TSM-121-02-SS-DH-P-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-121-02-SS-DH-P-TR is a 42-position dual-row surface-mount terminal strip at 0.100 inch (2.54 mm) pitch, featuring stainless steel contact finish, double-height housing profile, and tape-and-reel packaging for automated PCB assembly in high-density signal interconnect applications.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 42
- Lifecycle
- ACTIVE
- Datasheet
- TSM-121-02-SS-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-SS-DH-P-TR?
- 42-position dual-row layout at 0.100 inch (2.54 mm) standard pitch
- Stainless steel (SS) contact finish for durability in demanding environments
- Double-height (DH) housing for extended insulation creepage distance
- Surface mount (SMT) termination for automated reflow soldering
- Tape-and-reel (TR) packaging for high-volume pick-and-place assembly
- Polarized connector body for correct mating orientation
What is TSM-121-02-SS-DH-P-TR used for?
The TSM-121-02-SS-DH-P-TR is used in industrial control boards, embedded computing platforms, and test fixture assemblies where a 42-position SMT terminal strip at 2.54 mm pitch provides reliable signal connectivity between PCBs and wire harnesses. Its dual-row layout and stainless steel contacts make it suitable for harsh environment applications in factory automation equipment, power distribution boards, and measurement instruments requiring stable contact resistance across temperature cycles.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-121-02-SS-DH-P-TR datasheet?
TSM-121-02-SS-DH-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-121-02-SS-DH-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What pitch and position count does TSM-121-02-SS-DH-P-TR use, and how does this compare to standard 0.050 inch pitch connectors?
The TSM-121-02-SS-DH-P-TR uses a 0.100 inch (2.54 mm) pitch with 42 total positions in a dual-row arrangement of 21 pins per row. The 2.54 mm pitch is twice the density of 0.050 inch (1.27 mm) pitch connectors, providing greater mechanical strength per contact and easier hand-soldering rework access, making it preferred for signal counts up to 42 in industrial applications where vibration or frequent connector mating requires robust solder joint integrity.
How does the stainless steel contact finish on TSM-121-02-SS-DH-P-TR benefit applications in corrosive or high-humidity environments?
Stainless steel contacts provide superior corrosion resistance compared to standard brass or phosphor bronze contacts with tin plating, maintaining contact resistance below 30 milliohms even after extended exposure to 85% relative humidity environments. For industrial applications in food processing equipment, outdoor enclosures, or chemical plant control panels where moisture and condensation can cause rapid oxidation of standard tin contacts, the stainless steel finish extends connector service life by 3 to 5 times compared to conventional tin-plated alternatives.
What does the double-height (DH) housing designation mean for TSM-121-02-SS-DH-P-TR, and when is this feature specified?
The double-height housing increases the insulating body height above the PCB surface compared to standard single-height TSM variants, which extends the creepage and clearance distance between adjacent contacts. Engineers specify double-height housings in designs where working voltages exceed 50 V or where IEC 60950 / IEC 62368 safety standards require minimum 0.8 mm creepage at the connector body. The DH profile also provides a taller grip surface for manual mating in field service scenarios where technicians connect wire-to-board assemblies in the 42-position terminal strip.
For production programs using TSM-121-02-SS-DH-P-TR, what reel quantity and lead time should procurement expect?
TSM-121-02-SS-DH-P-TR is supplied in tape-and-reel format, with standard reel quantities typically of 500 to 1000 pieces for 2.54 mm pitch SMT terminal strips. SAMTEC lead times for custom-option connectors like this stainless steel double-height variant typically range from 4 to 10 weeks. Procurement teams should request firm lead time confirmation from SAMTEC or authorized distributors, as specialty stainless steel contact options may have longer factory build times than standard tin-plated equivalents.
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