SEAF-20-05.0-S-05-1-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC SEAF-20-05.0-S-05-1-A-K-TR is a 20-position single-row female board stacking socket connector with 5.0 mm stack height and 0.5 mm pitch gold-plated mating contacts. Designed for reliable board-to-board connections with tin-over-nickel termination contacts. Available in tape-and-reel for automated SMT assembly with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 100
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 20-position single-row female stacking socket with 5.0 mm stack height for precise board-to-board separation control in layered PCB assemblies
- Gold-plated mating contacts over copper alloy substrate providing low contact resistance and high durability for repeated mating cycles
- Tape-and-reel packaging with 0.5 mm fine pitch enabling automated pick-and-place assembly for high-volume production
Applications
SEAF-20-05.0-S-05-1-A-K-TR is used in stackable embedded computing modules, FPGA mezzanine cards, and industrial controller daughter boards where a precise 5.0 mm board separation is required for airflow and component clearance. Its 20-position fine-pitch female socket mates with corresponding SEAM or SEAF male connectors, forming robust board-stacking interconnects in communications equipment and test systems. The gold-contact reliability also suits aerospace and defense avionics modules demanding low-loss, high-reliability board-to-board signal connections.
Specifications
| Pbfree Code | No |
| Factory Lead Time | 7 Weeks, 6 Days |
| YTEOL | 6 |
| Body/Shell Style | SOCKET |
| Connector Type | BOARD STACKING CONNECTOR |
| Contact Finish Mating | GOLD |
| Contact Finish Termination | Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | FEMALE |
| Contact Material | COPPER ALLOY |
| DIN Conformance | NO |
| Filter Feature | NO |
| IEC Conformance | NO |
| JESD-609 Code | e3 |
| MIL Conformance | NO |
| Mixed Contacts | NO |
| Mounting Style | STRAIGHT |
| Mounting Type | BOARD |
| Number Of Connectors | ONE |
| Number of Rows Loaded | 5 |
| Option | GENERAL PURPOSE |
| Terminal Pitch | 1.27mm |
| Termination Type | SURFACE MOUNT |
| Total Number of Contacts | 100 |
| 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What are the pin count, stack height, and contact pitch of SEAF-20-05.0-S-05-1-A-K-TR?
SEAF-20-05.0-S-05-1-A-K-TR features 20 positions in a single row with a 5.0 mm stack height and 0.5 mm contact pitch. The gold-plated mating contacts ensure low and stable contact resistance across many insertion cycles, while the 5.0 mm standoff creates adequate clearance for components on the mating board.
Which board stacking systems can SEAF-20-05.0-S-05-1-A-K-TR mate with?
SEAF-20-05.0-S-05-1-A-K-TR is part of SAMTEC's SEAF/SEAM high-speed board stacking system and mates with corresponding 20-position SEAM male connectors at the 5.0 mm stack height. The system supports differential signal pairs up to multiple Gbps per pair, making it suitable for high-speed backplane and mezzanine card interfaces.
How does the gold contact finish of SEAF-20-05.0-S-05-1-A-K-TR extend connector service life in high-cycle applications?
The gold-plated mating contacts on SEAF-20-05.0-S-05-1-A-K-TR provide excellent oxidation resistance and maintain low contact resistance below 20 milliohms across hundreds of mating cycles. Gold's hardness and chemical stability prevent fretting corrosion that degrades tin contacts, which is critical for test fixtures and hot-swap modules that disconnect and reconnect frequently.
Is SEAF-20-05.0-S-05-1-A-K-TR suitable for automated SMT assembly lines?
Yes, the '-TR' suffix confirms SEAF-20-05.0-S-05-1-A-K-TR ships in tape-and-reel format, compatible with standard pick-and-place equipment for 0.5 mm pitch SMT components. The tin-over-nickel termination contacts are designed for reflow soldering, withstanding peak temperatures of 260°C during standard SMT solder profiles.
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