TST-109-01-H-D SAMTEC Connector (Other) In Stock
The TST-109-01-H-D is an 18-position dual-row shrouded PCB header from SAMTEC with 0.100" (2.54 mm) pitch and 30 µin gold over nickel contact finish for high-cycle reliability. Its 1.2" body length and rectangular pin-socket contact style suit robust board-to-cable interconnects. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 18
- Lifecycle
- ACTIVE
- Datasheet
- TST-109-01-H-D Datasheet PDF
- Category
- Connector
- Price
- From $2.0738(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-109-01-H-D?
- 18-position dual-row shrouded header at 0.100" (2.54 mm) pitch with 1.2" body length for high-channel-count board-to-cable connectivity
- Heavy gold plating of 30 µin over nickel on square-pin contacts delivers superior corrosion resistance and low contact resistance over thousands of mating cycles
- Shrouded polarized housing prevents mis-mating and protects all 18 male pins during cable connection and disconnection
- 0.485" body depth accommodates standard ribbon cable connectors and IDC assemblies for rapid harness termination
What is TST-109-01-H-D used for?
The TST-109-01-H-D is designed for board-to-cable interconnects in industrial automation, test and measurement equipment, and embedded computing systems requiring reliable 18-signal interfaces. The shrouded dual-row layout with heavy gold contacts supports high-cycle applications such as field-serviceable instrument modules and programmable logic controller I/O boards. It is also well-suited for development platforms and rack-mount systems where IDC ribbon cables carry digital and mixed-signal buses at 0.100" pitch.
What are the specifications of TST-109-01-H-D?
| YTEOL | 9.1 |
| Body Breadth | 0.365inch |
| Body Depth | 0.485inch |
| Body Length | 1.2inch |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | GOLD (30) OVER NICKEL |
| Contact Finish Termination | Gold (Au) - 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 | e4 |
| 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 | 0.115inch |
| 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 |
| Country of Origin | Malaysia, USA |
Where can I find the TST-109-01-H-D datasheet?
TST-109-01-H-D Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TST-109-01-H-D?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Why does the TST-109-01-H-D use 30 µin gold plating instead of the more common 10 µin for its 18 contacts?
The TST-109-01-H-D specifies 30 µin gold over nickel on all 18 contact positions to support higher mating cycle counts, typically exceeding 500 cycles, compared to 10 µin gold which degrades faster in frequent-connect applications. This heavier gold plating is specified for test and measurement equipment, field-serviceable modules, and industrial control panels where connectors are mated and unmated regularly throughout a multi-year service life.
How does the shrouded design of the TST-109-01-H-D prevent wiring errors in an 18-position dual-row cable harness?
The polarized shroud on the TST-109-01-H-D physically constrains the mating cable connector to one correct orientation, preventing reversed or offset insertion across all 18 positions at 0.100" pitch. In a dual-row 18-pin harness carrying mixed power and signal lines, incorrect insertion could short power rails to signal pins, causing immediate circuit damage. The shroud eliminates this risk, making the connector suitable for field technicians assembling complex cable looms.
For an 18-channel PLC I/O board, how does the TST-109-01-H-D's 1.2" body fit alongside other connectors on a constrained PCB?
The TST-109-01-H-D's 1.2" body length houses 9 positions per row at 0.100" pitch in a footprint of 1.2" x 0.485", which fits within the width of a standard DIN-rail PLC I/O module. Designers can place multiple TST-109-01-H-D headers end-to-end along the PCB edge to expand channel count in 18-signal increments, enabling scalable I/O configurations without requiring custom connector solutions.
When is the TST-109-01-H-D a more cost-effective choice than a 20-pin shrouded header for a prototype data acquisition board?
When a data acquisition design requires exactly 18 signals, specifying the TST-109-01-H-D avoids the waste of 2 unused positions in a 20-pin header, saving PCB routing area and reducing cable assembly complexity. For prototype runs, the TST-109-01-H-D is available individually at unit quantities from stock, with no minimum order requirement, allowing engineers to validate 18-channel signal interfaces quickly before committing to volume production.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
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+ | $5.1900 | $5.19 |
| 100+ | $4.5200 | $452.00 |
| 500+ | $3.7100 | $1855.00 |
| 1000+ | $3.1879 | $3187.95 |
| 2500+ | $2.6539 | $6634.73 |
| 5000+ | $2.0738 | $10369.05 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”
You May Also Like
10214-6212PC
3M
Connector
1778573
Phoenix Contact
Connector
5227222-3
TE Connectivity
Connector
S4B-XH-SM4-TB(LF)(SN)
JST (JAPAN SOLDERLESS TERMINALS)
Connector
185226-2
TE Connectivity
Connector
0533980571
Molex
Connector
0360-0-15-01-34-27-10-0
Mill-Max
Connector
7850-0006PR
3M
Connector
AVB 1,5/2/12
BLOCK
Connector
N3764-5002RB
3M
Connector
N3627-6002RB
3M
Connector
N3627-5002RB
3M
Connector
N3440-6002RB
3M
Connector
929715-03-36-I
3M
Connector
929667-02-36-I
3M
Connector
929665-04-36-I
3M
Connector
929665-02-36-I
3M
Connector
929647-04-36-I
3M
Connector
929647-03-36-I
3M
Connector
7834-0006PR
3M
Connector
7826-0006PR
3M
Connector
7820-0006PR
3M
Connector
3440-5002
3M
Connector
3433-5302
3M
Connector