TSM-120-04-F-DH-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-120-04-F-DH-A-K-TR is a 40-position dual-row surface-mount terminal strip with 2.54 mm (0.100") pitch, gold-plated contacts, and tape-and-reel packaging for automated assembly. It provides reliable signal and power connectivity in compact SMT designs. Available from distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 40
- Lifecycle
- ACTIVE
- Datasheet
- TSM-120-04-F-DH-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 40-position dual-row SMT terminal strip at 2.54 mm (0.100") pitch delivering broad signal bus capacity in standard footprint PCB designs
- Gold-plated (F suffix) contact finish minimizing contact resistance and ensuring reliable mating performance in high-cycle connector applications
- Tape-and-reel (TR) packaging supporting high-volume automated pick-and-place assembly, reducing per-unit placement time and error rate
Applications
The TSM-120-04-F-DH-A-K-TR is designed for SMT board-to-board or board-to-cable signal interconnects in industrial automation, embedded computing, and data acquisition systems. Its 40-position dual-row layout efficiently routes large signal buses on backplane PCBs and peripheral expansion cards. The gold contact finish ensures stable electrical performance in applications cycling through mechanical vibration or thermal variation between -55°C and +125°C.
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 signal positions does the TSM-120-04-F-DH-A-K-TR provide, and in what row configuration?
The TSM-120-04-F-DH-A-K-TR provides 40 total positions arranged in a dual-row layout (20 per row) on a 2.54 mm (0.100") pitch. This configuration is standard across a wide range of SAMTEC mating connectors, making it straightforward to design a matched board-to-board or board-to-cable interconnect with a compatible 40-pin header or socket.
What advantage does the gold-plated contact finish provide in the TSM-120-04-F-DH-A-K-TR?
The F suffix designates gold-plated contacts, which provide contact resistance typically below 20 mΩ and excellent resistance to oxidation. Gold plating is preferred in low-level signal applications where even small increases in contact resistance can affect signal integrity, and in applications requiring a large number of mating cycles exceeding 500 insertions over the product lifetime.
Which industries typically use the TSM-120-04-F-DH-A-K-TR as a backplane interconnect solution?
This 40-pin SMT terminal strip is commonly specified in industrial control backplanes, test-and-measurement equipment, and telecom line cards that need a 40-signal interface within a 2.54 mm pitch footprint. Sectors including factory automation, medical instrumentation, and embedded computing use this connector series because it mates with standard 0.100" headers and can handle signal currents up to 3 A per pin in appropriate configurations.
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