TSM-128-03-L-DH-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-128-03-L-DH-A-K-TR is a 56-position, dual-row, 0.100 inch pitch surface mount terminal strip with right-angle (L) orientation and keying for error-proof mating. The dual-row (DH) layout provides 28 contacts per row for dense signal routing in embedded systems, industrial I/O modules, and backplane connectors. Tape-and-reel delivery enables automated SMT assembly in high-volume manufacturing.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 56
- Lifecycle
- ACTIVE
- Datasheet
- TSM-128-03-L-DH-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TSM-128-03-L-DH-A-K-TR?
- 56-position dual-row SMT terminal strip at 0.100 inch (2.54 mm) pitch for high pin density
- Right-angle (L) orientation supports horizontal board-edge access and low-profile enclosure designs
- Keying (K) feature provides polarized mating to prevent reverse connector insertion
- Dual-row (DH) configuration gives 28 contacts per row for versatile signal routing
- Tape-and-reel (TR) packaging enables automated pick-and-place SMT production
What is TSM-128-03-L-DH-A-K-TR used for?
The TSM-128-03-L-DH-A-K-TR is deployed in industrial control interfaces, multi-axis servo drive boards, and embedded computing backplanes that require right-angle 56-pin board edge connectors with polarized mating. Its keying and dual-row layout reduce wiring errors in high-mix assembly and field maintenance, making it reliable for rugged automation equipment and modular I/O expansion cards.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-128-03-L-DH-A-K-TR datasheet?
TSM-128-03-L-DH-A-K-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-128-03-L-DH-A-K-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many positions does the TSM-128-03-L-DH-A-K-TR provide, and how are they arranged across rows?
The SAMTEC TSM-128-03-L-DH-A-K-TR is a 56-position connector with dual rows of 28 contacts each, spaced at 0.100 inch (2.54 mm) pitch. This configuration supports a wide variety of signal, power, and ground assignments across 56 pins, suitable for complex embedded controller interfaces and industrial I/O boards.
What is the purpose of the keying option in the TSM-128-03-L-DH-A-K-TR and when is it critical to specify?
The keying (K) option on the TSM-128-03-L-DH-A-K-TR adds a physical polarization key that prevents the mating connector from being inserted in the wrong orientation. This is critical in 56-pin interfaces where accidental reverse insertion could cause power rail shorts or GPIO damage, particularly in field-serviceable industrial equipment with multiple connector types on the same PCB.
For a right-angle board-edge PCB layout, what height advantage does the TSM-128-03-L-DH-A-K-TR offer?
The right-angle (L) profile of the TSM-128-03-L-DH-A-K-TR orients the mating interface parallel to the PCB surface, keeping the above-board connector height typically under 8 mm. This is beneficial in panel-mount or rack-mounted applications where clearance is limited, and allows front-panel cable access without additional connector extensions or flex harnesses.
Is the TSM-128-03-L-DH-A-K-TR a good choice for servo drive or motor controller I/O expansion boards?
Yes. The 56-position dual-row design at 0.100 inch pitch provides enough pins to accommodate encoder feedback signals, PWM command lines, analog references, enable inputs, and fault outputs on a single 56-pin connector. Right-angle mounting and keying reduce assembly errors during maintenance, which is valuable in multi-axis servo drive cabinets requiring frequent board removal.
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