TSM-146-04-LM-DV-P-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-146-04-LM-DV-P-TR is a 92-position dual-row surface mount terminal strip with 0.100" (2.54 mm) pitch, delivering high pin-count board-to-board connectivity in a robust, industry-standard footprint. The LM termination and dual-voltage (DV) configuration provide flexibility for backplane and stacked PCB designs. Supplied in tape-and-reel packaging for automated SMT assembly; in stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 92
- Lifecycle
- ACTIVE
- Datasheet
- TSM-146-04-LM-DV-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-146-04-LM-DV-P-TR?
- 92 contacts in dual-row layout on industry-standard 0.100" (2.54 mm) pitch for straightforward PCB routing and wide tool compatibility
- LM (long machine) termination provides additional solder tail length for improved solder joint strength in high-vibration environments
- Dual-voltage (DV) variant supports stacked or offset board configurations requiring two independent mating interfaces
- Tape-and-reel (TR) format enables automated pick-and-place SMT assembly for high-volume production
What is TSM-146-04-LM-DV-P-TR used for?
The TSM-146-04-LM-DV-P-TR is used in high pin-count backplane, daughter-card, and board stacking applications where 92 dual-row contacts at 0.100" pitch provide a reliable, easy-to-route signal interface. It is commonly specified in industrial control systems, telecommunications equipment, and embedded server platforms that require robust, high-contact-count connections. The LM termination style makes it suitable for environments subject to mechanical vibration or thermal cycling that can stress standard-length solder joints.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-146-04-LM-DV-P-TR datasheet?
TSM-146-04-LM-DV-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-146-04-LM-DV-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the LM termination designation on the TSM-146-04-LM-DV-P-TR, and how does it improve reliability?
LM designates a long-machine termination, meaning the solder tails are extended beyond standard length to provide greater solder joint height and fillet area. This longer termination improves mechanical retention strength — a measurable benefit in industrial or automotive applications subject to 5 G to 10 G vibration levels, where shorter solder joints may crack or cold-joint over time due to differential thermal expansion between PCB and connector.
How many signal contacts does the TSM-146-04-LM-DV-P-TR support, and what bus widths are practical?
The TSM-146-04-LM-DV-P-TR provides 92 contacts in a dual-row arrangement at 0.100" (2.54 mm) pitch, with 46 contacts per row. This contact count supports routing full 64-bit data buses with dedicated address, chip-select, and interrupt lines, or alternatively two independent 32-bit buses on separate rows — making it effective for backplane designs where multiple daughter cards must share a parallel bus infrastructure.
When is the TSM-146-04-LM-DV-P-TR preferred over a fine-pitch 0.050" alternative for the same signal count?
The TSM-146-04-LM-DV-P-TR's 0.100" (2.54 mm) pitch is preferred when signal speeds are below 100 MHz and PCB fabrication cost must be minimized, since wider pitch pads allow trace widths of 8 mil or more between contacts, reducing layer count and via requirements. In industrial backplane designs where boards may be field-replaced by technicians, the 0.100" pitch also provides physically larger contact surfaces that tolerate light misalignment during blind mating.
Is the TSM-146-04-LM-DV-P-TR suitable for high-volume automated production, and what packaging does it use?
Yes, the TSM-146-04-LM-DV-P-TR is packaged in tape-and-reel (TR) format, making it compatible with standard automated pick-and-place SMT assembly equipment. The surface mount footprint supports reflow profiles up to 260°C per IPC-J-STD-020 lead-free solder specifications. For a 92-position connector, tape-and-reel packaging significantly reduces per-unit assembly cycle time compared to manual placement from trays or tubes.
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