter of height clearance matters.
Related Guides
STM32H753VIT6 High-Performance MCU Design Guide
Practical STM32H753VIT6 design guidance for power, clocks, memory, DMA, PCB layout, bring-up, and production recovery.
Aug 3, 2026
STM32H753ZIT6 Selection Guide for High-Performance Embedded Systems
Select the STM32H753ZIT6 by evaluating compute, memory, LQFP144 pinout, power, interfaces, security, and sourcing requirements.
Aug 3, 2026
ICL7660ACPAZ Negative Voltage Charge Pump Design Guide
Design a reliable ICL7660ACPAZ negative rail with capacitor equations, layout rules, startup checks, and practical troubleshooting.
Aug 2, 2026
C0402C103K3RACTU 10 nF MLCC Design Guide
Practical guidance for applying the C0402C103K3RACTU 10 nF, 25 V X7R MLCC in decoupling, filtering, timing, and EMI-control networks.
Aug 2, 2026
Why Buy from FindMyChip
About SAMTEC
SAMTEC is a leading electronic component manufacturer. FindMyChip sources SAMTEC ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 25+ | $10.7872 | $269.68 |
| 50+ | $10.3970 | $519.85 |
| 100+ | $8.5000 | $850.00 |
| 110+ | $8.0300 | $883.30 |
| 500+ | $7.1000 | $3550.00 |
| 1000+ | $5.6467 | $5646.71 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”
You May Also Like
10214-6212PC
3M
Connector
1778573
Phoenix Contact
Connector
5227222-3
TE Connectivity
Connector
S4B-XH-SM4-TB(LF)(SN)
JST (JAPAN SOLDERLESS TERMINALS)
Connector
185226-2
TE Connectivity
Connector
0533980571
Molex
Connector
0360-0-15-01-34-27-10-0
Mill-Max
Connector
7850-0006PR
3M
Connector
AVB 1,5/2/12
BLOCK
Connector
N3764-5002RB
3M
Connector
N3627-6002RB
3M
Connector
N3627-5002RB
3M
Connector
N3440-6002RB
3M
Connector
929715-03-36-I
3M
Connector
929667-02-36-I
3M
Connector
929665-04-36-I
3M
Connector
929665-02-36-I
3M
Connector
929647-04-36-I
3M
Connector
929647-03-36-I
3M
Connector
7834-0006PR
3M
Connector
7826-0006PR
3M
Connector
7820-0006PR
3M
Connector
3440-5002
3M
Connector
3433-5302
3M
Connector