TSM-128-04-FM-DH-A-P-TR SAMTEC Connector (Other) In Stock
Samtec TSM-128-04-FM-DH-A-P-TR is a 56-position dual-row 0.100" pitch surface mount terminal strip with flush-mount low-profile contacts, polarization peg, and tape-and-reel packaging for reliable high-density SMT signal interconnect in compact PCB assemblies.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 56
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TSM-128-04-FM-DH-A-P-TR?
- 56 positions in a dual-row (DH) configuration at 0.100 inch (2.54 mm) pitch for versatile signal routing
- Flush-mount (FM) contact termination provides minimal solder joint standoff height for low-profile assemblies
- Polarization peg (P) prevents reversed-orientation mating and protects up to 56 signal lines from mis-insertion
- Tape-and-reel (TR) packaging enables automated pick-and-place assembly at production volumes
- A option provides additional alignment or anti-rotation post for mechanical stability during reflow
- RoHS-compliant lead-free construction compatible with lead-free reflow solder profiles
What is TSM-128-04-FM-DH-A-P-TR used for?
TSM-128-04-FM-DH-A-P-TR is suited for industrial I/O modules, embedded computing boards, and communications equipment where 56 signals must be routed through a single 0.100 inch pitch surface mount connector with guaranteed polarization. Its flush-mount contact style and tape-and-reel supply make it a strong choice for high-volume SMT PCB production lines that require consistent, reliable mating height and automated placement.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-128-04-FM-DH-A-P-TR datasheet?
TSM-128-04-FM-DH-A-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-128-04-FM-DH-A-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the flush-mount (FM) contact style on TSM-128-04-FM-DH-A-P-TR affect solder joint height and coplanarity requirements?
The flush-mount (FM) contact termination in TSM-128-04-FM-DH-A-P-TR minimizes the standoff height between the connector body and the PCB pad, reducing the solder joint profile compared to standard gull-wing or J-lead terminations. This makes the connector suitable for low-profile assemblies where total PCB stack height must remain within a few millimetres, and it benefits from tight coplanarity tolerances during reflow.
With 56 positions at 0.100 inch pitch in a dual-row format, what PCB footprint length does TSM-128-04-FM-DH-A-P-TR occupy?
In its dual-row (DH) configuration, TSM-128-04-FM-DH-A-P-TR arranges 28 positions per row at a 0.100 inch (2.54 mm) spacing, giving a total row length of approximately 70 mm. The dual-row layout concentrates 56 signals into this 70 mm span, roughly half the length required by a single-row connector at the same pitch.
How does the P polarization peg on TSM-128-04-FM-DH-A-P-TR prevent assembly errors in automated production?
The P option adds a mechanical polarization peg to the connector body that mates only with a corresponding keying cutout in the mating connector or housing. This physical keying prevents a 56-position mating strip from being inserted rotated 180 degrees, eliminating a wiring error that could damage multiple signal lines simultaneously on the PCB assembly line.
What lead time and supply format should procurement teams expect when ordering TSM-128-04-FM-DH-A-P-TR in quantity?
TSM-128-04-FM-DH-A-P-TR is supplied on tape and reel (TR suffix), supporting automated pick-and-place placement in high-volume production. Samtec TSM series connectors are generally stocked or available within a few weeks, though lead times for specific configured variants with FM, DH, A, and P options may run 2 to 6 weeks; buyers should request a factory quote for confirmed lead times and minimum order quantities.
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