TMM-103-03-G-S SAMTEC Connector (Header, Vertical) In Stock
SAMTEC TMM-103-03-G-S is a 3-position single-row through-hole vertical pin header from the TMM Series with 2 mm pitch and gold (20 µin) over nickel (50 µin) contact finish. Its low-profile design and gold termination deliver reliable board-to-board connectivity for compact embedded and instrumentation PCB assemblies.
- Manufacturer
- SAMTEC
- Package
- Header, Vertical
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- TMM-103-03-G-S Datasheet PDF
- Category
- Connector
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 3-position single-row vertical through-hole pin header with 2 mm pitch for compact board-to-board routing
- Gold (20 µin) over nickel (50 µin) mating contact finish for low resistance and high-reliability connections
- Gold with nickel barrier termination finish ensuring consistent solderability
- Low-profile body (0.059 inch depth) minimizing connector height above PCB surface
- 1-week factory lead time for fast-turn prototype and production procurement
Applications
The TMM-103-03-G-S is used in embedded computing modules, medical instrumentation, and portable test equipment where a compact 3-position 2 mm pitch through-hole header is required for reliable board-to-board signaling. Its gold contact finish and low-profile form factor make it ideal for high-cycle mating applications and space-constrained designs such as daughter card interfaces and modular sensor boards.
Specifications
| Pbfree Code | Yes |
| Factory Lead Time | 1Week |
| YTEOL | 8 |
| Additional Feature | LOW PROFILE |
| Body Breadth | 0.079inch |
| Body Depth | 0.059inch |
| Body Length | 0.237inch |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | GOLD (20) OVER NICKEL (50) |
| Contact Finish Termination | Gold (Au) - with Nickel (Ni) barrier |
| Contact Gender | MALE |
| Contact Material | PHOSPHOR BRONZE |
| Contact Pattern | RECTANGULAR |
| Contact Style | SQ PIN-SKT |
| DIN Conformance | NO |
| Filter Feature | NO |
| IEC Conformance | NO |
| Insulator Color | BLACK |
| Insulator Material | LIQUID CRYSTAL POLYMER |
| JESD-609 Code | e4 |
| MIL Conformance | NO |
| Mating Contact Pitch | 0.079inch |
| Mating Contact Row Spacing | 0.079inch |
| 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 | 1 |
| Number of Rows Loaded | 1 |
| Option | GENERAL PURPOSE |
| PCB Contact Pattern | RECTANGULAR |
| PCB Contact Row Spacing | 2mm |
| Plating Thickness | 20u inch |
| Rated Current (Signal) | 3.2A |
| Reference Standard | UL |
| Terminal Length | 0.106inch |
| Terminal Pitch | 2mm |
| Termination Type | SOLDER |
| Total Number of Contacts | 3 |
| Package | Header, Vertical |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8536.69.40.40 |
| Country of Origin | Malaysia, Vietnam |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What gold plating thickness does the TMM-103-03-G-S provide on its mating contacts and what benefit does this offer?
The TMM-103-03-G-S features 20 µin (microinches) of gold over 50 µin of nickel on the mating contacts. This gold thickness delivers excellent wear resistance for repeated mating cycles, low and stable contact resistance, and superior corrosion protection compared to thinner gold or tin finishes, making it suitable for high-reliability medical and instrumentation applications.
How does the 2 mm pitch of the TMM-103-03-G-S compare to standard 2.54 mm pitch headers for compact PCB designs?
The 2 mm pitch of the TMM-103-03-G-S places contacts 0.54 mm closer together than standard 2.54 mm pitch headers, reducing the connector body length by approximately 21% for the same 3-position count. This saves board space on compact embedded modules and portable instruments where PCB area is limited, without sacrificing electrical performance.
Given the TMM-103-03-G-S has a 1-week lead time, is it practical for rapid prototype procurement cycles?
Yes. The 1-week factory lead time means engineers can receive the TMM-103-03-G-S within 7 to 10 business days of ordering, making it practical for fast prototype cycles. With a YTEOL of 8 years, it also has sufficient lifecycle stability for designs moving from prototype to low-volume production without near-term obsolescence risk.
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