SFM-146-02-LM-D-A SAMTEC Connector (Other) In Stock
SFM-146-02-LM-D-A is a 92-position dual-row high-reliability surface-mount socket strip from SAMTEC with 1.27 mm (0.050") pitch for dense board-to-board mating. It provides gold-plated contacts and an extended post height for increased mated stack clearance. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 92
- Lifecycle
- ACTIVE
- Datasheet
- SFM-146-02-LM-D-A Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SFM-146-02-LM-D-A?
- 92 positions (2x46) at 1.27 mm (0.050 inch) pitch enables routing of up to 92 signal or power channels between boards in a compact dual-row footprint
- Surface-mount termination integrates directly into reflow SMT assembly processes without requiring through-hole board drilling
- High-reliability SAMTEC SFM series construction with gold-plated contacts ensures low contact resistance and durability through hundreds of mating cycles
- LM extended post option provides greater board-to-board clearance than standard variants, accommodating taller components or heat sinks on mating boards
What is SFM-146-02-LM-D-A used for?
The SFM-146-02-LM-D-A is suited for high-density mezzanine and daughter-card interconnects in FPGA development boards, SDR platforms, and embedded computing modules where 92 signals must pass between two closely stacked PCBs at 1.27 mm pitch. Its extended post height accommodates mid-stack components such as decoupling capacitors or crystal oscillators that would be obstructed by a standard-height socket. The surface-mount footprint and gold contact finish support both automated production assembly and field-replaceable module designs in telecom and defense electronics.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-146-02-LM-D-A datasheet?
SFM-146-02-LM-D-A Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-146-02-LM-D-A?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many positions does SFM-146-02-LM-D-A provide and how are they arranged?
The SFM-146-02-LM-D-A provides 92 positions arranged in 2 rows of 46 contacts at 1.27 mm (0.050 inch) pitch. This dual-row configuration supports up to 92 independent signal or power lines across a board-stacking interface with a total connector length of approximately 59 mm.
What does the LM designation mean in SFM-146-02-LM-D-A and how does it affect stack height?
The LM option specifies a longer post length compared to the standard L and L2 variants, providing additional clearance of approximately 10 mm to 14 mm between mated PCBs. This extra space accommodates taller through-hole or surface-mount components, heat sinks, or shielding cans on the daughter card that would otherwise prevent a lower-profile board stack.
Which header series mates with SFM-146-02-LM-D-A for a complete board-to-board assembly?
The SFM-146-02-LM-D-A mates with SAMTEC SFH series headers at the same 1.27 mm pitch and 2-row, 46-position-per-row configuration. A matching SFH-146 header on the second board creates a 92-pin board-to-board interface with gold-to-gold contact mating, rated for reliable signal transmission at frequencies exceeding 1 GHz in controlled-impedance layouts.
For which high-density signal routing applications is SFM-146-02-LM-D-A a better fit than a 2.54 mm pitch connector?
When PCB real estate is limited and 92 signals must cross boards, 1.27 mm pitch reduces total connector length from approximately 118 mm (at 2.54 mm) to 59 mm — roughly half the footprint. This trade-off favors SFM-146-02-LM-D-A in SDR platforms, FPGA mezzanine cards, and radar front-end modules where board area is at a premium and signal counts exceed 80 channels per connector.
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.
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