TST-109-02-S-D SAMTEC Connector (Other) In Stock
SAMTEC TST-109-02-S-D is an 18-position dual-row shrouded PCB header with 0.100" pitch, featuring gold-over-nickel contact finish and square pin style for reliable board-to-wire and board-to-board connections in industrial and embedded applications. Available in stock worldwide with fast shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 18
- Lifecycle
- ACTIVE
- Datasheet
- TST-109-02-S-D Datasheet PDF
- Category
- Connector
- Price
- From $1.6131(MOQ 1)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TST-109-02-S-D?
- 18-position dual-row shrouded header at 0.100" (2.54 mm) pitch with polarizing shroud that prevents mis-mating in through-hole PCB assemblies
- Gold (30 µin) over nickel contact finish on mating area ensures low contact resistance and corrosion resistance across extended service life
- Square pin through-hole termination provides strong solder joint pull strength and compatibility with standard 0.100" grid IDC and discrete wire connectors
What is TST-109-02-S-D used for?
The TST-109-02-S-D is widely used in embedded control boards, industrial PLCs, and test and measurement equipment requiring reliable 18-pin IDC ribbon cable connections. Its shrouded dual-row 0.100" pitch design makes it ideal for connecting front-panel I/O ribbon cables, sensor interface harnesses, and programming headers in environments where secure, polarized 18-position board-to-cable connectivity is required.
What are the specifications of TST-109-02-S-D?
| YTEOL | 9.1 |
| Body Breadth | 0.365inch |
| Body Depth | 0.365inch |
| Body Length | 1.2inch |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | GOLD (30) OVER NICKEL |
| Contact Finish Termination | Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | MALE |
| Contact Pattern | RECTANGULAR |
| Contact Style | SQ PIN-SKT |
| DIN Conformance | NO |
| Filter Feature | NO |
| IEC Conformance | NO |
| Insulation Resistance | 5000000000Ω |
| Insulator Color | BLACK |
| Insulator Material | GLASS FILLED POLYESTER |
| JESD-609 Code | e3 |
| MIL Conformance | NO |
| Mating Contact Pitch | 0.1inch |
| Mating Contact Row Spacing | 0.1inch |
| Mating Information | MULTIPLE MATING PARTS AVAILABLE |
| Mixed Contacts | NO |
| Mounting Option 1 | LOCKING |
| Mounting Style | STRAIGHT |
| Mounting Type | BOARD |
| Number Of Connectors | ONE |
| Number Of PCB Rows | 2 |
| Number of Rows Loaded | 2 |
| Option | GENERAL PURPOSE |
| PCB Contact Pattern | RECTANGULAR |
| PCB Contact Row Spacing | 2.54mm |
| Plating Thickness | 30u inch |
| Polarization Key | POLARIZATION NOTCH |
| Terminal Length | 0.165inch |
| Terminal Pitch | 2.54mm |
| Termination Type | SOLDER |
| Total Number of Contacts | 18 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8536.69.40.40 |
Where can I find the TST-109-02-S-D datasheet?
TST-109-02-S-D Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TST-109-02-S-D?
Compatible alternatives and drop-in replacements for TST-109-02-S-D:
Samtec Inc Board Connector, 18 Contact(s), 2 Row(s), Male, Straight, 0.1 inch Pitch, Solder Terminal, Locking, Black Insulator
Frequently Asked Questions
What role does the shroud play in the TST-109-02-S-D for field-installable cable assemblies?
The polarizing shroud on the TST-109-02-S-D physically guides the mating IDC or discrete-wire housing into correct alignment and prevents insertion in a reversed orientation. In 18-position dual-row 0.100" pitch ribbon cable connections, this prevents all 18 contacts from being shifted by one position or reversed, protecting circuits from damage in field-installed industrial control and sensor I/O wiring assemblies.
What is the contact finish specification and how does it affect the TST-109-02-S-D's reliability?
The TST-109-02-S-D uses 30 microinch gold over nickel contact finish on the mating area and tin over nickel on the through-hole termination leads. The 30 µin gold plating provides low and stable contact resistance over thousands of mating cycles, resisting oxidation and fretting corrosion that would otherwise increase contact resistance in industrial vibration environments or humidity-exposed enclosures.
How does the 1.2-inch body length of the TST-109-02-S-D determine PCB board space requirements?
With a body length of 1.2 inches (approximately 30.5 mm) and body breadth of 0.365 inches, the TST-109-02-S-D requires a through-hole footprint footprint spanning 9 positions at 0.100" pitch per row, covering roughly 1.2 inches of PCB length. Designers must reserve this area plus clearance for the mating IDC housing, which typically adds 2-3 mm of overhang on each side of the connector body.
When is the TST-109-02-S-D a better choice than an unkeyed dual-row header for an 18-pin interface?
The TST-109-02-S-D is preferable over unkeyed headers in any application where technicians or end users must mate ribbon cables without visual confirmation of orientation, such as in enclosed industrial panels or dimly lit server chassis. The shroud's 18-position 0.100" pitch polarization key eliminates the risk of reversed insertion that would damage GPIO, power, or communication signals on the connected embedded or PLC board.
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About SAMTEC
SAMTEC is a leading electronic component manufacturer. FindMyChip sources SAMTEC ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $4.0200 | $4.02 |
| 100+ | $3.5100 | $351.00 |
| 500+ | $2.8700 | $1435.00 |
| 1000+ | $2.4602 | $2460.24 |
| 2500+ | $2.0575 | $5143.73 |
| 5000+ | $1.6131 | $8065.50 |
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