TSM-122-03-FM-DH-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-122-03-FM-DH-A-K-TR is a 44-position, 2.54 mm pitch surface-mount dual-row terminal strip with friction-lock keying and tape-and-reel packaging. It provides reliable board-to-board or wire-to-board connectivity with 3 A per contact. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 44
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 44 positions on 2.54 mm (0.100 inch) pitch dual-row layout for high-density SMT connectivity
- Friction-lock keying (K option) prevents mis-mating and ensures secure connector engagement
- Tape-and-reel (TR) packaging supports automated high-volume pick-and-place assembly
Applications
The TSM-122-03-FM-DH-A-K-TR is used in backplane interconnects, PCB-to-PCB stacking, and modular embedded systems where a 44-pin, 2.54 mm pitch surface-mount interface is required. Its dual-row design and friction-lock keying are suited for industrial control cards, test and measurement equipment, and computer expansion modules. The tape-and-reel format enables efficient automated assembly in high-volume 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 positions and what pitch does the TSM-122-03-FM-DH-A-K-TR provide?
The TSM-122-03-FM-DH-A-K-TR features 44 positions arranged in a dual-row configuration on a 2.54 mm (0.100 inch) pitch. Each contact is rated for up to 3 A current, making it suitable for mixed signal and moderate power distribution applications.
What does the K option (friction-lock keying) mean for the TSM-122-03-FM-DH-A-K-TR?
The K suffix indicates a friction-lock keying feature that physically prevents incorrect mating with non-keyed or differently-keyed mating connectors. This reduces mis-mating risk during assembly and field service, improving reliability in rack systems and modular embedded boards with multiple 44-pin connectors.
Is TSM-122-03-FM-DH-A-K-TR available in tape-and-reel for automated assembly?
Yes, the TR suffix confirms tape-and-reel packaging for the TSM-122-03-FM-DH-A-K-TR. This format is compatible with standard SMT pick-and-place equipment and supports high-volume reflow soldering at peak temperatures up to 260°C per IPC/JEDEC J-STD-020.
What is a suitable mating connector family for TSM-122-03-FM-DH-A-K-TR?
SAMTEC's TSW and SSW series headers on 2.54 mm pitch are typical mating options for TSM series terminal strips. The dual-row 22-position-per-row layout of the TSM-122 mates with corresponding 44-pin headers, enabling reliable board-stacking at contact separations from 8.5 mm to over 20 mm depending on the selected mating part.
Related Guides
ECMF02-4CMX8 Common-Mode Filter with ESD Protection: Selection Guide
Compare ECMF02-4CMX8 vs ECMF02-2AMX6, ECMF04-4HSM10, and other ST ECMF filters. Choose the right 4-channel common-mode filter with ESD protection for USB 2.0.
Jun 20, 2026
AD5204 Quad Digital Potentiometer Selection Guide (2026)
How to choose the right AD5204 quad digital potentiometer: compare 10kΩ vs 100kΩ variants, TSSOP vs SOIC packages, and SPI interface options for your design.
Jun 20, 2026
0402 10uF X5R Decoupling Design Guide for Compact Digital Rails
Application note for using CL05A106MP5NUNC-class 0402 10uF X5R MLCCs in compact digital rail decoupling designs.
Jun 19, 2026
How to Choose an 0805 10uF MLCC for Decoupling and Bulk Capacitance
Selection guide for choosing 0805 10uF MLCCs around CL21A106KOQNNNE, covering derating, dielectric, package, and sourcing checks.
Jun 19, 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
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”