TST-111-03-F-D SAMTEC Connector (Other) In Stock
SAMTEC TST-111-03-F-D is a 22-position shrouded dual-row PCB header with 0.100 inch pitch, gold-flash-over-nickel mating contacts, and tin-over-nickel through-hole termination. The 1.4 inch body with protective shroud ensures polarized cable mating for reliable board-to-cable connections. Available with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 22
- Lifecycle
- ACTIVE
- Datasheet
- TST-111-03-F-D Datasheet PDF
- Category
- Connector
- Price
- From $1.0800(MOQ 2500)
- 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-111-03-F-D?
- 22-position dual-row shrouded header on 0.100 inch (2.54 mm) pitch with 1.4 inch body length for high-signal-count PCB connections
- Gold flash (3 microinch) over nickel mating contact finish balances cost and corrosion resistance for moderate-cycle applications
- Tin-over-nickel through-hole termination with nickel barrier layer prevents tin diffusion and maintains solder-joint integrity across thermal cycles
What is TST-111-03-F-D used for?
The TST-111-03-F-D is used in industrial motor controllers, embedded development boards, and laboratory test fixtures requiring 22-signal board-to-cable connections on the standard 0.100 inch pitch. The shrouded dual-row housing protects contacts during repeated cable assembly and prevents reversed insertion errors in wiring harnesses serviced in the field. Tin-over-nickel through-hole termination provides reliable solder joints suitable for convection reflow or wave soldering in high-volume production environments.
What are the specifications of TST-111-03-F-D?
| YTEOL | 9.1 |
| Body Breadth | 0.365inch |
| Body Depth | 0.365inch |
| Body Length | 1.4inch |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | GOLD FLASH (3) 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 | 3u inch |
| Polarization Key | POLARIZATION NOTCH |
| Terminal Length | 0.565inch |
| Terminal Pitch | 2.54mm |
| Termination Type | SOLDER |
| Total Number of Contacts | 22 |
| 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-111-03-F-D datasheet?
TST-111-03-F-D Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TST-111-03-F-D?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What contact finish does the TST-111-03-F-D use for mating surfaces, and how does it differ from gold-plated alternatives?
The TST-111-03-F-D uses a gold flash finish, which is approximately 3 microinches of gold over nickel, compared to the heavier 30 to 50 microinch gold deposits found on connectors rated for 500 or more mating cycles. The gold flash provides adequate corrosion resistance and low contact resistance for applications with fewer than 50 mating cycles, such as fixed industrial wiring harnesses or board assemblies mated once during final assembly.
For a 22-signal board-to-cable interface in a motor control enclosure, why does the TST-111-03-F-D shroud improve wiring reliability over an open pin header?
The protective shroud surrounding all 22 contacts on the 0.100 inch (2.54 mm) pitch dual-row pattern incorporates a polarizing key that prevents the mating cable connector from being inserted in reverse orientation. In motor control enclosures where incorrect wiring polarity on even a single pin could destroy output drivers operating at 24 V or higher, this mechanical polarization protection eliminates a critical category of wiring error during initial installation and future maintenance.
How does the nickel barrier layer in the tin termination finish of TST-111-03-F-D extend solder-joint life in thermally cycling environments?
The nickel barrier in the TST-111-03-F-D's tin-over-nickel through-hole termination blocks tin atoms from diffusing into the phosphor bronze contact base at elevated temperatures. Without the nickel barrier, tin diffusion during thermal cycling between -40°C and 85°C would deplete the tin layer and create brittle intermetallic compounds at the solder interface, reducing the solder-joint fatigue life. The barrier layer maintains solder-joint integrity over thousands of thermal cycles in industrial automation and power electronics applications.
Related Guides
STM32H753VIT6 High-Performance MCU Design Guide
Practical STM32H753VIT6 design guidance for power, clocks, memory, DMA, PCB layout, bring-up, and production recovery.
Aug 3, 2026
STM32H753ZIT6 Selection Guide for High-Performance Embedded Systems
Select the STM32H753ZIT6 by evaluating compute, memory, LQFP144 pinout, power, interfaces, security, and sourcing requirements.
Aug 3, 2026
ICL7660ACPAZ Negative Voltage Charge Pump Design Guide
Design a reliable ICL7660ACPAZ negative rail with capacitor equations, layout rules, startup checks, and practical troubleshooting.
Aug 2, 2026
C0402C103K3RACTU 10 nF MLCC Design Guide
Practical guidance for applying the C0402C103K3RACTU 10 nF, 25 V X7R MLCC in decoupling, filtering, timing, and EMI-control networks.
Aug 2, 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 |
|---|---|---|
| 2500+ | $1.3500 | $3375.00 |
| 5000+ | $1.1100 | $5550.00 |
| 7500+ | $1.0800 | $8100.00 |
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