TSM-128-04-LM-DH-P-TR SAMTEC Connector (Other) In Stock
Samtec TSM-128-04-LM-DH-P-TR is a 56-position dual-row surface-mount terminal strip with 0.100 inch pitch, offering a low-profile mated height and dual-height body. It features polarization for keyed mating, tape-and-reel packaging, and a robust SMT footprint ideal for high-volume production in industrial and embedded systems.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 56
- Lifecycle
- ACTIVE
- Datasheet
- TSM-128-04-LM-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-128-04-LM-DH-P-TR?
- 56-position dual-row at 0.100 inch (2.54 mm) pitch for wide connector-family compatibility
- Low-profile mated height (LM) minimizing overall board stack height in compact assemblies
- Dual-height body (DH) providing defined board-to-board standoff clearance
- Polarized (P) keying preventing reverse-insertion damage across 56 contacts
- Tape-and-reel (TR) packaging for automated SMT pick-and-place production
What is TSM-128-04-LM-DH-P-TR used for?
TSM-128-04-LM-DH-P-TR is designed for space-constrained board-to-board interconnect in embedded computing, industrial I/O modules, and communications equipment. Its 56-position low-profile dual-row layout enables high signal density at 0.100 inch pitch while maintaining a reduced mated stack height, making it ideal for thin multi-board assemblies in rack-mount and panel-mount enclosures.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-128-04-LM-DH-P-TR datasheet?
TSM-128-04-LM-DH-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-128-04-LM-DH-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the low-profile mated height of TSM-128-04-LM-DH-P-TR benefit designers building thin multi-board assemblies?
The LM (low-profile mated) designation on TSM-128-04-LM-DH-P-TR indicates a reduced mated height compared to standard-height Samtec TSM variants. For thin enclosures or tightly stacked PCB assemblies where overall board-to-board separation must stay below a specific dimension, this low-profile option allows 56-position dual-row connectivity while keeping the mechanical envelope compact.
Can TSM-128-04-LM-DH-P-TR withstand repeated mating cycles in field-replaceable module designs?
Samtec TSM-series terminal strips are rated for multiple mating cycles, and the 56-position TSM-128-04-LM-DH-P-TR is designed for reliable repeated engagement. The polarized (P) keying prevents incorrect insertion across all 56 contacts, reducing wear from accidental misalignment, while the standard 0.100 inch pitch contacts provide robust mechanical retention during each mating event.
Does TSM-128-04-LM-DH-P-TR require special solder paste or reflow profile for SMT assembly?
TSM-128-04-LM-DH-P-TR uses a standard surface-mount termination compatible with industry-standard lead-free (SAC305) solder paste and typical reflow profiles peaking around 245°C to 260°C. No special solder paste formulation is required. The tape-and-reel (TR) packaging feeds directly into pick-and-place equipment, making it compatible with standard SMT production lines handling the 56-position footprint.
How should procurement teams evaluate TSM-128-04-LM-DH-P-TR lifecycle risk for a multi-year production program?
TSM-128-04-LM-DH-P-TR is an active Samtec product, but the specific combination of 56 positions, low mated height, dual-height body, polarization, and tape-and-reel packaging narrows the pool of exact alternates. Procurement teams should confirm current lifecycle status with Samtec, request a form-fit-function alternate part number for risk mitigation, and evaluate whether standard 0.100 inch pitch alternatives can maintain the required 56-position count and standoff dimensions.
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