TSM-121-02-TM-DH-P-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-121-02-TM-DH-P-TR is a 42-position, 0.100 inch pitch dual-row surface-mount terminal strip with polarization key and tape-and-reel packaging, designed for reliable board-to-board signal connections in electronic assemblies.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 42
- Lifecycle
- ACTIVE
- Datasheet
- TSM-121-02-TM-DH-P-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TSM-121-02-TM-DH-P-TR?
- 42 positions on 0.100 inch (2.54 mm) pitch dual-row SMT design for dense signal routing
- Polarization key (P) prevents incorrect mating orientation during assembly and field service
- Tape-and-reel (TR) packaging for automated SMT pick-and-place production
- Dual-row (DH) layout maximizes pin count within a compact PCB footprint
- Compatible with SAMTEC TSW and mating receptacle series for versatile board-to-board interconnect
What is TSM-121-02-TM-DH-P-TR used for?
TSM-121-02-TM-DH-P-TR serves embedded systems, industrial I/O modules, and test fixtures that require a 42-pin, 0.100 inch pitch SMT connector with keyed polarity for error-proof mating. The dual-row configuration is frequently used on compute modules, expansion cards, and sensor interface boards. Tape-and-reel availability supports high-volume automated SMT assembly lines.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-121-02-TM-DH-P-TR datasheet?
TSM-121-02-TM-DH-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-121-02-TM-DH-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many signal positions does TSM-121-02-TM-DH-P-TR offer and what pitch is used?
TSM-121-02-TM-DH-P-TR provides 42 positions in a dual-row layout on a standard 0.100 inch (2.54 mm) pitch. This configuration supports up to 42 discrete signal or mixed-signal connections while keeping the connector footprint compatible with common PCB routing and assembly standards.
Why is the polarization key important in TSM-121-02-TM-DH-P-TR for production assembly?
The P (polarization key) in TSM-121-02-TM-DH-P-TR prevents the 42-pin connector from being inserted in the wrong orientation during manufacturing or field service, reducing the risk of miswiring on boards where multiple identical connectors are placed close together. This mechanical keying improves assembly reliability at 2.54 mm pitch without requiring additional PCB markings.
Is TSM-121-02-TM-DH-P-TR suitable for high-volume automated SMT production?
Yes. The TR suffix indicates tape-and-reel packaging, which enables direct feeding into automated pick-and-place machines for high-volume SMT production. The 42-position, 0.100 inch pitch connector is reflow-solderable and its small SMT footprint suits modern compact PCB designs in industrial and consumer applications.
When would TSM-121-02-TM-DH-P-TR be chosen over a surface-mount connector without a polarity key?
A designer would choose TSM-121-02-TM-DH-P-TR when the board layout includes multiple 42-position, 2.54 mm pitch connectors that look identical, and incorrect mating could damage components or create costly rework. The keyed (P) design physically prevents reverse insertion, which is particularly valuable on compute or sensor modules produced in high volumes.
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