TSM-112-01-FM-DH-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-112-01-FM-DH-A-K-TR is a 24-position, 2.54 mm pitch surface-mount dual-row terminal strip with female machined (FM) contacts, friction-lock keying, and tape-and-reel packaging. Each contact handles up to 3 A for reliable SMT board interconnection. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 24
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Female machined (FM) contacts provide superior contact retention force and durability for high-cycle SMT board interconnection
- 24 positions in dual-row 2.54 mm pitch layout enables dense signal and power routing in a compact SMT footprint
- Friction-lock keying (K) combined with tape-and-reel (TR) packaging streamlines accurate, automated PCB assembly
Applications
The TSM-112-01-FM-DH-A-K-TR is designed for backplane interconnects, modular embedded control boards, and industrial expansion cards requiring precision female machined contacts in a 24-pin, 2.54 mm pitch SMT package. Its dual-row layout and keying feature support reliable, polarized mating in densely populated board assemblies. The tape-and-reel format ensures compatibility with automated SMT pick-and-place systems in volume production.
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
What distinguishes the FM (female machined) contact on TSM-112-01-FM-DH-A-K-TR from a stamped contact?
Female machined (FM) contacts are precision-turned from solid brass stock, resulting in tighter dimensional tolerances, higher contact retention force, and longer mating cycle life compared to stamped-and-formed contacts. For a 24-pin connector used in test fixtures or frequently mated modular boards, FM contacts maintain consistent contact resistance below 20 mΩ across hundreds of mating cycles, outperforming standard stamped alternatives.
How does the dual-row layout of TSM-112-01-FM-DH-A-K-TR optimize PCB space at 2.54 mm pitch?
The 24-position dual-row arrangement packs 2 rows of 12 contacts into a footprint of approximately 30.5 mm length at 2.54 mm pitch. This is significantly more compact than routing 24 signals through two separate single-row connectors, reducing PCB trace length, simplifying layout, and freeing board space for other components on embedded modules or compact control cards.
When is TSM-112-01-FM-DH-A-K-TR preferred over TSM-112-02-S-DH-A-K-TR in a design?
TSM-112-01-FM-DH-A-K-TR with female machined contacts (FM, row 1) is preferred when the mating connector uses round or square male pins and high mating-cycle reliability above 500 insertions is required. TSM-112-02-S-DH-A-K-TR (row 2 solder tail) is used for standard solder-termination to PCB pads. The FM variant is chosen for test socket, modular rack, and field-replaceable-unit applications where the connector mates with a male header repeatedly.
What reflow soldering profile is compatible with TSM-112-01-FM-DH-A-K-TR for SMT assembly?
The TSM-112-01-FM-DH-A-K-TR is compatible with standard lead-free SAC305 reflow profiles with a peak temperature of 260°C for up to 30 seconds above 217°C per IPC/JEDEC J-STD-020. The tape-and-reel packaging ensures each 24-position connector is properly oriented for pick-and-place at the feeder station, maintaining correct keying alignment across all boards in a production run.
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