TFC-121-02-L-D-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TFC-121-02-L-D-A-K-TR is a 42-position Tiger Eye cost-effective terminal strip on a fine 0.050" pitch with dual-row layout, key alignment feature, and tape-and-reel packaging for automated SMT assembly. It delivers reliable mating through the Tiger Eye contact wiping design in a compact low-profile surface mount footprint. Available from stock worldwide with competitive pricing.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 42
- Lifecycle
- ACTIVE
- Datasheet
- TFC-121-02-L-D-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 42-position dual-row 0.050" pitch layout with key (K) alignment feature preventing mis-mating in automated and field assembly operations
- Tiger Eye wiping contact technology ensuring oxide-free, low-resistance connections across repeated mating cycles in compact 1.27 mm pitch footprints
- Tape-and-reel (TR) packaging enabling high-volume automated pick-and-place SMT assembly at production line rates exceeding 1000 parts per hour
Applications
The TFC-121-02-L-D-A-K-TR is designed for high-volume consumer electronics, communication sub-modules, and compact industrial controllers where 42 signals must be routed across a board-to-board or module interface in a minimal 0.050" pitch footprint. The key alignment feature prevents mis-mating during automated manufacturing, reducing assembly defect rates in multi-shift production environments. Tape-and-reel packaging ensures seamless integration into SMT pick-and-place lines without the need for manual component handling.
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 does the key (K) feature on TFC-121-02-L-D-A-K-TR prevent during automated PCB assembly?
The key (K) mechanical feature on the TFC-121-02-L-D-A-K-TR creates a physical asymmetry in the 42-position dual-row 0.050" pitch housing that prevents the mating connector from being inserted in the wrong orientation. This is critical in automated SMT lines and field-service operations where a reversed 42-pin insertion could short power and ground rails or damage signal lines before a visual check is performed.
How does the 0.050" pitch of TFC-121-02-L-D-A-K-TR compare to 0.100" connectors in terms of PCB area savings?
At 0.050" (1.27 mm) pitch, the TFC-121-02-L-D-A-K-TR routes 42 positions in approximately half the board length required by a standard 0.100" pitch connector of the same count, saving roughly 26 mm of PCB edge length in a dual-row configuration. This space reduction is significant on compact consumer electronic PCBs or sub-modules where every square millimeter of board area impacts product size and cost.
For a high-volume IoT module production line, what throughput benefit does tape-and-reel packaging of TFC-121-02-L-D-A-K-TR provide?
Tape-and-reel (TR) packaging on the TFC-121-02-L-D-A-K-TR allows automated pick-and-place machines to place the 42-position connector at rates consistent with other 0402 and 0603 SMT components, typically 1000 or more placements per hour, without the manual unloading steps required for tray or tube packaging. This eliminates a manual handling step, reduces the risk of coplanarity defects on fine 0.050" pitch pads, and lowers per-unit labor cost in high-volume IoT or wearable module production.
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