TSM-121-02-FM-DH-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-121-02-FM-DH-A-K-TR is a 42-position dual-row surface-mount terminal strip on 0.100" pitch, featuring female machined contacts with gold plating for reliable mating and supplied in tape-and-reel format for automated assembly. Suitable for high-density board-to-board signal distribution. In stock worldwide with fast shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 42
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 42-position dual-row layout on 0.100" (2.54 mm) pitch fits standard PCB grid patterns, enabling easy integration with existing footprint libraries for board-to-board connectors
- Female machined (FM) contacts with gold plating provide tighter tolerances and more consistent contact force than stamped alternatives, extending reliable mating performance over many insertion cycles
- Tape-and-reel (TR) packaging supports continuous automated pick-and-place assembly, reducing handler changeover time and improving placement consistency in high-volume SMT production
Applications
The TSM-121-02-FM-DH-A-K-TR is designed for board-to-board and mezzanine interconnect applications in industrial control, embedded computing, and instrumentation where 42 signal or mixed-signal channels must be reliably routed across a 0.100" pitch interface. Its female machined contacts support frequent mating in test fixture and field-replaceable module designs. Tape-and-reel supply simplifies procurement and line-feeding for medium to high production volumes.
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
What contact style does TSM-121-02-FM-DH-A-K-TR use, and how does it affect mating performance?
TSM-121-02-FM-DH-A-K-TR uses female machined (FM) contacts, which are manufactured to tighter dimensional tolerances than stamped contacts. This results in more consistent contact normal force and lower insertion force variation across all 42 positions, maintaining reliable electrical contact resistance below a few milliohms over many mating cycles in instrumentation and test applications.
How does the 0.100" pitch of TSM-121-02-FM-DH-A-K-TR benefit PCB designers working on standard grid layouts?
The 0.100" (2.54 mm) pitch aligns directly with the standard PCB design grid used by most EDA tools and IPC footprint libraries. Designers can integrate the 42-position dual-row TSM-121-02-FM-DH-A-K-TR without creating custom land patterns, reducing design time and avoiding DFM issues that arise with non-standard pitch connectors on mixed-signal boards.
For which production volumes and assembly methods is the TR tape-and-reel packaging of TSM-121-02-FM-DH-A-K-TR best suited?
The tape-and-reel (TR) format is most beneficial for medium to high production volumes using automated SMT pick-and-place equipment. It feeds the 42-position dual-row connector continuously into placement machines without manual loading, maintaining precise component orientation and reducing placement cycle times on boards that include this 0.100" pitch terminal strip.
In what industries is the TSM-121-02-FM-DH-A-K-TR dual-row terminal strip typically used?
This 42-position 0.100" pitch surface-mount terminal strip is commonly deployed in industrial I/O expansion modules, embedded single-board computers, medical instrument front-ends, and laboratory test equipment. Its dual-row configuration efficiently distributes 42 signal and power channels between a main board and a daughter card or mezzanine module across multiple market segments.
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