TFM-121-12-S-D-A-P-TR SAMTEC Connector (Other) In Stock
SAMTEC TFM-121-12-S-D-A-P-TR is a Tiger Eye high-reliability dual-row SMT terminal strip with 0.050-inch pitch. It features surface-mount termination with polarization key and tape-and-reel packaging for automated assembly. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 42
- Lifecycle
- ACTIVE
- Datasheet
- TFM-121-12-S-D-A-P-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Tiger Eye high-reliability locking contact system ensures secure mating and prevents accidental disconnection under vibration
- Dual-row SMT configuration with 0.050-inch (1.27 mm) pitch enables high-density board-to-board signal routing
- Integrated polarization key (P) prevents improper insertion during automated and manual assembly
- Tape-and-reel (TR) packaging supports high-speed SMT pick-and-place manufacturing at volume
Applications
The TFM-121-12-S-D-A-P-TR is designed for high-reliability board-to-board signal interconnect in industrial, defense, and medical electronics requiring secure locking connectors. Its Tiger Eye contact geometry provides robust mechanical retention under vibration and thermal cycling, making it suitable for ruggedized equipment and harsh environments. The compact 0.050-inch pitch SMT footprint enables dense PCB layouts in demanding space-constrained applications.
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 pitch and row configuration does the SAMTEC TFM-121-12-S-D-A-P-TR use for SMT board-to-board interconnect?
The TFM-121-12-S-D-A-P-TR features a dual-row SMT configuration with 0.050-inch (1.27 mm) pitch, providing a high-density footprint for board-to-board signal routing. This layout accommodates many contact positions in a compact space, ideal for data-intensive multi-signal interconnects in industrial and defense electronics.
How does the Tiger Eye locking mechanism benefit designs operating across wide temperature ranges?
The Tiger Eye locking mechanism maintains contact integrity under continuous vibration and shock across an operating temperature range of -55°C to +125°C. This makes the TFM-121-12-S-D-A-P-TR suitable for defense avionics, ruggedized industrial controllers, and medical imaging equipment exposed to repeated mechanical stress and thermal cycling.
When should designers choose the TFM-121-12-S-D-A-P-TR over a standard non-locking terminal strip?
Designers should choose this connector when their application requires positive retention under shock or vibration, such as in avionics line-replaceable units or downhole tools operating up to +125°C. The polarization key also prevents miswiring across dual-row signal buses with 50 or more pins, reducing costly PCB rework in high-reliability assemblies.
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