TSM-118-04-L-DH-P-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-118-04-L-DH-P-TR is a 36-position, 0.100" (2.54 mm) pitch dual-row surface mount terminal strip with low-profile (L) insulator and polarized (P) keying. Supplied in tape and reel, it offers a compact, SMT-compatible 36-pin connector solution for signal and mixed-power interfaces on embedded boards and industrial PCBs.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 36
- Lifecycle
- ACTIVE
- Datasheet
- TSM-118-04-L-DH-P-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 36 positions (18 per row) on 0.100" (2.54 mm) dual-row pitch for moderate-density signal routing
- Low-profile (L) insulator minimizes connector height above the PCB for slim assemblies
- Polarized (P) keying prevents reversed mating on 36-pin interfaces
- Tape and reel (TR) packaging compatible with automated SMT pick-and-place equipment
- RoHS compliant design with gold-plated contacts for corrosion-resistant reliable connections
Applications
The TSM-118-04-L-DH-P-TR is used in embedded single-board computers, daughter-card interconnects, and industrial sensor interface panels where a 36-position dual-row connector must fit a compact PCB footprint with a low-profile insulator. Its polarized keying ensures correct signal orientation in field-replaceable module designs, while the SMT format supports high-volume automated assembly on standard reflow lines.
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 many pins does the TSM-118-04-L-DH-P-TR provide per row, and how does this compare to the TSM-136 in the same series?
The TSM-118-04-L-DH-P-TR provides 18 pins per row for a total of 36 positions on a 0.100" (2.54 mm) pitch, compared to the TSM-136 which offers 36 per row (72 total). Engineers select the 36-position variant when the interface requires fewer than 72 signals, saving PCB board space and reducing connector cost.
Why is the low-profile (L) insulator option important for the TSM-118-04-L-DH-P-TR in multi-board assemblies?
The low-profile insulator reduces the connector's height above the PCB surface compared to standard or high-profile variants. In stacked PCB assemblies where clearance between boards is constrained — for example in a 10 mm board-to-board stack — selecting the L variant avoids mechanical interference with adjacent component bodies or the mating PCB surface.
What happens if a 36-pin mating connector is inserted without polarization into an unpolarized TSM variant versus the P-keyed version?
Without keying, a dual-row 36-pin connector can be mated in reverse polarity (rotated 180°), which swaps all 18 signal lines on each row. The P (polarized) keying on the TSM-118-04-L-DH-P-TR physically blocks reversed insertion, preventing signal inversion errors that could damage connected ICs operating at 3.3 V or 5 V logic levels.
Is the TSM-118-04-L-DH-P-TR RoHS compliant, and does it meet standard Pb-free soldering requirements for SMT reflow?
Yes, the SAMTEC TSM series with the -04 suffix suffix denotes RoHS compliant, lead-free construction compatible with standard Pb-free reflow profiles peaking at 260°C. This makes the TSM-118-04-L-DH-P-TR suitable for use in consumer electronics and industrial products sold in the EU and other markets with RoHS enforcement.
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