TSM-120-04-SM-DH-A-K-TR SAMTEC Connector (Other) In Stock
TSM-120-04-SM-DH-A-K-TR is a SAMTEC 40-position dual-row surface-mount terminal strip on 0.100" (2.54 mm) pitch with SMT tail, keying, and tape-and-reel packaging. Designed for automated assembly and reliable high-density PCB interconnect. Available from SAMTEC with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 40
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TSM-120-04-SM-DH-A-K-TR?
- 40-position dual-row layout on 0.100" (2.54 mm) pitch delivers high pin density for parallel bus and multi-channel I/O interconnect applications in compact PCB designs
- Tape-and-reel (TR) packaging paired with SMT tail enables fully automated pick-and-place and reflow soldering in high-volume production environments
- Keying (K) option mechanically prevents incorrect mating, protecting all 40 signal contacts from mismate damage in multi-connector dense board assemblies
What is TSM-120-04-SM-DH-A-K-TR used for?
The TSM-120-04-SM-DH-A-K-TR is used in high-pin-count board-to-board and board-to-wire interconnect applications in embedded computing, industrial automation, and communications equipment. Its 40-position dual-row SMT configuration supports wide parallel data buses, control signal arrays, and expansion module connectors where space is limited and contact density is critical. The tape-and-reel format and keyed housing ensure accurate automated assembly and reliable field-mating performance.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-120-04-SM-DH-A-K-TR datasheet?
TSM-120-04-SM-DH-A-K-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-120-04-SM-DH-A-K-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What pin count and pitch does the TSM-120-04-SM-DH-A-K-TR connector offer?
The TSM-120-04-SM-DH-A-K-TR provides 40 contact positions arranged in a dual-row layout on a 0.100" (2.54 mm) pitch. This configuration delivers a high signal density per unit PCB length, making it well-suited for parallel data bus headers, multi-channel I/O connectors, and expansion card interfaces in embedded and industrial systems.
How does the keying (K) feature on TSM-120-04-SM-DH-A-K-TR protect the connector during mating?
The keying (K) option on the TSM-120-04-SM-DH-A-K-TR mechanically blocks insertion of non-keyed or incorrectly oriented mating connectors into the 40-pin dual-row housing. This prevents pin damage and signal miswiring in densely populated PCB assemblies where two similar-looking 2.54 mm pitch connectors could otherwise be swapped, potentially causing hardware damage or data corruption.
Is the TSM-120-04-SM-DH-A-K-TR designed for reflow soldering and automated assembly?
Yes, the TSM-120-04-SM-DH-A-K-TR's SMT tail termination and tape-and-reel (TR) packaging are specifically designed for automated pick-and-place equipment and lead-free reflow soldering at profiles peaking at 260°C. The consistent reel-packaged orientation enables high-throughput assembly of the 40-position dual-row connector with precise solder paste deposition across all contact pads.
What mating connectors are compatible with the TSM-120-04-SM-DH-A-K-TR on a 2.54 mm pitch?
The TSM-120-04-SM-DH-A-K-TR mates with 40-position dual-row female socket strips on a 2.54 mm pitch, such as SAMTEC's SSM or SSQ series designed for 0.100" headers. IDC ribbon cable assemblies with 40-pin dual-row connectors on 2.54 mm centers are also compatible, provided the mating housing includes the matching polarizing key slot to engage the (K) keyed housing of the TSM connector.
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