TSM-126-04-F-DH-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-126-04-F-DH-A-K-TR is a 52-position, 2.54 mm pitch dual-row surface mount terminal strip connector with friction lock and key polarization. It provides secure, polarized mating for high-density PCB interconnects in automated assembly lines. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 52
- Lifecycle
- ACTIVE
- Datasheet
- TSM-126-04-F-DH-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TSM-126-04-F-DH-A-K-TR?
- 52-position dual-row layout on 2.54 mm (0.100") pitch for maximum signal density in compact PCB footprints
- Friction lock (F) and key polarization (K) prevent accidental disconnection and incorrect mating orientation
- Tape-and-reel (TR) packaging enables automated pick-and-place SMT assembly at high production volumes
- Gold-plated (A) contacts deliver low contact resistance and corrosion resistance for long service life
What is TSM-126-04-F-DH-A-K-TR used for?
TSM-126-04-F-DH-A-K-TR is ideal for backplane interconnects, FPGA development boards, and high-density signal routing in embedded computing systems where 52 signals must be reliably routed across a 2.54 mm pitch header. The friction lock and key polarization features make it especially suitable for industrial automation panels and test equipment racks requiring error-proof plug-in modules. Its gold-plated contacts support demanding environments with frequent mate-unmate cycles exceeding 30 operations.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-126-04-F-DH-A-K-TR datasheet?
TSM-126-04-F-DH-A-K-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-126-04-F-DH-A-K-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the key polarization (K) feature on TSM-126-04-F-DH-A-K-TR prevent miswiring in a 52-pin connector?
The key polarization (K) on TSM-126-04-F-DH-A-K-TR physically blocks incorrect insertion by adding an asymmetric keying feature that aligns only with a properly keyed mating receptacle. With 52 positions across 2 rows on a 2.54 mm pitch, this is critical in dense PCB assemblies where reversing a connector could damage circuits operating at voltages up to 3.3 V or 5 V. The key reduces field wiring errors significantly in production environments.
What contact plating does TSM-126-04-F-DH-A-K-TR use, and how does it affect connector longevity?
TSM-126-04-F-DH-A-K-TR features gold-plated (A suffix) contacts, which provide a contact resistance typically below 20 milliohms and resist oxidation even in humid or mildly corrosive environments. Gold plating is rated for hundreds of mate-unmate cycles, making this 52-position connector suitable for test fixture sockets and removable daughtercard interfaces where repeated connection is expected. This plating also ensures reliable signal integrity at low-voltage logic levels such as 1.8 V and 3.3 V.
For a high-density FPGA daughtercard design, how many signal lines can TSM-126-04-F-DH-A-K-TR carry per row?
TSM-126-04-F-DH-A-K-TR provides 52 positions total in a dual-row (DH) format, delivering 26 pins per row on a 2.54 mm (0.100 inch) pitch. For an FPGA daughtercard, this translates to up to 48 I/O signals plus 4 power or ground pins per connector, enabling a compact interface footprint. Its friction lock retains the mating connector securely during vibration common in industrial computing enclosures.
What is the production packaging format for TSM-126-04-F-DH-A-K-TR, and how many units fit per reel?
TSM-126-04-F-DH-A-K-TR ships in tape-and-reel (TR) format, which is compatible with standard SMT pick-and-place machines operating at placements speeds exceeding 10,000 components per hour. Reel quantities for SAMTEC TSM series connectors in TR format typically range from 100 to 500 units per reel depending on connector size, providing efficient bulk supply for volume PCB production runs.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 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.”
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