TSM-135-01-STL-DH-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-135-01-STL-DH-A-K-TR is a 70-position dual-row surface-mount terminal strip with 0.100" (2.54 mm) pitch featuring a super-low-profile (STL) body height for space-constrained PCB assemblies. Tape-and-reel packaging and tin contact finish support automated lead-free SMT assembly in industrial and server applications.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 70
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 70 positions in dual-row (DH) layout at 0.100" (2.54 mm) pitch for high-density surface-mount signal routing
- Super-low-profile (STL) body minimizes connector height above the PCB for tight board-to-board stack-ups
- Tape-and-reel (TR) packaging enables fully automated SMT pick-and-place and reflow soldering
- -K tin (Sn) contact finish is RoHS compliant and lead-free for global environmental regulatory compliance
- Dual-row configuration provides 35 pins per row, reducing connector footprint length versus single-row alternatives
Applications
The TSM-135-01-STL-DH-A-K-TR is designed for high-density board-to-board signal interconnect in slim-form-factor applications including server blades, compact industrial controllers, and stacked PCB assemblies where minimizing connector height is as critical as maximizing signal count. Its 70-position dual-row layout and super-low-profile body make it suitable for automated production of telecommunications backplanes and embedded computing modules with tight Z-axis constraints.
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
How does the super-low-profile (STL) body height of the TSM-135-01-STL-DH-A-K-TR compare to the standard low-profile (TL) variant?
The super-low-profile (STL) designation indicates a body height even lower than the standard low-profile (TL) variant, typically reducing the connector's standing height above the PCB to under 2.5 mm compared to approximately 3.5 mm to 4 mm for TL versions. This difference is significant in stacked-board designs where the total board-to-board gap may be as tight as 6 mm to 8 mm, leaving little clearance for connector bodies.
What is the total position count and signal capacity of the TSM-135-01-STL-DH-A-K-TR for backplane routing?
The TSM-135-01-STL-DH-A-K-TR provides 70 positions arranged in 2 rows of 35 contacts each at a 2.54 mm (0.100") pitch. This allows routing of up to 70 independent signals through a single connector in a body length of approximately 88.9 mm (35 x 2.54 mm), which is roughly half the board space of an equivalent single-row 70-position strip.
Is the TSM-135-01-STL-DH-A-K-TR compatible with lead-free solder paste and reflow processes?
Yes. The -K suffix specifies a tin (Sn) contact finish, which is RoHS compliant and lead-free, making the TSM-135-01-STL-DH-A-K-TR fully compatible with SAC305 or other Sn-Ag-Cu lead-free solder pastes. Standard reflow profiles with peak temperatures up to 260°C are applicable, consistent with IPC/JEDEC J-STD-020 requirements for surface-mount connectors in lead-free assembly processes.
For volume production planning, how does tape-and-reel packaging affect minimum order quantities for this SAMTEC connector?
Tape-and-reel (TR) packaging for connectors of this length typically ships in reels of 500 to 1000 pieces, and many distributors require full-reel minimum order quantities which can range from 500 to 1000 units. Engineers prototyping with fewer than 50 pieces should check distributor availability for cut-tape options, as cut-tape purchases often carry a small surcharge of 10% to 20% above the reel unit price to compensate for reel break handling.
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